Conservation areas across Islington protect the Georgian terraces of Canonbury, Barnsbury, and Islington Square, alongside Victorian housing through Holloway, Highbury, and Tufnell Park, and active mid-rise and conversion projects across the borough. Almost all the older residential stock has windows that have received natural light for well over the 20 years required to acquire the easement under the Prescription Act 1832. Conversion schemes, mid-rise residential redevelopment, and significant infill all routinely raise rights of light questions, with London Borough of Islington planning consent not addressing that legal position.
We act on Islington schemes from the London head office, with reach across Canonbury, Highbury, Holloway, and Angel, 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 Islington projects requiring daylight and sunlight reports on the same planning submission.
The surveyor's first job on an Islington project is the initial appraisal, identifying which neighbouring windows are likely to carry an acquired right and where the proposed massing creates the most risk. Specialist rights of light software then models the existing and proposed light levels, with results tested against the Equivalent First Zone and the 50/50 rule to quantify any loss. Where modelling shows likely infringement, the cutback analysis works through design variations until the scheme sits within acceptable parameters.
For Islington schemes that often means warehouse-to-residential conversions, mid-rise residential blocks, conservation area infill, and rooftop conversions where airspace development advice often runs alongside. Calls go through to a qualified surveyor rather than a call centre, and the free initial assessment is offered up front. The London team handles negotiations with adjoining owners through to settlement where required.
In most cases, yes. The path forward is usually a negotiated settlement with the adjoining owner, paid in exchange for a release of their legal right to light against the new building. Damages are typically calculated by reference to the share of the development profit attributable to the part of the scheme causing the infringement, and the figure is significantly easier to predict when the rights of light position has been quantified at the design stage. Injunctions are rare where matters are handled properly and early.
Planning consent from the London Borough of Islington does not resolve the rights of light position, so the legal track has to run alongside the planning track on every Islington scheme that sits close to existing windows. A free initial assessment is the fastest way to put a number on the risk.
