11 Cassiobury Drive, Watford, WD17 3AA
About 11 Cassiobury Drive
11 Cassiobury Drive is a detached house in Watford (WD17 3AA). It has a recorded floor area of 111 m² (around 1195 sq ft), construction records dating it to 1930-1949 and council tax band G. The latest certificate (January 2024) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 79), a 2-band jump.
At 111 m² it sits well below the postcode median (163 m² across 16 EPCs), making it one of the more compact homes locally.
Energy performance
11 Cassiobury Drive's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 31 January 2034
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £1,645 · Includes VAT
Planning history
11 Cassiobury Drive has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
11 Cassiobury Drive has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,016,000
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 WD17 3AA: £975,000 (2025–2019).
Nearby sales in WD17 3AA
13 Cassiobury Drive, Watford, WD17 3AA
Sold Sept 2025
£975,00029 Cassiobury Drive, Watford, WD17 3AA
Sold Apr 2024
£1,021,00021 Cassiobury Drive, Watford, WD17 3AA
Sold Nov 2022
£850,00019 Cassiobury Drive, Watford, WD17 3AA
Sold Dec 2020
£1,410,00039 Cassiobury Drive, Watford, WD17 3AA
Sold Sept 2019
£974,500
Versus other Cassiobury Drive homes
Floor Area for 11 Cassiobury Drive lags the street by a wide margin.
EPC Rating
52 (E)
Street avg 58 (D)
Floor Area
111 m²
Street avg 174 m²
CO₂ Emissions
6.3 t/year
Street avg 7.6 t/year
Habitable Rooms
6 rooms
Street avg 8 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
266/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Cassiobury Park Avenue — bus stop.
Closest school
0.2 km
West Herts College. 35 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
52.4dB

Night-time· 23:00 – 07:00
43.3dB







