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.
Anyone planning a new porch in Eltham wants three things: a clear price, a realistic timetable and a tidy job. We publish a guide of £4,600–£10,500 including VAT for London up front, explain that work normally takes 1–2 weeks on site, and confirm both in writing after a free survey of your property.
- Guide price
- £4,600–£10,500 inc VAT
- Time on site
- 1–2 weeks on site
- Postcodes
- SE2, SE9, SE18 and SE28
- Planning rules
- England
- Local area
- Greater London
- Survey
- Free, with a written quote
Porches prices in Eltham
To help you plan, we show what a new porch typically costs in Eltham instead of holding figures back for a sales call. The range is £4,600–£10,500 with VAT, using rates in London that are about 30% above the national guide. A free survey then fixes your actual price.
| Type of job | What it usually involves | Guide in Eltham |
|---|---|---|
| Canopy or open porch | A tiled or lead canopy, or an open timber porch, over an existing door. | £1,300–£3,900 |
| uPVC or aluminium porch | A glazed enclosed porch on a brick dwarf wall with a new door. | £3,900–£7,200 |
| Brick-built porch | A fully brick-built porch matching the house, with tiled roof, windows and lighting. | £7,200–£13,000 |
Expect these to shape the final quote:
- 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?
- Brick dwarf walls or full brick walls to match the house
- Roof tiled or covered to suit the house, with flashing
- 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
Homes in London
London's housing is dominated by Victorian and Edwardian terraces, often in yellow London stock brick, with Georgian terraces in central districts and mansion blocks across many inner areas. Outer boroughs have large belts of interwar semis, and there are extensive post-war council estates. Many houses have been split into flats, and conservation areas are widespread.
Terraces suit side-return extensions and rear dormer loft conversions; interwar semis commonly take hip-to-gable lofts. Shared party walls, restricted parking and conservation rules often shape the plans and the programme.
These patterns matter for a new porch: older walls, roofs and floors in Eltham can need different materials or extra preparation compared with newer homes.
Planning and building rules in Eltham
Eltham 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.
How does the job run?
Survey and measure
Book a visit and we'll come to you. The survey covers measurements, the state of what's there now and any obvious constraints, so the price that follows is based on your actual home, not an average.
Quote in writing
We turn the survey notes into a written quote. The price is fixed for the specification we agree, and the document sets out materials, scope and payment stages in plain language.
Getting ready
Once you accept, we agree start dates, order materials and deal with any planning, building control or neighbour notices the job needs. You'll know who is coming and when before work begins.
The work itself
The job proceeds in the order set out in the programme, with dust and debris kept under control. Finally we tidy away, inspect the work together and pass the finished project over to you with its paperwork.
What you can expect from us
Porches in Eltham: questions
How long does it take to build a porch?
Building a porch usually takes one to two weeks on site. Foundations and base go in first, then the brickwork, roof, windows and door. uPVC and aluminium porches are often quicker because the frames are made off-site, while brick-built porches with a tiled roof take a little longer. Frames and doors are made to measure, so allow a few weeks' lead time before starting.
Can you combine a new porch with other work?
Yes. Because we manage several trades under one contract, we can plan a new porch alongside other work on your Eltham home, such as new windows with rendering, or a kitchen refit with an extension. Combining jobs can reduce repeat set-up such as scaffolding, skips and access, and every element is listed and priced in the same written quote.
Who do I deal with during the job?
One point of contact manages your project from survey to handover. They schedule the trades working under our contract, keep you updated on progress, and are the person to call with any question. You don't need to coordinate builders, electricians or decorators separately, because that is part of what we do.
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 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.
Near Eltham
Coverage for Eltham spans SE2, SE9, SE18 and SE28. Close by, Blackheath, Welling and Catford are covered too, and the rest of our UK-wide area follows the same survey-then-quote process from start to finish.

