Our Data Sources
20B, Blackwell Drive, Watford has 41 entries in the Land Registry , most recently in June 2023 and a single entry in the EPC database dated October 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 20B, Blackwell Drive, Watford would be worth £305,541, with a potential rental value of £1,242 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £270,622, with a rental value of £1,100 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
20B, Blackwell Drive, Watford has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Oct 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
20B, Blackwell Drive, Watford last changed hands on 12th June 2023, selling for £315,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold 4 times since 1995.
The market for similar properties has risen by 26.9% since June 2023.
- Sold Jun 2023£315,000
- Sold Mar 2006£140,000
- Sold Feb 1996£35,500
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 71 sales of comparable properties within 600 metres of 20B, Blackwell Drive, Watford across the last 2 years.
Most recently, Flat 45, Springwell Apartments, Colnebank Drive, Watford, WD18 0LE, a leasehold flat, sold at £300,000 on the 17th December 2025.
Read more about house prices in WD19.
- Sold Dec 2025£300,000 | 2 Bed FlatFlat 45, Springwell Apartments, Colnebank Drive, Watford, WD18 0LEFlat 45, Springwell Apartments, Colnebank Drive, Watford, WD18 0LE
- Sold Sep 2025£290,000 | 2 Bed FlatFlat 139, Thurlows Court, Colnebank Drive, Watford, WD18 0LFFlat 139, Thurlows Court, Colnebank Drive, Watford, WD18 0LF
- Sold Jan 2024£257,500 | 2 Bed FlatFlat 1, Springwell Apartments, Colnebank Drive, Watford, WD18 0LEFlat 1, Springwell Apartments, Colnebank Drive, Watford, WD18 0LE
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 20B, Blackwell Drive, Watford as the 39th largest and the 39th most expensive of the 45 addresses on Blackwell Drive, Watford, WD19.
Against the WD19 postcode district average, it is £188k less expensive than the typical property.
More reading links
Schools Nearby
- Bromet Primary School600 m away
- Field Junior School700 m away
- Watford Field School (Infant & Nursery)700 m away
- Watford Grammar School for Girls1.0 km away
- Westfield Academy1.5 km away
- Watford Grammar School for Boys1.8 km away
More reading links
Public Transport Nearby
- Bushey|700 m away
- Watford High Street|1.0 km away
- Carpenders Park|1.8 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.












