Grantham - NG31
The average house price in Grantham (NG31) was £230,330 in 2025, up 397% from £46,309 in 1995. Prices peaked at £231,567 in 2024.
Over the last ten years, average prices have risen 42% (from £162,505 in 2015). The median sale price in 2025 was £210,000 across 694 sales. 27,330 transactions have been recorded in NG31 since 1995.
So far in 2026, 263 sales have been recorded at an average price of £238,355 (year to date).
2025 prices at a glance
| Property type | Average price | Median price | Sales |
|---|---|---|---|
| All types | £230,330 | £210,000 | 694 |
| Detached | £322,267 | £314,975 | 230 |
| Semi-detached | £207,646 | £198,750 | 226 |
| Terraced | £174,077 | £169,975 | 194 |
| Flats/maisonettes | £114,294 | £110,000 | 44 |
Price
Type
Average Price by Year
Median Price by Year
Transaction Volume by Year
Data source: UK Land Registry Price Paid Data. Inflation data: ONS CPI series D7BT. Real prices expressed in 2026 pounds.