Union House, Flat 15, 23 Clayton Road, Hayes, UB3 1AA
About Union House
Union House is a three-bedroom property in Hayes (UB3 1AA). It has a recorded floor area of 48 m² (around 517 sq ft), construction records dating it to 2012-2021 and council tax band D. At 48 m² this is the 30th smallest of 50 units on EPC record in Union House, where floor areas span 20–76 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (January 2026) shows a C (score 72). When first surveyed in January 2016 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency dropped from Very Good to Average and lighting dropped from Very Good to Good. The recommended improvements would push it to B (score 85). Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition.
Today's modelled estimate of £321,000 is 12.7% below the 2016 sale of £367,500, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£711/sq ft) was about 33.8% above the typical sold price in the postcode. 10 years since the last transfer (March 2016).
Know exactly what you're buying at Union House
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
- Bedrooms3
- Bathrooms2
Outside
- ParkingAllocated
Building
- LiftYes
Energy performance
Union House's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation upgraded
Planning history
Union House has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 2 things worth checking at Union House
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
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
£321,000
Modelled from EPC, postcode comparables.
£367,500
Recorded with HM Land Registry.
Sales timeline
7 March 2016Most recent
£367,500
Median price across the last 5 sales in UB3 1AA: £270,000 (2024–2021).
Nearby sales in UB3 1AA
Union House, Flat 48, 23 Clayton Road, Hayes, UB3 1AA
Sold Mar 2024
£265,000Union House, Flat 14, 23 Clayton Road, Hayes, UB3 1AA
Sold Oct 2023
£270,000Union House, Flat 22, 23 Clayton Road, Hayes, UB3 1AA
Sold Sept 2023
£318,000Union House, Flat 33, 23 Clayton Road, Hayes, UB3 1AA
Sold Feb 2023
£360,000Union House, Flat 8, 23 Clayton Road, Hayes, UB3 1AA
Sold Sept 2021
£250,000
Everything we know about Union House, 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
- Larger development activity nearby

Versus other Clayton Road homes
Habitable Rooms for Union House runs comfortably ahead of the street norm.
Price per m²
£7,656
Street avg £5,820
Floor Area
48 m²
Street avg 50 m²
Habitable Rooms
4 rooms
Street avg 2 rooms
CO₂ Emissions
0.5 t/year
Street avg 1.7 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
0.1 km
Clayton Road (UB3) — bus stop.
Closest school
0.3 km
Botwell House Catholic Primary School. 34 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
53.6dB

Night-time· 23:00 – 07:00
43.6dB