Can I Build Multiple Residences On My Block?

At delcon, we often have clients ask us if they can build more than one home on their block of land.

The most achievable and popular option is a duplex – one block, two houses.

A duplex is two homes that share a central wall. Dual occupancies are also possible in tandem where one house is behind the other and more often than not share a common driveway.

The strongest appeal to people building duplexes is usually the significant increase in the value of their property, or the potential to make money through selling. Other advantages include being able to care for family right next door, or building an additional home as an investment property and source of income.

The short answer to the common question “Can I build more than one house on my block of land?” is yes, it is possible in many situations. However, there are different laws and specifications for each Local Council which is why you need to either do your research, or engage an experienced builder and development team.

By working with experts such as delcon to design and construct your duplex, you’ll also be working with a team who know your area and the Council development conditions and requirements. Their specialist team will be able to support and guide you on your options and which is most effective for your goals.

Keep in mind that not all blocks are suitable to build a duplex on, so you ideally need a block that is level, isn’t home to too many trees, and has not experienced Council rejection of development applications previously.

However, as a guide, the Council Planners will have at least the following as minimum requirements:

  • A minimum lot size (square metres) to enable subdivision
  • Council will require a minimum amount of private open space for the existing dwelling and the new dwelling
  • There will be minimum setbacks from the boundaries for the privacy of adjacent properties
  • Stormwater disposal
  • Existing services on the site

To ensure accuracy, the final quote from a builder will be provided once all of the Council conditions and the constraints of the existing lot are known.

With regards to the subdivision of a block for a duplex or dual occupancy, this can take place when the buildings are completed and approved by the relevant Council however can also be complete during construction before completion of the dwellings.

When signing on a specialist builder, make sure you’re factoring in all of the elements of a development and not just the price. You should be looking at the quality of their work, their experience with building duplexes, their timelines and do their developments sell. These are critical factors in your decision and could make the difference between a successful and profitable duplex development, or not.

If you’re considering building a duplex on your existing property, or you’re considering buying a property to develop, let’s talk.