21a, Botwell Lane, Hayes, UB3 2AB
About 21a
21a is a semi-detached house in Hayes (UB3 2AB). It has a recorded floor area of 57 m² (around 614 sq ft), construction records dating it to 1930-1949 and council tax band C. At 57 m² this is the 6th smallest of 10 units on EPC record in the building, where floor areas span 29–86 m². The building's EPC ratings span E to B across 10 units on file. The latest certificate (November 2016) shows a D (score 55), a step below the typical UK home. The recommended improvements would push it to C (score 70).
At 57 m² the property is well over the postcode median (38 m² across 9 EPCs), placing it in the larger end of the local stock. Across 2002–2020, sale prices on this property compounded at -11.8% per year. Today's modelled estimate of £297,000 sits 1880% above the 2020 sale of £15,000. On a £-per-square-foot basis, the last sale (£24/sq ft) was about 92.2% below the postcode norm. Last sale on file: £15,000 in November 2020.
Know exactly what you're buying at 21a
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
Planning history
21a has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 1 thing worth checking at 21a
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
21a's sale-price growth has lagged the wider UK trajectory across its history on file.
£297,000
Modelled from EPC, postcode comparables and a sale-price growth of -11.8% per year over 18 years.
£15,000
Growth on file: -11.8% per year over 18 years.
Sales timeline
17 November 2020Most recent
£15,000
-90.0%over 18 years18 July 2002
£150,000
Median price across the last 4 sales in UB3 2AB: £164,000 (2017–1998).
Everything we know about 21a, 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 Botwell Lane homes
On price per m², 21a runs well behind the street norm.
Price per m²
£263
Street avg £4,924
Floor Area
57 m²
Street avg 51 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
3.7 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
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Botwell Green — bus stop.
Closest school
0.1 km
Botwell House Catholic Primary School. 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
52.9dB

Night-time· 23:00 – 07:00
42.1dB