MCIAT chartered drawings for planning permission, building regulations, loft conversions and house extensions — delivered across every London borough with fixed fees and a 98% first-time approval rate.
From a Certificate of Lawful Development for a loft conversion in Wandsworth to a listed-building consent in Hampstead, our chartered technologists handle the whole journey end-to-end.
Site plans, floor plans, elevations, sections and submission to your local planning authority. Full agent service until decision.
Full construction package — structure, fire, Part L thermal, drainage. Submitted to LABC or approved inspector with structural calcs coordinated.
Dormer, mansard, hip-to-gable, L-shape and Velux. LDC or full planning routes, permitted development assessment, building regs and structural.
Side return, rear, wraparound, double-storey, basement. Planning-led design with detailed technical phase and tender support.
Conservation area specialism. Full visualisation, heritage statement coordination and officer negotiation to maximise volume.
Measured surveys, LDCs, listed building consents, party wall, flat conversions, HMO, change of use, retrospective, appeals.
A streamlined process designed around London boroughs' planning quirks — with everything in your online portal.
Tell us your property type and postcode.
Pick the service — extension, loft, regs, LDC, more.
Book a site visit. Laser-measured in 60–90 min.
First draft in 10 working days. Unlimited revisions.
We submit & manage the council. You relax.
Most London extensions don't need an architect — they need someone who knows Part L inside-out and has submitted to your borough fifty times. That's what chartered architectural technologists do.
Upload deeds, receive drawings, sign fee agreements, pay in instalments, track submission status, chat with your technologist — from any device, at any hour.
We priced ourselves against every major London architectural practice. These are the numbers that came out.
Single planning submission or LDC for straightforward projects.
Everything you need from planning through to building on site.
Listed buildings, conservation areas, new-builds, developers.
Article 4 in Islington. Basement restrictions in Camden, Westminster and RBKC. Conservation area design guides in Richmond. We submit to every London planning authority — and we know what each one approves.
Passed planning with Hackney first time on a fairly bold mansard proposal. Architectural Drawings's drawings were better than the architect's quote we had been sitting on for six months, at less than half the price.
The portal was the thing. I've done projects where I chased PDFs via email for weeks. Here everything was in one place, including my stage payments. Very calming.
Four properties in our portfolio all approved through Architectural Drawings. The retainer for developers is genuinely how this should work. Our old architect used to charge us the same for each file as if they'd never seen our templates.
The planning system feels opaque until you've worked it for a decade. These are the six we hear most from London homeowners.
Ask about your projectMost loft conversions in London fall under Permitted Development rights if the extension stays under 40m³ for terraced homes or 50m³ for semi-detached and detached, uses matching materials, and is set back at least 20cm from the eaves. Flats, conservation areas, Article 4 areas and listed buildings generally need full planning permission. We confirm eligibility at the free site survey.
Planning drawings show what a building will look like — site location plan, proposed floor plans, elevations, sections — submitted to the local planning authority. Building regs drawings show how it will be built — structure, insulation, fire safety, ventilation, drainage — submitted to Building Control (LABC or approved inspector). Most residential projects need both.
Our fixed-fee packages start at £840 for a householder planning submission (survey, drawings, council submission). Building regs start at £840. Our Complete package covering planning + building regs + structural calcs starts at £1,750 — around 30% below typical London architect fees.
For most residential projects — loft conversions, extensions, renovations — an MCIAT chartered technologist delivers the same planning and building control approvals as an architect, usually 30–40% cheaper. Architects add most value on bespoke design or Grade I/II* listed buildings. For a typical London extension, a technologist is the right call.
Once validated, a householder application takes 8 weeks for a decision across London. More complex applications take 13 weeks. Our end-to-end lead time from instruction to submission is typically 3–4 weeks: one week survey, two weeks drawings, one week client revisions.
Refusals are rare — we run a 98% first-time approval rate. If it happens, we offer a free resubmission addressing the officer's reasons, or we'll prepare an appeal to the Planning Inspectorate at 50% of our standard rate. Full refund policy is published on our pricing page.
Tell us the property, scope and postcode — we'll send a fixed-fee proposal the same day.