Our Data Sources
21, Knebworth has no records in the the Land Registry and a single entry in the EPC database dated March 2020.
We combine this information with public data 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 21, Knebworth is in very good condition we estimate a sale value of £439,876 and a rental value of £1,840 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £389,604 and a rental value of £1,630 per month.
Energy Efficiency
21, Knebworth has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 09 Mar 2020.
The property is not connected to mains gas and has high performance glazing. It is heated using Room heaters, electric.
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 37 sales of properties similar to 21, 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 Aug 2024£448,500 | 3 Bed Flat47, Lowe House, Knebworth, SG3 6EU47, Lowe House, Knebworth, SG3 6EU
- Sold Apr 2024£380,000 | 3 Bed Flat19, Lowe House, Knebworth, SG3 6EU19, Lowe House, Knebworth, SG3 6EU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Location Comparison
Lowe House, Knebworth, SG3 has a total of 47 addresses. According to our analysis of all the public data, 21, Knebworth is the 12th largest and the 10th most expensive property on the street.
When compared to the postcode district it is £126k less expensive than the average property in SG3.
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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.
