Home Extensions · Denistone NSW 2114
Home extensions in Denistone, done properly.
Rear and side house extensions for Denistone homes by a licensed extension builder. Most extensions run $70,000 to $300,000 depending on size and how much of the existing house has to change, itemised quote, honest programme, one builder from concept to handover.
Start here
Tell us about your Denistone home.
No sales pitch, no obligation. Here is exactly what happens when you enquire:
- 1Answer a few quick questions. One at a time, takes about two minutes, so the first conversation is about your project rather than the basics.
- 2We call you within 24 to 48 business hours. A builder, not a salesperson. Then we walk your home and yard with you on site in Denistone.
- 3You receive a written, itemised estimate. Real numbers for your home. If the project does not stack up, we tell you that too.
From our clients
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.”
Extending out, not up
Denistone blocks have the room to extend.
Strava Group builds home extensions in Denistone: rear additions, side extensions and whole-of-back transformations that open the house to the yard. Denistone sits on the ridge between Eastwood and Ryde, and it is one of the tidiest extension propositions in the district: interwar and post-war brick homes on generous, elevated blocks, quiet streets, and backyards the original houses barely use. The brief is nearly always the same: the kitchen and living belong at the back, open to the yard and the view down the slope, and the original plan never put them there.
In Denistone we regularly deliver:
- Rear extensions and additions
- Side extensions on wider blocks
- Open plan kitchen, dining and living
- Alfresco and indoor-outdoor connections
- New master suites and family rooms
- Laundries, mudrooms and storage done properly
- Structural openings between old and new
- Exterior upgrades to tie old and new together
Thinking about going up instead? That is a different build with different engineering, and we do that too: see second storey additions.
Local knowledge
What we know about extending in Denistone.
Every suburb builds a little differently. This is what matters when you are extending a Denistone home.
Council
Denistone sits in the City of Ryde Council area under the Ryde Local Environmental Plan 2014 and the Ryde Development Control Plan. Most detached homes on standard residential zoning can pursue a ground floor extension through Complying Development with a private certifier rather than a full DA, subject to setbacks, site coverage and landscaped area. Heritage items are few. We confirm the pathway for your property before quoting. Current planning controls are published by City of Ryde Council and on the NSW Planning Portal.
Housing stock
Interwar brick bungalows and a strong stock of 1940s to 60s full brick and brick veneer homes, many of them solidly built and worth keeping, with some later two storey houses. Many carry an enclosed verandah or sunroom from decades ago that was never built to last. Those earlier additions usually come off and are replaced with something engineered.
Structure
Mid-century brick veneer homes are straightforward to extend once the load path is engineered. The interwar and full brick houses need more care at the junction: we cut the openings cleanly, install engineered steel and tie the new frame into the existing brickwork properly, and the new floor has to meet an old suspended floor exactly. On the sloping blocks the new floor often sits on a suspended slab or bearers, which is a detail that has to be right.
Yard and block
Denistone blocks are typically 550 to 850 square metres, many of them sloping off the ridge toward West Ryde or Eastwood. The slope shapes the design: on the steeper blocks the extension steps down the site and the space underneath becomes useful. Side access is usually workable, and the elevation often gives the new rear rooms a district outlook.
Services and ground
Denistone sits on shale derived clay soils that move with moisture, with sandstone in the slopes off the ridge. Footing design varies across a single block, so the engineering is done for your site, and new footings are detailed against the existing ones so the extension does not settle away from the house. Sewer lines often run along the rear of the block and are located before design starts.
Value
Denistone is a quiet, tightly held pocket between two stations, with Denistone and West Ryde rail, the schools and the elevated position holding demand. A well built extension that converts a dated rear layout into open plan living with a genuine yard connection is one of the most reliable improvements you can make here, and it usually costs less than the stamp duty and agent fees involved in moving to a bigger house nearby.
The Strava standard
How we build differently.
An extension lives or dies at the junction between old and new. We build for longevity, and on every Denistone extension we run:
Every new-to-existing junction properly detailed
This is where most extensions crack, leak and part company with the house. It is almost always a detailing shortcut, not settlement. Ours get a proper structural tie, flashing and movement detail.
The existing structure gets rectified, not covered
Where the extension meets the house, we screw off and re-brace the adjoining structure, tying new and old together so the whole building moves as one and future cracking is designed out, not painted over.
Footings matched to the ground, not the minimum
New footings are engineered for your soil and detailed against the existing ones, because differential movement between old and new slabs is the classic extension failure, and the mix of clay and sandstone off the Denistone ridge means the engineering is done for your site, not copied from a neighbour.
Furring channels for a dead flat finish
Where new ceilings and walls run through to existing rooms, furring channels give one level plane across both, so you cannot see where the house ends and the extension begins.
Waterproofing is a documented hold point
New wet areas are inspected and photographed before a single tile goes on, to AS 3740, and new roof-to-old-roof junctions get the same treatment.
Everything photographed before it is covered
You receive the record at handover, so in ten years you know exactly what is behind your walls and under your floor.
Before starting Strava Group, I spent seven years on the tools as a carpenter and five years running sites. The failures I kept seeing in extensions were always at the join: cracked cornices along the old wall line, roofs that leaked where new met old, floors that stepped as slabs settled differently. None of it was illegal. All of it was avoidable. None of this shows up in a finished-room photo. All of it shows up in year seven.
Honest numbers
What a house extension actually costs in Denistone.
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.
Preliminaries are the costs that exist before a single wall moves: site fencing, temporary services, waste removal, insurances, engineering and supervision. They are real, they are unavoidable, and a quote that does not show them separately has either buried them or forgotten them.
In Denistone the block sizes support a proper open plan rear rather than a single room, which tends to put projects in the middle of the band, with sloping sites and older full brick houses adding to it. How much of the existing structure has to change is usually the largest single factor, followed by wet areas and how far the new footings have to go to find good ground.
Every project is quoted properly after a site inspection. These ranges are here so you can decide whether it is worth a conversation.
Nearby We build extensions across Ryde district and the surrounding suburbs. Select a suburb for local council information and what extensions there typically cost. Looking for a different service in Denistone? We also build second storey additions and home renovations.
Home extensions near Denistone.
Ryde district
Good to know
Denistone extension questions.
How much does a home extension cost in Denistone?
Do I need council approval for an extension in Denistone?
How long does a home extension take to build in Denistone?
Can I live at home during the extension?
Should I extend out or add a second storey in Denistone?
Will the extension match my existing brick house?
How will I know what is happening during my extension?
Are you licensed and insured?
Extend your Denistone home properly.
Ready for more room?
Tell us about your property and what you want to add. We respond within 24 to 48 business hours with honest advice and real numbers, no cost, no obligation.
