11a, King Street, Watford, WD18 0BW
About 11a
11a is a two-bedroom end-of-terrace house in Watford (WD18 0BW). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (June 2022) shows a C (score 72). When first surveyed in December 2008 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. At 45 m² this is the 2nd smallest of 6 units on EPC record in the building, where floor areas span 42–64 m². On EPC score it ranks last in the building (72 versus a best of 78).
4 planning records sit against the property, 0 approved, 0 refused.
Know exactly what you're buying at 11a
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
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Open-plan layoutYes
Outside
- ParkingOff street
Building
- Heating systemGas
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency decreased
Windows upgraded, improving insulation
Heating controls upgraded for better temperature management
More low energy lighting installed
Planning history
- Mar 2012ConditionsIn report
Details submitted for Condition 5 (paint) pursuant to planning permission 08/01447/FUL.
- Documents
- 7 docs on file
- Reference
- 12/00120/DISCON
- Mar 2012ConditionsIn report
Details submitted for Condition 4 (window design) pursuant to planning permission 08/01447/FUL.
- Documents
- 6 docs on file
- Reference
- 12/00119/DISCON
We flagged 1 thing worth checking at 11a
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
11a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£239,000
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 11a, 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
EPC Rating for 11a lags the street by a wide margin.
EPC Rating
72 (C)
Street avg 75 (C)
Floor Area
45 m²
Street avg 53 m²
CO₂ Emissions
1.7 t/year
Street avg 1.6 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
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1 Holywell Road
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1 Durban Road East
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1 Cardiff Road
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1 Chester Road
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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