Mansion blocks and Georgian terraces define much of Camden's residential pattern, alongside Victorian housing in Kentish Town and Camden Town, and recent mid-rise and tall building development around King's Cross, Euston, and Tottenham Court Road. Almost all the older stock has windows that have received natural light for well over the 20-year easement threshold under the Prescription Act 1832, which means King's Cross-area schemes, mansion block additions, and tall building development all routinely raise rights of light questions. London Borough of Camden planning consent does not address that legal position.
We act on Camden schemes from the London head office, with reach across Bloomsbury, Camden Town, Kentish Town, and Hampstead, 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, and we can pull in our rights of light assessments overview where it helps the wider design team understand the process.


Every Camden project starts with a free initial assessment of the proposed scheme. 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 Camden that typically means tall buildings around King's Cross and Euston, infill on the established streets, and additions to mansion blocks. Where the work overlaps with the Party Wall etc. Act 1996, we coordinate party wall services from the same team.
A good outcome means the Camden scheme is viable, the impact on neighbouring windows has been quantified and addressed, and any infringement has been resolved on agreed terms before construction starts. For most local developments, that means a few design adjustments at the planning stage and a negotiated release of rights where any residual impact remains. Court action is rare when the rights of light position is identified and worked through early on the project.
Adjoining owners on Camden streets affected by a nearby development can equally instruct us to assess the impact, advise on the strength of their legal position under the acquired easement, and consider Light Obstruction Notices where formal protection of acquired light is the right step. Where rooftop or upper-floor work is in play, we can also bring in airspace development advice from the same team.
