House extensions in Ashby de la Zouch, from the Georgian core to the new estates
Ashby has one of the more demanding planning contexts we work in, and also some of the most extendable modern housing in Leicestershire. The two sit side by side: a tightly protected Georgian and medieval core around Market Street and the castle, and then large, relatively recent estates at Money Hill and Willesley where the constraints largely fall away. Parker Grears builds across the town and the surrounding National Forest villages as one contractor responsible for design, the North West Leicestershire application and the build.
- FMB Approved
- 5 year workmanship guarantee
- Rated 5.0 on Google
Double storey rear extension, Leicestershire
- FMB Approved
- £5m public liability insurance
- 5 year guarantee, optional 10 year insurance backed
- Free, no obligation consultation
What suits Ashby housing
Which part of the town you are in decides most of what is realistic.
Money Hill, Willesley and the newer estates
Regular plots, modern cavity wall construction and integral or attached garages. Rear extensions and garage conversions are efficient and predictable here, and a garage conversion is usually the best value per square metre available.
Interwar and post war housing
Well suited to a single storey rear extension creating an open plan kitchen diner, or a double storey extension where a fourth bedroom is the real driver.
Georgian townhouses and Victorian terraces
In the centre: solid walls, shallow foundations and lime mortar, which change both the method and the price. Rear and side return infills are the usual answer, and the conservation area applies.
Planning permission for an extension in Ashby de la Zouch
Your planning authority is North West Leicestershire District Council. Three things shape what is achievable. The Ashby de la Zouch conservation area covers the historic centre including Market Street, South Street, Kilwardby Street and the streets around St Helen’s Church, where permitted development rights are reduced and side extensions and roof alterations usually need full planning permission. The town centre has a significant number of listed buildings, where listed building consent is required in addition to planning permission and covers internal alterations. And Ashby Castle is a scheduled monument in the care of English Heritage, so the setting of heritage assets is a material consideration for nearby properties even where they are not themselves designated.
On the modern estates the picture is much simpler, although some have had permitted development rights removed by condition, which we check for your address rather than working from the general rule.
Outside any designated area the standard permitted development allowances apply in England: a single storey rear extension of up to 4 metres on a detached house or 3 metres on a semi detached or terraced house, extendable to 8 metres and 6 metres under the larger home extension prior approval route, subject to height, eaves and boundary limits. Building regulations approval is always needed, and on a semi or terrace the Party Wall etc. Act 1996 usually applies, with two months’ notice for party wall works and one month for excavation within three metres of a neighbour’s structure. We check the constraints on your address before any design work starts.
What a house extension costs in Ashby de la Zouch in 2026
We quote every town on the same 2026 rates. Cost is driven by size, ground conditions, structural work in the existing house, glazing and finish level, not by postcode. Modern estate housing is generally the most predictable and economical to extend; conservation area and listed property costs more per square metre because of matching materials, careful detailing and the structural unknowns that come with older buildings. We show that in the quotation rather than hiding it behind a headline figure.
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.
Featured project
Phased extension and new build double garage
A phased scheme at Cadeby, a few miles south of Ashby: phase one, a new build double garage, is complete and the next phase is under way. A good example of how we programme larger projects in the villages so the client can stay on site and spread the cost.
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.
What homeowners say
Every review below is a real, named Google review. Rated 5.0 on Google. Read them all on Google.
“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.”
“Had Parker Grears to convert our garage into bedroom bathroom and utility, we can highly recommend this company for their punctuality and quality of workmanship was excellent. Any problems that arose were quickly resolved. We are pleased with the finished project.”
“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.”
Common questions about extending in Ashby de la Zouch
Can I extend a listed building in Ashby?
Usually yes, but you will need listed building consent as well as planning permission, and consent is required for internal alterations too. Carrying out work to a listed building without consent is an offence, so it is worth establishing the position before any design work.
Do I need planning permission on the newer estates?
Frequently not: a modest single storey rear extension or a garage conversion often falls within permitted development. Some modern estates have had permitted development rights removed by condition, so we check your specific address with North West Leicestershire District Council.
How much does an extension cost in Ashby?
Most 15 to 25 m² single storey extensions come out between £50,000 and £80,000 including VAT, larger single storey or wraparound extensions between £80,000 and £130,000, double storey extensions between £110,000 and £175,000, and garage conversions from £14,000 to £55,000.
Which areas do you cover around Ashby?
Ashby de la Zouch plus Measham, Moira, Packington, Coleorton, Heather and the surrounding National Forest villages, alongside Market Bosworth, Atherstone and our core North Warwickshire and Leicestershire area.
How long does an extension take?
Roughly 10 to 14 weeks on site for a single storey rear extension, 16 to 22 weeks for a double storey extension and 4 to 6 weeks for a standard garage conversion. Planning determination, where needed, is separate and normally takes around eight weeks from validation. You get a written programme with the quotation and a schedule at the start of every week.
What guarantee do you give?
A 5 year company workmanship guarantee as standard, with an optional 10 year insurance backed guarantee available. Every extension is signed off by building control and you receive the completion certificate.
Areas we cover around Ashby de la Zouch
Ashby de la Zouch plus Measham, Moira, Packington, Coleorton, Heather and the surrounding National Forest villages, alongside Market Bosworth, Atherstone and our core North Warwickshire and Leicestershire area. Ashby is about half an hour from our Nuneaton yard.
What else we build in Ashby de la Zouch
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.
Book a free consultation for your Ashby de la Zouch extension
We will come out, look at the property, talk through what is realistic and give you a written budget range at no charge. Call, WhatsApp or send the form and Sean or Paul will come back to you within one working day.
024 7518 5349- Message us on WhatsApp
- info@parkergrears.com
- 47 Northumberland Avenue, Nuneaton CV10 8ER
- Monday to Saturday, 9am to 5pm
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