Frequently Asked Questions

How long will the project take?

Depending on the project type. For extensions, lofts and house refurbishments it is usually 6-8 weeks. Basement conversion takes around 4-6 months. We also reserve 3-4 weeks time before the project is started to prepare all required paperwork and management.

How much will it cost?

Each project is individually priced according to our site survey and plans. You can expect to pay around £20k-50k for regular extension, £20k-35k for regular loft. Basement price can vary a lot but generally it is £60k+ for basement conversion and £120k+ for new basement; both options are priced according to 40m2 basements.

What documentation do I need?

We will deal with most paperwork required. This includes Planning Permission, Building Notice, Architectural Plans, Structural Plans and Calculations. You will need to get Party Wall Agreement if necessary but we will assist you with it if needed.

Do I have to move out?

Usually you do not have to move out. If it is extension, loft or basement we generally split the work area from habitable area and make sure to minimize any disruption. However if it is full house refurbishment in most cases you would have to move out for some period of time.

London House Extension
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© Home Shape Ltd trading as London House Extension, Company Number: 8118027 VAT: 142 7996 78, Address: Home Shape Ltd, 53 Home Farm Close, Tadworth, KT205PQ, Tel: 020 8133 3610, 078 7749 7598 Email: