Flat B, 33 St Johns Road, Watford, WD17 1QB
About Flat B
Flat B is a mid-terrace house in Watford (WD17 1QB). It has a recorded floor area of 41 m² (around 441 sq ft) and construction records dating it to 1900-1929. The latest certificate (November 2018) shows a C (score 71). The rating has held steady at C across 2 certificates since November 2008. Between certificates, lighting went from Very Poor to Very Good; while roof efficiency dropped from Average to Poor and window efficiency dropped from Good to Average.
At 41 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
Certificate validity
Valid until 28 November 2028
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
Flat B has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat B has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£217,000
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 B outperforms the street on co₂ emissions by a wide margin.
EPC Rating
71 (C)
Street avg 67 (D)
Floor Area
41 m²
Street avg 63 m²
CO₂ Emissions
1.7 t/year
Street avg 2.8 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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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
0.1 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
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
55.0dB

Night-time· 23:00 – 07:00
45.6dB







