Do I need council approval for an extension in Epping?

Yes. Inside the Epping heritage conservation areas it is a Development Application through the City of Parramatta Council, and a rear extension that sits behind the main roofline and keeps the street presentation is well supported. Outside those areas most detached homes qualify for a Complying Development Certificate through a private certifier, which is significantly faster. Tree removal needs its own approval. We confirm which pathway applies to your property before quoting.

How long does a home extension take to build in Epping?

Most extensions run 12 to 20 weeks on site. Design and approvals happen before that: a CDC takes about 4 to 8 weeks, and a DA can take up to 6 months, depending on council. We give you a programme with the quote, not after you have signed.

Can I live at home during the extension?

Usually yes. Because the work is concentrated at the rear or side, most Epping families stay in the house for most of the build, with a shorter disruptive period when we break through and connect the new space to the old. We plan the breakthrough stage with you so you know exactly when it is coming.

Should I extend out or add a second storey in Epping?

On a typical Epping block, extending out is usually the better path because the land is there and, in the conservation areas, the controls favour work that sits behind the original house. Going up makes more sense on the tighter blocks closer to the centre where the yard has to be kept. We build both, so the advice is honest: we look at your block and tell you which one your home actually wants. A house extension and a second storey are different builds with different engineering, and we quote both honestly.

Will the extension match my existing house?

That is a design decision, and both answers can work. In the conservation areas council generally prefers a rear extension that reads as clearly new, as long as it sits behind the main roof and respects the scale of the house. Elsewhere a matched brick and roofline is possible where the original brick can still be sourced. What must always match is the standard of the junction between old and new, which is where our detailing does its work.

How will I know what is happening during my extension?

Two ways. You get a weekly update from the builder running your job, whether or not there is good news in it. And you get access to our client portal, where you can log in any time to see your documents, selections, variations and job status. No chasing, no phone tag, no wondering.

Are you licensed and insured?

Yes. Strava Group holds NSW Builder's Licence 487370C and carries public liability insurance and Home Building Compensation Fund cover on all residential work over the statutory threshold. You can verify the licence directly through Verify NSW at verify.licence.nsw.gov.au.

Timber roof and wall framing in a renovation

Home Extensions · Epping NSW 2121

Home extensions in Epping, done properly.

Rear and side house extensions for Epping 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.

Get Your Extension Assessed Call 0450 605 080

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487370C

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City of Parramatta Council areaNSW Builder’s Licence 487370CItemised quotesClear inclusions & exclusions0450 605 080

Extending out, not up

Extending an Epping home on a generous block.

Strava Group builds home extensions in Epping: rear additions, side extensions and whole-of-back transformations that open the house to the garden. Epping is a suburb of two halves: the town centre has gone up, but the streets behind it are still Federation, interwar and mid-century homes on large, leafy blocks, with several heritage conservation areas protecting the character. Those blocks are prime extension country, and the original houses are usually worth keeping at the front.

In Epping 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 in Epping.

The typical Epping brief is a good older house on a big block with a tired back half. The rooms at the front stay. The kitchen and sunroom at the rear come off, and a proper open plan living that reaches into the garden goes on.

Kitchen with a white island, timber-look overhead cabinetry and LED strip lighting

Quick Answer

Most home extensions in Epping run $70,000 to $300,000 depending on size and how much of the existing structure has to change, at roughly $2,500 to $4,500 per square metre for ground floor work, with around $30,000 in preliminaries (design, engineering and council approvals, plus site set-up) on top. The larger Epping blocks support substantial open plan extensions, which tends to put projects in the middle of the band, with heritage controls and sloping sites adding to it.

Local knowledge

What we know about extending in Epping.

Every suburb builds a little differently. This is what matters when you are extending a Epping home.

Council

Epping sits mostly in the City of Parramatta Council area under the Parramatta Local Environmental Plan 2023, with the northern edge in Hornsby Shire. Several Epping precincts, including streets around Essex Street and Rosebank Avenue, sit inside heritage conservation areas where extensions go through a Development Application. Outside those areas most detached homes can use Complying Development through a private certifier. We confirm the pathway for your property before quoting. Current planning controls are published by City of Parramatta Council and on the NSW Planning Portal.

Housing stock

Federation and interwar homes on the older streets, a broad stock of 1950s and 60s brick and weatherboard houses, and later two storey homes on the larger blocks. Many of the older houses have been extended once before, often with a fibro sunroom or lean-to that was never built to last. Those earlier additions usually come off and are replaced with something engineered.

Structure

Older Epping homes are double brick or weatherboard on timber floors with hardwood framing and terracotta roofs, and the mid-century stock is brick veneer on a timber frame. Cutting a new opening into a double brick rear wall needs an engineered lintel and careful propping, and the new floor has to meet the existing suspended floor exactly. Brick veneer extends more simply once the load path is engineered.

Yard and block

Blocks in Epping are typically 700 to 1,000 square metres and often larger on the older streets, many of them sloping and treed. The trees are protected under council controls and usually shape where the extension can go. The size of the block means a substantial rear extension is possible while keeping a real garden.

Services and ground

Epping sits on shale derived clay soils that move with moisture, with sandstone near the creek lines toward the Lane Cove valley. New footings are engineered for the site and detailed against the existing ones so the extension does not settle away from the house. Old services and absorption trenches on the larger blocks are located before we design.

Value

Epping is one of the best connected suburbs in northern Sydney, with rail and Metro, the town centre and strong school catchments holding demand. Buyers here pay for character houses on big blocks that have been extended properly at the rear, and a considered extension that keeps the front intact is one of the safest improvements in the suburb.

Start here

Tell us about your Epping 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.

Start Your Enquiry Call 0450 605 080

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 Epping 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 it matters more on an older house whose original footings were never engineered to modern standards.

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 Epping.

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
Home extension, depending on size and scope	$70k–$300k
Ground floor extension work	$2,500–$4,500 /m²
Preliminaries, on top of build cost	approx. $30,000

Preliminaries are the costs that exist before a single wall moves: design, engineering and council approvals, plus site set-up such as site fencing, temporary services, waste removal, insurances 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 Epping the larger blocks allow substantial extensions, which tends to put projects in the middle and upper part of the band, with heritage controls on some streets, protected trees and sloping sites adding design and engineering work. How much of the existing structure has to change is usually the largest single factor, followed by wet areas and how far 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.

Good to know

Epping extension questions.

From our clients

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Nearby

Home extensions near Epping.

We build extensions across Parramatta, Hornsby and the surrounding northern suburbs. Select a suburb for local council information and what extensions there typically cost.

Northern suburbs

Home Extensions Carlingford Home Extensions Eastwood Home Extensions Beecroft Home Extensions Cheltenham Home Extensions North Ryde

All Sydney extension areas

Looking for a different service in Epping? We also build second storey additions in Epping and home renovations in Epping.

Extend your Epping 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.

Get Your Extension Assessed Call 0450 605 080