A porch is a small enclosed structure built over a front or side door, adding a weatherproof entrance space for coats, shoes and deliveries, improving security and reducing draughts and heat loss from the house.
For a homeowner in Amersham, planning a new porch tends to begin with two questions: what will it cost, and how disruptive will it be? Our guide range is £3,900–£9,000 including VAT, and a typical job runs to 1–2 weeks on site. Both numbers firm up once we have seen the property, measured up and agreed exactly what is included.
- Guide price
- £3,900–£9,000 inc VAT
- Time on site
- 1–2 weeks on site
- Postcodes
- HP6 and HP7
- Planning rules
- England
- Local area
- Buckinghamshire
- Survey
- Free, with a written quote
How much does a new porch cost in Amersham?
Every figure below is a guide for a new porch in Amersham, inclusive of VAT. Regional pricing for the South East works out about 12% above the national guide, and the overall span is £3,900–£9,000. The survey costs you nothing, and after it we commit to a firm price for your specification in writing.
| Type of job | What it usually involves | Guide in Amersham |
|---|---|---|
| Canopy or open porch | A tiled or lead canopy, or an open timber porch, over an existing door. | £1,100–£3,400 |
| uPVC or aluminium porch | A glazed enclosed porch on a brick dwarf wall with a new door. | £3,400–£6,200 |
| Brick-built porch | A fully brick-built porch matching the house, with tiled roof, windows and lighting. | £6,200–£11,000 |
The main things that change the figure:
- Construction: uPVC, aluminium, brick or timber frame
- Roof type and how it meets the house
- Door and window specification
- Drains, meters or paths that need moving
What’s included?
- Foundations and a concrete base with damp-proof membrane
- Brick dwarf walls or full brick walls to match the house
- Windows and an external door in your chosen style
- Guttering and a downpipe connected to drainage
- Electrics for lighting or sockets by a qualified electrician
- Plastering, sills, skirting and flooring ready to use
Local housing and a new porch
Buckinghamshire runs from Chiltern villages of brick and flint, through Metroland interwar semis around Amersham and Chesham, to Victorian terraces in High Wycombe and Aylesbury. Milton Keynes adds estates built from the 1970s onwards in brick, render and timber frame, and new housing continues to spread around its edges.
The Chiltern hills are more exposed than the vale below, and clay-with-flints soils make drainage design and footing depth worth checking early.
Building traditions across Buckinghamshire also raise conservation and planning questions, so we check those for a new porch in Amersham at the survey stage.
Permissions for a new porch in Amersham
Amersham is in England, so the planning and building rules set out below are the ones that apply. We confirm the details with the council before we quote.
In England, a porch is usually permitted development if its ground floor area is no more than 3 m², no part is higher than 3 m, and it is at least 2 m from any boundary with a road.
Small porches at ground level are usually exempt from Building Regulations if the front door stays in place between porch and house, but safety glazing and any electrics must still comply.
Rules change and every property is different, so we check the planning history and constraints for your address before we quote.
The four stages
A visit to your home
A free survey comes first. It gives us what we need to price a new porch properly, including dimensions, existing materials and access for deliveries, and gives you the chance to ask anything you like.
Written quote
Next you receive a written quote with a fixed price for the agreed specification. It lists what is included, what is not, and how payments are staged, so you can compare it properly.
Plan and prepare
We handle the paperwork side: checking whether planning permission or building control approval is needed, submitting applications where they are, and scheduling the trades and materials around your dates.
Build and hand over
During the work we protect the areas around it and tidy up at the end of each day. Once complete, we check the finish, remove our materials and hand over paperwork such as building control sign-off where it applies.
How we work
Frequently asked questions
Does a porch need building regulations approval?
Small porches are often exempt from building regulations, provided the existing front door stays between the porch and the house and the floor area is modest. Glazing must still be safety glass and any electrics must be certified. If you remove the front door so the porch becomes part of the house, it is treated like an extension. Rules vary between UK nations, so we confirm what applies.
Do you cover Chesham, Chalfont Saint Peter and Gerrards Cross?
Yes. As well as Amersham, we cover Chesham, Chalfont Saint Peter and Gerrards Cross and the rest of Buckinghamshire. Our coverage is UK-wide, so the process is the same wherever you are: a free site survey, a quote in writing that fixes the price for the agreed scope, and one point of contact while the work is planned and carried out.
Do I need planning permission for a porch?
Whether a porch needs planning permission depends on its size and height, how close it is to a road, your home's location, whether it is listed or in a conservation area, and which UK nation you live in. In England, a porch is usually permitted development if its ground floor area is no more than 3m², no part is over 3m high and it is at least 2m from a boundary with a road. We check before quoting.
What style of porch suits my house?
The right porch style usually echoes your house. Brick-built porches with a tiled roof suit traditional brick homes, while uPVC or aluminium porches suit newer houses and give more light. Matching the roof pitch, brick colour and window style to the house helps the porch look as if it has always been there. We bring photos and options to the survey.
Which postcodes in Amersham do you cover?
We cover HP6 and HP7, along with the rest of Buckinghamshire. If your postcode is not listed, get in touch anyway: our coverage is UK-wide, and we can usually arrange a survey wherever you live. Enter your postcode in the guide-price tool or contact form and we will confirm.
Nearby towns
From HP6 and HP7 to the edges of Amersham and on into Chesham, Chalfont Saint Peter and Gerrards Cross, we can arrange a site visit and a written quote for your project, planned around dates that work for you.

