← All questions
🛠️ Buildingbuildingislingtoncost

What are the costs for a house extension in Islington?

islingtonAsked 2026-03-1921 views1 answers130 total votes

The cost of a house extension in Islington typically ranges from £1,200 to £2,500 per square metre in 2026, depending on the complexity of the project and the materials used. Fo...

1 Answer
Sort by
130
Accepted
Helen CrossBuilding Specialist · 13 yrs
Accepted Answer2026-03-19

The cost of a house extension in Islington typically ranges from £1,200 to £2,500 per square metre in 2026, depending on the complexity of the project and the materials used. For example, a single-storey extension of 20 square metres could cost between £24,000 and £50,000. Factors influencing the price include design features, planning permissions, and whether you’re adding a kitchen, living space, or bathroom.

It’s essential to hire professionals who are accredited by relevant bodies, such as FMB (Federation of Master Builders) or NICEIC (National Inspection Council for Electrical Installation Contracting), to ensure quality and safety in your build. Also, for any gas installations, look for a Gas Safe registered engineer.

Given Islington's unique architectural landscape, it's wise to also consider local regulations regarding building permits. Connecting with local builders who are familiar with these can streamline your project.

Looking for professionals in your area? Find vetted providers on TradeMatch.

Need a Building in islington?

Get 3–5 free quotes from verified, insured professionals. No obligation, no spam.

Get Free Quotes →