Can I Build Two Homes on One Title in NSW?

If you’re wondering whether you can build two homes on one title in NSW, you’re not alone.

This is a common question among homeowners and investors looking to maximise the value of their land.

The answer depends on your land zoning, lot size and local council rules.

Below is a breakdown of what you need to know, along with practical planning advice from our experience helping over 200 NSW projects get council approval.

1. Check Your Zoning and LEP First

Before anything else, you need to understand your zoning under the NSW planning system.

Residential zones such as R2 (Low Density), R3 (Medium Density) and R4 (High Density) allow different types of development.

In most councils, dual occupancies are permitted in R2 zones, but the rules vary.

Your local Environmental Planning Instrument (LEP) will spell out whether two dwellings are allowed on one title.

A town planning consultant can help interpret these documents and give you tailored planning advice.

2. Understand the Difference Between Dual Occupancy and Secondary Dwellings

In NSW planning, building two homes can mean different things.

A dual occupancy involves two separate dwellings on one lot, either attached or detached.

A secondary dwelling, often called a granny flat, is a smaller home built behind or alongside the main one.

The rules, lot size requirements and DA approval process for each type are different.

We often see confusion between these options, which is why getting early town planning advice is critical.

3. Lot Size and Width Matter

Most councils in NSW require a minimum lot size and width for dual occupancy or multiple dwellings.

For example, some require a 500 sqm lot and a 15m frontage for detached dual occupancies.

Even if your land meets these numbers, the site’s slope, shape and access can impact council approval.

We recently helped a client in Blacktown build two freestanding homes on a corner block, navigating strict site coverage rules to get the DA through.

4. Will You Need a DA or Can You Use a CDC?

Whether you apply for a Development Application (DA) or a Complying Development Certificate (CDC) will depend on the type of dual occupancy you’re planning.

In many cases, detached dual occupancies require a DA approval process through council.

However, in some zones, attached dual occupancies may be eligible for a CDC under the Low Rise Housing Diversity Code.

A planning consultant can assess your property to find the most efficient approval pathway.

5. Subdivision Is a Separate Process

Many clients assume that if they can build two dwellings, they can automatically sell them separately.

In reality, building two homes on one title doesn’t mean you can subdivide.

Subdivision needs separate approval and may require infrastructure contributions, easements and services to be established for each dwelling.

We often help clients stage the process, first getting DA approval for both homes, then assisting with the Torrens or strata subdivision later.

6. Councils All Have Their Own Rules

Even though NSW planning rules offer broad guidance, each council applies its own controls.

For instance, what’s permitted in Penrith may be restricted in Parramatta.

That’s why local experience is key.

We’ve worked with over 30 councils across the state, which helps us give planning advice that’s both strategic and realistic.

7. Why Town Planning Sydney Can Help

Getting council approval for two homes on one title isn’t just about ticking boxes.

It takes a well-prepared development application, clear drafting, and a planning consultant who understands what councils are really looking for.

Our in-house drafting team ensures your plans meet technical requirements while aligning with your goals.

Whether you’re building a dual occupancy for family or as an investment, we guide you through every stage of NSW planning.