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A duplex in Australia costs $550,000 to $1.2 million to build. That's about $2,000 to $3,800 per square metre, says Boda Building Group's 2026 cost guide. Your price depends on your location, size, and finish level.

Duplex build costs vary widely across Australia. A small, basic duplex in regional Victoria looks nothing like a fancy two-storey build in inner Melbourne. The ranges in this guide cover the whole market, from basic regional builds to premium ones. A bespoke duplex in an established Melbourne suburb can sit well above them.

This guide breaks costs down by city and by finish level.

What are the average duplex build costs in Australia?

A standard duplex costs $550,000 to $1.2 million to build, says Boda Building Group's 2026 cost guide. Where you land depends on finishes, location, and site conditions.

Your finish level (basic, mid-range, or high-end) can change the cost per square metre a lot. The table below shows what each tier gets you.

Sourced from Boda Building Group, "Duplex & Triplex Build Cost Guide 2026.

Turnkey extras, like landscaping and driveways, add 15 to 30%, says Boda Building Group. Ask your builder for this figure early. This number can shift your total more than you'd think.

A worked cost example

Take a mid-spec duplex with 300 m² of floor area, or 150 m² per home. At $2,600 per m², that's $780,000 for the base build. Add 20% for turnkey extras like driveways and landscaping, and you get $936,000 all-in.

At $3,100 per m², the base build costs $930,000, or $1,116,000 turnkey. So a typical mid-spec duplex costs $936,000 to $1.1 million, before land.

How much does it cost to build a duplex in Sydney?

In Western Sydney, a duplex costs $650,000 to $1.6 million or more all-in, depending on size and spec, says Buildana, a licensed local builder. The table below shows 2026 Sydney rates by build standard.

Sourced from Buildana, "Duplex Build Cost Sydney," 2026.

A 300 m² medium brick veneer duplex costs $658,500 to $711,000 to build. A bigger 400 m² full brick build costs $912,000 to $982,000. Both figures cover construction only.

Add demolition, site works, council fees, and external works on top of that. Once those are in, a standard 2 × 120 m² duplex in Western Sydney costs $650,000 to $750,000 all-in. A large 2 × 200 m² build runs $1.2 million to $1.4 million.

What does a duplex cost to build in Melbourne, Brisbane, and beyond?

Building a townhouse-style dwelling in Melbourne costs $2,800 to $4,850 per square metre, according to Rider Levett Bucknall's Riders Digest 2026. RLB doesn't price duplexes separately, so its townhouse rate is the closest guide.

RLB puts a 90 to 120 m² unit at $315,000 to $700,000. For both homes in a duplex, that's roughly $630,000 to $1.4 million. These rates exclude GST, land, professional fees, and site works.

Brisbane starts a little lower, at $2,600 per square metre for townhouses, according to RLB, though its top end reaches $5,100. The Gold Coast generally sits closer to Brisbane prices than Sydney prices. However, site conditions and council rules can still push costs up.

Regional Victoria and Queensland builds usually cost less than capital city ones. But "regional" doesn't mean "easy." Tough sites, fewer tradies, and slow material delivery can close that gap fast.

Where does the money actually go?

In a typical Australian apartment build, the superstructure and services cost the most. Each takes up 20 to 30% of your build cost, says Feasly's cost guide.

Feasly uses the AIQS cost model, the standard across the industry. It's based on apartment data, not duplexes, so treat it as a rough guide for a duplex. Here's the full breakdown.

Sourced from Feasly, "Quantity Surveyors in Australian Property Development." These are typical ranges, not a fixed split, so figures can overlap between projects.

The frame and internal finishes swing your final cost the most. That's where choices like kitchen quality, tiles, and flooring matter most.

Builders and owners often underestimate professional fees and approvals. Fees vary by state, and building permit fees vary between surveyors. They can run into the thousands before you pour a slab, so ask your council and building surveyor for exact figures early.

What's the cheapest way to build a duplex?

The cheapest way to build a duplex is to use a builder's standard duplex plan. Build both homes at once on a flat, serviced block. Keep the design simple.

That means a compact, single-storey, rectangular shape with one straight shared wall. Skip custom design, sloping sites, premium finishes, and staged building.

The cheapest duplex you can build starts at about $550,000, says Boda Building Group. That's a small, basic build on a flat, simple site in a regional or outer-suburban area.

Lowest-cost formula

Dollar figures sourced from Boda Building Group's mid-spec rate where noted.

Is building a duplex profitable?

A duplex can be profitable, but it isn't automatic. That only happens when your end value, from sale or rent, beats your full cost by a safe margin. That cost includes tax, finance, approvals, site works, and a buffer for surprises.

The feasibility test

For a build-and-sell project, use this simple formula. Every number needs to be realistic, not your best case.

Development profit = Net sale proceeds − Total development cost

Use your net sale proceeds, not the advertised price. Your total cost should include everything in the table below.

Comparing only "build cost" against two sale prices isn't a real feasibility study. Every cost in the table above needs to count, not only the obvious ones.

A worked illustration

This is an example only, not a market estimate for any real place. The numbers below show how the formula works.

This project nets a $150,000 pre-tax profit, but an 8.6% margin may not be worth the money, time, and risk. A small cost blowout, low valuation, delay, or weak market could wipe it out.

What usually determines profit

A duplex works better when a few key factors line up in your favour. Here are the ones that matter most.

• Land Value: Buying land below market, or holding it long enough that price stops mattering, boosts your margin.
• Dual Rental Income: Two homes mean two rent cheques from one block, whether you live in one or rent both.
• Shared Infrastructure: A duplex shares foundations, walls, and often plumbing and wiring, which is cheaper than building 2 separate houses on 2 blocks.
• Strata Titling: Splitting a duplex into 2 titles can push its value above the combined build and land cost, though the gain varies by suburb.
• Tight Cost Control: A realistic buffer keeps your numbers honest, instead of relying on best-case guesses.

It's not always a win, though. If your build cost runs over, your end value comes in low, or your council says no to subdivision, the numbers can turn fast.

Site costs, approval delays, and loan interest all eat into your margin. Get a feasibility study done before you commit, not after.

What costs do people forget to budget for?

People budget the build cost, then forget almost everything else. Geotech reports, council fees, and a buffer rarely make the first draft.

They still sit outside the headline price. Your full budget should include all of this:

• Demolition
• Geotechnical and survey reports
• Planning permit and approval fees
• Building permit costs
• Energy rating assessment
• Surveying and engineering reports
• Landscaping and external works
• Contingency

Demolition

Costs depend on the building's size and any asbestos found, so get a quote for your site first. 

Asbestos Victoria sets a clear threshold for non-friable asbestos. Anything over 10 square metres must be removed by a licensed asbestos removalist. A licence is also needed once the work passes one hour in any seven days.

Geotechnical and survey reports

You usually need these before you can apply for a planning permit. The soil report also sets your footing design, which affects your build cost.

Planning permit and approval fees

In Victoria, these are set by state regulation and rise each financial year, according to Planning Victoria. A VicSmart application for work over $10,000 costs $500.80 in 2026–27. Subdividing adds separate fees, paid to your council and any referral authorities.

Building permit costs

Your building surveyor sets these. They vary by project size and council. Get a quote early, since fees vary more between providers than you'd expect.

Energy rating assessment

New Victorian homes need a 7-star NatHERS rating. The usual route is a report from a NatHERS-accredited assessor. 

You submit it with your building permit application. Get it checked early, since it can affect your design.

Surveying and engineering reports

Your consultants price these based on how tricky your site is. Get quotes early. A difficult soil report can change your foundation design and cost.

Landscaping and external works

Driveways, fencing, retaining walls, and gardens cost extra. They sit outside the build cost above and need their own quote. Ask a landscaper once your contract is nearly final, since this cost is easy to underestimate.

Contingency

Cost surprises are normal on a duplex build, not rare, so budget for one from day one. Boda Building Group's 2026 outlook puts a safe baseline at 8 to 12%. Go higher if your site or design carries extra risk.

If you're splitting titles after the build, add subdivision and strata costs on top. Your solicitor or conveyancer can give you a real figure once your design is locked in.

Is a duplex worth the extra cost over a single home?

A duplex is worth the extra cost if you want two homes on one block, not one. That could mean renting out, selling, or housing a family in the second home. You pay more than a single home costs, but you get two homes for it.

The cost per home is usually lower than building two separate houses on two blocks. Sharing structure, site works, and one approval process across two homes saves real money.

Whether this pays off depends on your land, your market, and your goals. For investors, two rent cheques and subdivision upside often justify the higher upfront cost. For owner-occupiers, living with family or renting out one home to help with the mortgage makes an equally strong case.

FAQ

Can you build a duplex for $600,000?

A $600,000 duplex is possible, but with limits. At that budget, expect a small, low-to-mid-spec build in Brisbane or regional NSW, at Boda Building Group's $2,000 per m² tier. 

In Sydney, Buildana's all-in figures start at $650,000 for a compact 2 × 120 m² duplex in Western Sydney. In Melbourne, Rider Levett Bucknall prices a townhouse unit from $315,000, so two units start at about $630,000 before site works.

Do I need special planning approval to build a duplex?

In most Australian states and councils, yes, you need a planning permit. Victoria calls a duplex a "dual occupancy," assessed under ResCode. Since 16 October 2025, eligible projects can use the fast-track VicSmart pathway.

Amendment VC288 cuts approval to 10 business days for those projects. Requirements still vary by council, zoning, and overlays. Check your council's planning scheme before assuming your block qualifies.

What is the difference between a duplex and a dual occupancy?

A duplex and a dual occupancy are the same thing: two separate homes on one lot. "Duplex" is the everyday term, and "dual occupancy" is the legal term most councils use. They share one wall and can be strata or Torrens titled.

About Riser

At Riser, we design and build premium, bespoke custom homes across Melbourne, including new custom builds and selected dual occupancy projects.

Every site is different, so the ranges here are a starting point, not a quote. Our duplexes are premium, bespoke builds, starting from about $1.6 million.

Try our cost calculator for a rough figure first.

From there, book a consultation. We'll talk through your block, your budget, and what's realistically possible. Contact us to get started.

The cost to build townhouses and multi-unit buildings in Melbourne depends on numerous factors. These include the construction costs, home builders costs, the cost of land, and site costs. There are also lesser factors that affect prices, such as foundation type, insulation quality, and the size dimensions of your building. Overall, there is a wide range of costs; some homeowners might pay $300 per square foot. However, this price is only a starting point.

If you're looking to invest in a dual occupancy project and build multi-unit buildings in Melbourne, you can expect to pay anywhere between $350 and $850 per square foot.

In this article, we explore all the different factors that affect the final price for building two townhouses or multi-unit buildings in Melbourne. Also, we'll touch on the exact numbers and help you determine how much does it cost to invest in dual occupancy development in Melbourne.

What is a Townhouse?

A townhouse is a multi-story residence that is connected to one or more other units. You'll commonly see them along the roadways in dense suburban and metropolitan locations. Townhouses resemble regular detached homes but operate more like condominiums, or condos, in that they are all governed by the same entity.

What is a Multi-Unit Building?

Multi-unit buildings are buildings with more than one residential unit. Within the same building, many units can be stacked one on top of the other or side by side.

What is a Dual Occupancy Building?

Dual occupancy is a building with two flats or houses on one title. There are a variety of arrangements that can be used for dual occupancy buildings. This could be two side-by-side houses with street frontage that are connected. It could also be one house behind the other that includes driveway access on one side to access the property.

If you're interested in finding out the costs of building townhouses in Melbourne, it is essential to understand all the factors affecting development costs. The prices of building townhouses or multi-unit buildings depend on numerous considerations, and we will explore them in more detail later on.

First, let's find out why people choose to invest in dual occupancy buildings or multiple buildings at all.

Why Invest in Dual Occupancy Buildings in Melbourne?

There are numerous reasons for building multi-unit dwellings in Melbourne. Primarily, these projects remain cost-effective over time.

Also, there is a growing demand for dual occupancy dwellings. People want to live closer together and use their money on education, travel, and other expenses. This has created high demand for the small units since they cost less to run.

Dual occupancy buildings are also cost-effective.

To build two townhouses in Melbourne, you'll need to purchase land, and the cost of construction is divided into two or more units. At first glance, this may seem too costly for some investors, but it pays off significantly over time with the right strategy.

The cost to build two townhouses in Melbourne is typically less than half the cost of a stand-alone house.

In addition, you can rent out one unit and live in the other. This way, your living expenses are covered with only one unit, and when you pay off the building costs, you can even build wealth by renting.

Now, let's explore all the factors that affect the build cost and how much does it cost exactly to invest in multiple property development in Melbourne.

What is the Cost to Build 2 Townhouses, Melbourne, Australia?

In this section, we will look at all the factors that affect the cost to build two houses in Melbourne and provide you with a cost estimate for building dual occupancy housing.

The Cost of Construction

Typically, construction costs make up a significant cost for two townhouses in Melbourne. The cost to build a dual occupancy housing unit accounts for about the majority of the total cost.

In general, for a single-story building that uses basic materials for construction, the average price is $1000 per square meter. An upmarket luxury build could cost you up o $3000 per square meter for a double storey dwelling.

In a typical suburban area, a dual occupation building or two townhouse developments cost about $1350 per square meter, or $1700 with site costs.​ An average 3 bedroom townhouse will cost $250,000 upwards per unit.

The cost to build two townhouses in Melbourne varies and depends on multiple factors such as:

• type and quality of materials used;  
• required design elements;
• the cost of labor in the area;
• development sites cost;
• the cost of land;
• other costs.

Type and Quality of Materials Used

Your building costs will increase if you decide to go for better-quality materials. For example, building two townhouses in Melbourne with essential build materials like brick and wood may cost you around $150 - $300 per square metre, whereas using costlier material could cost almost double. It is best to look for builders cost crunches online to see the cost breakdowns of different materials used for building townhouses.

Required Design Elements

Townhouse layouts are costlier to design if you want them to stand out. For instance, you may opt for more complex architecture with more expensive materials and design elements like high-end kitchens and bathrooms, fancy tiles, and other cost-intensive features.

The Cost of Labor

If you decide to hire a contractor for your project, it will add costs to your final price as the cost of labor can be pretty pricey. Normally, the cost to build a townhouse in Melbourne for a 100 square meter project could cost you about $25,000 -$50,000.

Development Site Cost

The cost of buying a development site for building two townhouses in Melbourne will affect building them. It is recommended to hire town planners prior to the purchase as they can advise buyers which developments are allowed.

You can save on costs by buying an existing house for redevelopment. For example, the price to purchase and redevelop an existing house in Melbourne is estimated at around $100 per square meter whereas the cost to build new townhouses is estimated at around $150 per square meter.

The Cost of Land

The cost of land is another major cost when building two dwellings. So how much does it cost to acquire land in Melbourne? The price of land fluctuates depending on many factors, mainly location and availability. The price ranges between $150,000 and $875,000.

Keep in mind you will be charged an extra cost if you plan to build a new house or multiple buildings in a more popular area with high demand for housing projects. However, if you go for less popular areas (for example flood-prone areas), you will pay less for the land

As with any construction project in Australia, you'll need to check local planning laws when buying land for two units and ensure appropriate planning permits.

Other Costs

In addition to construction costs and the cost of the land, you need to take into account several other factors that will affect the final price, such as:

• Land tax
• Town planning permit
• Goods and service tax
• Legal cost
• Site management

The Hidden Cost of Building a Duplex or Multiple Townhouses

When building a duplex, multiple townhouses, and multi-unit buildings, there are some hidden costs people tend to forget about, such as

• The cost of demolishing an existing house before building a new one.
• The cost of making infrastructure improvements. This may include upgrading public services like power, water supply, etc.
• The cost of property advertisements for selling or leasing out your properties.

Another important cost that is peculiar for this type of property only is the subdivision of a property.

Property Subdivision Cost

Subdivision of a property isn't straightforward and includes multiple costs such as consulting fees and town planners.

In order to subdivide a property, you need to pay an application fee and have it approved. After that, you will have to hire a surveyor who will cost you about $2,000 -$3,500. Then comes the cost of land division itself at approximately $5 per square meter followed by a cost of land survey (if the surveyor didn't do it).

How to Reduce Costs When Building Townhouses, Melbourne?

When it comes to the build price of two or more townhouses or multi-unit buildings, you should keep in mind that there are several ways you can reduce your construction cost.

First, you can choose to build townhouses instead of units. Townhouses are larger than units and cost less per square metre because the cost is divided between two properties.

You can also opt for modular construction instead of the traditional brick-by-brick building, which reduces cost. Modular home builders in Melbourne use prefabricated construction to keep costs low.

You can also save on the cost by building dual occupancy homes instead of two separate properties. Of course, this will depend on your requirements and living arrangements.

Finally, you can choose to build smaller dwellings that cost less than large properties.

Materials, Furnishings, and Appliances

You can also save a significant amount of money if you purchase all materials yourself. Materials manufacturers offer volume discounts when you buy in bulk, significantly reducing the final purchase price.

The cost of furnishing and appliances vary greatly depending on whether you purchase them one by one or in bulk. For example, suppose you need to buy kitchen cabinets and appliances for two townhouses. In that case, cost savings are maximized if you purchase these items simultaneously, which directly impacts the final purchase price.

How to Make Sure Your Townhouse or Duplex Development Project Pays Off?

If you're wondering whether your investment will pay off, contact a respected company in the construction industry. From cost estimation to cost control and even a feasibility report, they will take care of every aspect of the construction process from start to finish.

In addition, cost consultants can give you valuable advice on reducing costs when building multiple units and townhouses and ensure cost savings, which can be used to attract potential buyers.

If you want to sell your development as soon as possible and avoid huge losses, cost consultants will help you achieve the best price for your property by offering cost-effective building solutions.

With their assistance, you should easily overcome any difficulties during cost estimation and cost control.

How Can Riser Bespoke Builders Help You?

Father-and-son team Jeff and Logan Wang are at the heart of Riser Bespoke Builders. Founded in November 2014, Riser Bespoke Builders now builds 55+ homes a year. The company has a team of more than 25, 35+ proven and trusted subcontractor teams, and an office in South Yarra.

Riser Bespoke Builders offer free consultation calls and help you get a cost estimate in less than a minute! Also, check out their cost calculator to help you estimate the precise cost of the property you are planning to build.

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A Melbourne townhouse costs $2,772 to $3,036 per square metre to build in 2026, says Pekaj Group. That's the current rate for custom and small-scale builders, including margin and GST. Most single townhouses land between $400,000 and $700,000 before land, according to Duotax.

The average Victorian townhouse cost $468,298 to build in 2024-25, or about $2,567 per square metre, says Master Builders NSW. That average sits below 2026 custom-builder rates, partly because it predates 2026 pricing. It also covers volume builders, whose rates run 20–25% lower than custom builders'.

Published townhouse build costs in Melbourne are a benchmark, not a quote. Your own cost will move with the site, the design, and the finish level. A builder's site-specific quote is the only reliable figure for your project.

What does a townhouse cost by specification level?

A standard-spec townhouse costs about $2,100 to $2,300 per square metre in trade terms. That's before the builder's margin and GST.

Once margin and GST are added, that becomes $2,772 to $3,036 per square metre all-in, says Pekaj Group's Melbourne data. On a 182 m² townhouse, the Victorian average floor area, that's roughly $505,000 to $553,000 for the build itself.

What does a townhouse cost per square metre?

A Victorian townhouse costs about $2,567 per square metre, according to Master Builders NSW's 2024-25 figures. The national average is about $2,493 per square metre. Both are published per-m² rates in that compilation.

Melbourne's market rate sits higher. It runs $2,772 to $3,036 per square metre all-in for a standard two-storey build, says Pekaj Group.

Inner and affluent suburbs like Toorak, South Yarra, Brighton, Kew, and Hawthorn often sit above that range. Heritage overlays, tight access, and permit complexity push costs up there.

These are construction-only figures. They leave out land, demolition, consultant fees, and council approvals. Add those in, and your total budget sits much higher.

Is it cheaper to build a house or a townhouse?

A house costs less per square metre than a townhouse, on average. Landmark Valuations puts the national average at $1,967 per square metre for a house. 

A townhouse averages $2,493, says Master Builders NSW. In Victoria, it's $1,914 for a house against $2,567 for a townhouse.

A townhouse usually needs a staircase, upper-floor plumbing, and shared-wall fire separation. A single-storey house needs none of these. That's largely why it costs less per square metre.

A townhouse development can produce more dwellings than a single house on the same block of land. That's usually the point of building one.

Townhouse build costs have climbed for most of the past two decades, despite a few down years. Master Builders NSW data shows townhouse costs have more than doubled since 2007-08. The average went from $184,419 to $435,089 in 2024-25.

What drives the cost of a townhouse build?

Site conditions, design, storeys, services, and council rules all drive the cost of a townhouse build. Each one can move the price by tens of thousands of dollars per dwelling.

Site conditions and earthworks

A flat, easy-access block with good soil is the cheapest starting point. A sloping block, reactive soil, or hard access adds cost.

Site prep can add real money before the slab is poured. The harder the site, the higher that figure climbs.

Rocky ground needs rock-breaking equipment. Poor soil classifications need engineered slab systems instead of standard footings.

Rock-breaking and engineered slabs aren't optional once the site needs them. A soil and contour report early in design is a small cost, and it can prevent a much larger one later.

Design complexity and finishes

A simple, repeated layout across several townhouses costs less per dwelling than a unique design for each one. Standard fittings cost much less than custom joinery and premium facades.

Choices around finishes give you the most control over your budget. Stone benchtops, custom joinery, and large-format tiles all add real cost, well above a standard fit-out.

Number of storeys

A double-storey townhouse usually costs more per square metre than a single-storey one. The staircase, extra structural work, and upper-floor wet areas add cost.

A double-storey design fits more floor area on a smaller block. That's the usual reason to build one in Melbourne.

Services and infrastructure

Each dwelling in a multi-townhouse development usually needs its own service connection, not a shared one. Service upgrades add real cost on top of the build. Permit fees add further cost, and both vary by council and site.

Council infrastructure contributions sit on top of this. These are mandatory levies for roads, drainage, and open space. The amount varies by council and project size, so budget for it early.

Council requirements and compliance

Planning and building compliance is a real cost centre on any townhouse project. Professional fees cover design, engineering, and approvals.

They typically run 8% to 12% of construction cost, says Riser's own house-cost guide. On a $550,000 build, that's roughly $44,000 to $66,000.

Most Melbourne multi-dwelling developments need a planning permit. Under Victoria's planning regulations, councils get 60 business days to decide a standard application.

That clock restarts after an information request. An experienced town planner, hired early, knows what a council will accept.

How long does it take to build a townhouse?

A townhouse takes about 14.8 months on average, from approval to completion. That's based on Riser's own analysis of ABS data. That breaks down to 3.1 months from approval to the start of construction, then 11.7 months of construction.

That's the national average for townhouses. Custom single houses usually take longer. Design and documentation before approval add more time, commonly 2 to 4 months for working drawings.

A planning permit takes around five months on average in metropolitan Melbourne. That sits well above the 60-business-day clock set by Victoria's planning regulations. The clock restarts after an information request. 

A VCAT appeal, if lodged, adds six to twelve months on top.

What does the total project budget look like?

For a $550,000 mid-range build, a realistic total budget lands around $650,000 to $725,000. That's once professional fees and a contingency are added.

Construction is only one line item in that total, not the whole of it. The rest covers design fees, town planning, engineering, a building surveyor, and contingency. Land, demolition, landscaping, council contributions, and service connections sit on top.

Simple formula

Total project budget = Construction + Professional fees + Contingency

$550,000 + $55,000 + $82,500 = $687,500

Building more than one townhouse?

Building several townhouses on one block usually costs less per dwelling than a single stand-alone townhouse. Shared site costs, footings, services, and subdivision spread across more dwellings. They bring the per-unit figure down as the block gets denser.

A four-townhouse project splits its driveway, retaining walls, and utility connections four ways instead of one. That saving isn't unlimited, though.

Beyond a certain density, extra storeys, fire separation, and parking rules can add cost back in. Our guide to building multiple townhouses in Melbourne breaks the costs down for 2, 3, and 4-plus townhouse developments.

FAQ

Can you build a townhouse for $400,000?

Yes, but only for a smaller or simpler townhouse. At Pekaj Group's 2026 rates of $2,772 to $3,036 per square metre, $400,000 builds about 130 to 145 square metres. That's well short of the 182 m² Victorian average, says Master Builders NSW. 

The site matters too, since a sloping, rocky, or reactive-clay block can add $30,000 to $100,000 before the slab is poured.

Can you build a townhouse for $600,000?

Yes, for a standard-spec double-storey townhouse on a flat block. Pekaj Group prices a 200 m² example at $580,800, including builder's margin and GST. That leaves about $19,000 spare, and it excludes land, professional fees and council costs. 

Moving from standard to mid-range finishes adds $40,000 to $80,000, so the fit-out decides whether you stay on budget.

How much does it cost to build a 3-bedroom townhouse?

Builders price townhouses by floor area, not bedroom count, so start with size. The average new Victorian townhouse was 182 m² in 2024-25 and cost $468,298, says Master Builders NSW. 

At Pekaj Group's 2026 rates, that size costs roughly $505,000 to $553,000 to build. A larger plan, or one with extra bathrooms, usually sits higher.

How much does it cost to build a townhouse complex of 4 or 5 dwellings?

Four townhouses at Duotax's $400,000 to $700,000 per-dwelling range cost roughly $1.6 million to $2.8 million to build. That's before land, professional fees, and council contributions. 

Does Melbourne cost more to build than other Australian cities?

Victorian townhouses cost more than the national average but less than NSW, at $2,567 per square metre in 2024-25, says Master Builders NSW. Brisbane is one of the fastest-rising markets in 2026, according to Turner & Townsend figures reported by Landmark Valuations. The 2032 Olympics and health infrastructure are driving it.

Planning your townhouse build with Riser

A Melbourne townhouse typically costs $400,000 to $700,000 to build before land. But your site, design, and finishes decide where you land in that range. 

Budget for professional fees and a contingency from day one. Treat published rates as a starting point, not a quote.

At Riser, we design and build premium, bespoke custom homes across Melbourne, including new custom builds and selected dual occupancy projects.

If you're weighing up your own build, get a rough figure first with our cost calculator. For a detailed estimate for your site, contact us to book a consultation.

There was a time- not too long ago- when the single dwelling house was the default choice for buyers everywhere—families, especially.

But times change with the seasons, and the last decade has seen a shift in buyer behaviours as demographics change, and with it, their priorities.

The townhouse has emerged as a real threat to the enduring popularity of the single dwelling. If you are wondering which is the best choice for you, this article breaks down their respective pros and cons.

Townhouse compared to single dwelling: definitions

Townhouses are multiple dwellings under one roof that share a wall.

Single dwellings are, well, as the name suggests- single dwellings, be it in a detached or semi-detached property.

Now we have the basics out of the way, how do they stack up?

Townhouse pros and cons

The plot and build of a townhouse may be more expensive than a single house, but with several dwellings on just one plot of land, they work out significantly cheaper than two houses. And they provide multiple incomes from a single asset.

They are typically built near amenities and transport links, so the location can be a huge draw for investors and renters alike. Upkeep is cheaper than houses too; another attraction for potential renters.

However, capital growth is typically smaller than that of single dwellings.

Pro's

• cheaper than buying two houses: two rental incomes from one asset
• locations are popular with investors and renters
• come with modern amenities
• social benefits to townhouse living, but with a decent level of privacy too

Con's

• less space than a single dwelling (usually)
• multi-levels can be an issue with the elderly or less mobile
• typically less capital growth than single dwellings

Single dwelling pros and cons

Single dwellings have been the go-to for families (especially young ones) for years. And it's easy to see why.

They are usually in the suburbs, spacious, with garden space for the kids and (relative) privacy.

However, this space and privacy does come at a cost as land rates, utilities, insurance, and maintenance is higher than in townhouses.

Pros

• more space
• more privacy
• often easier to finance
• better capital growth potential

Cons

• more expensive to buy- costs to live in popular areas can be hefty
• more expensive to maintain
• less potential rental yield than a townhouse

The verdict

Which property is best for you will depend upon your particular circumstances and priorities.

If you are looking at it as an investment, then it boils down to whether you are prioritising capital growth (which favours single dwellings) or rental yield (which favours townhouses).

If you are looking to live in the property yourself, you will want to factor in things like the location you want for you (and your family, if you have one) and- lest we forget!- your budget.

We hope this guide has helped clear up the differences and distinctions between the two and helped move you one step further along the journey to finding your dream home!