21 Blackwell Drive, Watford, WD19 4HP
About 21 Blackwell Drive
21 Blackwell Drive is a three-bedroom end-of-terrace house in Watford (WD19 4HP). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (February 2018) shows an E (score 49), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 80), a 2-band jump. Other recorded features include a conservatory.
At 86 m² it's 20.4% smaller than the typical home in the postcode (108 m² median across 9 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 89% of similar EPCs). Today's modelled estimate of £548,000 is 27.4% above the 2018 sale price. On a £-per-square-foot basis, the last sale (£465/sq ft) was about 64.4% above the typical sold price in the postcode. Last sale on file: £430,000 in November 2018.
What this property has
Inside
- Bedrooms3
- Bathrooms2
- CloakroomYes
- ConservatoryYes
Outside
- DrivewayYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Certificate validity
Valid until 8 February 2028
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Planning history
21 Blackwell Drive has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21 Blackwell Drive valuation sits well clear of the typical sold price in this postcode.
£548,000
Modelled from EPC, postcode comparables.
£430,000
Recorded with HM Land Registry.
Sales timeline
16 November 2018Most recent
£430,000
Median price across the last 5 sales in WD19 4HP: £420,000 (2019–2011).
Nearby sales in WD19 4HP
Versus other Blackwell Drive homes
Price per m² for 21 Blackwell Drive runs comfortably ahead of the street norm.
Price per m²
£5,000
Street avg £3,738
Floor Area
86 m²
Street avg 103 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.8 t/year
Street avg 4.7 t/year
Similar properties nearby
1 Blackwell Drive
WD19 4HP
1 Brookside Road
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1 Brookmill Close
WD19 4BB
1 Cedar Road
WD19 4QP
1 Brookdene Avenue
WD19 4LG
1 Caroline Place, Capel Road
WD19 4AF
1 Elm Avenue
WD19 4BD
1 Carlton Court, Eastbury Road
WD19 4QA
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
179/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Riverside Road — bus stop.
Closest school
0.5 km
Field Junior School. 34 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode

Daytime· 07:00 – 23:00
52.1dB

Night-time· 23:00 – 07:00
42.6dB







