Planning Permission Drawings in Harrow.
Existing + proposed plans, elevations and site plans drawn to local-authority validation standards. We handle the LPA submission and respond to officer queries. Fixed fee, MCIAT-chartered, London Borough of Harrow validation list built in.
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.
Across 600+ TradeMatch architectural-technology projects in 2024–25.
Survey to issued drawings on a standard residential brief.
Every LPA from Westminster to Bromley — local-plan and Article 4 aware.
What's in the planning drawings package.
Existing + proposed plans, elevations and site plans drawn to local-authority validation standards. We handle the LPA submission and respond to officer queries.
Deliverables
- Existing & proposed floor plans
- Existing & proposed elevations
- 1:200 site & block plan
- Design & access statement (when required)
- Planning portal submission
Timeline: 5–8 working days for drawings + 8 weeks LPA decision
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.
Harrow planning drawings, fixed-fee.
Existing + proposed plans, elevations and site plans drawn to local-authority validation standards. We handle the LPA submission and respond to officer queries. For Harrow — postcodes HA1, HA2, HA3, HA5 — every planning drawings package on the TradeMatch panel is MCIAT-chartered, carries £250,000+ PII, and bakes in London Borough of Harrow validation requirements before drawings hit the portal.
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.
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 | £1300 – £3250 |
| Building regulations drawings | Construction sections, calculations, building-control submission | £1600 – £4600 |
| Lawful Development Certificate | Permitted-development assessment + LDC submission | £900 – £1900 |
| Full architectural design | Concept → planning → BR → tender package | 6 – 10% of build cost |
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.
Harrow planning rules baked into your planning drawings.
Harrow combines an extraordinary heritage core — Harrow on the Hill, Harrow School and Pinner Village — with substantial interwar suburban stock across Stanmore, Wealdstone, Kenton and Rayners Lane. The borough-wide HMO Article 4 Direction (in force since March 2021) and one of outer London's highest listed-building densities mean almost every refurbishment, extension or change of use needs careful planning navigation. Our Harrow architectural technologists handle conservation area consents, listed-building applications and the borough's tight design-and-access expectations end-to-end.
Article 4 Directions
- Borough-wide Article 4 Direction restricting changes from C3 dwellinghouses → C4 small HMOs — in force from 27 March 2021
- Harrow on the Hill Conservation Area Article 4 Direction — HMO restrictions
- Article 4 Direction removing permitted development rights for office (Class E) → residential conversions in designated employment areas
Conservation Areas
- Harrow on the Hill
- Harrow School
- Pinner High Street
- Pinner Hill
- Pinner Village
- Tooke Close (Pinner)
- Waxwell Lane (Pinner)
- Hatch End
+ 12 more — full list on the council planning portal.
Postcodes covered
What homeowners often miss
Harrow on the Hill conservation area covers an extensive historic core anchored by Harrow School, one of the densest concentrations of listed buildings in outer London (after Westminster and Kensington & Chelsea). Pinner Village, Stanmore Hill and Canons Park add further heritage-protected layers. A borough-wide Article 4 Direction removing permitted development rights for C3 → C4 HMO conversions has been in force since 27 March 2021, meaning even small shared-house conversions need a full planning application.
The questions homeowners ask before they commit.
How long does a planning application take in Harrow?
The London Borough of Harrow statutory determination period is 8 weeks for householder applications and 13 weeks for major schemes. Add 2–3 weeks for validation in Harrow and 4–6 weeks for pre-application advice (recommended in any Conservation Area). We submit promptly and respond to officer queries the same working day.
How much do planning permission drawings cost in Harrow?
A standard Harrow householder planning drawings package is £950 – £2,400 fixed. Harrow-specific factors — conservation area, listed building, party-wall implications, basement-impact assessments — can lift the fee. We quote fixed-price after a free 15-minute review of the brief and Harrow planning context.
Do I need planning permission for an extension in Harrow?
Most rear extensions in Harrow fall within Permitted Development under Class A — but Article 4 Directions and Conservation Area designations frequently remove that right. We check London Borough of Harrow's A4D register and the local plan against your property before quoting, so you do not start drawings on the wrong route.
What does the Harrow planning portal need from me?
London Borough of Harrow's validation list typically requires: existing & proposed plans (1:50 / 1:100), elevations, site location plan (1:1250), block plan (1:500), design and access statement (when required), heritage statement (Conservation Area or listed building), and the application fee. We package and submit the full set on your behalf via the Harrow planning portal.
Will Harrow's Conservation Areas affect my application?
Yes — Harrow Conservation Areas trigger heritage scrutiny on materials, fenestration and roof additions. Rooflights, render changes, replacement windows and front-elevation works almost always need full planning permission inside a CA. Our drawings include a heritage justification matched to London Borough of Harrow's adopted character appraisal.
Can you handle the planning submission and officer queries for me?
Yes. For every Harrow planning application we run validation chase, planning portal upload, case-officer liaison and same-day response to written queries — all included in the fixed fee. You only step in when the officer requests a substantive design change.
Need a different package in Harrow?
Going deeper.
Same planning drawings in a neighbouring London area?
Planning Permission Drawings in Harrow — fixed fee, MCIAT-chartered.
Existing + proposed plans, elevations and site plans drawn to local-authority validation standards. We know London Borough of Harrow planning officers and the local plan.