Islington Council (London Borough of Islington)
Builders in Islington
Extensions, loft conversions and renovations in Islington, from a fully insured London building team that understands local planning.
Homes in Islington
Islington is one of London's densest boroughs, with Georgian and early Victorian squares and terraces in Barnsbury, Canonbury and Angel, and Victorian terraces further north, many converted into flats.
What we build here
Rear and side-return extensions, sensitive refurbishments of period houses, and lower-ground-floor conversions.
Planning and conservation in Islington
Planning and building control in this area are handled by Islington Council (London Borough of Islington). Islington has numerous conservation areas and many listed terraces, where roof profiles, front elevations and original windows are usually protected. 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.
Expect close attention to traditional materials, such as London stock brick and timber sash windows, in planning decisions.
Typical building costs in Islington
As a central London borough, Islington typically sits in the central range of about £3,500 to £4,500+ per m² for residential work, a 25–40% premium over outer London. 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 Islington
Questions about building in Islington
Do you cover all of Islington?
Yes. We work throughout Islington, including Highbury, Canonbury, Barnsbury, Angel, Holloway, Archway, Tufnell Park, Stroud Green, and across the rest of London.
Do I need planning permission for an extension in Islington?
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 Islington Council (London Borough of Islington). 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 · Wandsworth · Lambeth · all areas
Enquiries across London
Get a quote for your Islington 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