Planning Permission in Croydon: 2026 Guide

Planning in Croydon — what you need to know

If you are planning a home improvement project in Croydon, understanding the local planning landscape is essential before you begin. Croydon is managed by London Borough of Croydon, which handles all planning applications, enforcement, and local plan policy for the borough.

Large, mixed-density outer borough; permissive in outer areas; heritage controls in conservation pockets; major regeneration in central Croydon. The borough has a population of approximately 390,000 residents and covers postcodes CR0, CR2, CR5, CR7, CR8, CR9, SE19, SE20, SE25.

The housing stock in Croydon is predominantly 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. This mix of property types means that Croydon Council deals with a wide range of applications, from rear extensions on terraced houses to loft conversions on semi-detached properties and full refurbishments of period homes in conservation areas.

With 24 designated conservation areas and no current Article 4 Directions, Croydon has a planning environment that balances heritage protection in conservation areas with generally permissive policies elsewhere.

At Architectural Drawings London, we prepare planning drawings and building regulations drawings for properties across all Croydon postcodes. Our MCIAT chartered architectural technologists have experience with Croydon Council and understand the specific policies, design guides, and precedents that apply in Croydon. Our fixed fees start from £840 for our Essentials package and £1,750 for our Complete package — 30% below typical London architect rates.

Article 4 Directions in Croydon

Croydon does not currently have any borough-wide Article 4 Directions that restrict Permitted Development rights for standard householder developments such as loft conversions, rear extensions, or outbuildings.

This means that most common home improvements in Croydon can proceed under Permitted Development without needing to apply for planning permission, provided they meet the national criteria for size, height, and position. We recommend applying for a Lawful Development Certificate (£129) to formally confirm that your project qualifies as Permitted Development. This provides legal certainty and is valuable when selling the property.

Even without Article 4 Directions, properties in Croydon's 24 conservation areas have additional restrictions on permitted development. We check the specific restrictions affecting your property as part of our initial assessment.

Conservation areas in Croydon

Croydon has 24 designated conservation areas. Notable conservation areas include:

• South Norwood
• Crystal Palace
• Old Coulsdon
• Purley
• Shirley Park

In conservation areas, Permitted Development rights are more restricted than in non-designated areas. Key restrictions include:

• No cladding, stone, artificial stone, pebble dash, render, timber, plastic, or tile to any external wall without planning permission
• No side extensions under Permitted Development
• Rear extensions are limited and may require planning permission
• Dormer loft conversions facing the highway require planning permission
• Satellite dishes on front elevations or chimneys are not permitted
• Demolition of gates, walls, fences, or other boundary treatment requires planning permission

If your property is in a Croydon conservation area, we can advise on what is achievable and prepare a planning application that addresses the conservation officer's requirements. Our 98% first-time approval rate includes a strong record in conservation area applications.

Popular projects in Croydon

The types of planning applications most commonly submitted in Croydon are shaped by the borough's 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, which drives demand for specific types of extensions and conversions.

Loft conversions

Croydon has extensive streets of terraced housing, making loft conversions one of the most popular home improvement projects in the borough. A rear dormer loft conversion on a typical Victorian or Edwardian mid-terrace can add 20-30 square metres of living space and significant value to the property. In many cases, rear dormers fall under Permitted Development rights, though properties in conservation areas or subject to Article 4 Directions will need full planning permission. We prepare loft conversion drawings for properties across Croydon, starting from £1,225 for our dedicated loft conversion package.

Side-return and rear extensions

The classic Victorian and Edwardian terrace layout in Croydon leaves a side return passage that is prime territory for a kitchen extension. A single-storey rear or side-return extension can often be built under Permitted Development, extending up to 6 metres from the rear wall (or up to 8 metres for detached houses under the Prior Approval process). We prepare extension plans for properties across all Croydon postcodes (CR0, CR2, CR5, CR7, CR8, CR9, SE19, SE20, SE25), with our Essentials package starting from £840.

Two-storey extensions

The semi-detached and detached housing stock in Croydon is well suited to two-storey rear extensions, which almost always require planning permission. A two-storey extension can add a larger kitchen-diner at ground floor and an additional bedroom and bathroom above. Croydon Council generally supports two-storey extensions that are subordinate to the original dwelling, set in from the boundary, and do not result in unacceptable loss of light or privacy to neighbours. Our Complete package from £1,750 covers full planning and building regulations drawings.

How much do planning drawings cost in Croydon?

The cost of a planning application in Croydon has two components: the council application fee and the professional drawing fees.

Our fixed-fee pricing means you know the cost upfront with no hourly billing surprises. We include a measured survey, existing and proposed plans, elevations, and a site plan — everything required for a valid planning submission to Croydon Council. Our fees are 30% below typical London architect rates for the same scope of work.

For Permitted Development projects that do not require a planning application, we recommend obtaining a Lawful Development Certificate (£129 council fee). This provides formal legal confirmation that your project is lawful and prevents problems when selling the property. We prepare the LDC drawings and application on your behalf.

Our experience in Croydon

We cover all Croydon postcodes: CR0, CR2, CR5, CR7, CR8, CR9, SE19, SE20, SE25. Whether your property is in a conservation area, affected by an Article 4 Direction, or in an unrestricted residential street, we have experience with Croydon Council and understand the borough's planning policies.

Our MCIAT chartered architectural technologists prepare planning drawings and building regulations drawings for residential projects across Croydon. We handle the full process from initial measured survey through to planning submission, and we liaise with Croydon Council on your behalf.

We also work in Croydon's neighbouring boroughs:

Frequently asked questions