House extensions in Nuneaton, built by one contractor you can hold to account
Single storey, double storey, rear, side and wraparound extensions across Nuneaton, Bedworth, Hinckley, Coventry and the wider Midlands. Parker Grears manages the design, the approvals and every trade on site, and the price is agreed from an independent cost check before you commit.
- FMB Approved
- TrustMark registered
- 5 year workmanship guarantee
- Rated 5.0 on Google
Rear extension with bifolds and patio, Wolvey
- FMB Approved
- TrustMark registered
- £5m public liability insurance
- 5 year guarantee, optional 10 year insurance backed
- Free, no obligation consultation
Types of extension we build
Every extension is designed around the house you have and the way you live. These are the six we build most often; most projects combine two of them.
What a house extension costs in 2026
Honest ranges, so you can see where a project like yours is likely to sit before we price it properly.
Single storey extension
A 15 to 25 m² rear or side extension, including VAT. Most kitchen diners sit here.
Find out more →Larger single storey or wraparound
25 to 40 m² of new ground floor space, often with bifolds, roof lanterns and a knock through into the existing house.
Find out more →Double storey extension
Two floors, 40 to 60 m² in total, typically a kitchen diner below and a bedroom with en suite above.
Find out more →Figures include VAT and cover the building work finished to a good standard. Kitchens, bathrooms, bespoke glazing and landscaping are priced separately as provisional sums so you can see them. They are a realistic planning range, not a quote: your number comes from your own drawings and an itemised breakdown. See our project investment guide for the full picture.
What drives the price
Size and shape
A simple rectangle on a straightforward site is the most efficient build. Every corner, change of level or awkward roof junction adds labour.
Structure in the existing house
Opening the back of the house means steel beams, padstones and temporary works. A full knock through costs more than a single doorway, and it is where the value is.
Glazing and roof lights
Bifolds, sliding doors and roof lanterns are the items that move the budget most after the structure. We price them as separate lines so you can choose.
Ground conditions
Much of the area sits on clay, and trees close to the extension can mean deeper foundations or a raft. We check this early so it never arrives as a surprise.
How a project runs with us
Nobody signs anything until the price is real. Every stage is a small step, so you are never asked for a big commitment on a vague number.
Free consultation and budget
We visit, look at the property and talk through what you want. You get a written budget range built from your ideas or early drawings, at no charge.
Design and approvals
If you need drawings we introduce architects we trust, then handle planning, building regulations and the structural engineer with them.
Independent QS takeoff
Before the price is fixed we recommend an independent quantity surveyor measures the final drawings line by line. It costs £240 plus VAT, refunded in full if you appoint us, and you keep the document either way.
Fixed quotation and contract
The agreed takeoff becomes the project budget. You get a fixed quotation built from it, a written contract and stage payments tied to progress, never paid ahead of the work.
The build
One point of contact, a schedule at the start of every week, both directors’ numbers, and any change agreed in writing before it happens. Sites are kept clean for you and your neighbours.
Handover and guarantee
Building control sign off, certificates and a 5 year workmanship guarantee as standard, with an optional 10 year insurance backed guarantee available.
Featured project
Single storey kitchen extension with a full knock through
A rear extension opening the original kitchen into one long kitchen and dining space, with roof lights over the island, the knock through carried on a steel beam and building control sign off handled by us. It is the job we are asked about most often.
What homeowners say
Every review below is a real, named Google review. Rated 5.0 on Google. Read them all on Google.
“We had a new extension and kitchen and the whole project totally surpassed our expectations. Everything was done to a very high standard from start to finish. Sean and Paul were great with every detail of the project no matter how big or small.”
“At the start of each week we were given a schedule and that’s what happened, no false promises made. Their attention to detail, costs, and timing was just right, it felt like they were doing the work on their own properties they took so much care.”
“Sean and Paul took control of every minor detail so that we could sit back and relax. Even with the roof being lifted off the house, minimal disruption occurred. Further structural work was uncovered during the build and dealt with accordingly without impacting the final budget.”
Frequently asked questions
How much does a house extension cost in Nuneaton in 2026?
Most single storey extensions we build come out between £50,000 and £80,000 including VAT for 15 to 25 m², and larger single storey or wraparound extensions between £80,000 and £130,000. Double storey extensions typically run from £110,000 to £175,000. Kitchens, bathrooms and bespoke glazing are priced separately so you can see them. Your own figure comes from your drawings and an itemised breakdown.
Do I need planning permission for an extension in Nuneaton?
Many single storey rear extensions fall within permitted development, which means no planning application, although building regulations approval is always needed. Double storey extensions, side extensions over half the width of the original house, and anything in a conservation area or on a listed building normally need a full application to Nuneaton and Bedworth Borough Council. We check your address before any design work starts.
How long does a house extension take?
A single storey extension typically takes 10 to 14 weeks on site. A double storey extension takes 16 to 22 weeks and a wraparound 18 to 26 weeks. Add two to four months before that for design, planning and building regulations drawings if you are starting from scratch.
Do you handle the design, planning and building control?
Yes. If you do not have drawings we introduce architects we trust and work with them through planning, building regulations and the structural engineer. During the build we deal with building control inspections and hand you the completion certificate at the end.
Can we live in the house while you build?
Almost always, for single storey and most double storey extensions. We keep the existing house weathertight and dust sealed until the knock through, which we schedule towards the end so your kitchen is out of action for as short a time as possible.
What guarantee do you give on an extension?
A 5 year company workmanship guarantee as standard, with an optional 10 year insurance backed guarantee available on all completed work.
Other ways we add space
Parker Grears is the principal contractor on every job: our own people alongside established specialist trades, with one point of responsibility for the site, the programme and the finish.
Where we work
We are based in Nuneaton and work across Warwickshire, Leicestershire and the wider Midlands. Most of our projects are within forty minutes of the yard, which keeps the same people on your site from the first day to the last.
Tell us about your project
Call, WhatsApp or send the form. Sean or Paul will come back to you within one working day, and the first conversation is always free and without obligation.
024 7518 5349- Message us on WhatsApp
- info@parkergrears.com
- 47 Northumberland Avenue, Nuneaton CV10 8ER
- Monday to Saturday, 9am to 5pm
Book a free extension consultation
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