- Planning authority
- London Borough of Sutton
- Postcodes
- SM1, SM2, SM3, SM5, SM6
- Noon sun, 21 March
- About 39°
- Shadow from a 5 m eaves line
- About 6.3 m
- Planning plan
- Local Plan
- County
- Greater London
Before you decide in Sutton
Overshadowing is a common objection to garden homes, so we answer it with numbers. At noon on 21 March the sun over Sutton is about 39° above the horizon, and the shadow from a 5 m eaves line reaches about 6.3 m; on 21 December the sun rises to only about 15°.
Using those angles, we model shadows across neighbouring gardens and windows and adjust the height, position or roof shape of the new home until the effect is acceptable. The London Borough of Sutton can then judge the scheme on evidence rather than impressions.
The next steps, locally
When a decision on your Sutton application arrives, we go through it with you line by line. If permission is granted, we explain each condition, which ones must be approved before work starts, and the time limit. If it’s refused, we review the reasons and set out the options, with a straight view on the prospects of each.
Free plot appraisal
We review the title plan, access, constraints, policy and planning history around your address, then talk it through with you. If the plot looks viable we visit, and tell you plainly whether an application is worth making.
Pre-application advice
Where policy is tight or the plot unusual, we put a draft scheme to the council’s planners first. Their written response shows which issues to fix before you pay the full application fee.
Submit and manage
We complete the forms, ownership certificate, drawings and statements, pay the fee on your behalf and submit. During consultation we answer officers’ questions, respond to consultees and agree amendments where they help.
Decision and next steps
If permission is granted, we explain every condition and what must happen before work starts. If it’s refused, we review the reasons with you and set out the options: amend and resubmit, appeal, or stop.
Worth checking early
- Conditions can add cost and work before building starts, such as approved drainage details, tree protection or a construction management plan.
- Neighbours have a formal say during consultation, and the council must weigh any planning objections they raise.
- Planning is the council’s decision; even a well-prepared application can be refused, and the costs of preparing it aren’t recovered.
Your questions, answered for Sutton
Who decides planning applications for garden plots in Sutton?
The London Borough of Sutton decides applications for addresses in Sutton. Small applications are usually decided by planning officers under delegated powers, and national and council rules set out when one can go to the planning committee instead. The decision is based on the council’s Local Plan, national policy and other material considerations, including neighbours’ and consultees’ comments.
Can I sell my Sutton garden plot once it has planning permission?
Yes. Planning permission stays with the land, so the plot can be sold with it and the buyer can build the approved scheme, subject to any conditions. The plot will need its own title through a transfer of part at HM Land Registry, and any mortgage lender will need to release it. Take advice from a tax adviser before selling.
How close to neighbours can a new home in Sutton be?
It depends on the council’s guidance and the window layout. Many councils use around 21 metres between facing back windows and around 12 to 15 metres between a back window and a blank side wall, but the guide used by the London Borough of Sutton decides. Screening, levels, roof form and window positions can all change what is acceptable.
Can my neighbours stop a garden house in Sutton?
Neighbours can object, and the council must take relevant planning objections into account, but they can’t veto an application. Comments about privacy, light, noise from the access, parking and character carry weight; issues like property values or private disputes generally don’t. Talking to neighbours before submitting often helps.
Other options in Sutton
- Build a home for family in your garden
- Garden plot option agreement
- Tandem and landlocked plots
- Sell subject to planning
- Large rear gardens
- Planning promotion for your garden plot

