Home Renovations · Castle Hill
Home renovations in Castle Hill, done properly.
Complete home renovations for Castle Hill homeowners by a licensed builder. A typical full transformation runs $180,000 to $450,000, itemised quote, honest programme, one builder from concept to handover.
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Complete transformations
More than cosmetic updates.
A home renovation is an opportunity to completely redefine how you live. Strava Group delivers high end home renovations across Castle Hill and the Hills District, transforming established homes into refined, contemporary residences, managed as complete projects from concept through to completion.
Rather than renovating room by room, we approach each Castle Hill project as a unified transformation: layout reconfigurations, designer kitchens, luxury bathrooms, flooring, lighting, windows and street presence, all working together. The result is a home that feels intentional, balanced and built to a higher standard.
On most Castle Hill homes built in the seventies, eighties and nineties, the biggest single gain is not the kitchen. It is the wall between the kitchen and the living room, and where the light lands once it is gone.
Quick Answer
Ground floor renovation work runs $2,500 to $4,500 per square metre, with roughly $30,000 in preliminaries (design, engineering and council approvals, plus site set-up) on top. A full internal renovation of a typical Castle Hill home generally falls between $180,000 and $450,000. Structural changes, wet areas and the age of the existing services are the things that move that figure most.
Renovating in Castle Hill
What shapes a renovation in Castle Hill.
Castle Hill is established family homes on generous blocks, and most of them are now at exactly the age where a complete renovation makes sense. Here is what shapes a project locally.
Council
The Hills Shire
Castle Hill sits within The Hills Shire Council. Internal renovations that keep the structure and footprint often need no approval at all under Exempt Development, and where structural changes are involved, most Castle Hill homes sit outside heritage overlays, so the faster Complying Development pathway is usually available.
Housing
Seventies to nineties brick, ready for its second life
Castle Hill is largely full brick and brick veneer homes from the seventies through nineties: solid bones, dated layouts. Small kitchens walled off from living areas, formal rooms nobody uses, bathrooms from another era. Exactly the stock where opening the plan transforms the whole house.
Structure
Good frames, hidden surprises
The framing of this era is generally sound, but forty years of settlement, previous handyman renovations and undocumented alterations are common behind the linings. We check and rectify the structure before anything goes back on, so the finished walls stay flat.
Layout
Big footprints, poor flow
Castle Hill homes are rarely short on floor area. The renovation gain is in the flow: removing the walls between kitchen, dining and living, opening the rear to the yard, and turning unused formal rooms into space the family actually lives in. Most of those walls are structural, and we engineer them out properly.
Services
Wiring and plumbing of a certain age
Homes of this vintage often carry original switchboards, aging wiring and galvanised or early copper plumbing. A full renovation is the one moment these can be replaced without ripping open finished rooms, and we assess them up front rather than mid build.
Value
A suburb worth reinvesting in
With the Metro, the schools and Castle Towers, Castle Hill values support serious renovation spend. A complete transformation typically costs far less than trading up within the suburb once stamp duty and agent fees are counted, and you keep the block you already own.
Thinking bigger than a renovation? We also build second storey additions in Castle Hill and home extensions in Castle Hill, and staging them alongside a renovation costs less than doing them years apart.
Start here
Tell us about your Castle Hill home.
No sales pitch, no obligation. Here is exactly what happens when you enquire:
One at a time, takes about two minutes, so the first conversation is about your project rather than the basics.
The Strava standard
How we build differently.
We build for longevity. That sounds like a slogan until you see where it costs us money. On every Castle Hill renovation we run:
The existing structure gets rectified, not covered
Plenty of renovations put new gyprock over old problems and hope for the best. We do a full screw off and re-brace the whole house, tying new and existing structure together so the frame moves as one and future cracking is designed out, not painted over.
Furring channels for a dead flat finish
We install furring channels throughout, creating a perfectly level plane for the new linings regardless of what the old frame is doing behind them. Flat on handover day, still flat in raking afternoon light years later.
Waterproofing is a documented hold point
Wet areas are inspected and photographed before a single tile goes on, to AS 3740.
Blocking installed at frame stage
Extra noggins and fixings go in where vanities, TVs, handrails and shower screens will hang later, not chased in afterwards.
Every new-to-existing junction properly detailed
This is where most renovations crack. It is almost always a detailing shortcut, not settlement. Ours get a proper flashing and movement detail.
Everything photographed before it is covered
You receive the record at handover, so in ten years you know exactly what is behind your walls.
Honest numbers
What a renovation costs in Castle Hill.
Most builders will not put numbers on a website. We will, because the alternative is wasting your time and ours across three meetings before anyone mentions a figure.
| Item | Typical range |
|---|---|
| Full internal renovation, typical Castle Hill home | $180k–$450k |
| Ground floor renovation work | $2,500–$4,500 /m² |
| Work at first floor level | $3,500–$5,500 /m² |
| Preliminaries, on top of build cost | approx. $30,000 |
Castle Hill homes tend toward the larger end of Sydney floor plans, which pushes total cost up but brings the per square metre rate down: bigger areas spread the fixed costs further.
How many of the walls you want gone are structural is usually the largest single factor, followed by the number of wet areas, since a bathroom carries more trades per square metre than any other room in the house. Homes from the seventies and eighties frequently need switchboard and plumbing upgrades, priced up front rather than discovered mid build.
Every project is quoted properly after a site inspection. These ranges are here so you can decide whether it is worth a conversation.
Good to know
Castle Hill renovation questions.
Rated 5.0 on Google.
We had Strava Group complete major renovation works on our property and were blown away with the quality. The attention to detail and overall finish were amazing.
Great communication, honest work, easy to work with, highly recommend to work with for any new build/renovations. If you are looking to get work done without worrying about shortcuts Strava Group is builder to use.
I highly recommend Strava Group to everyone great workmanship, reliable service, and I couldn’t be happier with the result.
I couldn't be happier with the work from Strava Group. From the beginning, Stav and the team was friendly, honest, and super easy to deal with.
We engaged Strava Group for a home extension and renovation. We are incredibly happy with the service and the results we achieved. From day one Stav and team where always willing to help with any issues we had and we loved that the main focus was as quality and longevity. Highly recommended
Had a great experience with Strava Group. The team was easy to deal with, super professional, and kept me in the loop the whole way through. They really listened to what I wanted and made the whole process feel smooth and stress-free.
Aloona T.
Google review
Orom Gabriel
Google review
Jonathan
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Clara Shabow
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Jonathan Jajo
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Eli Kosso
Google review
Also nearby
Home renovations near Castle Hill.
Home renovations nearby
The Hills District
Hornsby and the Northern Suburbs
Ryde, Hunters Hill and the North Shore
Inner West
Parramatta
Western Sydney
Southern Sydney and St George
See all Sydney home renovation areas.
Renovate your Castle Hill home properly.
Ready to transform how your home works?
Tell us about your property and what you want to change. We respond within 24 to 48 business hours with honest advice and real numbers, no cost, no obligation.
More in Castle Hill
Other services in Castle Hill
Each page covers the local council, the homes we see in Castle Hill and what that kind of project typically costs.