MCIAT chartered architectural drawings for planning permission, building regulations, loft conversions and house extensions across London — delivered in days, quoted as a fixed fee, and revised free until your council decides.
From first sketch to approved stamp — planning application drawings, building regulations packages and structural calculations produced in-house by chartered technologists.

House extension plans for side return, rear, wraparound, double-storey and basement projects — drawn to maximise footprint within your borough's tolerances, with daylight and neighbour impact considered before the council does.
Existing and proposed plans, elevations and sections — formatted precisely to your borough's validation checklist.
Full-plans packages with structural calculations coordinated in-house — one team, no handoffs between designer and engineer.
Lawful development certificates, listed building consent, flat & HMO conversions, change of use, retrospective applications and appeals.
Every price is the total you pay, with the measured survey, drawings, council submission and free revisions until your council decides. Council planning fees are separate and paid to the council.
| Service | Total you pay |
|---|---|
| Planning application drawings (householder) | From £825 inc survey (£625 if you supply measured drawings) |
| Single-storey rear extension | From £765 inc survey (£565 if you supply measured drawings) |
| Side return extension | From £825 inc survey (£625 if you supply measured drawings) |
| Two-storey extension (planning drawings) | From £1,115 inc survey (£915 if you supply measured drawings) |
| Rear dormer loft conversion | From £765 inc survey (£565 if you supply measured drawings) |
| Mansard loft conversion (planning) | From £945 inc survey (£745 if you supply measured drawings) |
| Lawful development certificate drawings | From £715 inc survey (£515 if you supply measured drawings) |
| Building regulations drawings | From £825 inc survey (£625 if you supply measured drawings) |
From Camden's conservation officers to Croydon's validation checklists — we submit planning permission applications across London every week, so yours lands exactly how your council expects it.
Pick your project, tell us where it is, and an accurate fixed quote lands in your inbox within 60 minutes — with a free planning appraisal of your property's potential. No obligation, no pressure.
Watch how it flows — from your 60-second quote to the council's decision. You'll always know exactly where your project stands via your online portal.
Tell us the address and what you want to build. We check borough constraints the same day.
Choose a package. The price we quote is the price you pay — no hourly surprises.
We measure your property with laser precision, so drawings match reality millimetre for millimetre.
Existing and proposed planning drawings delivered to your portal, with a council-ready review before submission.
We submit, track and respond to your council until the decision lands. You just watch progress.
Every set is drawn to your borough's validation checklist and reviewed before it ever reaches a planner's desk.
MCIAT chartered drawings, one fixed fee agreed before we start.
Highly competitive fixed fees — quoted free, agreed upfront, and backed by four commitments we put in writing.
One written fee for the agreed scope, sent within one working day. The price we quote is the price you pay.
Survey to full drawing set in seven days — while other practices are still booking your first meeting.
If your council asks for revisions, we redraw at no charge — as many times as it takes to get the decision.
Message your technologist before 3pm, hear back the same working day. No gatekeepers, no voicemail purgatory.
Planning permission, building regulations, loft conversion or house extension plans — tell us the address and the ambition, and a fixed, no-obligation quote comes back within one working day. If you don't need planning at all, we'll tell you that too.
Tell us your address and your ambition — we'll confirm feasibility and a fixed fee within one working day.
Get my free quoteOr call us — 020 7864 7245