airspace development right to light
Airspace schemes, mansards, rooftop extensions, and vertical additions, often trigger right to light exposure for neighbouring windows. AKT Surveyors help you model risk early, design out injuries, and navigate negotiation/insurance so viable height remains on the table.
What is “Airspace Development Right to Light”?
It’s the application of the legal right to light (a long-established easement) to vertical additions. Even where your scheme passes BRE Daylight & Sunlight for planning, neighbours may still claim right to light injury—which can lead to injunctions (cut-backs) or damages (compensation). We assess that risk, propose mitigations, and support settlement or insurance where appropriate.
2-4 Ringers Road, Bromley
Wadworth Brewery, New Park Street
360, 17 Marlborough Street, Bristol
At-a-Glance: Which Service Do You Need?
| Service | Best For | Key Outputs | Typical Timeline* |
|---|---|---|---|
| Feasibility Screening | Early design, option testing, internal decisions | Risk grading by elevation and property, quick mitigation pointers, headline exposure commentary | 2–5 working days |
| Full Right to Light Report | Formal neighbour engagement, insurance, legal strategy | 3D model, window schedules, injury mapping, mitigation testing, negotiation plan | 1–3 weeks (scale dependent) |
| Insurance Support | Residual risk on consented or advanced schemes | Evidence pack, claim scenarios, liaison with brokers and insurers | Runs in parallel with reporting |
*Subject to drawings/data availability and scheme scale.
Rapid Feasibility Screening (RIBA 0–2)
Early, proportionate advice to shape massing before design crystallises.
- Desktop review and context modelling
- Risk grading by elevation and property
- Early mitigation pointers to protect target storeys
Full Right to Light Reports
- 3D modelling of receptors and proposed massing
- Window-by-window injury analysis
- Design testing: setbacks, step-backs, chamfers, cut-backs, lightwells
- Negotiation strategy and settlement guidance
Why AKT Surveyors
- Airspace specialists in right to light across London boroughs
- Actionable modelling that protects floor area and programme
- Negotiation-ready documentation used by insurers and legal teams
- End-to-end support: feasibility → report → settlement/insurance
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.
Not always – but vertical additions often increase exposure for nearby windows. Early feasibility highlights where risk concentrates.
No. BRE covers planning amenity; right to light is a legal easement. You can pass BRE and still face RoL exposure.
If feasibility shows material injury or you expect engagement/insurance, a court-standard report supports negotiation and underwriting.
Specialist policies exist. Insurers typically require a full report and clear mitigation testing before quoting terms.
Existing/proposed plans, sections, elevations, storey heights and roof forms (DWG ideal; scaled PDFs acceptable).