Our Data Sources
Longdene, Knebworth has a single entry in the Land Registry from August 2019 and a single entry in the EPC database dated April 2026.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 0 out of 5 and is considered of low accuracy.
Plot Size
According to data from HM Land Registry, Longdene, Knebworth sits on a plot of 8,931 m2.
Energy Efficiency
Longdene, Knebworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 13 Apr 2026.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (electric).
Sold Prices
According to HM Land Registry, Longdene, Knebworth was last sold on 16th August 2019 for £2,000,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since August 2019, the market for similar properties has dropped by 31.7%.
- Sold Aug 2019£2,000,000
Explore Nearby Properties
The surrounding properties have an average estimated value of £915,896, ranging from £728,613 to £1,212,130.
- 51 Watton Road
5 Bed House | 225 m | Est. Value: £966,447
- Old Lane House
5 Bed House | 238 m | Est. Value: £916,991
- 27 St. Martins Road
4 Bed House | 274 m | Est. Value: £830,234
- 25 St. Martins Road
5 Bed House | 284 m | Est. Value: £1,160,566
- 18 St. Martins Road
4 Bed House | 305 m | Est. Value: £802,754
Schools Nearby
- Knebworth Primary and Nursery School500 m away
- All Saints Church of England Voluntary Aided Primary School, Datchworth1.3 km away
- St Michael's Woolmer Green CofE VA Primary School1.8 km away
- Barnwell School2.6 km away
- Marriotts School4.1 km away
- The Nobel School5.0 km away
More reading links
Public Transport Nearby
- Knebworth|800 m away
- Watton-at-Stone|4.0 km away
- Stevenage|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.





