
Servicing the City of Hobsons Bay
House extensions across Hobsons Bay, done by one builder.
Rear extensions and second-storey additions across Williamstown, Newport, Altona, Spotswood and Seaholme — heritage-aware planning, coastal-appropriate detailing, one fixed-price contract.
Hobsons Bay extensions
Same council, different rulebook per suburb.
An extension in Williamstown answers a very different question to one in Altona. Williamstown reads first through the heritage overlay and streetscape. Altona and Seaholme read through coastal exposure, post-war brick veneer construction and slab-on-ground floor plans that behave nothing like a Victorian subfloor. Newport and Spotswood sit somewhere between the two.
RenoWorx runs house extensions across all of it with the same municipal team and the same building surveyors. That means a planning approach that matches your specific suburb, not a generic Hobsons Bay template — and a build program that survives contact with actual council review.
Municipal coverage
Williamstown, Newport, Altona, Altona North, Spotswood and Seaholme.
Heritage & coastal experience
Overlay responses in Williamstown, coastal-grade envelope in Altona.
Council-fluent office
Planning, building and asset-protection permits lodged with Hobsons Bay in-house.
What we deliver
Tailored to Hobsons Bay.
Suburb-specific feasibility
Site read that accounts for the actual overlay, exposure and stock in your suburb.
Planning submission
Full application including any heritage response, shadow diagrams and streetscape drawings.
Building permit & DBI
Building permit lodged, Domestic Building Insurance issued in your name before demolition.
Structural extension
Steel portals, first-floor framing, roof rework and tie-ins to original construction — whatever the stock.
Envelope & services
Cladding, flashing, glazing, plumbing, electrical and gas coordinated to a real program.
Fitout & handover
Trades, joinery, finishes, defect walkthrough and workmanship warranty.

Why RenoWorx
Why Hobsons Bay homeowners choose us.
Three decades earning the trust of Melbourne homeowners — through the quality of our work, and the way we work.
- 01
Local knowledge
We know the housing stock, council requirements and trades in your area.
- 02
Transparent pricing
Detailed scope and a fixed quote upfront — no vague allowances or surprises.
- 03
Respectful sites
We protect your home, communicate weekly, and leave each day tidy.
- 04
Built to last
Quality fixtures, considered detailing — workmanship warranty included.
Ready when you are
Plan your Hobsons Bay extension
Book a site visit. We'll read the overlay and the exposure, sketch what's buildable and come back with a fixed-price contract.



