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Perth triplex home designs by Summit Homes

Triplex

Triple the potential of your block with a triplex development.

Triplex

Triplex development made easy

Considering subdividing your block into three? Summit Developments is here to make your next investment venture smooth, affordable and stress-free.

Our team has over 60 years’ of experience in property development, making them Perth’s most experience property development team, and WA’s leading triplex developers.

A simple obligation free consultation is all it takes to get started on your development journey.

Please note elevation images are for illustrative purposes only and are not necessarily what your individual end design might reflect.

Book a free consultation

Triple the potential of your block with a triplex development.

Similarly to developing a duplex, if your block is zoned R20 to R60, a triplex development might be the perfect choice. Single or two storey units, or a combination, are popular choices and provide profitable options.

We offer an array of plans and designs to suit your development. Our expert development team can help guide you in creating the ideal triplex for property investment, to reside in or to sell.

We offer a free triplex development site assessment, accurate fixed costs and tailored developments, to assure you receive the best value for your triplex development. To learn more, book an appointment with one of our Development Consultants today.

Meet the developments team

development-pattern

Subdividing your property for triplex development

Looking to subdivide your property for a triplex development but find the process daunting? Let the Summit developments team help. Our property development team has over 60 years’ experience collectively. They can assist with everything from initial feasibility studies through to connecting your site to utilities.

We’ll work with you to develop a triplex subdivision plan based on your goals, then coordinate the submission of your application to WAPC for separate titles. With a proven track record of success, we can help you make the most of your investment.

Everything you need to know about subdividing

The summit approach to triplex development

The property development process can be a complex journey, but at Summit Developments, we aim to simplify it for you. If you’re considering a triplex development in Perth, we can guide you through every stage of the process from feasibility and approvals to key handover.

Our team of experts will work with you to create a vision for your project and bring it to life, ensuring that it meets your budget, timeline, and desired outcome. We’ll be with you every step of the way. Check out our page on the development process to learn more about how we can help you achieve your property development goals.

The property development process

Case Studies

The Summit Developments Team share experience in excess of 60 years and have worked on every kind of development project you can think of. Benefit from their portfolio of work and read case studies of projects which Summit has undertaken.

Rivervale

Summit Developments: Rivervale | Townhouses

Project Overview Zoning: R20 / 40 Lot Area: 1,042 sqm Housing Type: Three larger townhouses This project was designed as...
Hilbert

Summit Developments: Hilbert | Fully Framed Townhouses

Development Type: Townhouses – Grouped Dwellings Lot Area: 860sqm Construction Timeframe: 8 months Build Type: Fully Framed Construction Project Overview Located in the south-eastern suburb of Hilbert,...
Dianella

Summit Developments: Dianella | Single-Story Duplex Development

Development Type: Single-Storey Duplex Zoning: R30 Lot Area: 681m² Project Background A repeat client of Senior Development Consultant Ewan McConnell...
West Leederville

Summit Developments: West Perth | Townhouses

Development Type: Townhouses Grouped Dwellings Zoning: Residential Scheme plan LPS2 Lot Area: 2,173sqm   Project Overview Led by Senior Development Consultant Adrian...
Bayswater

Summit Developments: Bayswater | Single Storey Strata

Development Type: Residential Subdivision Zoning: R30 Lot Area: 4,136sqm Housing Type: Single Storey Strata Project Overview Led by Senior Development...
Nedlands

Summit Developments: Nedlands | Townhouses

Development Type: Medium-scale, infill-built form development Zoning: R60 Lot Area: circa 1,800m2 Housing Type: Townhouses Project Overview Summit Developments partnered...
Margaret River

Summit Developments: Margaret River | Units & Grouped Housing

Development Type: Units Zoning: R40 and R30/R40 Lot Area: 2366m2 and 1276m2 Housing Type: Single-storey strata Development Project Overview Summit...
Bicton

Summit Developments | Bicton: Rear Strata

Rear Strata Development in Bicton by Summit Developments: Case Study Development Type: Rear Strata Zoning: R20 Lot Area: 479 m2 Housing Type:...
Warwick

Triplex in Warwick

Development Type: Grouped Dwellings – Triplex Zoning: R20/ R40 Lot Area: 714m2 Housing Type: Three single storey grouped dwellings This...
Coogee

Grouped housing in Coogee

Development Type: Grouped Dwellings Zoning: R30 Lot Area: 1368 m2 Housing Type: Four single-storey grouped dwellings Timing can be everything when it comes...
Belmont

Duplex in Belmont

Development Type: Grouped Dwellings Zoning: R20/40 Lot Area: 797m2 Housing Type: Two single storey grouped dwellings (duplex) Some development sites are lucky enough to...
Kallaroo

Investment dream in Kallaroo

Clients: Nicola and Paul  Development Type: Duplex Zoning: R20 / R40 Lot Area: 690m2 Housing Type: Subdivided two green title houses. A single storey...

Developments journal

Check out our helpful tips to guide you through your development journey.

Developments

WA’s R-Codes Reforms: What They Mean for Development Potential

WA’s Planning and Lands Minister John Carey has announced sweeping proposed reforms to the Residential Design Codes (R-Codes) — the…

BuildingDevelopmentsFeatureNew HomesRenovations

WINNER: 2025 HIA Professional Major Builder

Summit Homes Group is proud to have been named the 2025 HIA Professional Major Builder for Western Australia, marking our sixth consecutive year receiving this prestigious industry award.

Developments

Understanding WA Residential Design Codes (R-Codes): A Cheat Sheet for Developers in Perth

What are R-Codes in Western Australia? The Residential Design Codes (R-Codes) are a set of planning and design standards used…

Developments

Perth Property Development in 2026: Strategy Now Defines Success

Perth’s property market in 2026 is no longer driven by momentum alone. It is shaped by structural supply constraints, sustained…

Developments

Why Fully Framed Construction Is the Future in Perth — and How Summit Developments Is Leading the Way

At Summit Developments, we’re dedicated to delivering innovative, high-quality housing that matches Perth’s changing needs. Our recent completion of 7…

Developments

Building Wealth with Your Block of Land You’ve Owned for 10+ Years

If you’ve held onto a block of land in Perth for 10 years or more, there’s a good chance you’re…

Developments

What the Proposed LPS 24 Means for Your Property: Proposed Zoning and Density Changes in the City of Gosnells

The City of Gosnells Draft Local Planning Strategy (LPS 24) outlines how land across the city could be used and developed…

BuildingDevelopmentsFeatureNew HomesRenovations

WINNER: 2024 MBA WA Project Builder of the Year

Summit Homes Group has received the Project Builder of the Year Award from the MBA in Western Australia for the third time! A testament to the team’s dedication to excellence in the home building industry.

Request an appointment

Speak to someone about your plans. Whether you’re considering building, renovating or developing our experts can guide or answer any questions you might have.

08 9317 0141

Head Office & Style Studio

242 Leach Hwy, Myaree WA 6154
Monday – Friday: 8am – 5pm
Saturday: 9am – 2pm
Sunday: Closed

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