Rear extension planning drawings in Yarm

What do rear extension planning drawings cost in Yarm?

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 Yarm?

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

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 Yarm like to extend?

Terraces and semis are typical around Yarm. On terraces a single-storey rear extension across the back yard is usually the practical choice; semis often have room for more.

How a rear extension in Yarm comes together

1. Survey visit

   We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.

2. Design and guide price

   Two or three layout options with a guide price for each, so you choose the design knowing what it costs.

3. Planning and regulations

   We take the design through the right planning route, then produce the construction drawings and engineer's calculations for building control.

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 Yarm

Close by, we work in Ingleby Barwick, about 2.2 miles away, and Thornaby-on-Tees, about 3.1 miles away.

• Rear extension planning drawings in Ingleby Barwick
• Rear extension planning drawings in Thornaby-on-Tees
• Rear extension planning drawings in Stockton-on-Tees
• Rear extension planning drawings in Billingham
• Rear extension planning drawings in Middlesbrough

Other work in Yarm:

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

All rear extensions in Yarm