Bungalow rear extension in Chafford Hundred

How much does a bungalow rear extension cost in Chafford Hundred?

For Chafford Hundred we work from the East of England rate: £1,960–£3,180 per square metre of new floor, including VAT, standard specification. East of England prices run slightly above our West Midlands baseline; clay soils near trees are the main foundation variable.

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 bungalow rear extension in Chafford Hundred?

Planning for a bungalow rear extension in Chafford Hundred follows the English householder rules.

English permitted development (Class A) allows a single-storey rear extension of 3 metres on a terraced or semi-detached house and 4 metres on a detached one, measured from the original house, with a maximum height of 4 metres and eaves of no more than 3 metres within 2 metres of a boundary.

England also has the larger home extension route: a single-storey rear extension of up to 6 metres on an attached house or 8 metres on a detached house, after prior approval from the council. The council notifies your neighbours and has 42 days to decide; the fee is £249 (£310 for applications made from 8 December 2026). The route is not available on designated land such as conservation areas.

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 Chafford Hundred like to extend?

Chafford Hundred mixes Victorian terraces with 1930s semis, so both side returns and full-width kitchen extensions suit houses here.

How a bungalow rear extension in Chafford Hundred 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. 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. 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.

Bungalow rear extensions near Chafford Hundred

Neighbouring places we cover include South Ockendon (1.4 miles) and Grays (1.6 miles).

• Bungalow rear extension in South Ockendon
• Bungalow rear extension in Grays
• Bungalow rear extension in Swanscombe
• Bungalow rear extension in Tilbury
• Bungalow rear extension in Dartford

Other work in Chafford Hundred:

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

All rear extensions in Chafford Hundred