17a, Blackwell Drive, Watford, WD19 4HP
About 17a
17a is a detached house in Watford (WD19 4HP). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (February 2025) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 86), a 2-band jump.
At 65 m² it sits well below the postcode median (108 m² across 9 EPCs), making it one of the more compact homes locally. One historical planning record sits against the property in 2011.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Planning history
- Apr 2011ExtensionFullIn report
Extension: Single storey · Rear of property
Erection of a single storey rear extension
- Documents
- 19 docs on file
- Reference
- 11/00183/FULH
We flagged 1 thing worth checking at 17a
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
17a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£374,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in WD19 4HP: £430,000 (2025–2016).
Nearby sales in WD19 4HP
Versus other Blackwell Drive homes
17a outperforms the street on epc rating by a wide margin.
EPC Rating
68 (D)
Street avg 58 (D)
Floor Area
65 m²
Street avg 105 m²
CO₂ Emissions
2.6 t/year
Street avg 5.3 t/year
Habitable Rooms
3 rooms
Street avg 5 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady 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
The full 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








