Our Data Sources
21, New Close, Knebworth has a single entry in the Land Registry from March 2024 and a single entry in the EPC database dated October 2023.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 21, New Close, Knebworth would be worth £570,983, with a potential rental value of £2,127 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £505,728, with a rental value of £1,884 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
21, New Close, Knebworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Oct 2023.
The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
21, New Close, Knebworth last changed hands on 27th March 2024, selling for £495,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 0.8% since March 2024.
- Sold Mar 2024£495,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 124 sales of comparable properties within 1.0 kilometres of 21, New Close, Knebworth since 2010.
Most recently, 17, Sayer Way, Knebworth, SG3 6BN, a freehold house, sold at £500,000 on the 18th December 2025.
Read more about house prices in SG3.
- Sold Dec 2025£500,000 | 3 Bed House17, Sayer Way, Knebworth, SG3 6BN17, Sayer Way, Knebworth, SG3 6BN
- Sold Nov 2025£500,000 | 3 Bed House18, New Close, Knebworth, SG3 6NU18, New Close, Knebworth, SG3 6NU
- Sold Aug 2025£565,000 | 3 Bed House21A, Gun Lane, Knebworth, SG3 6BJ21A, Gun Lane, Knebworth, SG3 6BJ
- Sold Apr 2025£485,000 | 3 Bed House16, Stockens Dell, Knebworth, SG3 6BG16, Stockens Dell, Knebworth, SG3 6BG
- Sold Feb 2025£590,000 | 3 Bed House2, Station Road, Knebworth, SG3 6AP2, Station Road, Knebworth, SG3 6AP
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 £501,282, ranging from £289,886 to £886,591.
- 22 New Close
4 Bed House | 7 m | Est. Value: £643,653
- 20 New Close
3 Bed House | 13 m | Est. Value: £521,929
- 23 New Close
4 Bed House | 22 m | Est. Value: £886,591
- 18 New Close
3 Bed House | 34 m | Est. Value: £523,176
- 17 New Close
4 Bed House | 44 m | Est. Value: £609,161
Location Comparison
Our analysis of the public data ranks 21, New Close, Knebworth as the 38th largest and the 37th most expensive of the 54 addresses on New Close, Knebworth, SG3.
Against the SG3 postcode district average, it is £190 less expensive than the typical property.
More reading links
Schools Nearby
- Knebworth Primary and Nursery School600 m away
- Shephalbury Park Primary School1.7 km away
- St Margaret Clitherow Roman Catholic Primary School1.7 km away
- Barnwell School2.5 km away
- Marriotts School3.9 km away
- The Nobel School4.8 km away
More reading links
Public Transport Nearby
- Knebworth|300 m away
- Stevenage|3.9 km away
- Watton-at-Stone|4.8 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
