Kitchen extensions with bedrooms above in Mangotsfield
For a kitchen extension with bedrooms above in Mangotsfield, the first questions are always the same: how big, which approvals, and what it will cost. This page answers all three for Gloucestershire.
Quick reference for homeowners in Mangotsfield.
- Postcode districts
- BS16
- County / area
- Gloucestershire, England
- Price region
- South West England
- Guide price
- £57,500–£78,000 (£2,060–£2,780 per m²), kitchen units and worktops priced separately
- Approval route
- It may be permitted development if it goes no more than 3 m beyond the original rear wall (counting any single-storey part) and stays 7 m from the rear boundary; otherwise it needs planning permission.
- Nearest towns
- Kingswood (2.4 miles), Stoke Gifford (2.6 miles), Keynsham (5.1 miles)
- Distance to Gloucester
- about 28.4 miles
- First visit
- Free, no obligation
About a kitchen extension with bedrooms above
A kitchen extension with bedrooms above is a two-storey extension designed so the ground floor becomes a larger, usually open-plan kitchen and dining space, with one or two bedrooms or a bathroom on the first floor. It is a natural fit for a two-storey rear extension. The key design issues are the steel beams that open up the house, glazing and ventilation.
Mangotsfield sits about 28.4 miles from Gloucester. Closer to home, Kingswood is 2.4 miles away and Stoke Gifford 2.6 miles.
What it costs in Mangotsfield
For budgeting in Mangotsfield, allow around £57,500–£78,000 (kitchen units and worktops priced separately) for a kitchen extension with bedrooms above with a 4 m × 3.5 m footprint on two floors (28 m² of new floor space). That's based on £2,060–£2,780 per m² including VAT for South West England. Design fees, structural calculations and approval fees are separate and listed on our prices page.
| Spec | Per m² | A 4 m × 3.5 m footprint on two floors (28 m² of new floor space) |
|---|---|---|
| Essential | £1,900–£2,560 per m² | £53,000–£71,500 |
| Standard | £2,060–£2,780 per m² | £57,500–£78,000 |
| Premium | £2,470–£3,340 per m² | £69,000–£93,500 |
Planning and building regulations in Mangotsfield
In England, a two-storey rear kitchen extension can be permitted development if it goes no more than 3 m beyond the rear wall of the original house and stays at least 7 m from the rear boundary, with matching materials and roof pitch, outside protected areas. No balconies are allowed. Deeper designs need planning permission, costing £548 (or £575 for applications made from 8 December 2026).
Approval in England: Householder planning application: £548 (or £575 for applications made from 8 December 2026). Lawful development certificate: £274 (about £288 for applications from 8 December 2026). Councils should decide householder applications within 8 weeks of validation.
Building regulations: Building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end.
Design points for Mangotsfield homes
Bedrooms over a kitchen
Bedrooms above need an escape window or a protected route to the stairs, plus good sound insulation from the kitchen below. We position the stairs, landing and bedroom doors so the new rooms connect naturally to the existing first floor.
Services and drainage
Sinks, dishwashers and an upstairs bathroom all need waste routes to the drains, often near where the extension goes. We check the drains early and plan soil stacks, gas and electrical supplies so the kitchen layout is not limited later.
How we'd run your project
Visit and first ideas
One of our team visits your house in Mangotsfield, checks the walls, roof and drains, and sketches out options with you.
Choose the approval route
Some designs fit permitted development, most need a householder application. We decide which applies in England before drawing in detail.
Price it properly
Once the engineer's calculations are in, we fix the build price in writing, with a clear list of what's included.
Finish and certify
Second fix, plastering and making good, then building control's final inspection and the completion paperwork.
Questions about kitchen extensions with bedrooms above in Mangotsfield
Which postcodes do you cover around Mangotsfield?
We cover Mangotsfield (BS16) and nearby places including Kingswood, Stoke Gifford and Keynsham, plus the rest of Gloucestershire. The first site visit is free.
Do I need planning permission for a kitchen extension with bedrooms above in Mangotsfield?
Mangotsfield is in England, so England planning rules apply. It may be permitted development if it goes no more than 3 m beyond the original rear wall (counting any single-storey part) and stays 7 m from the rear boundary; otherwise it needs planning permission. If in doubt, a lawful development certificate or a planning application gives you certainty before you build.
Who handles building regulations for a project in Mangotsfield?
We handle it as part of the project. What's needed in England: building regulations approval (full plans recommended) from the council or a registered building control approver, with a completion certificate at the end. We prepare the drawings and the engineer's calculations, book the inspections and pass you the completion paperwork at the end.
Is it cheaper to build a kitchen extension and bedrooms at the same time?
Yes, in most cases. Building both floors at once means one set of foundations, one roof, one scaffold and one set of approvals. Adding a first floor later means removing the original roof, possibly strengthening the foundations and disrupting the kitchen again. If you think you will need the bedroom, build it now.
Can I keep using my kitchen during the build?
For part of it. The new structure can be built while your existing kitchen stays in use, but when the rear wall is opened and the new kitchen is fitted there will be several weeks without one. We plan when this happens and help you set up a temporary kitchen elsewhere in the house.
Nearby
Close to Mangotsfield? We work across the area, including:
Other extensions in Mangotsfield
All two-storey extension services in Mangotsfield · Kitchen extensions with bedrooms above across Gloucestershire
Want a figure first? Try our guide price tool, then book a free visit to firm it up.