Extensions in Wainbody
Most extensions are decided long before anyone digs: how deep you can go without a planning application, what is in the ground, and where the daylight will come from once the back wall moves.
- Local to Wainbody
- Fully insured
- Free fixed quotes

Property Maintenance Coventry builds home extensions in Wainbody: single-storey rear, side return, wrap-around and two-storey. Groundworks and foundations, structural steel to engineer calculations, roof, glazing and full fit-out, with Building Control involved throughout. Survey first, then a fixed written quote and a programme.
Working in Wainbody
Wainbody is south-west of the centre across the CV3 and CV4 postcode districts, taking in the Kenilworth Road side of the city near Gibbet Hill, Green Lane and Cannon Park.
Properties here tend to be larger and set in bigger plots, which changes the work: more roof and more elevation to maintain, longer runs of boundary wall and fencing, and landscaping on a scale where drainage has to be designed rather than assumed.
Mature trees are common on these plots, and they matter for extensions: on clay, roots change the foundation depth. We establish that before a design is finalised, not after the digger arrives.
- Cannon Park
- Finham Park School
- St Martin in the Fields
- A lawful development certificate is the document that answers a buyer's solicitor years later.
- Permitted development never removes the need for Building Regulations approval.
- Removing the existing rear wall on a beam is what turns an extension into one room rather than two.
- Rooflights over the junction are what stop the original back room going dark.
- On a semi or terrace, party wall notice is the norm rather than the exception.
The work itself, in plain terms
What we build around Cannon Park and the rest of Wainbody, and the stages each project goes through.
Single storey rear extensions
The most common project we build: a rear extension, sized where possible to stay within permitted development.
Two storey extensions
Two-storey builds from foundations up, including the bedroom-level disruption planned around realistically.
Side returns & side extensions
Filling the side alley to turn a narrow kitchen into a usable room, with rooflights to keep the middle of the house bright.
Planning & Building Control
Guidance on which approvals apply, including lawful development certificates, party wall notices and build-over agreements.
Groundworks & structure
Foundations sized to the actual ground conditions, and structural steel to engineer calculations.
Full fit-out
Everything after the shell: services, finishes and the snagging done before we call it complete.
Built around how you own the property
Growing families
More usable space without changing schools, neighbours or the commute.
Open-plan projects
Rear builds combined with removing the original back wall, which is where the transformation actually comes from.
Investors
Extensions costed against the realistic ceiling value for the street, not for the postcode in general.
The jobs that start with a phone call
- 01
A finished extension with a step down into it, because the slab level was set before anyone measured the house floor.
- 02
A build-over agreement discovered at trench stage rather than at design stage.
- 03
A kitchen-diner planned with no structural allowance for taking the existing rear wall out.
- 04
An extension that leaves the original back room dark, because all the glazing went in the new rear wall.
- 05
A large tree close to the build on clay soil, which changes the foundation depth and sometimes the design.
- 06
A party wall notice served too late, holding up a start date that had already been booked.
What we check on a property in Wainbody
Every quote starts with a survey. These are the things we look at on extension work in Wainbody, and why each one changes the recommendation.
Services to be diverted
Gas meters, soil pipes, external taps, boiler flues and incoming supplies all tend to be exactly where the new wall goes. We identify them early so diversions are planned, not improvised.
Where the waste goes
New kitchen and bathroom wastes need routes and falls to existing drainage. Planning those routes early avoids boxed-in pipework in the middle of a new room.
Building Control route and inspection points
We establish which body is inspecting and when they need to attend. Inspections built into the programme never delay a job; inspections remembered late always do.
Existing drainage and manholes
We locate drain runs and inspection chambers early. A build-over agreement takes time to obtain, and a manhole found after setting out is an expensive discovery.
Levels, inside and out
The relationship between the existing floor, the new floor and external ground level affects damp detailing, thresholds and step-free access. It is much easier to resolve on paper.
Contingency and what could move the price
We say plainly which parts of the quote are firm and which depend on what we find — usually foundations and the existing structure — so the contingency is a planned figure rather than a shock.
Simple, transparent, no pressure
Free inspection & advice
We visit, assess the job properly and explain your options in plain English — no pressure.
Transparent fixed quote
A clear, line-by-line quote with no hidden costs. You decide in your own time.
Expert workmanship
Our qualified, insured team completes the work on time, on budget and to a high standard.
Walkthrough & tidy finish
We clean up fully and don't leave until you're 100% happy.
Trusted across Coventry
Extensions in Wainbody — your questions answered
Still have a question? Our local team is happy to help — no pressure, no jargon.
Speak to us today0786 5778332Do you work on properties near Cannon Park?
Yes. Cannon Park is one of the landmarks we use to describe where we work in Wainbody, and we take on extension jobs throughout the surrounding streets. Access and parking get checked at survey, so the quote fits the property.
Is Wainbody in your coverage?
It is. Wainbody sits in the CV3 and CV4 district and we work there regularly. Give us the full postcode when you call and we can be specific about survey dates.
Is a two-storey extension much more expensive than single-storey?
Per square metre it is usually cheaper, because the most expensive elements — foundations and roof — are shared across two floors. The total is obviously higher, and two-storey work is far more likely to need planning permission, more likely to engage the Party Wall Act, and more disruptive because it affects bedrooms. The per-metre efficiency is real, but it is not the only consideration.
What is a lawful development certificate and should I get one?
It is a formal confirmation from the council that your project is permitted development and did not need planning permission. It is optional, but it is cheap relative to the build and it is the document a buyer's solicitor will ask for years later. Without it you are relying on your own reading of the rules to satisfy a future conveyancer, which is an awkward position to be in at the point of sale.
Will an extension add value?
Usually, though rarely pound for pound, and the ceiling is the top of the market for your street. Adding a bedroom or opening up a cramped ground floor tends to do better than simply adding area. Overdeveloping relative to the neighbours is the way to spend money you will not get back. We would rather say that at survey than after you have committed.
What are the rules on building near a boundary?
Under permitted development a single-storey extension within two metres of a boundary is limited to three metres at the eaves, and side extensions have their own width limits. Separately, you need to be able to build and maintain the wall, which may require access to a neighbour's land. Building right up to a line is possible but it changes the method and the neighbour conversations, so it is worth deciding early.
How much glass can we have?
More than people expect, with caveats. Building Regulations limit heat loss across the whole building rather than capping glazing outright, so large openings are achievable if the rest of the fabric compensates. The practical limits are structural — a wide opening needs a bigger steel — and comfort: a fully south-facing glass box overheats in summer unless shading or solar-control glass is designed in.
Get your free extensions quote in Wainbody
Tell us what you are hoping to add and roughly where on the house. We will come and look at the plot, the drains and the access, and tell you what is realistic before anyone pays for drawings.
- No obligation, no pressure, no hidden costs
- Qualified, insured Coventry tradespeople
- Fast response — within 24 hours on urgent jobs
