Area guide
Everything you need to know about buying property in the SG3 postcode area, covering Knebworth and surrounding areas. All price data sourced from HM Land Registry — updated July 2026.
Average price
£312,292
Median price
£322,475
5-year trend
+5.2%
Total sales
4,674
The SG3 area has 184 individual postcodes with 4,674 registered sales. Prices are +21.3% below the national average, with the largest concentration in Knebworth. The five-year price movement is +5.2%.
SG3 averages £312,292, placing it in the upper-mid range. This tier often attracts a mix of professionals, families and investors, with prices +21.3% below the national average. The dataset includes 4,674 recorded sales across 184 postcodes.
The five-year price trend in SG3 is +5.2%, in line with broader UK house price movements.
SG3 6LX
£176,773 avg · 282 sales
SG3 6QT
£183,975 avg · 175 sales
SG3 6AL
£117,415 avg · 143 sales
SG3 6EA
£155,825 avg · 141 sales
SG3 6DT
£157,445 avg · 133 sales
SG3 6DE
£346,930 avg · 118 sales
SG3 6DX
£156,582 avg · 117 sales
SG3 6HP
£181,162 avg · 112 sales
SG3 6BT
£195,092 avg · 94 sales
This SG3 area guide is based on HM Land Registry Price Paid Data, covering registered residential property sales in England and Wales from January 1995 onwards. All figures are historical sold prices, not current valuations or asking prices.
Data last updated: July 2026 · View methodology
The average sold price in the SG3 postcode area is £312,292, based on 4,674 HM Land Registry transactions. The largest town in this area is Knebworth.
Properties in SG3 average £312,292, which is +21.3% below the national average of £396,803 for England and Wales.
SG3 is +21.3% below the national average of £396,803 for England and Wales. The area covers 184 postcodes.
Prices in SG3 have moved +5.2% over five years, reflecting broader UK house price growth. The large sample size gives confidence in this trend.
No. All figures on this page are historical completed sale prices from HM Land Registry Price Paid Data. They are not current valuations, estate agent asking prices, or financial advice. Always seek professional advice before making property decisions.
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