House prices in SG3
Median value — November 2026
£523,000
Modelled from 2,175 properties Stede tracks in SG3
Market snapshot
£523,000
Median value
£595,482
Average value
87
Sales in the last 12 months
+1%
Change over the past year
Value over time
- Modelled value
- Projected
Modelled month by month from the UK House Price Index, averaged across every property type Stede tracks here.
View as a table
| Year | Modelled value |
|---|---|
| 2000 | £141,738 |
| 2001 | £162,619 |
| 2002 | £197,130 |
| 2003 | £226,268 |
| 2004 | £251,189 |
| 2005 | £254,577 |
| 2006 | £279,841 |
| 2007 | £297,288 |
| 2008 | £268,978 |
| 2009 | £267,145 |
| 2010 | £288,136 |
| 2011 | £284,304 |
| 2012 | £290,226 |
| 2013 | £310,039 |
| 2014 | £348,652 |
| 2015 | £396,077 |
| 2016 | £429,664 |
| 2017 | £450,905 |
| 2018 | £449,954 |
| 2019 | £437,725 |
| 2020 | £463,255 |
| 2021 | £471,821 |
| 2022 | £491,561 |
| 2023 | £493,380 |
| 2024 | £512,768 |
| 2025 | £518,322 |
| 2026 | £523,000 |
Property types
- Detached house31%£837,000
- Semi-detached house27%£551,000
- Mid-terrace house24%£390,000
- Flat / Maisonette17%£232,000
- Property0%£600,500
Recent sales
- The Conifers, Gipsy Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DJ£650,000 · 2026£679,000
- 22 Stockens Dell, Knebworth, North Hertfordshire, Hertfordshire, SG3 6BG£510,000 · 2026£581,000
- 19 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH£394,000 · 2026£417,000
- 14 Abbots Close, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6TA£650,000 · 2026£621,000
- 87 Brookbridge Lane, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SZ£590,000 · 2026£591,000
- 111 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DT£315,000 · 2026£339,000
- 1 Harold Villas, 8, Gun Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AU£808,000 · 2026£845,000
- 84 London Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6HB£292,000 · 2026£298,000
Addresses in SG3
- 12 Flat 1, Park Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6PF£112,000 · 2024£120,000
- 12 Flat 3, Park Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6PF£186,000 · 2006£368,000
- 12 Foldingshott, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SR£295,000 · 2006£545,000
- 12 Garden Road, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JZ£655,000 · 2023£677,000
- 12 Great Lawne, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SX£201,000 · 2004£439,000
- 12 Holly Road, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6LL£510,000 · 2022£505,000
- 12 Kerr Close, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AB£129,000 · 2002£331,000
- 12 Longmead, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JH£77,000 · 1997£374,000
- 12 Lowe House, Knebworth, North Hertfordshire, Hertfordshire, SG3 6EU£480,500 · 2025£478,000
- 12 Mardleybury Court, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6LP£272,000 · 2025£276,000
- 12 Mardleybury Road, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6LT£49,950 · 1997£367,000
- 12 Meadow Close, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6TD£375,000 · 2005£682,000
- 12 Milestone Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DA£130,000 · 1996£700,000
- 12 Milk Churn Way, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6FF£486,000 · 2021£498,000
- 12 New Close, Knebworth, North Hertfordshire, Hertfordshire, SG3 6NU£346,000 · 2011£648,000
- 12 Oak Tree Gardens, Knebworth, North Hertfordshire, Hertfordshire, SG3 6EQ£700,000 · 2026£707,000
- 12 Peters Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6HP£284,995 · 2015£387,000
- 12 Pondcroft Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DB£289,000 · 2010£546,000
- 12 Raffin Close, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6RP£285,000 · 2003£628,000
- 12 Raffin Park, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6RR£380,000 · 2014£618,000
- 12 St Martins Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6ER£192,500 · 1995£1,030,000
- 12 Station Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AP£450,000 · 2021£450,000
- 12 Stevenage Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AW£920,000 · 2025£995,000
- 12 The Green, Old Knebworth, Knebworth, North Hertfordshire, Hertfordshire, SG3 6QN£599,950 · 2014£767,000
- 12 Twin Foxes, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6QT£235,000 · 2003£510,000
- 12 Watton Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AH£860,000 · 2016£968,000
- 12 Westland Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6AS£299,950 · 2012£519,000
- 12 White Cross Drive, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6FA£518,200 · 2021£558,000
- 12 Wolves Mere, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JW£172,000 · 1999£603,000
- 12 Woodstock, Knebworth, North Hertfordshire, Hertfordshire, SG3 6EA£363,000 · 2020£433,000
- 120 Bramfield Road, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SA£2,870,000 · 2025£1,945,000
- 120A, London Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6HB£215,000 · 2026—
- 121 Unit 9, London Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6EX£250,000 · 2007£314,000
- 121 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DT£350,000 · 2025£373,000
- 122 Bramfield Road, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SA£1,250,000 · 2016£1,255,000
- 122 London Road, Knebworth, North Hertfordshire, Hertfordshire, SG3 6HB£140,000 · 2006£179,000
- 122 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DX£175,000 · 2003£397,000
- 123 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DT£298,000 · 2020£368,000
- 124 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DX£410,000 · 2023£438,000
- 125 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DT£345,000 · 2023£376,000
- 126 Bramfield Road, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SA£1,950,000 · 2016£1,878,000
- 126 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DX£350,000 · 2024£394,000
- 128 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DX£385,000 · 2025£424,000
- 129 Wadnall Way, Knebworth, North Hertfordshire, Hertfordshire, SG3 6DT£128,000 · 2001£405,000
- 12A, Datchworth Green, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6TL£249,000 · 1997£1,018,000
- 12A, Deards End Lane, Knebworth, North Hertfordshire, Hertfordshire, SG3 6NL£1,460,000 · 2023£1,511,000
- 13 Abbots Close, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6TA£640,000 · 2026£651,000
- 13 Bridge Road, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6JL£482,000 · 2022£520,000
- 13 Broadfield Road, Woolmer Green, Knebworth, Welwyn Hatfield, Hertfordshire, SG3 6LZ£420,000 · 2018£485,000
- 13 Brookbridge Lane, Datchworth, Knebworth, East Hertfordshire, Hertfordshire, SG3 6SU£282,500 · 1996£1,197,000
About this area
SG3 is a UK postcode district. Stede can model 2,175 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of November 2026, SG3 has a median estimated value of £523,000 and an average of £595,482.
Modelled values in SG3 are +1% over the past year and +11% over five years.
The market here is mostly detached houses, which make up 31% of the properties Stede tracks in SG3.
87 sales were recorded in SG3 over the past 12 months.
Common questions
What is the average house price in SG3?
As of November 2026, the average estimated value is £595,482 and the median is £523,000 across 2,175 properties Stede tracks in SG3. This is not a formal market valuation.
Are house prices in SG3 going up or down?
Modelled values in SG3 are +1% over the past year and +11% over five years, based on the UK House Price Index.
What types of property are in SG3?
31% of the properties Stede tracks in SG3 are detached houses. semi-detached houses are next most common, at 27%.
How many properties are in SG3?
Stede can model 2,175 properties in SG3, with 87 recorded sales in the past 12 months.
How does Stede calculate house prices for SG3?
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources used for every individual property valuation on Stede. Full detail is on the methodology page.
How we calculate this
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources behind every individual property valuation on Stede.
Read the full methodology and data sources →