Our Data Sources
40, Knebworth has 2 entries in the Land Registry , most recently in December 2024 and a single entry in the EPC database dated March 2020.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
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 40, Knebworth is in very good condition we estimate a sale value of £429,447 and a rental value of £1,796 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £380,367 and a rental value of £1,591 per month.
Energy Efficiency
40, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 17 Mar 2020.
The property is not connected to mains gas and has high performance glazing. It is heated using Room heaters, electric.
Sold Prices
According to HM Land Registry, 40, Knebworth was last sold on 19th December 2024 for £380,000 and was recorded as a leasehold flat.
The property has had 2 sales since 1995.
Since December 2024, the market for similar properties has dropped by 1.2%.
- Sold Dec 2024£380,000
- Sold Oct 2021£485,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 40 sales of properties similar to 40, Knebworth within a radius of 890 metres over the last 2 years.
The most recent example is 9, Lowe House, Knebworth, SG3 6EU, a leasehold flat which sold for £333,000 on the 17th December 2025.
Read more about house prices in SG3.
- Sold Dec 2025£333,000 | 3 Bed Flat9, Lowe House, Knebworth, SG3 6EU9, Lowe House, Knebworth, SG3 6EU
- Sold Jun 2024£460,500 | 3 Bed Flat38, Lowe House, Knebworth, SG3 6EU38, Lowe House, Knebworth, SG3 6EU
- Sold Apr 2024£420,000 | 3 Bed Flat3, Lowe House, Knebworth, SG3 6EU3, Lowe House, Knebworth, SG3 6EU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Lowe House, Knebworth, SG3 has a total of 47 addresses. According to our analysis of all the public data, 40, Knebworth is the 17th largest and the 15th most expensive property on the street.
When compared to the postcode district it is £136k less 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, Datchworth1.7 km away
- St Michael's Woolmer Green CofE VA Primary School1.7 km away
- Barnwell School2.8 km away
- Marriotts School4.2 km away
- The Nobel School5.2 km away
More reading links
Public Transport Nearby
- Knebworth|200 m away
- Stevenage|4.3 km away
- Watton-at-Stone|4.5 km away
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
