Spalding, Lincolnshire
Glazed rear extension in Spalding
Full-height glass, slim frames and big rooflights for the most open rear room. We design, get the approvals for and build glazed and glass-box rear extensions in Spalding and the surrounding area, with one contract from the first survey to building control sign-off.
We cover Spalding (PE11) as part of our Lincolnshire work. Glass-led rear extensions in Spalding are planned around which way the garden faces, because that decides the glass specification.
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 Spalding?
A glazed rear extension in Spalding is priced at £2,720–£4,660 per square metre including VAT as a guide, before kitchen fit-out and fees. East Midlands prices sit a little below our West Midlands baseline.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4 m deep (12 m²) | £32,500–£56,000 |
| 4 m wide × 6 m deep (24 m²) | £65,000–£111,500 |
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 Spalding?
Whether your glazed rear extension in Spalding needs a planning application depends on its size, your house and any local restrictions.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part 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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Spalding like to extend?
Red-brick terraces and semis are typical of Spalding. Coal-mining legacy areas in parts of the East Midlands can need a Coal Authority check before foundations are designed.
How a glazed rear extension in Spalding comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Approvals
Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.
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 Spalding
Close by, we work in Bourne, about 9.8 miles away, and Market Deeping, about 10.3 miles away.
- Glazed rear extension in Bourne
- Glazed rear extension in Market Deeping
- Glazed rear extension in Boston
- Glazed rear extension in Peterborough
- Glazed rear extension in Wisbech
Other work in Spalding:
FAQ
Glazed rear extension questions in Spalding
Is the site visit in Spalding free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Sliding or bifold doors?
Sliders give bigger panes and slimmer sightlines; bifolds open the whole width. Our guide compares them.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do you handle building control in Spalding?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.