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Lewisham Council

Architectural technology in Lewisham

Planning drawings, building regulations, loft conversions, house extensions and mansards — delivered across Lewisham by MCIAT chartered technologists with deep knowledge of Lewisham Council's policies.

Lewisham at a glance

Planning authority
Lewisham Council
Population
302,000
Conservation areas
30
Article 4 Direction
No borough-wide
Postcodes
SE3, SE4, SE6, SE8, SE12, SE13, SE14, SE23, SE26
Typical housing
Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill
Technical drawings reviewed on tablet — architectural drawings in Lewisham
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MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.

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Services available in Lewisham

Every architectural service in Lewisham — one chartered team.

Planning Drawings in Lewisham

A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning Portal submission, an...

Building Regulations Drawings in Lewisham

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Lewisham

Every loft type across every Lewisham roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Lewisham

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Lewisham

Lewisham's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Lewisham

Turn your unused Lewisham garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Lewisham

Full architectural technology service for basement digs and cellar conversions in Lewisham — structural underpinning design, waterproofing...

Structural Calculations in Lewisham

Chartered structural engineer calculations for every residential intervention in Lewisham — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Lewisham

Fixed-fee measured surveys across Lewisham from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 p...

Party Wall Services in Lewisham

End-to-end Party Wall Act 1996 service for Lewisham — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Lewisham

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Lewisham property,...

Lewisham planning context

Planning in Lewisham

Housing stock: Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill; 1930s semi-detached in Catford and Hither Green; post-war mixed in Deptford.

Character: Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD.

Notable conservation areas: Blackheath, Deptford High Street, Forest Hill, Hither Green, Lee Green

Nearby boroughs

Boroughs adjacent to Lewisham

Victorian terraced street in Forest Hill SE23
MCIAT Chartered council-ready drawing review Fixed fees from £840 All 33 London boroughs
All services in Lewisham

What we do in Lewisham

Planning Drawings in Lewisham

A fixed-fee, end-to-end service — measured survey, scaled drawings, Design & Access Statement where required, Planning Portal submission, an...

Building Regulations Drawings in Lewisham

A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessib...

Loft Conversions in Lewisham

Every loft type across every Lewisham roof line — dormer, mansard, hip-to-gable, L-shape, Velux. LDC or full planning route, building regu...

House Extensions in Lewisham

The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical p...

Mansard Roof Extensions in Lewisham

Lewisham's most space-efficient loft solution when PD-route dormers are blocked. Our chartered team designs mansards that get approved in ...

Garage Conversions in Lewisham

Turn your unused Lewisham garage into a bedroom, home office or open-plan kitchen-diner. Planning route assessment, full building regulati...

Basement Conversions in Lewisham

Full architectural technology service for basement digs and cellar conversions in Lewisham — structural underpinning design, waterproofing...

Structural Calculations in Lewisham

Chartered structural engineer calculations for every residential intervention in Lewisham — steel beams, lintels, pad foundations, wall re...

Measured Building Surveys in Lewisham

Fixed-fee measured surveys across Lewisham from £540 — floor plans, elevations and sections to ±3mm accuracy. Leica Disto laser + BLK360 p...

Party Wall Services in Lewisham

End-to-end Party Wall Act 1996 service for Lewisham — Section 1, 3 and 6 notices, schedule of condition surveys, party wall award coordina...

Rear Dormer Loft Conversions in Lewisham

London's most popular loft type — the full-width rear dormer. Planning or Permitted Development route assessed for your Lewisham property,...

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Which postcode districts around Lewisham do we cover for drawing package work?

Every Lewisham postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. Lewisham fees below are the statutory England rates for 2026, not drawing package estimates.

PostcodeAreaDominant stockWhat it means for a drawing package
SE13Lewisham / Hither GreenVictorian terraces, post-war flatsSE13 covers Lewisham / Hither Green only; Lewisham Council handles the drawing package, and Lewisham / Hither Green case officers apply the SE13 conservation-area map.
SE14New CrossVictorian and Edwardian terraces across BrockleyNew Cross sits wholly inside SE14, so Lewisham Council validates every drawing package submitted from an SE14 address.
SE23Forest Hill / Honor OakVictorian villas, Edwardian terracesA drawing package at an SE23 address in Forest Hill / Honor Oak is determined by Lewisham Council under its own Local Plan policies for Forest Hill / Honor Oak.
SE26SydenhamVictorian villas, Edwardian terracesSE26 straddles a boundary: Sydenham addresses fall to Lewisham Council or Bromley Council, so confirm which authority validates the drawing package before submitting SE26 drawings.
SE3Blackheath / KidbrookeGeorgian villas, Victorian terracesBlackheath / Kidbrooke is split at SE3. Either Greenwich Council or Lewisham Council can determine a drawing package here, so the SE3 address is checked against both policies maps first.
SE4BrockleyVictorian and Edwardian terracesA drawing package at an SE4 address in Brockley is determined by Lewisham Council under its own Local Plan policies for Brockley.
SE6Catford / Bellingham1930s semi-detached, post-war flatsSE6 covers Catford / Bellingham only; Lewisham Council handles the drawing package, and Catford / Bellingham case officers apply the SE6 conservation-area map.
SE8DeptfordGeorgian terraces, post-war estates, new-buildDeptford sits wholly inside SE8, so Lewisham Council validates every drawing package submitted from an SE8 address.

What changes about a drawing package in each part of Lewisham?

Roof pitch, wall build-up and plot depth change every few Lewisham streets, and each one changes what a drawing package can achieve at that address.

Does Lewisham planning policy restrict a drawing package?

How designation changes a Lewisham drawing package: Lewisham Council maintains 30 conservation areas, including Lee Green, Blackheath, Deptford High Street. Inside any of them a Lewisham drawing package cannot rely on permitted development, and the route becomes a £258 householder application determined in 8 weeks rather than a £120 prior approval in 6 weeks. Deptford High Street sets the tone for Lewisham casework.

No blanket Article 4 over Lewisham: Lewisham Council has not withdrawn permitted development across Lewisham, so a drawing package outside a Lewisham conservation area usually keeps it. The £129 Lawful Development Certificate is still the document a SE4 owner wants on file.

What Lewisham is built from: Victorian and Edwardian terraces across Brockley, Honor Oak, Forest Hill; 1930s semi-detached in Catford and Hither Green; post-war mixed in Deptford. Generally permissive planning compared to central boroughs; loft conversions and side-return extensions routinely approved under PD. That mix decides the drawing package route in Lewisham more than the postcode does. Our fixed fee for architectural drawings in Lewisham starts at £840, against £1,750 for the Complete package that carries a Lewisham scheme through Lewisham Council planning and building regulations together.

What happens if a Lewisham property sits on a boundary?

Sources for this Lewisham drawing package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.

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Neighbourhoods we cover in Lewisham

9 Lewisham neighbourhoods

We've delivered architectural drawings across every part of Lewisham. Each neighbourhood has its own conservation context and dominant housing stock — click through for area-specific guidance.

Neighbourhood guide
Further reading

Guides & next steps

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Get a free, no-obligation quote for your project. Fixed fees from £840. MCIAT chartered.

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