Average price per square foot in NN4 (Northampton) — July 2026
£328
avg £/sqft (indexed to today)
£292,500
median sold price
1041 sqft
average floor area
+10.4%
new-build premium (487 new-build sales)
£/sqft by property type
| Type | Avg £/sqft (today) | Median price | Sales |
|---|---|---|---|
| Detached | £350/sqft | £400,000 | 1,841 |
| Semi-detached | £338/sqft | £274,010 | 1,248 |
| Terraced | £296/sqft | £230,000 | 989 |
| Flat | £284/sqft | £154,000 | 497 |
Trend (raw sold £/sqft by year)
| Year | Avg £/sqft |
|---|---|
| 2023 | £314/sqft |
| 2024 | £317/sqft |
| 2025 | £319/sqft |
| 2026 | £314/sqft |
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Nearby districts: NN1 · NN10 · NN11 · NN12 · NN13 · NN14 · NN15 · NN16 · all areas
Method: Land Registry sales (2021–present) in postcode district NN4, matched to EPC floor areas, HPI-indexed to today, 2nd–98th percentile trimmed. Open Government Licence data (HM Land Registry, EPC Register, ONS, UK HPI). Estimates for research, not RICS valuations. Updated July 2026.