House prices in Swangleys Lane, Knebworth, SG3
12 homes have sold on Swangleys Lane (SG3) since 1995, the first in 1995. Over the last five years the median sold price was £1,065,000 from 3 sales, 126% above the Knebworth median of £471,250and against £471,250 across SG3. Sales here have been detached 92%, semi-detached 8%.
- Median sold price
- £1,065,000
- last five years · 3 sales
- Half of sales were above this price, half below
- Price per sq ft
- £499
- based on 3 of 3 sales
- Sales matched to an EPC floor area
- Sales since 1995
- 12
- 2 in the last 12 months
- Latest sale
- £575,000
- 16 Sept 2025
- vs Knebworth
- +126%
- Knebworth median £471,250
Every sale on Swangleys Lane, SG3
› 3 SG3 6AA · Detached £575,000· 16 Sept 2025
| 16 Sept 2025 | £575,000 | Detached · Freehold | 1,152 sq ft · £499/sq ft | first recorded sale |
› 9 SG3 6AA · Detached £1,265,000· 10 Jul 2025 · 2 sales
| 10 Jul 2025 | £1,265,000 | Detached · Freehold | 2,390 sq ft · £529/sq ft | +69% vs 2015 |
| 4 Dec 2015 | £750,725 | Detached · Freehold | 2,390 sq ft · £314/sq ft | first recorded sale |
› 6 SG3 6AA · Detached £1,065,000· 1 Apr 2022 · 2 sales
| 1 Apr 2022 | £1,065,000 | Detached · Freehold | 2,336 sq ft · £456/sq ft | first recorded sale |
| 19 Nov 2004 | £467,500 | Detached · Freehold | 2,336 sq ft · £200/sq ft | −56% vs 2022 |
› Holly House, 8 SG3 6AA · Detached £506,000· 6 Mar 2009
| 6 Mar 2009 | £506,000 | Detached · Freehold | 3,197 sq ft · £158/sq ft | first recorded sale |
› 5 SG3 6AA · Detached £625,000· 27 Jun 2007
| 27 Jun 2007 | £625,000 | Detached · Freehold | first recorded sale |
› 14 SG3 6AA · Detached £485,000· 19 Dec 2002
| 19 Dec 2002 | £485,000 | Detached · Freehold | first recorded sale |
› 10a SG3 6AA · Detached £318,000· 21 Sept 2000
| 21 Sept 2000 | £318,000 | Detached · Freehold | 1,518 sq ft · £210/sq ft | first recorded sale |
› 6a SG3 6AA · Detached £193,000· 24 Jun 1997
| 24 Jun 1997 | £193,000 | Detached · Freehold | first recorded sale |
› 13 SG3 6AA · Semi-detached £135,000· 11 Nov 1996
| 11 Nov 1996 | £135,000 | Semi-detached · Freehold | first recorded sale |
› 11 SG3 6AA · Detached £272,500· 7 Jul 1995
| 7 Jul 1995 | £272,500 | Detached · Freehold | 1,636 sq ft · £167/sq ft | first recorded sale |
At your size
A 90 m² (970 sq ft) home in SG3 is worth roughly £403k–£503k at the district's typical £416–£519 per square foot (245 sales, two years) — a range, not a valuation.
Check your addressAll sold prices in Knebworth· SG3 district on the Knebworth page
Track Swangleys Lane, SG3
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Sources and method. Sales completed to July 2026, as registered by 29 Aug 2026 · headline figures cover the 12 months to May 2026 (later months are still being registered).Next HM Land Registry release ~28 Sept 2026. Medians unless stated; averages only where 30 or more sales. Category A sales only (standard price-paid transactions), houses and flats.
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Floor areas derived from Energy Performance Certificate data © Crown copyright, licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0.
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