Inner West Home Builders Sydney
Sydney Inner West Builders - Renovations, Extensions & New Homes
Downtown Building is Sydney's trusted builders in the Inner West, specializing in premium home extensions, renovations, and knockdown rebuilds throughout the area. As experienced builders in the Inner West, we service suburbs like Ashfield, Burwood, Leichhardt, and Marrickville, combining in-house Design & Construct expertise with transparent fixed-price quoting. Whether you’re considering home extensions like a second-storey addition, a granny flat, or a complete home renovation, our Inner West builders ensure quality construction with complete cost certainty.
Planning & Preparation - Getting your project ready
As trusted builders in the Inner West, we offer a Fixed-Price Guarantee for all your projects. Our expert team specializes in guiding you through the planning, approvals, and budgeting processes to ensure your custom home, renovations, or home extensions are completed on time. We manage council applications and drawing approvals, collaborating with professionals such as architects, engineers, and private certifiers when necessary, and we organize Construction Certificates to ensure your project starts smoothly. With our skilled builders in the Inner West handling these essential steps, you can be confident that your project is set up correctly from day one.
Build & Deliver - Managing your build on-site
Downtown Building manages your project from start to finish once the build begins. Our Inner West team coordinates all trades and keeps you informed at every stage. Our in-house Design & Construct team handles any on-site adjustments quickly and accurately. We schedule and manage all subcontractors to maintain efficiency and meet timelines. Ongoing inspections ensure workmanship meets the highest standards throughout. Regular progress reports and site meetings keep you confident in the process. Your project is delivered on time, on budget, and to your exact specifications.
Completion & Handover - Your finished project
We finish strong, ensuring you receive a move-in ready home. As experienced builders in the Inner West, our services include: - Thorough site cleanup - Compliance checks throughout construction - Coordinating the Occupational Certificate to guarantee that your home extensions or renovations meet all legal requirements - Detailed handover with guidance on your new or renovated space. With Downtown Building, every project, from initial design through to final handover, is completed to the highest standard.
Home Extensions Inner West
Expert ground floor, second storey & rear extensions. Fixed-price quotes.
Downtown Building has delivered home extensions across Sydney's Inner West since 1998, working in Ashfield, Marrickville, Leichhardt, Summer Hill, and surrounding suburbs. We specialise in ground floor extensions, second storey additions, and rear extensions, priced on a fixed-price basis agreed before work starts.
Types of Home Extensions We Build:
- Ground Floor Extensions - Expand your living space into the backyard, ideal for enlarging kitchens, dining areas, or creating open-plan living. Typical cost: $3,000–$5,000/m²
- Second Storey Additions - Add bedrooms, bathrooms, or a master suite without reducing yard space. Typical cost: $4,000–$6,000/m²
- Rear Extensions - Update kitchens and living areas while maintaining street presence.
- Side Extensions - Add width to narrow blocks, hallways, or bedrooms within boundary setbacks.Every extension includes Design & Construct project management, council approval handling, and a fixed-price quote with no hidden costs. We manage BASIX and NatHERS compliance, coordinate with Sydney Water and local utilities, and build to current NCC standards.
Book a free consultation to get a fixed-price quote for your Inner West home extension.
A new Out-building to include bathroom, laundry and garden shed with a beautiful Alfresco area wiit
Renovations Inner West
Complete home, kitchen & bathroom renovations. Modern living, transparent fixed price.
Downtown Building renovates homes across Sydney's Inner West, transforming kitchens, bathrooms, and full living areas in Ashfield, Marrickville, Leichhardt, Summer Hill, and surrounding suburbs. Since 1998, we've completed renovations focused on practical, modern layouts for the way you actually live.
Types of Renovations We Build:
- Kitchen Renovations - Open-plan layouts, new benchtops, cabinetry, and appliances.
- Bathroom Renovations - Full strip-outs and rebuilds, including waterproofing and tiling, to a fixed timeline.
- Whole-Home Renovations - Reconfiguring floor plans and opening up living spaces without a full rebuild.
- Internal Reconfigurations - Removing walls, adding ensuites, or converting unused space into functional rooms.
Every renovation includes Design & Construct project management, council approval handling where required, and a fixed-price quote agreed up front. We manage BASIX and NatHERS compliance and build to current NCC standards.
Book a free consultation to get a fixed-price quote for your Inner West renovation.
Knockdown Rebuild Inner West
Build your dream home on your block. Full management from demolition to handover. Fixed-price quote
Downtown Building manages knockdown rebuilds from start to finish across Sydney's Inner West, delivering new homes in Ashfield, Marrickville, Leichhardt, Summer Hill, and surrounding suburbs. Since 1998, we've overseen rebuild projects with one team accountable across demolition, design, and construction.
What's Included:
- Demolition & Site Preparation - Full demolition management and coordination of approvals and utility disconnections.
- Design & Construct - In-house design tailored to your block, from single to double-storey builds.
- Council Approvals - Development Applications, Complying Development Certificates, and required certification.
- New Home Construction - Trade coordination and quality oversight to current NCC, BASIX, and NatHERS standards.
Every knockdown rebuild is quoted at a fixed price, backed by our statutory 6-year structural guarantee.
Book a free consultation to get a fixed-price quote for your Inner West knockdown rebuild.
7 step Inner West Design & Construct | Seamless Renovations
Consultation - We begin with a free consultation to clearly define your project vision, budget parameters, and scope for your Inner West build.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Consultation - We begin with a free consultation to clearly define your project vision, budget parameters, and scope for your Inner West build.
Site Check - A hands-on site inspection is mandatory to uncover potential heritage constraints or structural risks upfront,
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Consultation - We begin with a free consultation to clearly define your project vision, budget parameters, and scope for your Inner West build.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Pricing - We provide an itemised, fixed-price quote with zero hidden Provisional Sums guaranteed, giving you complete cost certainty before moving forward.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Approvals - Our Design & Construct team manages all necessary Development Applications (DA) and Complying Development Certificates (CDC) with local Inner West councils for smooth, compliant progress.
Contracts - Review and sign our contract that clearly outlines payment milestones, warranty terms, and project timelines for mutual transparency.
Handover - A detailed walk-through ensures your satisfaction before final payment, followed by the issuance of all compliance certificates and your statutory 6-year structural guarantee for peace of mind.
Build - Experienced custom home builders deliver on-site, managed by expert project managers who ensure the highest Australian Standards and strict adherence to schedule.
Build - Experienced custom home builders deliver on-site, managed by expert project managers who ensure the highest Australian Standards and strict adherence to schedule.
Handover - A detailed walk-through ensures your satisfaction before final payment, followed by the issuance of all compliance certificates and your statutory 6-year structural guarantee for peace of mind.
Build - Experienced custom home builders deliver on-site, managed by expert project managers who ensure the highest Australian Standards and strict adherence to schedule.
Handover - A detailed walk-through ensures your satisfaction before final payment, followed by the issuance of all compliance certificates and your statutory 6-year structural guarantee for peace of mind.
Handover - A detailed walk-through ensures your satisfaction before final payment, followed by the issuance of all compliance certificates and your statutory 6-year structural guarantee for peace of mind.
Handover - A detailed walk-through ensures your satisfaction before final payment, followed by the issuance of all compliance certificates and your statutory 6-year structural guarantee for peace of mind.
The Downtown Building Transparency Guarantee
What we deliver, start to finish
What we deliver, start to finish
What we deliver, start to finish
We are your trusted builders in the Inner West, specializing in home extensions and renovations, as well as being experts in Sydney Design & Construct. By merging our in-house design expertise with reliable local engineers, we manage your home extensions, additions, or custom home projects through a single, accountable, and transparent process. This approach ensures fewer handovers, minimized delays, and a clear point of responsibility from concept to handover.
Real questions. Real answers
What we deliver, start to finish
What we deliver, start to finish
Our commitment to Real Answers means we proactively address the specific concerns of Inner West homeowners, particularly regarding builders in the Inner West. We identify common issues early, such as council requirements or site constraints, ensuring our team delivers practical and transparent plans for home extensions and renovations.
Pricing you can trust
What we deliver, start to finish
Pricing you can trust
At our company, we prioritize transparent renovation quoting as part of our policy. As one of the trusted builders in the Inner West, we offer a commitment to no bait and no surprises. When it comes to home extensions in the Inner West, typical costs range from A$3,000–A$5,000/m² for ground floor extensions and A$4,000–A$6,000/m² for second-storey additions. These figures are merely guide ranges. After a thorough site inspection, we provide a clear, itemised quote that eliminates hidden Provisional Sums, allowing you to plan your renovations confidently while maintaining an honest budget.
Project Management
Project Management
Pricing you can trust
Expert Project Management: Certainty on Site. Our experienced builders in the Inner West ensure that every home extension and renovation is completed on time and within budget. We utilize strict scheduling and communication protocols to manage all trades and compliance checks, guaranteeing a smooth workflow so you don't have to worry about a thing.
Why this matters
Project Management
Why this matters
Why Choose Downtown? As premier builders in the Inner West, we provide Integrated Design & Construct services, Honest Quoting, and a Proven Track Record, ensuring complete cost certainty for your home extensions and renovations. Schedule a free consultation today, and we will walk you through a realistic plan without any sales pressure.