Bungalow extensions in Cheltenham: design, approvals and build
We design and build bungalow extensions for houses in Cheltenham, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in CheltenhamFrom £26,500 inc VAT
- PlanningSingle storey often permitted development
- Build time10–18 weeks on site
- Postcode districtsGL3, GL50, GL51, GL52, GL53

Extensions in and around Cheltenham
Site visits are available across Cheltenham (GL3, GL50, GL51, GL52, GL53). Neighbouring towns we cover include Tewkesbury (7 miles), Gloucester (7 miles), Stroud (12 miles), Cirencester (13 miles).
Just over the Worcestershire border, Evesham is about 14 miles away. South West homes range from terraced streets in the cities to stone cottages and bungalows in the countryside, and conservation areas are common in historic centres.
When a bungalow extension makes sense
- Families wanting more space on one floor
- Homeowners planning for later life
- Bungalows on larger plots
How much does a bungalow extension cost in Cheltenham?
Labour and material costs vary across the UK, so for Cheltenham we use our South West England factor (×1.02). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Cheltenham: £1,780 to £3,470 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 5 m 15 m² | £26,500 – £32,500 | £31,000 – £41,000 | £39,500 – £52,500 |
| 4 m × 6 m 24 m² | £42,500 – £51,500 | £50,000 – £65,000 | £63,500 – £83,500 |
| L-shape 35 m² | £62,000 – £75,000 | £73,000 – £95,000 | £92,500 – £121,500 |
For a figure based on your own dimensions, use our guide-price tool.
Will the council need to approve it?
In England a single-storey extension to a bungalow follows the normal permitted development limits (3 m or 4 m, or 6 m and 8 m through prior approval). Adding a first floor always needs planning permission.
The planning position for a specific Cheltenham address depends on its history and any designations, which is why we check it at the first visit.
Building regulations approval is separate from planning. In England you can use the council's building control team or a registered building control approver; a full plans application gets the drawings checked before work starts, and the inspector signs the work off with a completion certificate.
Applications are decided by the local planning authority (your district, borough or unitary council).
What happens next
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
A designer visits, takes measurements and photos, and discusses layouts, budget and timing with you.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
With the design and specification agreed, you get a fixed written price and a start date.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Common questions in Cheltenham
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Cheltenham, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Will my neighbours in Cheltenham be involved?
If a planning application or prior approval is needed, the council notifies neighbours. If the work is on or near a shared boundary, party wall notices may also be needed.
Do I need building regulations approval in Cheltenham?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
How much does a bungalow extension cost?
Our guide range for single-storey work is about £1,780 to £3,470 per m² including VAT. Going upwards is priced after a structural survey.
Can I extend a bungalow without planning permission?
In England a single-storey rear extension to a bungalow follows the same permitted development limits as a house: 3 m or 4 m, or up to 6 m or 8 m through prior approval. Adding a storey always needs planning permission.
Book a free site visit in Cheltenham
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.