Harrow architectural drawings
Architectural Drawings in Harrow for Extensions, Lofts and New Builds
Fixed price • Initial survey within 48 hours • Planning and Building Regulation drawings
WEDRAWPLANS prepare planning and technical drawings for house extensions, loft conversions, refurbishments and new build homes across the London Borough of Harrow. We focus on strong layouts, fast responses and fixed pricing so you can move from idea to permission and construction with confidence.
We regularly support homeowners across Harrow on the Hill, Kenton, Rayners Lane, Wealdstone, North Harrow, South Harrow and Harrow Weald, covering surrounding residential streets across the borough. Many local enquiries involve rear extensions, side returns, loft dormers, garage conversions and open plan internal remodelling.
Recent enquiries in Harrow include rear extensions, wraparound extensions, loft conversions and technical building regulation packs across HA1, HA2 and HA3.
- • Rear, side and wrap extensions to homes in Harrow
- • Dormer and hip to gable loft conversions
- • Internal remodelling and open plan layouts
- • Garage conversions and outbuildings
- • Small new build plots and infill housing
- • Planning drawings and Building Regulation packs
- • Covering Harrow on the Hill, Harrow Weald, Wealdstone, Kenton, Rayners Lane and surrounding areas
Request fixed drawing fees for your Harrow project
Tell us a little about your property in Harrow and what you plan to build. We will send a clear fixed fee for your drawings, often the same day.
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
These are the boroughs that directly border Harrow. If your property is close to the boundary, these local pages may also be relevant for your project.
Other London areas we also cover
These pages cover other parts of London that may still be useful if you are comparing services, moving area, or looking at similar project types elsewhere.
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 work throughout Harrow on the Hill, Harrow Weald, North Harrow, South Harrow, West Harrow, Wealdstone, Kenton, Rayners Lane and nearby streets. If you are in HA1, HA2, HA3, HA5 or HA7 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
- Harrow Weald
- North Harrow
- South Harrow
- West Harrow
- Wealdstone
- Kenton
- Rayners Lane
- Queensbury
- Pinner borders
- Stanmore borders
- Edgware borders
Popular projects in Harrow
- Rear extensions
- Wraparound and L shaped extensions
- Side extensions and infill extensions
- Dormer loft conversions
- Hip to gable loft conversions
- Garage conversions
- Internal reconfiguration
- Outbuildings and studios
- Flats and change of use
- Small new build schemes
Planning and permitted development in Harrow
Harrow follows its Local Plan alongside the London Plan. Many smaller house extensions and loft conversions can be carried out under permitted development, while larger schemes, conversions and new dwellings require full planning permission.
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 drawings are set out for smooth validation and clear review. We make sure key heights, depths and neighbour relationships are communicated properly to reduce unnecessary planning queries.
- 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 a broad mix of suburban streets, family houses and sites where design, scale and neighbour relationships matter. We shape each scheme to suit 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.
How do you help approval chances in Harrow
We set out clear dimensions, neighbour relationships and proportionate design. On sensitive sites we focus on scale, roof form and street fit so the proposal reads well to planners.
What is the next step
Send your postcode and a short description. We reply with fixed drawing fees and the recommended route: permitted development, lawful certificate, prior approval or full planning.
Ready to start your project
Send your postcode and a short description. We review and reply with fixed drawing fees and recommended next steps.
Ready to move your Harrow project forward
Share a few details and WEDRAWPLANS will reply with a clear fixed fee and suggested next steps for your Harrow extension, loft conversion, refurbishment or small new build scheme.
Prefer to speak. Call 020 3654 8508