South East Queensland
Granny Flat Builders
Designed for Queensland. Built to Last.
Premium steel-frame granny flats with certified designs, fixed-price contracts and complete project management.
Why Choose
DC House Granny Flats
A Gold Coast based granny flat builder trusted by homeowners across Queensland for quality, durability and expertise.
Inside a Finished Granny Flat with Casey.
Step inside a completed DC House granny flat in Palm Beach on the Gold Coast and see how a smart backyard build can create a practical, comfortable living space that still feels connected to the main property.
Whether you are planning extra room for family, considering a private retreat, or looking at ways to add long-term value to your property, a well-planned granny flat can make a big difference. In this video, Casey from DC House shares a closer look at the finished space and the thought that goes into creating a home that feels functional, modern and easy to live in.

Built with 100% Steel Frames for Strength and Durability.
Every DC House Granny Flat uses precision-engineered steel frames – termite-resistant, durable, and built to last in Queensland conditions.
Featured Granny Flat Floor Plans
Granny Flat Process


PLANNING & DESIGN
Concept, consultation, and initial plans.

APPROVALS & PERMITS
Local council and certification.

CONSTRUCTION
Site prep, framing (steel frames), fit-out.

HANDOVER & COMPLETION
Final inspection and delivery.


Granny Flat Builders
Your Can Trust
If you’re looking to build your dream granny flat, DC House offers a clear, start-to-finish process with no guesswork.
- Submit your enquiry
- We review your site and requirements
- You receive clear next steps and pricing guidance
Our Happy Customer Say’s
Frequently Asked Questions
Will a granny flat fit on my property?
Most properties across the Gold Coast, Logan, Scenic Rim and Ipswich can accommodate a compliant granny flat. Using our siting software, we scale our designs to your block and confirm access, slope, and services during a site visit.
Do I need Building Approval (BA) to build a granny flat?
Yes. All secondary dwellings in Queensland require Building Approval. Our team manages the entire approval process with our certifiers and town planners (if required)— whether Gold Coast, Logan, Scenic Rim or Ipswich — ensuring your granny flat meets all planning and building requirements.
How long does it take to build a granny flat in South East Queensland?
Once approvals are complete, most of our granny flats are built in around 16–20 weeks. Timelines depend on site conditions and selections, but we provide a clear schedule before construction begins.
What’s included in your fixed-price granny flat builds?
Our builds include design, building approval, site works, and full construction. Each flat features a durable steel frame, hybrid flooring, 2550mm ceilings, 300mm eaves, and concrete piers up to 1200mm deep — all designed for Queensland conditions.
Can I personalise my granny flat design or finishes?
Yes. While our pre-engineered designs are efficient, you can choose colours, materials, and finishes to suit your style. We’ll help tailor your granny flat to your property and lifestyle — whether you’re building in Gold Coast, Logan, Scenic Rim or Ipswich.
How can I finance my granny flat build?
Most customers fund their granny flat through a standard construction loan, equity release, redraw facility, or cash savings. If you have home equity, many banks allow you to use it without refinancing your main loan. We provide fixed-price quotes and documentation to support your application.
What size granny flat can I build on my block?
Maximum sizes depend on your block and council zoning. Our designs range from 18–100m² for one- or two-bedroom flats. We’ll help select a design that meets regulations while making the most of your space.
Do you handle site works for sloped or difficult blocks?
Yes. Our steel-frame builds on concrete piers can accommodate moderate slopes and uneven terrain. Standard site works are included in our fixed-price quote, and we evaluate your site during a visit to ensure suitability.
Can I rent out my granny flat once it’s built?
Yes. Provided the flat meets local building codes and council requirements, it can be rented out. Many homeowners use their secondary dwelling to generate rental income or provide a private space for family members.
What’s the difference between a granny flat and a tiny home in Queensland?
A granny flat is a fully compliant, permanent secondary dwelling built on your property with all services connected. Tiny homes are smaller, often mobile, and may not meet building standards. Our designs are engineered for long-term use and council approval.
Do you provide a fixed-price building contract for your granny flat builds?
Yes. All our granny flats clients are presented with a fixed-price Master Builders building contract, including design, building approvals, site works, and construction. This ensures no unexpected costs, giving you certainty for budget and timeline across the Gold Coast, Logan, Scenic Rim, or Ipswich.
Find Your Ideal Granny Flat in Under 60 Seconds!
Take our quick quiz to discover the perfect design for your lifestyle.



