
Your Partner in Modern Home Building
Home Extensions & Additions in Fairfield & Western Sydney
Home Extensions & Additions | Fairfield Builder
Need more space without moving? Buildana designs and delivers smart extensions and additions across Fairfield, Liverpool, Parramatta and surrounds — from second-storey additions to rear/side extensions and garage conversions. We manage design, approvals, and construction end-to-end, keeping your home liveable and your project on budget.

From Consultation to Completion
At Buildana, we follow a clear, proven process that ensures your home extension or addition in Fairfield and Western Sydney is delivered smoothly, on time and on budget. From the first site visit to the final handover, our team manages every step so you can enjoy the journey with confidence.
Step 1: Consultation, Design & Cost Planning
Consultation & Site Measure
​
We begin with a detailed consultation to understand your goals, budget and timeline. Our team reviews site access, existing services, roof form and structural conditions to plan your extension or addition the right way.
​
Concept Design & Transparent Cost Plan
​
We prepare concept floor plans and elevations tailored to your block. Alongside this, we provide a clear cost plan so you know exactly what your Fairfield extension or addition will involve before committing to construction.
Step 2: Approvals, Engineering & Contracts
Approvals & Compliance
​
Whether through a CDC (Complying Development Certificate) or a DA (Development Application), we handle all documentation and liaise with council or certifiers to secure approvals.
​
Engineering & Inclusions
​
We coordinate structural engineering, energy efficiency reports and site safety requirements. Once confirmed, we lock in your selections, inclusions, allowances and programme. All contracts are backed by insurance (HBCF where required) for peace of mind.
Step 3: Construction, Handover & Warranty
Construction & Quality Control
​
Our builders deliver your extension with staged works to keep parts of the home liveable where possible. Expect tidy sites, weekly progress updates, and strict quality checks throughout.
​
Practical Completion & Warranty
​
At handover, you’ll receive certifications, warranty documents and a detailed pack. With Buildana, you can be confident your home addition or extension in Western Sydney is built to last — and backed by our ongoing support.
Design Options That Add Real Value
When planning a home extension in Fairfield or Western Sydney, it’s important to choose spaces that add comfort now and long-term resale value. At Buildana, we design and build tailored additions that blend seamlessly with your existing home and maximise your block’s potential.
A well-planned home extension in Fairfield or Western Sydney should improve daily living and boost long-term property value. At Buildana, we focus on three high-impact extension types that local families ask for most:
Second Storey Additions & Extra Rooms
Perfect for growing families in Fairfield, Liverpool and Parramatta, a second-storey addition can add multiple bedrooms, a parents’ retreat or extra bathrooms without losing backyard space. Even single-level additions — such as a new bedroom or ensuite — increase liveability and resale appeal.
Open-Plan Living, Kitchens & Outdoor Spaces
Many homes in Smithfield, Bossley Park and Cabramatta benefit from ground-floor extensions that open up kitchens and family rooms. By adding stacker doors, alfresco areas or outdoor kitchens, you create seamless indoor–outdoor living tailored to the Western Sydney lifestyle.
Garage Conversions & Flexible Spaces
Homeowners across Wetherill Park, Bonnyrigg and Merrylands are converting garages into valuable living areas — from home offices and gyms to studios or guest suites. This is a cost-effective way to maximise existing space while meeting modern family needs.
Indicative Timelines & Budgets
Every extension project is unique, but at Buildana we provide transparent guidance so you know what to expect before building. Below are common home extension options in Fairfield and Western Sydney with typical timeframes and budget ranges.

Small-Scale Extensions & Conversions
Examples: garage conversions, rumpus rooms, small bedroom/bathroom additions
​
Timeline: approx. 3–6 weeks
​
Budget guide: from $40,000+ depending on finishes and compliance requirements
Ideal for families in Villawood, Yennora and Guildford looking for fast, functional upgrades.

Medium Extensions – Rear & Side Additions
Examples: open-plan living extensions, new kitchens, alfresco additions
Timeline: approx. 8–16 weeks
​
Budget guide: from $80,000–$150,000+
Popular in Smithfield, Bossley Park and Cabramatta where larger blocks allow more living space.

Large Extensions – Second Storey Additions
Examples: parents’ retreats, multiple bedrooms, extra bathrooms, upper living areas
​
Timeline: approx. 12–20+ weeks
​
Budget guide: from $180,000–$300,000+
​
Favoured in Fairfield, Liverpool and Parramatta where families need extra space without losing backyard area.
Why Choose Buildana for Your Extension?
Local expertise: Fairfield-based team that understands Western Sydney blocks, services and council controls.
​
End-to-end delivery: Design, approvals (CDC/DA), engineering, build, finishes. One team, one contract.
​
Structural first: We engineer everything around your existing slab, roof and services to protect the home you love.
​
Clean, staged works: Dust control, site safety, and staged handovers to minimise disruption.
​
Transparent pricing: Detailed scope, allowances, and milestone payments — no surprises.
​
Find out more about our Projects!
​