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Price per square foot explained: how to use it when buying
5 min read · Updated June 2026
When you compare two properties priced at £400,000, are they equally good value? Not if one is 900 sq ft and the other is 1,200 sq ft. Price per square foot strips out the size variable and gives you a consistent unit of comparison — the same way you'd compare supermarket products by price per 100g rather than total price.
How to calculate it
The formula is simple:
Example: A property sold for £480,000 with a floor area of 1,100 sq ft = £436 per sq ft.
You can also work in square metres (price per sq m = sale price ÷ floor area in sq m). The UK property market uses both — estate agent particulars often list sq ft, while EPC certificates list sq m. 1 sq m = 10.764 sq ft.
Where to find floor area data
Floor area is included on every EPC certificate. Since most properties sold since 2008 are required to have an EPC, the data is widely available. You can find it via:
- The EPC register at find-energy-certificate.service.gov.uk
- The estate agent particulars — most include floor plans with room dimensions
- movegrid — surfaces EPC data including floor area alongside the property search
Note: EPC floor area measures the internal heated floor area. It excludes garages, outbuildings, and unheated spaces — so two EPCs can look comparable even if one property has a large garage the other doesn't. Check the floor plans.
UK price per square foot benchmarks (2026)
These are approximate averages. Actual figures vary significantly by street, condition, and property type.
Why price per sq ft isn't the whole story
A property priced above the local average per sq ft might still be worth paying. A property priced below it might be a problem. The metric tells you whether you're paying a premium or a discount — not whether that premium or discount is justified.
Common reasons a property commands above-average price per sq ft:
- Recently renovated to a high standard
- Exceptional location within the postcode (south-facing garden, quiet road, views)
- Unusual features like a double garage, large garden, or home office
- Top school catchment area
Common reasons a property sits below average:
- Poor condition or significant work needed
- Ground floor flat or north-facing with limited light
- Awkward layout that makes the space feel smaller than the sq ft suggests
- Busy road, flight path, or other external factor
Using it to negotiate
If a property is priced at £520 per sq ft and comparable recent sales in the same street are at £470–£490, you have a data-backed basis for an offer. The seller or agent may argue condition, garden, or other factors justify the premium — but you're starting from evidence, not instinct.
Used alongside asking-vs-sold price analysis and a reading of the property's price history, price per sq ft gives you a complete picture before you commit to an offer.
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