Home extensions that transform how your family lives.
Ground-floor, first-floor and rear home extensions across Sydney — designed, engineered and built by one team, from DA to handover.
Add the space your family needs without leaving the home you love.
A well-executed home extension is often a better decision than moving. It lets you keep the neighbourhood, the school catchment and the character of your existing home while adding the space, light and functionality your family actually needs. At Vestbor Renovations we design and build home extensions that feel like they were always part of the house — never bolted on.
We work across ground-floor rear extensions, first-floor additions, side-return extensions, sunroom and kitchen-extension combinations, and larger reconfigurations that reshape the entire ground floor. Every project is managed in-house from initial concept through DA, engineering, construction, certification and handover.
The difference in a Vestbor extension is proportion and detail — matching brickwork and mortar tone on heritage terraces, blending rooflines and eave depths on Federation homes, integrating steel beams cleanly into open-plan ceilings, and treating the connection point between old and new with the same care as the new space itself. When we are finished, guests rarely guess where the extension begins.
Because we manage design, engineering, project management and every trade under one roof, you get a single transparent quote, one project manager and one accountable team from the first sketch to the day we hand you the keys.
Why homeowners choose us for home extensions.
Design and build under one roof
Architectural design, structural engineering, DA/CDC and construction are all handled by one team on one contract.
DA and council experience
Sydney councils vary widely. We know local heritage constraints, floor-space ratios and setback rules across the metro area.
Structural expertise
Steel beams, cantilevers, first-floor additions on original brick — engineered and installed correctly the first time.
Sensitive to your existing home
We match brickwork, roof lines, eave depth and interior detail so the extension reads as one home, not two.
Transparent quote and clear schedule
You get a detailed line-item quote and a written schedule before we start on-site.
Livable during construction
Where feasible, we phase the build and set up dust barriers so your family can stay in the home.
A calm, considered process from first visit to handover.
- 01Feasibility and consultation
We visit, discuss what you need, review your title and quickly identify constraints and opportunities.
- 02Concept design
Detailed floor plans, 3D visualisation and a clear scope so you can commit with confidence.
- 03DA/CDC and engineering
We prepare and lodge the application, coordinate the structural engineer, private certifier and any consultants required.
- 04Construction documentation and detailed quote
Full construction drawings, specifications and a line-item detailed contract.
- 05Build and handover
Structural works, roof integration, fit-out, finishes, certification and handover — with weekly updates throughout.
Real, long-term value for your home.
- ◆Add the space your family needs without moving
- ◆Significant uplift in property value
- ◆Better natural light through the whole home
- ◆Modern open-plan living connected to outdoor areas
- ◆Additional bedrooms, ensuites or a master suite upstairs
- ◆Improved thermal performance and energy efficiency
- ◆A home tailored to how your family actually lives
- ◆Retain your suburb, school catchment and neighbours
Premium materials, specified with care.
Matched brickwork and cladding
We source matching or complementary brick, render and cladding — critical to making an extension read as original.
Structural steel
Engineered steel beams and posts sized by a structural engineer and installed by our carpentry team.
Insulation and glazing
R-value-rated insulation to walls, roof and floor, plus double-glazed or performance-glazed windows for comfort and efficiency.
Roofing
Concrete tile, terracotta, Colorbond and skillion roof systems installed to match the existing home.
Flooring
Engineered timber, natural stone, large-format porcelain or polished concrete — chosen for flow with existing floors.
Joinery and fit-out
Custom kitchens, wardrobes, bathrooms and built-in storage all built in-house to match the finish level of the new space.
Popular design directions.
Rear kitchen-and-living extension
Open-plan kitchen, dining and living connected to a north-facing terrace and garden.
First-floor master suite
Add a full master bedroom, walk-in robe and ensuite above the existing footprint.
Side-return extension
Reclaim the wasted side alley of a terrace to widen the kitchen and living area.
Second-storey addition
Full first-floor addition adding two to three bedrooms and a second bathroom.
Granny flat / secondary dwelling
Detached or attached secondary dwelling for extended family, teenagers or rental income.
Outdoor room extension
Enclosed alfresco, sunroom or fully insulated outdoor kitchen that extends living into the garden year-round.
What to expect during construction.
- —Free in-home consultation and feasibility discussion
- —Concept design and feasibility summary after our review
- —DA/CDC preparation and lodgement managed on your behalf
- —Structural engineering, certification and inspections coordinated
- —Site protection, safety fencing and dust control throughout
- —Weekly progress updates from your project manager
- —Written schedule agreed before work begins
- —Full handover with warranties, certification and as-builts
Common mistakes homeowners make.
Starting construction without full documentation
Extensions that begin on partial drawings almost always run over budget. Complete documentation is the single biggest cost-control tool.
Underestimating the connection
How the extension meets the existing house — floor levels, ceiling lines, brick coursing — is what separates a professional extension from an obvious add-on.
Ignoring orientation and light
A large extension that faces the wrong way, or blocks light from the original home, can make your house feel darker than before.
Cheaping out on insulation and glazing
The energy performance of an extension is decided in the early stages of framing. Get it right up-front — retrofitting later is far harder to correct.
Not planning for services
New plumbing, sewer runs, gas, electrical loads and hot water demand all need to be reviewed. Undersized existing services cause frustrating problems.
Choosing a builder without design capability
Extensions live or die on design decisions. A design-and-build team catches issues that pure-build contractors miss until it is too late.
Frequently asked questions.
Still have questions? Call us on 0405 683 363 or book a free consultation.
Do I need a Development Application (DA)?+
It depends on your local council rules, zoning, heritage status and the size of the extension. Many smaller extensions can be approved as a Complying Development Certificate (CDC) which is faster. We assess this early and advise the best pathway.
Can we live in the house during the extension?+
In most cases, yes — particularly for rear ground-floor extensions where we can keep the existing home sealed off. First-floor additions and larger reconfigurations sometimes require a short-term move-out for the noisiest phase. We plan this with you upfront.
Do you handle the design, or do I need my own architect?+
We handle full design in-house for the majority of our clients. If you already have an architect, we love collaborating and can build to their documentation.
Will my extension match the rest of my home?+
This is one of the things we obsess over. We match or complement brickwork, roof profile, eave detail, window proportions and interior finishes so the extension reads as an original part of the home.
Can you add a second storey instead of extending out?+
Yes. A second-storey addition is often the best way to add space when the ground floor is already at its setback limit. We assess structural capacity, stair location and roof design to make the new level feel like it has always been there.
What approvals are involved in a home extension?+
Extensions typically require either a Complying Development Certificate (CDC) or a Development Application (DA) through council, plus a structural engineering certificate, BASIX compliance and sometimes heritage approval. We manage all of these on your behalf.
Do you provide detailed contracts?+
Yes. Once construction documentation is complete, we provide a detailed line-item contract with a clear schedule, inclusions and exclusions. Cost-plus and open-ended contracts are rarely in a homeowner's interest and we do not recommend them.
How do I get started?+
Book a free in-home consultation. We will visit, discuss your goals, review your title and follow up with a feasibility summary and next steps.
Other renovation services.
Ready to begin your renovation?
Book a free in-home consultation. Our team will visit, listen and design something extraordinary.