Flat C, 33 St Johns Road, Watford, WD17 1QB
About Flat C
Flat C is a semi-detached house in Watford (WD17 1QB). It has a recorded floor area of 82 m² (around 883 sq ft) and construction records dating it to 1900-1929. The latest certificate (November 2018) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2008. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 77).
At 82 m² it sits well below the postcode median (125 m² across 20 EPCs), making it one of the more compact homes locally.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Planning history
Flat C has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 2 things worth checking at Flat C
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.
- Signs of HMO activity in the area
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Flat C has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£304,000
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 1QB: £398,000 (2023–2021).
Nearby sales in WD17 1QB
Versus other St Johns Road homes
Flat C outperforms the street on floor area by a wide margin.
EPC Rating
65 (D)
Street avg 67 (D)
Floor Area
82 m²
Street avg 58 m²
CO₂ Emissions
3.6 t/year
Street avg 2.6 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
10/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Beechen Grove North — bus stop.
Closest school
0.4 km
Watford St John's Church of England Primary School. 36 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
55.0dB

Night-time· 23:00 – 07:00
45.6dB








