Harrow architectural drawings
Plans for extensions, lofts and new builds in Harrow
WEDRAWPLANS prepare planning and technical drawings for house extensions, loft conversions, new builds and conversions across the London Borough of Harrow. Fixed fees with clear scope and fast communication.
- • House extensions, wrap around extensions and internal remodelling
- • Loft conversions including hip to gable and rear dormers
- • New build houses and small residential schemes
- • Planning drawings and building regulation packs
- • Covering Harrow on the Hill, Kenton, Rayners Lane, Wealdstone and Harrow Weald
- • Same day response on most enquiries
Free fixed fee quote
Tell us a little about your property and what you plan to build. We will reply with a clear fixed fee for your drawings.
Popular services in Harrow
We provide full design and planning services for extensions, loft conversions and new build developments. Each service page explains what is included, how approvals work, and how to get a fixed quote.
Nearby borough pages
Explore our local pages for nearby boroughs. If you are close to the border, these pages may be relevant for your project.
Architectural drawing services in Harrow
WEDRAWPLANS provide full drawing packages for single and double storey extensions, loft conversions, internal alterations, garage conversions, outbuildings, flat conversions and small new developments across the borough of Harrow.
We work throughout Harrow on the Hill, Harrow Weald, North Harrow, South Harrow, West Harrow, Wealdstone, Rayners Lane, Kenton, Queensbury side, Pinner borders, Stanmore borders and nearby streets.
Technical drawings builders can price from
Clear floor plans, elevations, sections and notes, coordinated with structural design so builders, Building Control and inspectors have what they need.
Harrow areas we cover
Drawings for the whole borough of Harrow, including:
- Harrow on the Hill
- Wealdstone
- North Harrow
- South Harrow
- West Harrow
- Harrow Weald
- Rayners Lane
- Kenton
- Queensbury side
- Pinner borders
- Stanmore borders
- Edgware borders
Popular projects in Harrow
- 3 m and larger rear extensions
- Wrap around and L shaped extensions
- Side extensions and infill extensions
- Hip to gable loft conversions
- Rear dormers with ensuite
- Garage conversions
- Internal reconfiguration
- Outbuildings and studios
- Flats, HMOs and change of use
- Small new build schemes
Permitted development limits in Harrow
This is a simplified guide to common permitted development limits. Final confirmation depends on your house type, location and any Article 4 directions.
Rear extensions
- Up to 3 m deep on terrace houses
- Up to 4 m on semi detached houses
- Up to 6 to 8 m with Prior Approval
- Maximum 4 m high for single storey
Loft conversions
- Up to 40 to 50 cubic metres volume
- No extensions on the front roof slope
- Side windows obscure glazed and fixed
- External materials to be similar
Outbuildings
- Maximum 2.5 m high near boundaries
- Cannot be used as a separate dwelling
- Use must be incidental to the house
- Not more than 50 percent of garden area
Planning drawings for Harrow
- Existing and proposed floor plans
- Existing and proposed elevations
- Roof plans and key sections
- Block plans and location plans
- Drainage and construction notes
- Design and access statements where needed
Building regulation drawings for Harrow
- Structural layouts and coordination
- Foundation and beam information
- Fire safety and escape routes
- Thermal build ups and insulation specs
- Ventilation and extract positions
- Drainage runs and manhole information
Local planning knowledge for Harrow projects
Harrow includes conservation areas near Harrow on the Hill, character streets with stricter design expectations and a mix of suburban semis and terraces. We shape each scheme to match local context so approval chances are as strong as possible.
Frequently asked questions
Do I need planning permission in Harrow
Many extensions and lofts can proceed under permitted development. We check your address and advise the best route at the start.
How fast can you survey
In most cases we can arrange the initial measured survey within forty eight hours of instruction.
Do you submit to Harrow Council
Yes. We handle the submission, monitor progress and respond to planning officer queries.
Can you coordinate structural design
Yes. We coordinate with structural engineers so beams and load paths are designed and shown correctly on the drawings.
Ready to start your project
Send your postcode and a short description. We review and reply with a fixed fee and recommended next steps.