Newport Pagnell, Buckinghamshire
Glazed rear extension in Newport Pagnell
Full-height glass, slim frames and big rooflights for the most open rear room. If you live in Newport Pagnell and want to know what a glazed rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
We cover Newport Pagnell (MK16) as part of our Buckinghamshire work. If your garden in Newport Pagnell faces south, expect us to talk about overhangs and solar-control glass before frame colours.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a glazed rear extension cost in Newport Pagnell?
Guide prices for a glazed rear extension in Newport Pagnell start from our South East England rate of £3,140–£5,380 per square metre, including VAT. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £37,500–£64,500 |
| 4 m wide × 6 m deep (24 m²) | £75,500–£129,000 |
Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a glazed rear extension in Newport Pagnell?
Whether your glazed rear extension in Newport Pagnell needs a planning application depends on its size, your house and any local restrictions.
Under England's householder permitted development rules you can usually add 3 metres at the back of an attached house, or 4 metres on a detached house, without a planning application, as long as the extension stays under 4 metres high and its eaves stay under 3 metres where it is within 2 metres of a boundary.
New fabric must meet Approved Document L (2021 edition incorporating 2023 amendments): walls 0.18, roof 0.15 and floor 0.18 W/m²K, windows 1.4 W/m²K or Band B. Under the simple route, new windows, doors and rooflights should not exceed 25% of the extension floor area plus any openings removed; more glass is possible with a whole-house calculation.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Newport Pagnell like to extend?
Commuter semis and detached houses make up much of Newport Pagnell, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a glazed rear extension in Newport Pagnell comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Glazed rear extensions near Newport Pagnell
Neighbouring places we cover include Milton Keynes (3.5 miles) and Bletchley (6.5 miles).
- Glazed rear extension in Milton Keynes
- Glazed rear extension in Bletchley
- Glazed rear extension in Kempston Hardwick
- Glazed rear extension in Kempston
- Glazed rear extension in Ampthill
Other work in Newport Pagnell:
FAQ
Glazed rear extension questions in Newport Pagnell
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Is there a limit on how much glass I can have?
In England the simple rule is 25% of the floor area plus openings removed; more is allowed with a calculation showing the house still meets Part L.
Is the site visit in Newport Pagnell free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
What postcode areas do you cover around Newport Pagnell?
Including MK16, and the surrounding Buckinghamshire area.
Do you handle building control in Newport Pagnell?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.