House prices in SG3Postcode district: sold prices by sector
The median home in SG3 sold for £463,750 between July 2025 and June 2026, based on 112 sales registered with HM Land Registry.
In North Hertfordshire, prices rose by 5.3% in the year to July 2026, according to the UK House Price Index.
Price per sq ft and per m²
We work out the price per sq ft from sales matched to the floor area on their energy certificate. In SG3, fewer than 20 matched sales exist so far, so we do not publish this figure yet. The number of matched sales grows every month.
Median price by property type in SG3
Sales between July 2025 and June 2026. A figure needs at least 11 sales.
| Property type | Median price | Middle half of sales | Sales |
|---|---|---|---|
| Detached | £812,500 | £588,750 to £911,750 | 26 |
| Semi-detached | £500,000 | £471,250 to £568,750 | 30 |
| Terraced | £400,000 | £344,625 to £450,500 | 32 |
| Flat | £271,000 | £228,375 to £303,750 | 24 |
Median price each year since 1995
Years with fewer than 11 sales are left out.
Show the figures for each year
| Year | Median price | Sales |
|---|---|---|
| 2025 | £470,000 | 145 |
| 2024 | £450,000 | 125 |
| 2023 | £420,000 | 75 |
| 2022 | £443,750 | 110 |
| 2021 | £470,000 | 176 |
| 2020 | £471,000 | 122 |
| 2019 | £415,000 | 113 |
| 2018 | £419,950 | 101 |
| 2017 | £385,000 | 117 |
| 2016 | £397,475 | 134 |
| 2015 | £340,000 | 117 |
| 2014 | £311,500 | 140 |
| 2013 | £280,000 | 100 |
| 2012 | £273,250 | 110 |
| 2011 | £237,000 | 86 |
| 2010 | £280,500 | 98 |
| 2009 | £250,000 | 85 |
| 2008 | £248,000 | 81 |
| 2007 | £250,000 | 211 |
| 2006 | £230,000 | 183 |
| 2005 | £232,500 | 158 |
| 2004 | £212,500 | 159 |
| 2003 | £199,950 | 179 |
| 2002 | £163,500 | 189 |
| 2001 | £135,000 | 181 |
| 2000 | £121,500 | 198 |
| 1999 | £105,000 | 215 |
| 1998 | £100,000 | 207 |
| 1997 | £75,000 | 243 |
| 1996 | £86,000 | 185 |
| 1995 | £77,000 | 137 |
Price map around SG3
Each small area is raised and coloured by its median price over the last 24 months. Hatched areas have too few sales for their own figure.
North Hertfordshire: house prices, area by area.
- Over one year
- Compared with England and Wales
- Sales
Loading the map
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This browser cannot show the relief map. Please try a more recent browser. Prices by area are listed on the house prices pages.
Latest sold prices in SG3
The most recent sales in each postcode sector of SG3, registered up to August 2026.
Postcode sector SG3 6
| Address | Date | Price | Type |
|---|---|---|---|
| 84 London Road, Knebworth SG3 6HB | 14 Aug 2026 | £292,000 | Flat |
| Old Lane House Old Lane, Knebworth SG3 6AE | 14 Aug 2026 | £875,000 | Detached |
| 19 Hay Wains, Woolmer Green Knebworth SG3 6HW | 14 Aug 2026 | £590,000 | Semi-detached |
| 92 Pondcroft Road, Knebworth SG3 6DE | 31 Jul 2026 | £677,000 | Semi-detached |
| 8 Constance Place, Knebworth SG3 6EE | 30 Jul 2026 | £290,000 | Flat |
| 13 Abbots Close, Datchworth Knebworth SG3 6TA | 28 Jul 2026 | £640,000 | Semi-detached |
| 49 Brookbridge Lane, Datchworth Knebworth SG3 6SZ | 28 Jul 2026 | £550,000 | Terraced |
| Holly House, 8 Swangleys Lane, Knebworth SG3 6AA | 24 Jul 2026 | £1,500,000 | Detached |
| 84 Wadnall Way, Knebworth SG3 6DX | 24 Jul 2026 | £217,500 | Flat |
| Meadow View Gipsy Lane, Knebworth SG3 6DJ | 23 Jul 2026 | £710,000 | Semi-detached |
| 26 Orchard Way, Knebworth SG3 6BU | 22 Jul 2026 | £472,500 | Semi-detached |
| 18 Carvers Croft, Woolmer Green Knebworth SG3 6LX | 10 Jul 2026 | £450,000 | Terraced |
| Flat 10, Park Lane Court, 2 Park Lane, Knebworth SG3 6EW | 3 Jul 2026 | £285,000 | Flat |
| 26 New Close, Knebworth SG3 6NU | 1 Jul 2026 | £665,000 | Semi-detached |
| 79 Dunnock Close, Knebworth SG3 6FR | 29 Jun 2026 | £550,000 | Semi-detached |
| 29 Carvers Croft, Woolmer Green Knebworth SG3 6LX | 26 Jun 2026 | £250,000 | Flat |
| 23 Gun Road Gardens, Knebworth SG3 6ED | 26 Jun 2026 | £525,000 | Terraced |
| Flat 8, Wordsworth Court, 1 Park Lane, Knebworth SG3 6DY | 26 Jun 2026 | £234,500 | Flat |
| 9 Great Lawne, Datchworth Knebworth SG3 6SX | 19 Jun 2026 | £520,000 | Terraced |
| 10 Lowe House, Knebworth SG3 6EU | 12 Jun 2026 | £315,000 | Flat |
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
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Questions about house prices in SG3
How much does a house cost in SG3?
The median price of a home sold in SG3 between July 2025 and June 2026 was £463,750, from 112 sales. Half of these homes sold for between £340,125 and £576,250.
How much does a terraced house cost in SG3?
The median price of a terraced house in SG3 was £400,000 over the last 12 complete months, from 32 sales.
Which type of home costs the most in SG3?
Detached houses sold for the most, with a median of £812,500. Flats sold for the least, with a median of £271,000.
Are house prices going up in SG3?
Yes. In North Hertfordshire, prices rose by 5.3% in the year to July 2026, according to the UK House Price Index.
How many homes sell in SG3 each year?
112 homes sold in SG3 in the last 12 complete months, and 266 over the last 24 months.
Where do these prices come from?
Every sale comes from the Price Paid Data of HM Land Registry, which records the price of every home sold in England and Wales since 1995. We keep standard sales at market value of houses and flats (category A) and leave out repossessions, transfers to companies and other special sales. Price changes over a year come from the UK House Price Index, published by HM Land Registry with the Office for National Statistics.
More prices near SG3
Places near SG3
- Knebworth266 sales
- Woolmer Green52 sales
- Datchworth31 sales
- Old Knebworth12 sales
- Welwyn288 sales
- Aston23 sales
- Codicote174 sales
- Watton at Stone62 sales
- Tewin29 sales
- Chells19 sales
Postcode districts nearby
- Postcode district AL6288 sales
- Postcode district SG21,003 sales
- Postcode district SG11,186 sales
- Postcode district AL8323 sales
- Postcode district AL7802 sales
- Postcode district SG14651 sales
- Postcode district SG41,010 sales
- Postcode district SG13557 sales
Local authority
- North Hertfordshire3,929 sales
- Welwyn Hatfield2,515 sales
- East Hertfordshire4,623 sales
Region
Sales registered up to August 2026. Read how we calculate the figures.