About Us | Perth Granny Flat Specialists — 15 Years Building in Perth

Our Story

Built on Trust, Driven by Results

Perth Granny Flat Specialists was founded in 2010 by Mark and Lisa Thompson, two builders who saw Perth homeowners being let down by companies that overpromised and underdelivered.

Their vision was simple: build beautiful, high-quality secondary dwellings at fair prices, with complete transparency and no hidden costs. Today that vision guides every project we take on.

We've grown to a team of 28 in-house specialists — designers, town planners, project managers, and licensed tradespeople — all working together to deliver Perth's best granny flat experience.

2010

Founded

500+

Projects Built

28

Team Members

What We Stand For

Our Core Values

These aren't just words on a wall — they're the principles that guide every decision we make on every project.

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Transparency

Fixed-price contracts with zero hidden costs. You see every line item before you sign — no surprises at completion.

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Quality Craftsmanship

We use premium materials and employ only the best tradespeople. Every build meets or exceeds Australian Standards.

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Clear Communication

Weekly progress updates, always-available project managers, and a client portal to track your build in real time.

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Excellence

HIA award winners and 4.9 Google rating. We set the benchmark for secondary dwelling construction in Perth.

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Sustainability

6-star NatHERS energy ratings, solar-ready designs, and water-efficient fixtures across every build.

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Community

We've helped create affordable rental housing across Perth suburbs and support local trades and suppliers.

The People Behind Your Build

Meet Our Team

Experienced, qualified, and genuinely passionate about delivering exceptional granny flat experiences.

Mark Thompson

Co-Founder & Managing Director

Licensed builder for 22 years. Mark oversees every project and ensures our quality and safety standards are met without exception.

Lisa Thompson

Co-Founder & Design Director

Interior designer and architectural drafter with 18 years' experience. Lisa leads our design team and creates spaces people love to live in.

James Okafor

Town Planning Manager

Registered town planner (RTPI) with deep expertise in Perth R-Codes and council approval pathways. 95% of his applications are approved first time.

Sarah Chen

Senior Project Manager

Sarah has delivered 140+ projects across Perth, keeping every one on time and within budget. Clients consistently praise her responsiveness.

Tom Bakker

Construction Supervisor

A licensed builder with 14 years on the tools and 6 years supervising our builds. Tom is the eyes and ears on every site, every day.

Priya Sharma

Client Relations Manager

Priya is your first point of contact and ensures every client's journey is smooth, informed, and enjoyable from first call to handover.

Credentials & Awards

Fully Licensed, Award-Winning

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HIA Award Winner

Best Residential Addition 2023 & 2021

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Registered Builder

BSCL Registration BC#12345

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Fully Insured

$20M Public Liability + Home Indemnity

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4.9 Google Rating

312 verified client reviews

Perth's Most Trusted Granny Flat Team