The four town centres of Sutton, Cheam, Carshalton, and Wallington anchor the borough, with Edwardian and Victorian housing throughout, conservation areas protecting older streets in Carshalton and Cheam Village, and ongoing town centre regeneration around Sutton High Street. Almost all the older stock carries windows that have received natural light for well over the 20-year easement threshold under the Prescription Act 1832, which means town centre redevelopment, mid-rise residential schemes, and conversion projects all routinely raise rights of light questions. London Borough of Sutton planning consent does not address that legal position.
We act on Sutton schemes from the London head office, with reach across Sutton, Cheam, Carshalton, and Wallington, supported by colleagues in Essex and Hampshire. CHP is RICS regulated and has been advising on rights of light since 2004. The London team handles this work with specialist focus, with most projects requiring daylight and sunlight reports on the same planning submission.


Every Sutton project starts with a free initial assessment of the proposed scheme against the surrounding context. We identify which neighbouring windows are likely to carry the 20-year easement and the points of the proposed massing most likely to cause an issue. A full rights of light analysis follows using specialist software, with the existing and proposed light levels modelled and tested against the Equivalent First Zone and the 50/50 rule for each affected room.
Where modelling shows likely infringement, the cutback analysis tests design variations including reduced ridge heights, set-back upper floors, and adjusted fenestration until the scheme works for both the planning case and the rights of light position. For Sutton that typically means town centre redevelopment around Sutton High Street, mid-rise residential blocks, conservation area infill in Carshalton and Cheam, and rooftop conversions where airspace development advice often runs alongside.
An infringement does not automatically stop a Sutton scheme, but it does expose the developer to either an injunction, which can require alteration or in extreme cases demolition of the offending part of the building, or a damages award calculated as a share of the development profit attributable to the lost light. Most matters resolve through negotiation, with a release of rights agreed in return for a settlement payment to the adjoining owner.
Quantifying the position before drawings are signed off gives the design team room to cut back massing, reposition windows, or rework the upper floors at a stage when changes are still affordable. Where settlement is the right route, we handle the negotiation through to a deed of release. A free initial assessment is the fastest way to put a number on the Sutton risk.
