SG3 house prices and area facts
The SG3 postcode district in Knebworth, mostly in North Hertfordshire.
In 2025, 145 homes sold in SG3 for a median of £470,000, 0.2% less than in 2020.
- Median sold price, 2025
- £470,000145 sales
- Five-year change
- -0.2%In the median price since 2020
- Recorded crime
- 53A year per 1,000 residents; England and Wales 100
- Flood risk
- 33.7%Of homes at high, medium or low risk from rivers, the sea or surface water
- Gigabit broadband
- 77.8%Of premises can get it
- Deprivation
- 0%Of postcodes in the nation's most deprived fifth of neighbourhoods
- Homes
- 2,947With a recorded sale or an energy certificate
House prices since 1995
Median price of every recorded sale each year.
| Type | Median price | Sales |
|---|---|---|
| Detached | £725,000 | 30 |
| Semi-detached | £502,000 | 55 |
| Terraced | £397,500 | 36 |
| Flats | £257,500 | 24 |
These figures describe SG3 as a whole, not any particular home. Crime is counted where it is recorded and divided by residents, so town centres with few residents show high rates; it does not measure personal safety. Sold prices: HM Land Registry. Crime: police.uk. Flood: Environment Agency and Natural Resources Wales. Broadband: Ofcom. Deprivation: the English and Welsh indices of deprivation. Licences.
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