Our Data Sources
5, Bellamy Close, Knebworth has 41 entries in the Land Registry, most recently in May 2022 and a single entry in the EPC database dated December 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 5, Bellamy Close, Knebworth, we estimate a market value of £621,454 and a rental value of £2,455 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £550,430 and £2,175 per month respectively.
Plot Size
HM Land Registry records the plot of land for 5, Bellamy Close, Knebworth as measuring 324 m2.
That makes it the 15th largest plot in the postcode, where all 19 other houses have recorded plot data.
Energy Efficiency
5, Bellamy Close, Knebworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 Dec 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 5, Bellamy Close, Knebworth completed on 13th May 2022 at £600,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 4 times.
Values of comparable properties have dropped by 22.2% over the period since May 2022.
- Sold May 2022£600,000
- Sold Jan 2015£487,000
- Sold Feb 2008£375,000
Similar Properties Sold Nearby
Since 2013 63 properties similar to 5, Bellamy Close, Knebworth have sold within a radius of 920 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 11th November 2025, was 18, New Close, Knebworth, SG3 6NU, a freehold house which sold for £500,000.
Read more about house prices in SG3.
- Sold Nov 2025£500,000 | 3 Bed House18, New Close, Knebworth, SG3 6NU18, New Close, Knebworth, SG3 6NU
- Sold Aug 2025£565,000 | 4 Bed House21A, Gun Lane, Knebworth, SG3 6BJ21A, Gun Lane, Knebworth, SG3 6BJ
- Sold Feb 2025£590,000 | 3 Bed House2, Station Road, Knebworth, SG3 6AP2, Station Road, Knebworth, SG3 6AP
- Sold Nov 2024£600,000 | 3 Bed House35, Stevenage Road, Knebworth, SG3 6NN35, Stevenage Road, Knebworth, SG3 6NN
- Sold Oct 2024£550,000 | 3 Bed House40, Hornbeam Spring, Knebworth, SG3 6BE40, Hornbeam Spring, Knebworth, SG3 6BE
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 £722,270, ranging from £613,722 to £1,090,939.
- 6 Bellamy Close
4 Bed House | 11 m | Est. Value: £728,209
- 4 Bellamy Close
4 Bed House | 12 m | Est. Value: £670,755
- 16 Bellamy Close
4 Bed House | 37 m | Est. Value: £674,229
- 17 Bellamy Close
4 Bed House | 38 m | Est. Value: £691,414
- 39 Park Lane
5 Bed House | 44 m | Est. Value: £1,090,939
Location Comparison
Of the 19 addresses on Bellamy Close, Knebworth, SG3, 5, Bellamy Close, Knebworth comes out as the 19th largest and the 19th most expensive in our analysis of the public data.
It is also £194k more expensive than the average property across the SG3 district.
More reading links
Schools Nearby
- Knebworth Primary and Nursery School700 m away
- St Michael's Woolmer Green CofE VA Primary School1.9 km away
- St Margaret Clitherow Roman Catholic Primary School2.0 km away
- Barnwell School2.9 km away
- Marriotts School4.3 km away
- The Nobel School5.3 km away
More reading links
Public Transport Nearby
- Knebworth|400 m away
- Stevenage|4.1 km away
- Welwyn North|4.7 km away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.





