Our Data Sources
11, Swangleys Lane, Knebworth has no recent1 records in the Land Registry and a single entry in the EPC database dated May 2026.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 11, Swangleys Lane, Knebworth is in very good condition we estimate a sale value of £862,085 and a rental value of £3,113 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £763,561 and a rental value of £2,757 per month.
Plot Size
According to data from HM Land Registry, 11, Swangleys Lane, Knebworth sits on a plot of 1,817 m2.
We have plot size data on 14 out of 18 other houses in the postcode and 11, Swangleys Lane, Knebworth sits on the 2nd largest plot.
Energy Efficiency
11, Swangleys Lane, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 21 May 2026.
The property is connected to mains gas and has high performance glazing. It is heated using air source heat pump (underfloor, electric).
Sold Prices
According to HM Land Registry, 11, Swangleys Lane, Knebworth was last sold on 7th July 1995 for £272,500 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Jul 1995£272,500
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 74 sales of properties similar to 11, Swangleys Lane, Knebworth within a radius of 1.0 kilometres since 2007.
The most recent example is 7A, Stockens Green, Knebworth, SG3 6DG, a freehold house which sold for £846,500 on the 20th February 2026.
Read more about house prices in SG3.
- Sold Feb 2026£846,500 | 4 Bed House7A, Stockens Green, Knebworth, SG3 6DG7A, Stockens Green, Knebworth, SG3 6DG
- Sold Feb 2026£880,000 | 5 Bed House14, Pondcroft Road, Knebworth, SG3 6DB14, Pondcroft Road, Knebworth, SG3 6DB
- Sold Aug 2025£825,000 | 4 Bed House91, London Road, Knebworth, SG3 6HG91, London Road, Knebworth, SG3 6HG
- Sold Sep 2024£768,500 | 5 Bed House55, Pondcroft Road, Knebworth, SG3 6DE55, Pondcroft Road, Knebworth, SG3 6DE
- Sold Mar 2024£800,000 | 4 Bed House19, St. Martins Road, Knebworth, SG3 6ER19, St. Martins Road, Knebworth, SG3 6ER
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £905,923, ranging from £668,757 to £1,236,765.
- 9 Swangleys Lane
5 Bed House | 20 m | Est. Value: £1,041,944
- 10A Swangleys Lane
4 Bed House | 43 m | Est. Value: £833,532
- 8 Swangleys Lane
5 Bed House | 45 m | Est. Value: £1,236,765
- 1A Old Lane
5 Bed House | 46 m | Est. Value: £885,009
- 5 Swangleys Lane
4 Bed House | 58 m | Est. Value: £826,814
Location Comparison
Swangleys Lane, Knebworth, SG3 has a total of 23 addresses. According to our analysis of all the public data, 11, Swangleys Lane, Knebworth is the 13th largest and the 13th most expensive property on the street.
When compared to the postcode district it is £423k more expensive than the average property in SG3.
More reading links
Schools Nearby
- Knebworth Primary and Nursery School200 m away
- All Saints Church of England Voluntary Aided Primary School, Datchworth1.4 km away
- St Michael's Woolmer Green CofE VA Primary School1.5 km away
- Barnwell School2.9 km away
- Marriotts School4.4 km away
- The Nobel School5.3 km away
More reading links
Public Transport Nearby
- Knebworth|600 m away
- Watton-at-Stone|4.3 km away
- Stevenage|4.5 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
