Talk to an MCIAT-chartered technologist about planning drawings, building regulations, loft conversions or extensions anywhere in the 33 London boroughs. We answer every enquiry within one working day, and a feasibility conversation costs nothing.
The address, the borough and whether the property is in a conservation area. Those three settle most of the first conversation, because the statutory fees are national — £548 for a householder application — while permitted development turns entirely on designation.
| What we need | Why it matters |
|---|---|
| The full address | which of the 33 boroughs decides it |
| Conservation area status | Class A side extensions and Class B are removed inside one |
| Article 4 direction | removes a named right street by street |
| House or flat | flats have no permitted development rights at all |
| Householder application fee | £548, statutory, the same in every borough |
| Lawful development certificate | £274, statutory |
Sources: the Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1 and Article 2(3); the Fees for Applications Regulations 2012 as amended, 2026 rates. Read at 1 September 2026. Conservation area boundaries are published on planning.data.gov.uk and on each council's own policies map; Article 4 registers are incomplete on the national platform.
Direct linesBest for drawings, surveys, deeds or a planning refusal notice you want a second opinion on. Attach what you have and we will read it before we reply.
[email protected]Best for a quick feasibility check: head height, Article 4, conservation area status, whether your project needs full planning or a Lawful Development Certificate.
020 7864 7245A five-step form covering property, service, drawings needed and contact details.
Get a free quote →Pick a slot that suits you. No obligation and no sales pressure, straight answers on your planning route.
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71–75 Shelton Street, London WC2H 9JQ. The studio is a correspondence and meeting address, not a drop-in office — site visits and measured surveys happen at your property, and everything else runs through the client portal.
Typical turnaround is 3–5 weeks from instruction to submission, and 98% of our applications are approved first time.
Not sure which service you need? The services overview lists every package, and the FAQ answers the questions we field most often. If your project is outside London, ask anyway — we take work across the South East.

Address, what you want to build, and any drawings, photos or a title plan you already hold. Nothing formal is needed at this stage.
We look up the borough's Local Plan position, any Article 4 direction, conservation area or listed status, and tell you whether the project is permitted development, a Lawful Development Certificate or a full planning application.
One number, in writing, covering the scope agreed. No hourly billing and no fee variation unless you change the brief.
A measured survey of the property, then existing and proposed drawings, followed by the building regulations package and structural calculations where the work needs them.
We submit through the Planning Portal, respond to the case officer, and discharge conditions after approval. You track it all in the client portal.
