Porch extensions across Palmers Green
Our design and build teams take on porch extensions in Palmers Green, from the first measured survey through planning and building control to the finished room.
- Guide price in Palmers GreenFrom £5,200 inc VAT
- PlanningUsually permitted development under 3 m²
- Build time2–4 weeks on site
- Postcode districtsN11, N13, N14, N21, N22
How much does a porch extension cost in Palmers Green?
For Palmers Green we adjust our national guide rates by ×1.3, the factor we use for London. Figures include VAT; your written quote after the survey replaces them.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Small brick or glazed porch, up to 3 m² | £5,200 – £8,450 |
| Standard | Brick porch with tiled roof and composite door | £7,800 – £12,350 |
| Premium | Larger porch with WC or oak frame and premium glazing | £11,700 – £19,500 |
For a figure based on your own dimensions, use our guide-price tool.
Will the council need to approve it?
In England a porch is usually permitted development if its ground floor area is no more than 3 m² measured externally, no part is over 3 m high, and no part is within 2 m of a boundary next to a road.
Before any drawing is finalised we check whether the house is listed, in a conservation area or subject to an Article 4 direction.
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.
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).
When a porch extension makes sense
- Front doors that open straight into a living room
- Homes wanting better kerb appeal
- Busy hallways with no storage
Extensions in and around Palmers Green
Our survey diary covers Palmers Green, including N11, N13, N14, N21, N22. Nearby, we also take on projects in Wood Green (1 mile), Tottenham (2 miles), Friern Barnet (2 miles), Edmonton (2 miles).
Just over the Hertfordshire border, Potters Bar is about 6 miles away. Across London, terraced houses with narrow side returns and tight access are the norm, which shapes everything from party wall notices to how materials reach the back garden.
From first visit to completion
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
We visit your Palmers Green home, measure up, talk through what you want and check the planning position.
Design and approvals
Drawings are prepared and agreed with you, then submitted for the right planning route and building regulations approval.
Fixed written price
You receive a written, itemised price and programme. Nothing starts until you are happy with it.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Your questions about a porch extension in Palmers Green
Can I see a price before committing to anything?
Yes. The guide prices on this page are adjusted for Palmers Green, and the guide-price tool gives a range for your own size. After the survey you get a written price before anything is agreed.
How long does a porch extension take to build in Palmers Green?
On site, typically 2 to 4 weeks once approvals are in place. Before that, allow 2–8 weeks design and approvals.
Do you cover all of Palmers Green?
Yes. We cover Palmers Green and the surrounding parts of Greater London. Site visits are free and there is no obligation.
Do I need planning permission for a porch?
In England a porch is usually permitted development if its ground floor area is no more than 3 m² (measured externally), no part is higher than 3 m, and no part is within 2 m of a boundary next to a highway. Other nations have similar but separate rules.
How much does a porch cost?
Our guide range is about £5,200 to £19,500 including VAT, depending on size, materials and whether it includes a WC.
Book a free site visit in Palmers Green
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.