There is no universal sunlight premium
A claim that a sunny home is automatically worth a particular percentage more is not a sound basis for a purchase, sale or investment. The effect depends on the local market, climate, floor, layout, views, condition and available alternatives. A hot west-facing room may be a drawback to one buyer and an advantage to another.
The RICS guidance on comparable evidence explains the role of relevant market evidence in valuation. It does not provide a universal sunlight uplift. Use a qualified local valuer when you need a valuation rather than a personal preference comparison.
Describe the benefit precisely
“Morning sun in the kitchen” is more useful than “excellent light.” Record which room or outdoor space benefits, at what time and in which season. Distinguish direct sunlight from general daylight and an open view: these features can overlap, but are not interchangeable.
- Does the light reach an area people actually use?
- Is there enough daylight on an overcast day?
- Can occupants control glare and summer heat?
- Do nearby buildings or balcony ceilings change the seasonal pattern?
Compare similar homes without pretending they are identical
When reviewing recent local sales with an agent or valuer, discuss sunlight alongside floor area, condition, floor level, outdoor space and location. A higher price for a sunny apartment does not prove sunlight caused the entire difference. Asking prices and attractive listing photos are especially weak evidence for isolating a premium.
Use a shadow map as supporting context
Coffee in the Sun can help identify surrounding building shadows to investigate at the address. It does not value property, certify indoor daylight or determine rights to light. Its building model excludes trees, awnings and terrain, and it does not calculate sunlight at a specific apartment floor or through a window.
If a proposed development could affect a decision, consult the relevant planning documents and a suitably qualified professional. A consumer map of current mapped buildings cannot substitute for that assessment.
A better way to present a home
Use representative photographs with dates and times, describe the orientation of important windows and avoid suggesting a single sunny visit represents the whole year. For buyers, turn those details into questions for a second viewing.
Our property sunlight guide and viewing checklist help you collect consistent observations. They support a discussion about suitability; they are not a valuation.
