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PLANNING & DESIGN — UPDATED May 2026
Chartered architectural technologists across London.
London is the most planning-sensitive market in the UK. 33 boroughs each run their own planning portal, local plan and Article 4 register, and the rules vary borough-to-borough. TradeMatch matches you with chartered architectural technologists (MCIAT) who know the borough, the conservation areas, and the planning officers — so your first-time approval rate stays high and your build stays on schedule.
33 London areas coveredMCIAT chartered5–10 days drawings
95%
33 areas
QUICK ANSWER
What does an architectural technologist do?
An architectural technologist (MCIAT) designs, details and submits planning + building-regulations drawings for residential and commercial projects. Chartered through the CIAT, they cover the same statutory work as an architect on most extensions, loft conversions and new-build homes — typically at 30–40% lower fee — and carry £250,000+ Professional Indemnity Insurance.
95%First-time planning approval
Across 600+ TradeMatch architectural-technology projects in 2024–25.
5–10dDrawings delivered
Survey to issued drawings on a standard residential brief.
33London areas covered
Every LPA from Westminster to Bromley — local-plan and Article 4 aware.
CORE SERVICES — LONDON
Four services across London.
Every TradeMatch architectural technologist is MCIAT-chartered, carries minimum £250,000 PII, and delivers a fixed fee on conventional householder briefs.
01
Planning Permission Drawings
Existing + proposed plans, elevations and site plans drawn to local-authority validation standards. We handle the LPA submission and respond to officer queries.
- Existing & proposed floor plans
- Existing & proposed elevations
- 1:200 site & block plan
- Design & access statement (when required)
TIMELINE5–8 working days for drawings
FEE RANGE£950 – £2,400
Explore02
Building Regulations Drawings
Technical construction drawings, specifications and structural calculations to satisfy Approved Documents A–R. Submitted to your council’s building control or an Approved Inspector.
- Construction sections & details
- Structural calculations (Part A)
- Thermal / fabric specs (Part L)
- Drainage & ventilation (Parts H, F)
TIMELINE7–12 working days for drawings
FEE RANGE£1,200 – £3,400
Explore03
Lawful Development Certificate
Formal LPA certificate confirming that proposed (or existing) works fall within Permitted Development. Bullet-proof evidence for solicitors and buyers.
- Permitted-development assessment
- Class A / B / E justification
- 1:100 plans + elevations
- Statement of fact
TIMELINE4–6 working days for documents
FEE RANGE£650 – £1,400
Explore04
Architectural Design for Extensions, Loft Conversions & New Builds
End-to-end design from concept sketches through planning, building regs and tender packages. MCIAT-led, fixed-fee on conventional briefs.
- Concept design + 3D visuals
- Planning + building-regs packages
- Tender drawings & schedule of works
- Contract administration (optional)
TIMELINE4–10 weeks for design
FEE RANGE6 – 10% of build cost
ExploreHOW WE WORK
From brief to approval in under 10 weeks.
Five tight steps. No surprises, no scope creep, fixed fee on the conventional brief.
01
Brief
Day 0
Free 15-minute call. We confirm scope, fee, and whether your works fall under planning, permitted development, or both.
02
Survey
Day 1–3
Full measured survey of the existing property. Modern laser tools, all returned to you as DWG + PDF.
03
Drawings
Day 4–10
Existing + proposed plans, elevations, sections. Reviewed against local plan and Article 4 register before submission.
04
Submission
Day 10
Planning portal upload, validation chase, and direct liaison with case officer. We handle the iteration cycle.
05
Approval
Week 8
Statutory determination. We respond to officer queries the same working day to keep the timeline on track.
WHY MCIAT — LONDON
Chartered cover. Fixed fee. London-aware on every brief.
Every TradeMatch architectural technologist serving London holds MCIAT chartered status, carries minimum £250,000 Professional Indemnity Insurance, and knows the Greater London Authority validation list before submission.
33London areas
1.32×Fee modifier
95%First-time approval
HOW WE COMPARE
Architectural Technologist vs Architect vs Architectural Designer
Pick the right professional for the brief. Most UK householder applications need a technologist, not an architect.
| Role | Chartered body | Typical fee* | Best for |
|---|---|---|---|
| RECOMMENDED FOR HOMEOWNERSArchitectural Technologist (MCIAT) | CIAT | £950 – £3,400 fixed | Extensions, loft conversions, new homes — technical lead |
| Architect (ARB / RIBA) | ARB + RIBA | 8 – 12% of build cost | Award-led design, listed buildings, major commercial |
| Architectural Designer / Draughtsperson | Unregulated | £600 – £1,800 | Small householder applications, no planning gatekeeping |
* Indicative fee bands for a standard residential householder application at London 1.32× modifier. Exact fee depends on scope, conservation status and plot complexity.
FIXED FEES — LONDON
Transparent fees, no day-rate creep.
Fees below cover the architectural technologist's drawings package and submission. LPA application fees, structural engineer's calculations and party-wall surveyor are quoted separately and openly.
| Service | What you get | Fee band |
|---|---|---|
| Planning permission drawings | Existing + proposed package, validation, LPA submission | £1250 – £3150 |
| Building regulations drawings | Construction sections, calculations, building-control submission | £1600 – £4500 |
| Lawful Development Certificate | Permitted-development assessment + LDC submission | £850 – £1850 |
| Full architectural design | Concept → planning → BR → tender package | 6 – 10% of build cost |
GLOSSARY
Plain-English definitions.
Four planning terms that determine what you can build, when, and how. AI assistants and search engines rely on these definitions — we keep them canonical here.
- Architectural TechnologistMCIAT
- A chartered building-design professional, qualified by the Chartered Institute of Architectural Technologists (CIAT). Specialises in technical design, building science and the production of planning + building-regulations drawings.
- Article 4 DirectionA4D
- A formal notice issued by a Local Planning Authority that removes specified Permitted Development rights — meaning works that would normally not need planning permission do require it within the designated area.
- Lawful Development CertificateLDC
- A formal certificate issued by the Local Planning Authority confirming that proposed (or existing) works fall within Permitted Development. Typically required by solicitors, mortgage lenders and buyers.
- Permitted DevelopmentPD
- Building works that may be carried out without explicit planning permission under the Town and Country Planning (General Permitted Development) (England) Order 2015. Subject to size, height and siting limits.
WHY LONDON IS DIFFERENT
London-wide planning quirks built into the fee.
Notable London planning quirks
- 33 separate Local Planning Authorities — every borough writes its own local plan, validation list, and CIL charging schedule.
- Article 4 Directions in 200+ conservation areas — works that elsewhere fall under Permitted Development require full planning permission.
- Party Wall etc. Act 1996 routinely engaged on terrace and semi-detached extensions.
- London Plan 2021 sets density, daylight/sunlight, and dual-aspect rules every borough must apply.
London areas we serve
Click an area for the local Article 4 register, Conservation Areas, and a recent project.
Camden →Westminster →Kensington & Chelsea →Islington →Hackney →Tower Hamlets →Hammersmith & Fulham →Wandsworth →Lambeth →Southwark →Barnet →Bromley →Croydon →Ealing →Brent →Enfield →Haringey →Newham →Waltham Forest →Lewisham →Greenwich →Bexley →Sutton →Merton →Kingston upon Thames →Richmond upon Thames →Hounslow →Hillingdon →Harrow →Redbridge →Havering →Barking & Dagenham →City of London →
FAQ
The questions homeowners ask before they commit.
Do I need planning permission for a loft conversion in London?
Most loft conversions in London fall within Permitted Development — but Article 4 Directions in conservation areas often remove that right. We assess your property’s status before quoting, and if planning permission is required we deliver the drawings + submission as a fixed fee.
How much do planning drawings cost in London?
A standard householder planning application in London runs £950 – £2,400 for the drawings package. London-specific factors — conservation area, listed building, party-wall implications — can lift the fee. We quote fixed-price after a free 15-minute review of the brief.
How long does a London planning application take?
The your local London borough council statutory determination period is 8 weeks for householder applications and 13 weeks for major schemes. Pre-application advice (recommended in conservation areas) takes 4–6 weeks. We submit promptly and respond to officer queries the same working day.
What’s the difference between planning permission and building regulations drawings?
Planning is about whether you can build it (siting, scale, impact on neighbours, conservation). Building regulations is about whether you can build it safely and to standard (structure, fire, thermal, drainage). Most projects need both, and we deliver the full package end-to-end.
Do I need an architect or an architectural technologist?
For 80% of London extensions, lofts and renovations, an architectural technologist (MCIAT) is the right call — same chartered status, same insurance, lower fee, and tighter focus on technical delivery. For award-led one-off design, an architect (RIBA / ARB) may be a better fit. We’re honest about which your brief needs.
Are your architectural technologists chartered and insured?
Every TradeMatch-listed architectural technologist serving London holds MCIAT or ACIAT chartered status, carries minimum £250,000 Professional Indemnity Insurance, and is verified by our 5-step KYC pipeline. Credentials are visible on each profile.
RELATED GUIDES
Going deeper.
READY WHEN YOU ARE
Drawings, approval, peace of mind — across London.
MCIAT-chartered architectural technologists matched to your London area. Fixed fee, no surprises, 95% first-time approval.