
Right to Light Surveyors in London
Fast, independent right to light assessments for homes and developments across Greater London, clear reports, pragmatic negotiation, and designs that move forward.

London Right to Light Experts
Planning an extension or new development in the capital? Our specialist right to light surveyors help homeowners, architects and developers across Greater London assess risk, protect amenity, and negotiate practical solutions. We deliver independent advice, fast reporting and clear next steps—whether you’re safeguarding your property or progressing a scheme.
Serving all London boroughs including Westminster, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth, Kensington & Chelsea, Hammersmith & Fulham, Brent, Ealing, Hounslow, Haringey, Barnet, Enfield, Greenwich, Lewisham, Bromley, Croydon, Merton, Kingston, Richmond, Harrow, Hillingdon, Redbridge, Newham, Barking & Dagenham, Bexley, Havering and Sutton.
What Is a Right to Light?
A right to light is a private legal right allowing a property’s “qualifying” windows to receive sufficient natural light. If a proposed building or extension causes unreasonable interference, the affected owner may be entitled to seek an injunction or damages.


Key points:
It’s distinct from planning “daylight & sunlight” policy: right to light is a civil matter.
Rights can arise by express grant, prescription (typically after 20 years’ uninterrupted light), or by implication.
Surveyors test impact using accepted methods (e.g. Waldram analysis and the 50/50 adequacy rule) to judge whether rooms remain adequately lit.
Solutions range from design adjustments (setbacks, chamfers, lightwells) to negotiated settlements.
Not sure if your windows qualify? We’ll review your plans and advise on risk, proportionality and route to agreement.
Faq
Got questions about right to light in London?
Below are answers to the most common right to light questions we receive from London homeowners, architects and developers covering law, process, fees and what to send us.
A right to light is a private easement benefiting specific windows. It may be created by deed, by long use (usually 20 years uninterrupted light), or by implication. If development causes a material/ actionable loss of light to rooms that previously enjoyed adequate light, the affected owner may seek an injunction or compensation. Each case turns on expert evidence and proportionality.
A focused check can be turned around in 1–2 days; a full 3D analysis/report is typically 1–3 weeks, depending on drawing quality, access to neighbour data and project scale.
Existing & proposed plans, elevations and sections (DWG preferred)
Site location plan with levels and footprints of immediate neighbours if available
Window schedules (heights/sill levels) and any verified survey data
Planning history or constraints you’re aware of
It’s strongly recommended. While right to light is separate from planning, early testing helps de-risk design, avoid late-stage redesigns, and supports smoother neighbour relations and programme.
No. Planning permission and right to light are separate. Even with consent, a neighbour could still claim for unreasonable loss of light. Early right to light testing helps align your design with both planning policy and private rights.
Not always. Options include targeted design tweaks (setbacks, chamfers, lightwells), protective measures (obstruction agreements), or a negotiated settlement where proportionate. We’ll model scenarios, compare costs vs. programme impact, and recommend the most practical route.