House extensions · Billericay
House Extensions in Billericay
Moving up the ladder in Billericay is expensive, which is why so many families here decide the smarter move is to stay and build. That is what we do: extensions designed and built properly on the town's larger detached homes, its period houses near the centre, and the family houses in between, with the planning and building regulations handled for you and one team on the job from the drawings through to the finished room.
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Essex
Rear extension
Detailed quotations
Itemised before work starts
The price we quote
is the price you pay
Director-led
Every project overseen by Jason Berry
On schedule
Agreed timeline, kept
House extensions in Billericay
Thinking about extending your Billericay home?
Book a free, no-obligation visit and we will tell you what is possible on your property and what the planning looks like.
Why homeowners choose us
Why homeowners here choose us
One team runs the job from start to finish, so there is always a clear point of contact and nobody passing the buck. We handle the planning and building regulations. Our quotes are properly itemised, which is what lets you compare builders honestly on a larger job. And most of our work comes through recommendation.
Matched to your home
What we build here
Billericay's housing suits ambitious work, and the projects reflect that.
- Large single-storey rear extensions, often with bifold or sliding doors and a roof lantern.
- Double storey extensions, adding bedrooms above new living space, usually the best value per square metre.
- Wrap-around extensions on the wider plots.
- Kitchen extensions built for cooking and entertaining.
- Careful work on the older and period homes near the centre, where we match brickwork and materials to suit the age of the house. A closer match takes more care and can affect the quote, and it is what stops an extension looking bolted on.
Planning & regulations
The good news on planning here
A lot of Billericay homeowners assume an extension means a long planning battle. Often it does not, and it is worth knowing before you rule anything out.
Much of the town's housing is detached, and detached homes get the more generous permitted development allowances, a deeper rear extension than a semi or terrace is permitted, for instance. So on plenty of Billericay plots, a well-judged extension can go ahead without a full application at all.
The main exceptions are worth knowing. The High Street and Chapel Street area is a conservation area, the largest in the borough, where design and materials are looked at closely and some permitted development rights fall away. The countryside around the town is Green Belt, where extensions are limited in scale rather than ruled out. And some newer developments have permitted development rights removed by planning condition, so it is worth confirming rather than assuming.
Your authority is Basildon Borough Council, becoming part of the new South West Essex Council in 2028. Working out which of these applies to your home, and handling any application, is our job rather than yours.
Local conditions
The ground under Billericay
Billericay sits on London Clay, on the higher ground that gives the town its hilltop High Street, with woodland like Norsey Wood on its edge and mature trees on many of the older plots.
Clay is the thing to respect here. It swells in the wet and shrinks in dry spells, and it moves most near large trees, so on a leafy plot foundations often need to go deeper than people expect. It is entirely manageable when it is planned for and a genuine problem when it is not, so we check the ground early and, on trickier plots, get it properly investigated before pricing the groundworks.
Cost, in the open
What an extension costs in Billericay
Cost comes down to size, specification, structural work and finish, and on a period home any material matching adds to that. Billericay briefs tend to run larger and higher spec than average, which shows in the figure.
As a rough guide, single-storey extensions commonly run at a few thousand pounds per square metre, with double storey often better value per square metre. That is a starting point, not a quote. Our cost calculator gives an early estimate, and a free site visit gives you a real, itemised figure.
Want a real figure for your project?
Book a free site visit and we will price the actual work, with a clear itemised quote and no pressure to proceed.
How it works
How your build will run
We set out the actual programme for your project at the site visit, allowing for its size, the ground and the season. For a feel of how a typical extension runs week by week, from groundworks to handover, see our guide on what to expect during your build.
What homeowners say
Trusted by homeowners across Essex
“From the moment he arrived he had a real professionalism and vision for what we could achieve. Jason was trustworthy and honest which made the whole build a pleasure.”
Kim and Tony, Ongar
Full house extension
Director-led
Common questions
House extension questions in Billericay, answered straight
The questions every Billericay homeowner asks at the first site visit.
Anything else? Call 07920 731533 and you’ll speak to Jason Berry, not a call centre.
Often not. With so much detached housing here, and detached homes getting the more generous permitted development allowances, a good deal can be done without a full application. The conservation area around the High Street and Chapel Street, Green Belt land around the town, and planning conditions on some newer developments are the main exceptions. We check your exact address with Basildon Borough Council.
It depends where you are. The conservation area covers much of the town centre, including the High Street and Chapel Street, and it is the largest in the borough. If your home is in it, design and materials are judged more closely and some permitted development rights fall away. We confirm exactly where your property sits.
Billericay sits on London Clay, which moves with the seasons and shifts most near large trees, and many plots here are leafy. That often means deeper foundations than people expect, so we check the ground before pricing rather than meeting it mid-build.
Yes. On period homes we match brickwork and materials to suit the age of the property, which is what keeps an extension looking like part of the house. A closer match takes more care, so it can affect the quote.
Call us on 07920 731533 or send the enquiry form. We arrange a free, no-obligation site visit, then give you a clear, itemised written quote for the actual project.
Billericay itself, along with Great Burstead, Little Burstead, Ramsden Bellhouse, Stock, Wickford and the surrounding villages. Call us to confirm your postcode.
Start your extension
Thinking about extending your Billericay home?
Call 07920 731533, request a callback, or book a free, no-obligation site visit. We will tell you what is possible on your property and what the planning looks like. No pressure, and no obligation to proceed.