11d, King Street, Watford, WD18 0BW
About 11d
11d is a semi-detached house in Watford (WD18 0BW). It has a recorded floor area of 64 m² (around 689 sq ft) and construction records dating it to 1900-1929. The latest certificate (June 2022) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since September 2012. Between certificates, roof efficiency went from Good to Very Good and lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 81). At 64 m² this is the 5th smallest of 6 units on EPC record in the building, where floor areas span 42–64 m².
At 64 m² the property is well over the postcode median (45 m² across 5 EPCs), placing it in the larger end of the local stock.
Know exactly what you're buying at 11d
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
More low energy lighting installed
Planning history
11d has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 11d
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
30-day money-back guarantee
Sales history & valuation
11d has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£303,000
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 WD18 0BW: £203,000 (2024–2003).
Everything we know about 11d, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area

Versus other King Street homes
On floor area, 11d stands well clear of the street.
EPC Rating
75 (C)
Street avg 75 (C)
Floor Area
64 m²
Street avg 50 m²
CO₂ Emissions
1.9 t/year
Street avg 1.6 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
King Street — bus stop.
Closest school
0.2 km
Watford Grammar School for Girls. 35 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
57.3dB

Night-time· 23:00 – 07:00
48.6dB