Sutton Planning Consultant
Suburban streets, Green Belt edges
Sutton is outer London at its most suburban: interwar semis in Worcester Park and North Cheam, village cores in Carshalton and Cheam, and Green Belt along the Surrey border. Much of the planning work here involves extensions, conversions and small infill sites, where local character tests decide the outcome. Cedar Planning prepares proposals that meet them.
Our Chartered practice is led by Dan Malloy MRTPI. We are a Norfolk firm with clients throughout England, including outer London boroughs such as Sutton. Contact with the council and the Planning Inspectorate is handled directly, and we visit the site whenever the project calls for it.
- RTPI Chartered
- Fixed-fee quotations
- Direct advice from a Chartered Planner
Sutton's current plan and its replacement
Applications are determined against the Sutton Local Plan 2016 to 2031, adopted on 26 February 2018. Unlike many London boroughs, Sutton numbers its policies simply, from Policy 1 on sustainable growth to Policy 40 on site allocations, so references such as Policy 28 or Policy 30 appear throughout officer reports.
Work on a replacement is well advanced. An Issues and Preferred Options consultation ran from 25 July to 26 September 2024 and drew almost 9,000 comments. The Draft Sutton Local Plan 2024 to 2041 then went out for its final, Regulation 19 stage from 18 June to 31 July 2026, and the council intends to take it to Full Council in autumn 2026 so it can be submitted for examination.
Until the new plan is examined, its policies carry less weight than the 2018 plan, but they signal where the council is heading. Landowners hoping to see sites allocated, or wanting to challenge a proposed designation, should expect the examination to be the next opportunity to be heard.
Sutton does not rely on a large set of supplementary planning documents. Instead it has issued technical guidance, including the 2018 note Building a Sustainable Future on carbon offsetting, the Green Space Factor and biodiversity, and an interim note on Biodiversity Net Gain published in April 2025.
The London Cancer Hub and Sutton town centre
Sutton is a London Plan Opportunity Area. Policy 2 supports the London Cancer Hub at Belmont as a health and life sciences campus, while Policy 3 makes Sutton town centre the main focus for new homes, offices and public realm improvements.
Issues that come up in Sutton
A borough-wide Article 4 Direction, made on 22 February 2024 and confirmed on 26 November 2024, means converting any house to an HMO, whatever its size, needs planning permission.
An older Article 4 Direction confirmed in 1984 requires permission for roof extensions and dormers on various properties across the borough, catching owners who assume a loft is permitted development.
A 2007 direction removes householder rights on roads including Meadow Close, Woodend, Oaks Close and Greenhill, protecting the character of this early twentieth century estate.
Policy 13 on housing and garden land guards against the loss of gardens, so infill and backland plots are judged closely against suburban character and neighbour amenity.
Planning help for Sutton projects
We work on fixed-fee quotations agreed before work starts. These are the services most relevant in the borough.
Householder Applications
Extensions, loft conversions and outbuildings in Cheam, Wallington and Worcester Park, with a check first for the 1984 roof alterations and Garden Suburb Article 4 Directions.
View serviceHMO Planning Permission
Every HMO conversion in Sutton now needs an application. We address Policy 10 on loss of housing and conversions, space standards, amenity, parking and waste.
View servicePlanning Applications
Infill homes, flat conversions and small commercial schemes across the district centres, argued against Policy 28 on character and design and Policy 29 on amenity.
View serviceHeritage Statements
Assessments under Policy 30 for work in the borough's 15 conservation areas, including Carshalton Village and Cheam, and for listed or locally listed buildings.
View serviceLocal Plan Representations
Promoting sites or objecting to allocations and designations as the Draft Sutton Local Plan 2024 to 2041 moves towards submission and examination.
View serviceLawful Development Certificates
Confirming that an existing HMO pre-dates the Article 4 Direction, or that works carried out some years ago are now lawful, before a sale or a new application.
View serviceNumbered policies in the Sutton Local Plan
For most small schemes the key tests are Policy 28 on character and design, Policy 29 on protecting amenity and Policy 30 on heritage. Housing proposals also meet Policy 10 on loss of housing and conversions and Policy 13 on housing and garden land. Policy 31 on carbon and energy applies to new build homes.
Heritage matters extend beyond the conservation areas. Sutton has 181 listed buildings and over 100 locally listed buildings, and the Local Plan also identifies Areas of Special Local Character, with no fewer than four around Wallington alone.
At regional level, Policy 24 on Green Belt and Metropolitan Open Land works with London Plan policies G2 and G3. We also draw on SD1 on Opportunity Areas, D3 on design-led density and H1 on housing supply. Sutton charges its own Community Infrastructure Levy in addition to the Mayoral CIL.
Where Sutton applications need most care
The main test for extensions and infill, looking at scale, rhythm and materials in largely uniform suburban streets.
Covers daylight, outlook, privacy and noise for neighbours, often decisive for rear extensions and HMOs.
Applies strict control to building on protected open land, including extensions and replacement buildings.
Protects listed buildings, conservation areas, locally listed buildings and Areas of Special Local Character.
A Consultancy That Works With You, For You
Sutton's planning controls are easy to underestimate. A borough-wide HMO direction, a long-standing roof alterations direction and local character designations mean that work many owners expect to be permitted development often needs permission here.
Advice is also valuable while two plans overlap, because the draft 2041 plan may affect how officers weigh proposals on allocated or designated land.
RTPI Chartered
Led by a Chartered member of the Royal Town Planning Institute with more than ten years of public and private-sector planning experience.
Honest Prospects
A realistic view of the planning risks and options before you commit time or money.
Fixed, Transparent Fees
Fixed-fee quotations agreed before work starts, so you know the cost from the outset.
Direct Access
You deal with the Chartered Planner doing the work, not an account manager.
Planning Consultants Across London
We cover every council area in London. See our main London planning consultants page.
Sutton Planning FAQs
Which Local Plan applies in Sutton in 2026?
The Sutton Local Plan 2016 to 2031, adopted in February 2018, alongside the London Plan 2021. The Draft Sutton Local Plan 2024 to 2041 completed its final consultation in July 2026 and is due to go to Full Council before being submitted for examination.
Do I need planning permission for a three-bedroom HMO in Sutton?
Yes. Sutton's borough-wide Article 4 Direction, confirmed in November 2024, means any conversion of a house to an HMO requires permission regardless of size. A licence is a separate requirement. See our guide to HMO Article 4 Directions.
Can I build a dormer in Sutton under permitted development?
Possibly, but check first. A 1984 Article 4 Direction removes roof extension rights on various properties in the borough, and houses in conservation areas have reduced rights anyway. Our loft conversion guide sets out the national rules.
Can I extend a house in Sutton's Green Belt?
Extensions are allowed where they are not disproportionate to the original building, under national policy and Policy 24 of the Local Plan. Size, height and visual effect on openness are assessed. Previous extensions count towards the total.
Where is Sutton planning most new development?
Sutton town centre under Policy 3 and the London Cancer Hub at Belmont under Policy 2 are the main growth areas, together forming the Sutton Opportunity Area in the London Plan. District centres such as Wallington and Worcester Park take smaller-scale growth.
Get a Free Quote
Tell us what you are trying to achieve and where the property or site is. We will give you an initial view and a fixed-fee quote.
Or email us at info@cedarplanning.co.uk with the relevant information.
Planning an extension in Cheam or an HMO in Sutton town? Book a free 15-minute call, or read our Green Belt extension guide and London appeals page.