Orangery extensions in Prescot: design, approvals and build
Prescot homeowners can use us for the whole orangery extension project: survey, design, planning or permitted development checks, building regulations and the build itself.
- Guide price in PrescotFrom £28,500 inc VAT
- PlanningSame limits as single-storey rear; glazing checked for building regs
- Build time10–16 weeks on site
- Postcode districtsL28, L34, L35, L36, WA10

Planning rules that apply in Prescot
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.
Homes in conservation areas, national parks, National Landscapes (formerly AONBs), the Broads and World Heritage Sites have tighter rules, so we always check the property's status and planning history before design starts.
Building over or within 3 m of a public sewer needs the water company's consent, usually through a build-over agreement, before the foundations go in.
Applications are decided by the local planning authority (your district, borough or unitary council).
Extensions in and around Prescot
Our survey diary covers Prescot, including L28, L34, L35, L36, WA10. The same team covers Huyton (2 miles), St Helens (3 miles), Halewood (5 miles), Kirkby (5 miles), all within easy reach.
The North West has a high share of Victorian and Edwardian terraces with rear yards and outriggers, plus large areas of inter-war semis in the suburbs.
Orangery extension prices in Prescot
Labour and material costs vary across the UK, so for Prescot we use our North West England factor (×0.95). The ranges include VAT and exclude design, structural and council fees.
Typical rates in Prescot: £2,280 to £4,280 per m² including VAT, depending on specification.
| Size | Essential | Standard | Premium |
|---|---|---|---|
| 3 m × 4 m 12 m² | £28,500 – £34,500 | £31,500 – £40,000 | £38,500 – £51,500 |
| 4 m × 4 m 16 m² | £36,000 – £44,500 | £42,500 – £53,500 | £51,500 – £68,500 |
| 4 m × 6 m 24 m² | £54,500 – £66,500 | £63,500 – £80,000 | £77,500 – £103,000 |
Want a range for your exact size? The guide-price tool takes about a minute.
Is an orangery extension right for your house?
- Period and detached houses with a garden view
- Those who want daylight without overheating
- Homeowners replacing an older conservatory
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.
How the project works
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
First, a site visit: we look at the house, garden, access and drains and listen to what you need.
Design and approvals
We draw the design, agree it with you and handle planning or permitted development checks and building regulations.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
The build is managed from start to finish, inspected at each stage and signed off on completion.
Orangery extension questions answered
Will my neighbours in Prescot 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 you cover all of Prescot?
Yes. We cover Prescot and the surrounding parts of Merseyside. Site visits are free and there is no obligation.
How long does an orangery extension take to build in Prescot?
On site, typically 10 to 16 weeks once approvals are in place. Before that, allow 6–12 weeks design and approvals.
What is the difference between an orangery and a conservatory?
An orangery has a solid roof perimeter with a central lantern and more solid wall, so it is warmer and more like a room. A conservatory is mostly glass. Building regulations treat a heated orangery joined to the house as an extension.
How much does an orangery cost?
Our guide range is about £2,280 to £4,280 per m² including VAT, so a 16 m² standard-spec orangery is typically £42,500 to £53,500 in Prescot.
Book a free site visit in Prescot
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.