41a, Cardiff Road, Watford, WD18 0DS
About 41a
41a is a one-bedroom semi-detached house in Watford (WD18 0DS). It has a recorded floor area of 42 m² (around 452 sq ft), construction records dating it to 1900-1929 and council tax band B. The latest certificate (July 2024) shows a C (score 72).
At 42 m² it sits well below the postcode median (73 m² across 27 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Across 1996–2024, sale prices on this property compounded at 6.5% per year. On a £-per-square-foot basis, the last sale (£509/sq ft) was about 110.5% above the typical sold price in the postcode. Last sale on file: £230,000 in November 2024.
Know exactly what you're buying at 41a
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
- Bedrooms1
- Bathrooms1
Outside
- Private gardenYes
- ParkingOff street
Energy performance
EPC Rating
Planning history
41a has no planning applications on record.
Notable planning nearby
7applications of note in the surrounding area
We flagged 1 thing worth checking at 41a
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
41a has more than quadrupled in price since its earliest registered sale in 1996.
£244,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 29 years.
£230,000
Growth on file: 6.5% per year over 29 years.
Sales timeline
26 November 2024Most recent
£230,000
+283.7%over 25 years27 May 1999
£59,950
+57.8%over 3 years9 May 1996
£38,000
Median price across the last 5 sales in WD18 0DS: £347,000 (2025–2023).
Everything we know about 41a, 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 Cardiff Road homes
Price per m² for 41a runs comfortably ahead of the street norm.
Price per m²
£5,476
Street avg £3,890
Floor Area
42 m²
Street avg 55 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.6 t/year
Street avg 2.5 t/year
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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
0.3 km
Lammas Road — bus stop.
Closest school
0.2 km
Field Junior 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
53.8dB

Night-time· 23:00 – 07:00
44.6dB