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Property Development WA

Triplex development


Triplex Development

Triplex Developments can involve more planning and design challenges. This type of development is most commonly found in medium to high-density zones and therefore clever design and use of space can make all the difference in creating an exceptional triplex project.

At Developments by Impressions we pride ourselves on our town planners’ and designers’ ability to work hand in hand, actively producing the best possible design outcome for your project – and ultimately your potential success and profit returns. Our town planners are actively involved from concept and approvals, throughout the entire process. This ensures that we provide the most streamlined and efficient project course as can be achieved.

Whilst corner lots can offer a great development outcome, triplex developments are most traditionally designed in a battle-axe configuration, however each site will have its own opportunities and constraints that we will work to.
Let Developments by Impressions assess your property and advise on your fullest development potential.


Triplex, Bedford

Challenge Presented

  • Retaining existing house, located in an unideal position
  • Demolish part of the existing house
  • R25 zoning


This development involved retaining the front existing house, which was not in an ideal position on the block. A large room at the rear of the existing house was earmarked to be demolished. However, with expert planning knowledge, the new boundaries were able to be creatively designed to keep the existing house untouched. The overall subdivision design created an excellent outcome that addressed the planning needs of the front house, minimising demolition works whilst still maximising the land area and building footprints for the new homes plus a driveway down the side of the block. We were able to build two 3 bedroom, 2 bathroom units each with a spacious open plan living area and a generous lot size allocated to each home to ensure a comfortable lifestyle. The designs feature elegant finishes including stone benchtops to the kitchens and bathrooms, European Smeg appliances and mixer tapware throughout.


Triplex, Beckenham

Challenge Presented

  • Busy Road – High volume of traffic
  • Problematic soil conditions – high clay content – complicated Stormwater management required
  • Fairly tight site dimensions and area – clever design solutions required for housing
  • R35 zoning

The owner came to us with a strict brief – design 3 units on the property to maximise building size and minimise development costs. Being in Beckenham, we knew from experience that the City of Gosnells have strict requirements in terms of design, technical compliance due to poor soil quality in the area as well as Public Open Space contributions. Our recommendation to undertake a survey strata subdivision rather than a built strata effectively saved the developer significant costs in public open space contributions. Clever design ensured that all planning regulations were complied with whilst maximising building size and containing all required stormwater. Our expert procedures and experience involving all facets of development has ensured the smooth and easy development of this site and we have delivered another quality development to a very happy owner.


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