Sutton Green Belt Housing Sites Revealed 2026; Sutton, 2026

Key Points

• Sutton Council has identified three Green Belt sites in South London that could be developed for housing as part of its Draft Local Plan
• The three locations are: 1-3 Metcalfe Avenue in Carshalton, Woodcote Grove House in Coulsdon, and Woodcote Green Garden Centre on Woodmansterne Lane
• Together these sites are designated as “grey belt” land – a planning category introduced by the Labour government in December 2024 for lower-quality, previously developed Green Belt land
• Sutton is home to 616 hectares of Green Belt land, but campaigners warn releasing parts for development could have lasting environmental consequences
• The proposals aim to meet Sutton’s housing and employment needs over the next 15 years
• The council faces an acute housing crisis with over 1,000 people on the housing waiting list
• Grey Belt land must avoid weakening the wider Green Belt, be in a sustainable location, meet demonstrable need, and for major housing schemes offer 15% more affordable housing (up to 50% cap)
• The Labour government has announced a goal of constructing 1 million homes over the next few years

Sutton (South London News) June 3, 2026 – Sutton Council has identified three Green Belt sites that could be built on as part of plans to meet the borough’s future housing needs, according to the council’s newly published Draft Local Plan.

The locations include 1-3 Metcalfe Avenue in Carshalton, Woodcote Grove House in Coulsdon, and the Woodcote Green Garden Centre on Woodmansterne Lane.

Together, the sites have been designated as “grey belt” land – a planning category introduced by the Labour government in December 2024 to free up lower-quality and previously developed Green Belt land for development.

Why Is Sutton Council Proposing Development on Green Belt Land?

As reported in the Draft Local Plan, the proposals form part of a wider strategy to accommodate Sutton’s growing housing and employment needs over the next 15 years.

The council is currently facing an acute housing crisis, with over 1,000 people on the housing waiting list. Sutton is home to 616 hectares of Green Belt land, making it one of the South London boroughs with significant protected green space.

According to the government’s definition added to the National Planning Policy Framework (NPPF) in December 2024, “grey belt” refers to Green Belt land that is previously developed or does not strongly support some of the key purposes of Green Belt designation. The definition states:

“For the purposes of plan-making and decision-making, ‘grey belt’ is defined as land in the green belt comprising previously developed land and/or any other land that, in either case, does not strongly contribute to any of purposes (a), (b), or (d) in paragraph 143”.

What Are the Environmental Concerns Raised by Campaigners?

Campaigners warn that releasing parts of Sutton’s Green Belt for development could have lasting environmental consequences. The London Green Belt Council has reported a

“greatly increasing number of threats to London’s Green Belt”

due to government housing targets and liberalised planning policies.

Environment experts including the National Trust, Green Alliance, and London Wildlife Trust will advise on mitigations and enhancements for any green belt release, according to the Mayor of London’s consultation on the new London Plan.

The Mayor is clear that any green belt release must be based on building sustainable, liveable neighbourhoods with access to public and active travel options, make the best use of land, and deliver improved access to green space and biodiversity gains.

How Does the Grey Belt Policy Work Under Labour Government Rules?

As explained by Searchland’s developer guide, grey belt land must meet specific requirements before development can proceed:

Land now needs to strongly contribute to one of three specified Green Belt purposes to avoid being classified as Grey Belt.

These purposes include: (a) checking unrestricted sprawl of large built-up areas, (b) preventing neighbouring towns merging into one another, and (d) preserving the setting and special character of historic towns.

The Labour government has announced its goal of constructing 1 million homes over the next few years and has pinpointed “poor quality” green belt as potential construction sites.

A government spokesperson emphasized that these initiatives would release additional land for homes and infrastructure that communities urgently require, ensuring sustainable, affordable, and well-planned developments on low-quality grey belt land.

What Happens Next in the Local Plan Process?

The Draft Local Plan is currently open for public consultation. According to planning process documentation, following the consultation period, all responses will be considered and then the draft Plan and consultation responses will be submitted to the Planning Inspectorate for an Examination-in-Public. If the Sutton Local Plan is found sound at the examination, the council will adopt the plan.

Once adopted, the Local Plan will guide the future growth and development of the Borough over the next 15 years, replacing existing core planning strategies. The council has made copies of the plan available at Civic Offices, Council Offices in Carshalton, and all public libraries within the Borough.

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How Many Potential Grey Belt Sites Exist Across England?

Based on early searches, over 70,000 potential sites across England have been identified as potential grey belt. In the Green Belt surrounding London alone, more than 12,800 potential Grey Belt sites have been identified – described as

“a huge opportunity for unlocking new land for development”.

It is estimated that the Grey Belt will unlock the delivery of 100,000 to 500,000 homes across England, though experts question how far this really goes in addressing the nature of the need and the severity of the nation’s housing crisis.

Background: The Development of Sutton’s Green Belt Policy and Grey Belt Classification

Sutton Borough contains 616 hectares of Green Belt land, representing a significant portion of protected open space in South London. Green Belt designation has long been considered a crucial protection against urban sprawl, with the London Green Belt Council monitoring threats to these areas across the capital.

The National Planning Policy Framework (NPPF) paragraph 143 establishes four key purposes of Green Belt designation: checking unrestricted sprawl, preventing neighbouring towns merging, preserving setting and special character of historic towns, and assisting in urban regeneration.

When Was the Grey Belt Category Introduced?

Grey Belt is a term popularised by the Labour Party in April 2024 and officially added to the NPPF in December 2024.

The category was created to address the UK’s housing crisis by allowing development on lower-quality Green Belt land that doesn’t strongly contribute to core Green Belt purposes.

The House of Lords committee has declared that the government’s proposal to reclassify certain areas as “grey belt” land is “largely unnecessary,” though government representatives assert that adjustments to the green belt are merely one aspect of comprehensive housing reforms.

What Recent Housing Initiatives Has Sutton Council Undertaken?

Sutton Council has announced plans to deliver an extra 34 new council homes in Carshalton on a site that has stood empty. Works to build these homes got underway with completion targeted for Spring 2028, with all homes designated for social rent.

The Council agreed to purchase the land in September 2025 as part of ambitious plans to build over 600 new council homes by 2028.

By 2027, the council will complete 75 new council homes at three locations in phase one of development. The Council intends bidding to build over 700 more homes, making a potential total of up to 1,300 new council homes – one of the highest numbers planned in London as a share of current housing stock.

Prediction: How This Development Can Affect South London Residents and Communities

The 1,000+ people currently on Sutton’s housing waiting list could see accelerated access to affordable housing if these grey belt sites are approved. The requirement for 15% more affordable housing on major schemes (up to 50% cap) means residents on the waiting list could have increased opportunities for social rent properties.

Councillor Jake Short, Chair of Sutton Council’s Housing Economy and Business Committee, stated that the new council homes are intended for

“Sutton families on our housing waiting list”.

If the Draft Local Plan is adopted, the three grey belt sites could contribute significantly to meeting this demonstrated need.

How Could Environmental Consequences Affect Local Communities?

Campaigners’ warnings about “lasting environmental consequences” suggest residents may experience reduced green space access, potential impacts on local biodiversity, and changes to the character of Carshalton, Coulsdon, and Wallington areas.

The London Wildlife Trust and other environmental groups will advise on mitigations, but communities may still face changes to their local environment.

Local residents may experience increased construction activity, potential traffic increases during development phases, and changes to neighbourhood character. However, the sustainable location requirement means developments should have access to public transport and active travel options.