Advice for North London homeowners
Helpful, plain-English guides on loft conversions, extensions and renovations - covering planning permission, real 2026 costs, timelines and how to choose a builder you can trust. Written by the Kev Construct team from real projects across Edgware, Barnet, Enfield and Watford.
How much does a loft conversion cost in London in 2026?
A London loft conversion typically costs £40,000 to £70,000 in 2026 - here is what your money buys and what pushes the price up.
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Do you need planning permission for a loft conversion?
Most rear and dormer loft conversions are permitted development, so no planning permission is needed - but there are key exceptions.
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Dormer vs mansard vs hip-to-gable: which loft conversion is right for you?
Compare the three main loft types by space, planning and 2026 cost, so you can see which one fits your North London home.
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How long does a loft conversion take?
Most loft conversions take about 6 to 8 weeks on site - here is a week-by-week timeline and what can affect it.
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Will a loft conversion add value to your home?
A well-built loft conversion can add around 15 to 20 percent to a North London home - see what drives the uplift.
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House extension cost guide: single vs double storey (2026)
What a single or double-storey extension really costs in North London in 2026, and how the numbers compare.
Read articleDo you need planning permission for an extension?
When an extension needs full planning permission, when it does not, and what building control still requires.
Read articlePermitted development: what you can build without planning permission
A clear guide to permitted development rights and the limits that let you build without a planning application.
Read articleRear vs side-return extension: pros, cons and costs
How rear and side-return extensions differ in space, light and cost, and which suits your London home.
Read articleHow to choose a builder in North London: a 10-point checklist
A practical 10-point checklist for choosing a builder you can trust - from reviews and guarantees to fixed pricing.
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