Rear extension planning drawings in Bexhill-on-Sea

What do rear extension planning drawings cost in Bexhill-on-Sea?

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. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.

Do you need planning permission for a rear extension in Bexhill-on-Sea?

Here is how the rules in England apply to a rear extension in Bexhill-on-Sea.

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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.

What are homes in Bexhill-on-Sea like to extend?

Bexhill-on-Sea has a mix of Victorian terraces near the centre and larger Edwardian and inter-war houses further out. Clay soils across much of the South East mean deeper foundations near trees, which we plan for at the survey. Rear extension applications in East Sussex are householder applications, which councils aim to decide within about eight weeks.

How a rear extension in Bexhill-on-Sea 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. Paperwork handled

   Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.

4. Written price, then build

   Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.

Rear extension planning drawings near Bexhill-on-Sea

Neighbouring places we cover include St Leonards-on-Sea (3.3 miles) and Hastings (4.8 miles).

• Rear extension planning drawings in St Leonards-on-Sea
• Rear extension planning drawings in Hastings
• Rear extension planning drawings in Hailsham
• Rear extension planning drawings in Eastbourne
• Rear extension planning drawings in Seaford

Other work in Bexhill-on-Sea:

• Single-storey rear extension
• Two-storey rear extension
• Kitchen-diner rear extension
• Side return extension
• Wraparound extension
• Glazed rear extension

All rear extensions in Bexhill-on-Sea