Exp|Arc
ContactGet a quote

Tell us what you want to build.

Share a few details and we'll confirm your likely planning route and a fixed package price. No obligation, and no jargon.

We usually reply within one working day.

Office

167–169 Great Portland Street, 5th Floor
London W1W 5PF

Hours

Monday to Friday, 9am – 6pm

Prefer to talk it through?

Call and we'll confirm your route.

A quick call is often the fastest way to understand your options. We'll tell you the likely planning route and what's involved.

What happens next
01We review your enquiry and confirm the right planning route.
02We outline what's included in your fixed package.
03You get clear next steps and a price, with no obligation.
Faster routeIf you want a price

Prefer a fixed quote?

This form is for questions. If you already know roughly what you want to build, the quote form gathers the few extra details we need and comes back with your planning route and a fixed price, usually the same working day.

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Or read first: FAQ · Pricing · How it works · Advice articles

Getting a useful answerWhat to include

When to call rather than write

Call if you have a deadline, an exchange date, an enforcement letter or a planning refusal to discuss, because those are faster to untangle by phone. Write if you want something checked properly: send the postcode, the property type, what you want to build and roughly when, and you will get a considered answer rather than a holding reply.

Office hours are Monday to Friday, 9am to 6pm. Messages outside those hours are answered the next working day. Registered office: 167-169 Great Portland Street, 5th Floor, London W1W 5PF. Exp-Arc Limited, company no. 16980239.