Building a townhouse can be a smart way to enter the property market, create rental income, or unlock the value of a block you already own. Still, buying the wrong site can turn an exciting project into a money pit faster than you can say “variation claim”.
At MJS Construction Group, we have spent more than 35 years working across Melbourne suburbs like Bentleigh East, Beaumaris, Glen Iris, and Camberwell. One lesson keeps coming up: the success of a townhouse project is decided long before construction begins. It starts with the land.
A block may look perfect during a Saturday inspection. Flat grass. Good street appeal. Close to transport. Then the surveys arrive. Suddenly there is reactive clay, a drainage easement running through the backyard, and council overlays that limit what can be built. We have seen it happen more times than we can count.
Before you commit to buying land for a townhouse development, here is what you need to check.
Why the Cheapest Block Can Become the Most Expensive Townhouse Site
Many buyers focus heavily on purchase price. Fair enough. Land in Melbourne is not getting cheaper. Still, a low purchase price does not always mean good value.
We once inspected a block in Bayside for a client who thought they had found a bargain. On paper, it looked ideal for two side-by-side townhouses. Then the engineering and soil reports came back. The site had significant fill, poor drainage, and a sewer easement exactly where the second townhouse needed to sit.
The owner saved $80,000 buying the site but faced nearly $140,000 in unexpected site and compliance costs.
That is the rub with townhouse development. The hidden costs are often underground or buried in planning controls.
“A good townhouse site is not just affordable. It is buildable, compliant, and financially sound.”
Check the Zoning Before You Fall in Love With the Land
Zoning tells you what council may allow on the land. It affects building height, density, setbacks, private open space, and parking requirements.
In Victoria, zoning rules sit under local planning schemes. Councils across Melbourne interpret these controls differently, which is why early checks matter.
What Townhouse Zoning Can Tell You Early
Before signing a contract, confirm:
- Whether multiple dwellings are allowed
- Maximum building height
- Site coverage limits
- Required setbacks
- Parking obligations
- Open space requirements
A block zoned for residential use does not automatically mean it suits townhouse development. Some sites support two dwellings comfortably. Others become a squeeze before the architect even starts sketching.
Melbourne Councils Can Treat Similar Blocks Differently
This catches many buyers off guard.
A block in Bentleigh East may support two modern side-by-side townhouses with minimal planning resistance. A similar-sized site in Caulfield or Malvern may face stricter neighbourhood character rules or heritage concerns.
Councils such as Glen Eira, Bayside, Kingston, and Boroondara each apply planning policies differently. Local knowledge matters here. A builder and town planner familiar with Melbourne councils can often spot issues before money changes hands.
Planning Overlays Can Change the Whole Feasibility Picture
Planning overlays add another layer of control over the land. These overlays deal with issues such as heritage, vegetation, flooding, or bushfire risk.
On paper, overlays can look harmless. In reality, they can reshape the entire project.
Heritage and Character Controls Can Limit Design Freedom
Heritage and neighbourhood character overlays may affect:
- Building materials
- Roof shape
- Façade style
- Front setbacks
- Window placement
- Overall scale
That does not mean townhouse development is impossible. It simply means the design must work harder to satisfy council expectations.
In suburbs across Melbourne’s inner east, we often see councils push for designs that blend with surrounding homes rather than dominate the streetscape.
Flood, Bushfire, and Tree Controls Can Add Real Cost
Protected trees are a common issue in established suburbs.
A large tree near the proposed crossover may force changes to driveway design, parking layout, or stormwater connections. In some cases, an arborist report becomes mandatory before council will even assess the application.
Flood and bushfire overlays can also increase construction costs through additional engineering and compliance requirements.
One client in Melbourne’s south-east discovered their site sat within a flood-prone overlay after purchase. The additional drainage and slab requirements added months to approvals and thousands to the build budget.
Site Size, Shape, and Access Matter More Than Most Buyers Realise
Not all blocks are created equal.
A well-shaped block with good frontage often delivers a cleaner townhouse layout, better natural light, and easier vehicle access.
Frontage Can Shape the Entire Design
Wide frontage blocks are generally easier to develop because they allow:
- Better garage placement
- Cleaner driveway access
- Improved street appeal
- More practical floorplans
Narrow blocks may still work, though compromises usually follow. Long shared driveways, tandem parking, or reduced outdoor space can impact resale value and liveability.
Corner Blocks Often Offer Better Flexibility
Corner sites can be gold for townhouse development.
Separate street frontages often improve privacy, vehicle access, and natural light. Buyers also tend to prefer homes that feel independent rather than squeezed behind another dwelling.
That said, corner blocks still face council controls regarding visibility, fencing, and traffic safety.
Soil, Slope, and Drainage Can Blow Out Your Budget
This is where many projects go pear-shaped.
A block may appear flat during inspection, yet still require expensive retaining walls, drainage systems, or specialised footings.
Why Soil Testing Matters
A soil test identifies ground conditions and footing requirements.
Class M soil is usually manageable. Highly reactive clay or problem sites can significantly increase slab and engineering costs.
We have seen clients shocked by foundation costs after assuming a “normal looking” site would be straightforward. Soil does not care how nice the grass looks on inspection day.
Sloping Blocks Require Extra Planning
Sloping sites often need:
- Retaining walls
- Additional excavation
- Cut and fill works
- Split-level designs
- Complex stormwater drainage
Even a small fall across the site can add major cost.
One Bayside project required nearly $30,000 in retaining and drainage upgrades because the slope affected driveway access and stormwater flow. The owners had no idea during the initial inspection.
Easements and Covenants Can Restrict What You Build
Before committing, review the title carefully.
An easement may give service authorities or neighbouring properties legal access across part of the land. You generally cannot build over these areas without approval.
Easements Can Reduce Your Building Envelope
Common easements include:
- Sewer lines
- Stormwater drainage
- Shared accessways
- Utility services
A rear easement can completely change townhouse placement, driveway design, or landscaping.
This is why surveyors and conveyancers are worth their weight in gold during early due diligence.
Covenants May Affect Design Choices
Newer estates often include covenants controlling:
- Building materials
- Roof pitch
- Fence style
- Minimum dwelling size
- Colours and finishes
These rules help maintain neighbourhood consistency but can limit flexibility.
We have worked with clients who purchased land expecting a modern townhouse design, only to discover covenant restrictions requiring traditional materials and roof forms.
Services and Utility Connections Must Be Checked Early
Utilities are easy to overlook until the invoices arrive.
Townhouse developments need compliant access to:
- Sewer
- Stormwater
- Water
- Electricity
- Gas
- NBN
Sewer and Stormwater Are Critical
Drainage issues can derail projects quickly.
Councils require compliant stormwater discharge points. If the legal point of discharge sits far from the site, additional civil works may be required.
Connection distance also affects cost. Extending services across a long site frontage or under existing infrastructure can become expensive.
NBN and Modern Services Matter to Buyers
Fast internet is no longer optional for many Melbourne families.
Remote work, online learning, and streaming have shifted buyer expectations. Access to NBN and modern utilities can influence long-term property value and rental appeal.
Your Budget Must Include More Than Land and Construction
Townhouse feasibility goes beyond purchase price and building cost.
You also need to allow for soft costs, holding costs, approvals, and contingency.
Soft Costs Buyers Commonly Miss
| Cost Item | Why It Matters |
| Town planning | Council application preparation |
| Land survey | Accurate site measurements |
| Arborist report | Tree protection requirements |
| Soil testing | Foundation design |
| Engineering | Structural compliance |
| Building permits | Mandatory approvals |
| Landscaping | Final presentation |
| Retaining walls | Site stability |
| Finance costs | Loan interest during build |
| Contingency | Unexpected variations |
A realistic contingency buffer matters. Delays, material shortages, and authority requirements can quickly increase costs.
As the saying goes, hope for the best but plan for the wet weather. In Melbourne construction, that advice applies literally and financially.
Build Your Expert Team Before Signing the Contract
Good townhouse projects rely on experienced consultants working together early.
Your team may include:
- Builder
- Town planner
- Land surveyor
- Conveyancer
- Architect or designer
- Arborist
- Engineer
- Finance broker
What an Experienced Builder Can Spot Early
Before design starts, an experienced builder can often identify:
- Access challenges
- Likely retaining wall costs
- Drainage risks
- Build sequencing issues
- Driveway concerns
- Design features that may inflate costs
At MJS Construction Group, we often review sites before buyers commit. Sometimes the advice is positive. Other times we tell clients to walk away.
That conversation can save months of stress and tens of thousands of dollars.
Decide Your Exit Strategy Before Buying the Land
Your development strategy shapes the project from day one.
Are you planning to:
- Sell both townhouses?
- Keep one and sell one?
- Hold both as rental investments?
Each path affects design decisions, finance, finishes, and timelines.
Match the Design to the Buyer
A townhouse in Hampton may require premium finishes and larger living spaces to suit owner-occupiers. A rental-focused project elsewhere may prioritise durability and lower maintenance costs.
Understanding the target market early helps avoid overcapitalising or underdelivering.
Pre-Purchase Townhouse Site Checklist
Before signing a contract, confirm the following:
- Check zoning with council or a town planner
- Review planning overlays
- Order a title search
- Identify easements and covenants
- Confirm block dimensions and frontage
- Assess slope and drainage
- Check utility connections
- Identify protected trees
- Estimate demolition costs
- Prepare a full feasibility budget
- Allow contingency funds
- Speak with an experienced townhouse builder
Buying land to build a townhouse is about more than finding a good suburb or chasing a cheap block. The right site must work legally, financially, and practically.
After more than three decades building homes and townhouse developments across Melbourne, we can say this with confidence: the projects that run smoothly usually start with careful site selection and honest early advice.
If you are considering a townhouse site in Melbourne or Bayside, speak with an experienced builder before you commit. A short conversation upfront can save a world of pain later.
