Loft Conversion Drawings in Lewisham | From £1,225

No Article 4 Direction covers Lewisham, which keeps the Lewisham permitted-development route open on unlisted houses. The character of Lewisham is the yardstick a Lewisham Council officer measures a scheme against: Victorian terraces, post-war centre. Lewisham sits close enough to Blackheath that designation should be checked at the outset, not after design. It is confirmed against London Borough of Lewisham mapping for the Lewisham plot.

Before drawing anything for Lewisham, we check Article 4 directions against the SE13 boundary. The Lewisham numbers come off the building: rear wall, levels, ridge against Lewisham station. The borough policy layer over every SE13 address is set out on Lewisham planning. The Lewisham survey then carries into architectural drawings in Lewisham if the project runs on to construction.

Lewisham Council will not register a Lewisham application until validation completes. No Lewisham design work starts until the measured survey is complete.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

We monitor the SE13 case and respond to officer queries during the period. We format the Lewisham set exactly as Lewisham Council wants to receive it.

Objections on a Lewisham case usually come from the immediate neighbours, not the wider SE13 area. A Lewisham survey takes two to three hours and needs access to every room.

On Lewisham terraces the flank wall is usually shared, so the party wall notice should go out well before work starts. Once consent is granted, planning permission follows for the SE13 property.

Lewisham is characterised by victorian terraces, post-war flats, concentrated across SE13 in the Lewisham / Hither Green area. Across SE13 the victorian terraces repeats often enough to be predictable, once it has been measured properly. For a typical Lewisham house, the Victorian butterfly and double-pitched roofs on these streets normally clear the 2.2 m head height a dormer conversion needs once the ceiling joists are raised. On Lewisham stock it changes the party wall position. London Borough of Lewisham officers compare a SE13 scheme to the block it sits in, not to a policy number.

Lewisham Council assesses Lewisham basements on standard grounds. The Lewisham measured survey is reused across building regulations drawings for SE13 properties and house extension drawings, so the cost lands once.

What the Lewisham drawing pack contains

For a SE13 address the deliverables are fixed, not open-ended.

• existing roof plan and section for the Lewisham property
• proposed dormer elevations
• volume calculation sheet
• staircase and head-height sections
• structural steel layout

Streets and landmarks we survey around Lewisham

• Trafalgar Square — gardens deep enough for the 8 weeks householder route on a Trafalgar Square plot.
• Greenwich Park — roof profiles that set the ridge datum Lewisham Council measures a Greenwich Park dormer against.
• Newington Green — frontages visible from the highway, so Blackheath materials detail governs the Newington Green elevation.
• Slade Green — roof profiles that set the ridge datum Lewisham Council measures a Slade Green dormer against.
• Forest Hill — frontages visible from the highway, so Blackheath materials detail governs the Forest Hill elevation.
• Hither Green — side returns where the 45-degree amenity test decides how far a Hither Green extension goes.
• Lewisham station — proposals in its setting are drawn with the Lewisham context elevation.
• Haberdashers' Aske's Hatcham College — it anchors the Lewisham streetscape argument in an officer report.
• Queen Elizabeth Hospital — a Lewisham roof extension is judged against the datum it sets.
• Bonus Pastor Catholic College — proposals within its setting are drawn with the context elevation included.
• Conisborough College — Lewisham Council weighs SE13 sightlines to it in the character assessment.

Getting to a Lewisham survey

Surveyors travel to SE13 addresses from the studio; the nearest stations are Lewisham station, Dartford, St Johns, Lewisham. Appointments are booked in Lewisham on weekdays and Saturdays, and the measured survey of a standard victorian terraces takes two to three hours.

Where Lewisham sits

Lewisham lies 6 miles (10 km) southeast of Charing Cross, on Ordnance Survey grid reference TQ385755, inside the Lewisham North Lewisham West and East Dulwich parliamentary constituency. London Borough of Lewisham validates the SE13 address against exactly that position. Source.

Practical detail for a Lewisham submission: the nearest stations are Lewisham station and Dartford and St Johns and Lewisham; the Lewisham post town is LONDON; dialling code 020. Site plans are drawn to the address as Lewisham Council holds it.

Lewisham postcode coverage

SE13 (Lewisham / Hither Green), shared with Hither Green — all within our Lewisham survey radius.

Streets and stations in Lewisham

The Lewisham streets on our books include Trafalgar Square, Greenwich Park, Newington Green, Slade Green, Forest Hill and Hither Green. most Lewisham sites are within walking distance of Lewisham station or Dartford or St Johns.

Areas we cover around Lewisham

The surrounding patch — Bermondsey (SE1, SE16), Borough (SE1), Camberwell (SE5), Peckham (SE15), Dulwich Village (SE21), East Dulwich (SE22) — is drawn by the same team, though each street answers to its own designation.

You know the number before the surveyor is booked. What changes a Lewisham fee is the property: victorian terraces construction, shared walls on SE13, and whether heritage input is needed.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

That charge is London Borough of Lewisham's, taken when the Lewisham application is lodged. London planning approval-rate dataset · Lewisham planning · Loft Conversion Drawings London-wide · loft conversion drawings in Bermondsey.

A chartered technologist surveys the Lewisham property and signs the drawings — the same person, start to finish. Marginal SE13 sites get checked with Lewisham Council first; a refusal costs far more than the advice fee.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

Send the Lewisham address; we will come back with the route and the fee. This Lewisham page was reviewed in August 2026.