Grantham - NG31
The average house price in Grantham (NG31) was £229,311 in 2025, up 395% from £46,309 in 1995. Prices peaked at £231,643 in 2024.
Over the last ten years, average prices have risen 41% (from £162,505 in 2015). The median sale price in 2025 was £208,750 across 676 sales. 27,218 transactions have been recorded in NG31 since 1995.
So far in 2026, 170 sales have been recorded at an average price of £236,062 (year to date).
2025 prices at a glance
| Property type | Average price | Median price | Sales |
|---|---|---|---|
| All types | £229,311 | £208,750 | 676 |
| Detached | £321,726 | £315,000 | 220 |
| Semi-detached | £208,006 | £200,000 | 222 |
| Terraced | £173,833 | £169,975 | 190 |
| 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.