Harlow's post-war new town heritage means most of the residential estates were built between the late 1940s and 1970s, with windows that have been receiving natural light for decades and comfortably pass the 20-year easement threshold under the Prescription Act 1832. Town centre regeneration, vertical infill on existing residential blocks, and new builds on cleared plots all routinely back onto established stock where adjoining owners may have acquired rights. Harlow District Council planning consent does not address that legal position, which sits in a separate track.
We act on Harlow schemes from the Wickford office, with reach across Old Harlow, Church Langley, and Sawbridgeworth, supported by colleagues in London and Hampshire. CHP has been delivering rights of light work since 2004 and is RICS regulated. The local Essex team handles this work faster than London-led practices, and we can also pull in our rights of light assessments overview where it helps the wider design team understand the process.
The starting point on every Harlow project is a free initial assessment to identify which neighbouring windows could be affected by the proposed scheme and which carry the 20-year easement. From there, we use specialist rights of light software to model existing and proposed light levels for each affected room, with the results tested against the Equivalent First Zone and the 50/50 rule to quantify any loss in legal terms.
Where the figures show a likely infringement, the cutback analysis tests design variations including reduced height, set-back upper floors, and adjusted fenestration until the scheme works for both the planning case and the rights of light position. Most Harlow projects also call for daylight and sunlight reports as part of the same Harlow District Council planning submission, and we run both pieces of work from one team to keep them aligned. Calls go through to a qualified surveyor rather than a call centre.
An infringement does not automatically stop a Harlow 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 by reference to 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 Harlow risk.
