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, focused on approval ready submissions and buildable technical packs.
- • House extensions, wraparound 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 and the recommended next steps for Harrow.
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 deliver planning drawings and technical packs for Harrow homeowners and property developers. We design and draw single storey and double storey house extensions, side return and wraparound extensions, loft conversions, internal reconfiguration, outbuildings, and small new build schemes. Every package is structured to reduce delays, improve approval confidence, and give builders clear information to price and build accurately.
We cover 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. If you are in HA1, HA2, HA3, or on the Harrow borders, we can advise quickly.
- Measured survey and existing drawings
- Proposed plans, elevations and sections
- Planning submission support if required
- Building regs drawings when needed
- Structural coordination and details
- Fast revisions and clear scope control
- Fixed fee quote with deliverables listed
- Survey within 48 hours where possible
- Harrow specific planning route guidance
- WhatsApp updates if you prefer
- Clear next steps after every stage
- Support until submission is complete
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 for accurate pricing and site delivery.
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 and Edgware borders.
If you are unsure which area you are in, send your postcode and we will confirm coverage and arrange the next steps.
Popular projects in Harrow
- 3m and larger rear extensions
- Wraparound 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 and change of use layouts
- 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 or prior permissions that affect permitted development rights.
Rear extensions
- Up to 3m deep on terrace houses
- Up to 4m on semi detached houses
- Up to 6m to 8m with prior approval where eligible
- Maximum 4m high for many single storey cases
Loft conversions
- Volume allowance typically 40 to 50 cubic metres depending on house type
- No extensions on the front roof slope in many cases
- Side windows often require obscure glazing and fixed opening
- External materials should be similar to existing
Outbuildings
- Maximum 2.5m high near boundaries in many cases
- Cannot be used as a separate dwelling
- Use must be incidental to the main house
- Not more than 50 percent of garden area covered by buildings
Planning drawings for Harrow
Our Harrow planning drawing packages are designed to validate smoothly and communicate the proposal clearly. We highlight the key dimensions and constraints that planning officers focus on, including height, depth, relationship to boundaries, and impact on neighbours where relevant.
- Existing and proposed floor plans
- Existing and proposed elevations
- Roof plans and key sections
- Block plan and site location plan
- Key notes to support clarity and validation
- Design statement support where needed
Building regulation drawings for Harrow
Our Harrow building regs packs focus on buildability and compliance. They reduce site questions, help builders price accurately, and give Building Control the technical information they need.
- Structural layout coordination and key details
- Foundation strategy notes and critical junctions
- Fire safety approach and escape routes where required
- Thermal build ups and insulation specification
- Ventilation and extract positions
- Drainage strategy and basic layouts where required
Local planning knowledge for Harrow projects
Harrow includes conservation areas near Harrow on the Hill, character streets with stronger design expectations, and a mix of suburban semis and terraces. We shape each scheme to match local context so approval confidence is as strong as possible, while keeping layouts practical for build cost and space gain.
Frequently asked questions
Do I need planning permission in Harrow
Many extensions and lofts can be permitted development. We check your address and advise the best route from the start so you avoid delays.
How fast can you survey
In most cases we can arrange the initial measured survey within 48 hours of instruction.
Do you submit to Harrow Council
Yes. We handle 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.
Can you help with building regs packs
Yes. We can prepare a full building regs pack for Building Control, including sections, construction notes, insulation build ups and compliance information.
What do you need to price the quote
Postcode, project type, and a one line description is enough. If you have photos or an old plan, you can include it in your message after we reply.
Ready to start your project
Send your postcode and a short description. We review and reply with a fixed fee and recommended next steps.