Orangery extensions across March
We design and build orangery extensions for houses in March, with a written price once the survey and design are done and one point of contact throughout.
- Guide price in MarchFrom £31,500 inc VAT
- PlanningSame limits as single-storey rear; glazing checked for building regs
- Build time10–16 weeks on site
- Postcode districtsPE15
Will the council need to approve it?
In England a glazed or orangery-style extension follows the same size limits as any single-storey rear extension: 3 m or 4 m without an application, or up to 6 m and 8 m through prior approval. Building regulations limit glazing to about a quarter of the new floor area plus the openings it replaces, unless whole-house calculations show the design still performs.
In a conservation area, national park, National Landscape, the Broads or a World Heritage Site the permitted development limits are tighter (no side or two-storey extensions without an application). Listed homes need listed building consent, and if permitted development rights have been removed, any extension needs an application.
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.
If the work involves a shared wall, building on the boundary, or digging foundations within 3 m (sometimes 6 m) of a neighbour's building, the Party Wall etc. Act 1996 applies and notice must be served before work starts: two months for work to a party wall, one month for new walls on the boundary and for excavations.
Applications are decided by the local planning authority (your district, borough or unitary council).
Guide prices for March
For March we adjust our national guide rates by ×1.06, the factor we use for East of England. Figures include VAT; your written quote after the survey replaces them.
Typical rates in March: £2,540 to £4,770 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £31,500 – £38,500 | £35,500 – £45,000 | £43,000 – £57,500 |
| 4 m × 4 m 16 m² | £40,500 – £49,500 | £47,000 – £59,500 | £57,500 – £76,500 |
| 4 m × 6 m 24 m² | £61,000 – £74,000 | £71,000 – £89,500 | £86,000 – £114,500 |
For a figure based on your own dimensions, use our guide-price tool.
Local to March
Across PE15, we can visit, measure and advise. The same team covers Wisbech (8 miles), Ely (13 miles), Peterborough (14 miles), Huntingdon (19 miles), all within easy reach.
King's Lynn, in Norfolk, is roughly 19 miles from March and also on our list. The East of England mixes market-town terraces, inter-war semis and modern estates. Clay soils are common in parts of the region, which can affect foundation design.
What we take care of
- Foundations, walls and insulated perimeter roof
- Design of piers, roof perimeter and lantern proportions
- Thermal calculations where glazing is generous
- Aluminium or timber lantern and full-height glazing
- Heating sized for the glass area
The lantern-to-roof ratio sets the character. A wider solid perimeter gives a calmer, more room-like space and hides downlights and speakers; a bigger lantern feels brighter but needs more care against summer heat.
Our process, step by step
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
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
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 March
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for March, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
Do you cover all of March?
Yes. We cover March and the surrounding parts of Cambridgeshire. Site visits are free and there is no obligation.
Do I need building regulations approval in March?
Yes. Almost every extension needs it, whatever the planning route. We prepare the drawings and book the inspections.
Does an orangery need planning permission?
It follows the same size limits as other single-storey extensions. In England many fit within permitted development or prior approval; others need an application.
Will an orangery be too hot in summer?
Not if it is designed with solar-control glass, a solid perimeter and ventilation. We size the lantern and opening vents with that in mind.
Book a free site visit in March
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.