Croydon Council (London Borough of Croydon)
Builders in Croydon
Extensions, loft conversions and renovations in Croydon, from a fully insured London building team that understands local planning.

Homes in Croydon
Croydon has a wide range of housing, from Victorian terraces in Thornton Heath and Norbury to extensive 1930s semis and larger suburban houses in Purley, Sanderstead and Coulsdon.
What we build here
Rear and side extensions, loft conversions on 1930s semis, and renovations of larger detached homes.
Planning and conservation in Croydon
Planning and building control in this area are handled by Croydon Council (London Borough of Croydon). Croydon has a number of conservation areas and local heritage areas, and its southern edges include Green Belt land where development is tightly controlled. Before you design, check whether your property is in a conservation area, is listed or is covered by an Article 4 direction; these change what you can build without permission. Our guide to permitted development in London explains the national rules, and loft conversion regulations covers roof works.
Croydon's suburban plot sizes mean many extensions can use permitted development, subject to the usual checks.
Typical building costs in Croydon
Building costs in Croydon typically follow outer London rates of about £2,500 to £3,500 per m² for standard residential work, with high specifications and tricky access at the upper end or above. Budget on top for professional fees (about 15%), consents and contingency (8–15%) and VAT at 20% on extensions and renovations. These are indicative industry ranges for 2026, not a quote; see our London cost guide or request a fixed quote.
Neighbourhoods we cover in Croydon
Questions about building in Croydon
Do you cover all of Croydon?
Yes. We work throughout Croydon, including South Croydon, Purley, Coulsdon, Norbury, Thornton Heath, Sanderstead, Selsdon, Addiscombe, and across the rest of London.
Do I need planning permission for an extension in Croydon?
It depends on your property. Houses outside conservation areas may be able to use permitted development, while flats, conservation areas and Article 4 directions usually mean an application to Croydon Council (London Borough of Croydon). A Lawful Development Certificate gives certainty.
How do I get a quote?
Send the form with your postcode and project details and we will reply by email, usually within one working day.
Nearby: Ealing · Hammersmith & Fulham · Camden · Islington · Wandsworth · all areas
Enquiries across London
Get a quote for your Croydon project
Tell us about your extension, loft or renovation. We cover every London borough from our office at 119 Uxbridge Road, W7 3ST.
- Free, no-obligation quotes
- Fully insured in all building aspects
- Planning, building control and party walls explained