Local costs · North West · September 2026

How much does an extension cost in Bury?

A mid-range 25 m² single-storey extension in Bury costs about £59,000 to £72,500 including VAT, or £2,400 to £2,900 per m² at North West prices. Bury’s own published charge for building control on a 10 to 40 m² extension is £713 (full plans, including VAT): the 18th cheapest of the 91 councils we checked, 15% below the typical council (£840). The council’s published fee list is older or has no date, so check the current fee with the council before you budget. With a measured survey, building regulations drawings, a structural engineer, Bury’s own building control charge and a 15% contingency, plan for £72,000 to £91,500.

Work out your project in Bury

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Typical prices in Bury

Mid-range finish, North West prices, including VAT. For the extensions and the loft, the budget to plan for adds a measured survey, design and engineering fees, Bury’s own building control charge and a 15% contingency; for the kitchen and bathroom, a 15% contingency.
ProjectBuilding workBudget to plan for
Single-storey extension, 25 m²£59,000 to £72,500£72,000 to £91,500
Double-storey extension, 40 m²£85,000 to £107,000£102,000 to £133,000
Dormer loft conversion, 30 m²£43,500 to £54,000£53,500 to £69,500
Kitchen, medium£8,700 to £15,400£10,000 to £17,800
Bathroom refit£5,700 to £8,600£6,600 to £9,900

Building prices in the North West run about 7% below the UK average outside London. Kitchens and bathrooms vary less from place to place than extensions and lofts.

Building control fees in Bury

Bury’s own charges, including VAT (plan and inspection combined)
WorkCharge
Extension up to 10 m² (full plans)£634
Extension 10 to 40 m² (full plans)£713
Larger extension, 40 to 80 m² (full plans)£792
Extension 10 to 40 m² (building notice)£856
Loft conversion up to 40 m²£508
Garage conversion£396

Bury’s own published charge for building control on a 10 to 40 m² extension is £713 (full plans, including VAT): the 18th cheapest of the 91 councils we checked, 15% below the typical council (£840). The council’s published fee list is older or has no date, so check the current fee with the council before you budget. Source: Bury’s building control charges. The charges apply from 1 August 2023. The charges include VAT.

Check before relying on it: the schedule is older than 2025 or undated, so check it is still current.

Private building control firms (registered building control approvers) set their own prices and are often competitive, so it is worth asking one or two for a quote as well. See how Bury compares with every council we checked.

Notes on Bury’s schedule

Bury publishes its charges on its own page, in bands of up to 5 m², 5 to 10 m², 10 to 40 m² and 40 to 80 m². The up to 10 m² figure is the 5 to 10 m² charge: its printed price without VAT (£583.33) doesn’t match its price with VAT (£634), so we used the price with VAT. The loft figure is for a loft with a dormer; without one it is £428.

Planning

If your extension needs planning permission, a householder application in England costs £548. Many single-storey rear extensions are permitted development and need no application, and a lawful development certificate (£274) confirms it in writing.

Other councils in the North West

Building control for a 10 to 40 m² extension:

Questions people ask

How much does an extension cost in Bury?

A mid-range 25 m² single-storey extension in Bury costs about £59,000 to £72,500 including VAT for the building work, or £2,400 to £2,900 per m², based on North West prices reviewed in September 2026. With a measured survey, design, a structural engineer, Bury’s own building control charge and a 15% contingency, plan for £72,000 to £91,500.

How much is building control in Bury?

Bury’s own published charge for full plans approval of a 10 to 40 m² extension is £713 (including VAT). The charges apply from 1 August 2023.

How much does a loft conversion cost in Bury?

A mid-range 30 m² dormer loft conversion in Bury costs about £43,500 to £54,000 including VAT for the building work, and about £53,500 to £69,500 with fees, Bury’s own building control charge and a 15% contingency.

Before you get quotes

Work in Bury? Firm listings on Estiquote’s map of checked local firms open soon: see what you’ll need. Listing will be free while we build the map, with at least 30 days’ notice before any charge.