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Croydon Council

Architectural technology in Croydon

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

Croydon at a glance

Planning authority
Croydon Council
Population
390,000
Conservation areas
24
Article 4 Direction
No borough-wide
Postcodes
CR0, CR2, CR5, CR7, CR8, CR9, SE19, SE20, SE25
Typical housing
Victorian villas in Upper Norwood and Crystal Palace
London period house exterior with architectural character — architectural drawings in Croydon
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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 Croydon

Every architectural service in Croydon — one chartered team.

Planning Drawings in Croydon

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

Building Regulations Drawings in Croydon

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 Croydon

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

House Extensions in Croydon

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

Mansard Roof Extensions in Croydon

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

Garage Conversions in Croydon

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

Basement Conversions in Croydon

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

Structural Calculations in Croydon

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

Measured Building Surveys in Croydon

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

Party Wall Services in Croydon

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

Rear Dormer Loft Conversions in Croydon

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

Croydon planning context

Planning in Croydon

Housing stock: Victorian villas in Upper Norwood and Crystal Palace; Edwardian terraces in Thornton Heath and Selhurst; 1930s semi-detached in Purley and Coulsdon; post-war in Croydon central.

Character: Large, mixed-density outer borough; permissive in outer areas; heritage controls in conservation pockets; major regeneration in central Croydon.

Notable conservation areas: South Norwood, Crystal Palace, Old Coulsdon, Purley, Shirley Park

Nearby boroughs

Boroughs adjacent to Croydon

Victorian villas in Crystal Palace SE19
MCIAT Chartered council-ready drawing review Fixed fees from £840 All 33 London boroughs
All services in Croydon

What we do in Croydon

Planning Drawings in Croydon

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

Building Regulations Drawings in Croydon

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 Croydon

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

House Extensions in Croydon

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

Mansard Roof Extensions in Croydon

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

Garage Conversions in Croydon

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

Basement Conversions in Croydon

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

Structural Calculations in Croydon

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

Measured Building Surveys in Croydon

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

Party Wall Services in Croydon

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

Rear Dormer Loft Conversions in Croydon

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

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Where in Croydon does a drawing package actually get determined?

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

PostcodeAreaDominant stockWhat it means for a drawing package
CR8Purley1930s semi-detached, Edwardian villasA drawing package at an CR8 address in Purley is determined by Croydon Council under its own Local Plan policies for Purley.
SE20Anerley / PengeVictorian and Edwardian terracesA drawing package in Anerley / Penge may land with Bromley Council or Croydon Council — SE20 crosses the boundary, and the SE20 policies map decides it street by street.
SW16Streatham / NorburyEdwardian terraces, post-war flatsSW16 straddles a boundary: Streatham / Norbury addresses fall to Lambeth Council or Wandsworth Council or Merton Council or Croydon Council, so confirm which authority validates the drawing package before submitting SW16 drawings.
SE19Upper Norwood / Crystal PalaceVictorian villas, Edwardian terracesUpper Norwood / Crystal Palace is split at SE19. Either Croydon Council or Lambeth Council can determine a drawing package here, so the SE19 address is checked against both policies maps first.
SE25South Norwood / SelhurstVictorian terracesSouth Norwood / Selhurst sits wholly inside SE25, so Croydon Council validates every drawing package submitted from an SE25 address.
CR0Croydon / Addiscombe / ShirleyEdwardian terraces, post-war flatsCR0 covers Croydon / Addiscombe / Shirley only; Croydon Council handles the drawing package, and Croydon / Addiscombe / Shirley case officers apply the CR0 conservation-area map.
CR2South CroydonVictorian villas in Upper Norwood and Crystal Palace; Edwardian terraces in Thornton Heath and Selhurst; 1930s semi-detached in Purley and Coulsdon; post-war in Croydon centralCR2 covers South Croydon only; Croydon Council handles the drawing package, and South Croydon case officers apply the CR2 conservation-area map.
CR5Coulsdon1930s semi-detachedA drawing package at an CR5 address in Coulsdon is determined by Croydon Council under its own Local Plan policies for Coulsdon.

How does a drawing package differ street by street across Croydon?

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

How do conservation areas and Article 4 affect a drawing package in Croydon?

Croydon conservation designations: there are 24 across Croydon Council, Old Coulsdon, Purley, Shirley Park among them. Designation costs a Croydon owner the permitted-development route: a drawing package then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Crystal Palace is the Croydon designation that most often changes a drawing package design.

Article 4 and your Croydon drawing package: Croydon Council has made no borough-wide direction, so permitted development for a drawing package in Croydon generally survives outside Croydon conservation areas and listed curtilages. A Lawful Development Certificate at £129 is how a SE19 owner records that a drawing package was lawful.

The building fabric around Croydon: Victorian villas in Upper Norwood and Crystal Palace; Edwardian terraces in Thornton Heath and Selhurst; 1930s semi-detached in Purley and Coulsdon; post-war in Croydon central. Large, mixed-density outer borough; permissive in outer areas; heritage controls in conservation pockets; major regeneration in central Croydon. A drawing package in Croydon is scoped against that stock first. Our Croydon fixed fee starts at £840; the £1,750 Complete package runs the Croydon scheme through Croydon Council planning and building control in one go.

What happens if a Croydon property sits on a boundary?

Sources for this Croydon 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 Croydon

10 Croydon neighbourhoods

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

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