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Pimlico, Greater London

Rear extension planning drawings in Pimlico

For homes in Pimlico, a rear extension is often the simplest way to gain space without moving. Measured survey, design options, planning drawings and the application, handled for you. We take it from survey to completion certificate.

We cover Pimlico (SW1P, SW1 and SW1V) as part of our Greater London work. For Pimlico homes we start with a measured survey, then draw options before anything is submitted.

Book a free site visit

Tell us about the house and we'll call to arrange a free, no-obligation visit.

What do rear extension planning drawings cost in Pimlico?

As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.

Do you need planning permission for a rear extension in Pimlico?

Here is how the rules in England apply to a rear extension in Pimlico.

A two-storey rear extension can be permitted development in England only if it projects no more than 3 metres, stays at least 7 metres from the rear boundary, matches the existing roof pitch and has obscure-glazed upper side windows. In practice most double-storey rear extensions go through a householder planning application.

Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.

Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.

What are homes in Pimlico like to extend?

Period terraces in Pimlico sit alongside flats, and the difference matters: houses usually keep permitted development rights, while flats and maisonettes need planning permission for any rear extension.

How a rear extension in Pimlico comes together

  1. Look round and measure

    A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.

  2. Options and costs

    We draw layout options and price each one, so the budget shapes the design rather than surprising you later.

  3. Approvals

    Permitted development check, prior approval or planning application, then Building Regulations drawings and structural calculations, plus party wall notices where they apply.

  4. Build and sign-off

    We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.

Rear extension planning drawings near Pimlico

Close by, we work in Battersea, about 1.3 miles away, and Chelsea, about 1.4 miles away.

Other work in Pimlico:

All rear extensions in Pimlico

FAQ

Rear extension planning drawings questions in Pimlico

Can I live at home while the extension is built?

Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.

Do I need a party wall agreement?

In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.

Are the drawings mine?

You can use them to get other quotes, subject to the terms.

Do you handle building control in Pimlico?

Yes. We apply to the council or a registered building control approver and hand over the completion certificate.

Can you match the brick or stone on my Pimlico house?

We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.

What postcode areas do you cover around Pimlico?

Including SW1P, SW1 and SW1V, and the surrounding Greater London area.

Next step

See what your rear extension would cost

Get a guide price online in a couple of minutes, or book a free site visit and we'll measure up and talk you through the planning route.

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