Our Data Sources
30, Longmead, Knebworth has a single entry in the Land Registry from February 2020 and a single entry in the EPC database dated September 2019.
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 30, Longmead, Knebworth would be worth £408,881, with a potential rental value of £1,996 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £362,152, with a rental value of £1,768 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
30, Longmead, Knebworth occupies a 154 m2 plot as recorded by HM Land Registry.
Of the 34 other houses in this postcode, 30 have recorded plot sizes, and this one ranks as the 6th largest.
Energy Efficiency
30, Longmead, Knebworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 03 Sep 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
30, Longmead, Knebworth last changed hands on 19th February 2020, selling for £320,000. 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 risen by 27.9% since February 2020.
- Sold Feb 2020£320,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 82 sales of comparable properties within 1.2 kilometres of 30, Longmead, Knebworth across the last 2 years.
Most recently, 20, Longmead, Knebworth, SG3 6JH, a freehold house, sold at £400,000 on the 19th September 2025.
Read more about house prices in SG3.
- Sold Sep 2025£400,000 | 3 Bed House20, Longmead, Knebworth, SG3 6JH20, Longmead, Knebworth, SG3 6JH
- Sold Oct 2024£380,000 | 3 Bed House22, Longmead, Knebworth, SG3 6JH22, Longmead, Knebworth, SG3 6JH
- Sold Feb 2022£380,000 | 3 Bed House31, Longmead, Knebworth, SG3 6JH31, Longmead, Knebworth, SG3 6JH
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 30, Longmead, Knebworth as the 8th largest and the 8th most expensive of the 34 addresses on Longmead, Woolmer Green, Knebworth, SG3.
Against the SG3 postcode district average, it is £156k less expensive than the typical property.
More reading links
Schools Nearby
- St Michael's Woolmer Green CofE VA Primary School400 m away
- Knebworth Primary and Nursery School1.1 km away
- All Saints Church of England Voluntary Aided Primary School, Datchworth1.3 km away
- Barnwell School4.0 km away
- Monk's Walk School4.3 km away
- Marriotts School5.5 km away
More reading links
Public Transport Nearby
- Knebworth|1.4 km away
- Welwyn North|3.5 km away
- Watton-at-Stone|4.3 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












