23a, Flat 2, Upton Park, Slough, SL1 2DA
About 23a
23a is a mid-terrace house in Slough (SL1 2DA). It has a recorded floor area of 22 m² (around 237 sq ft), construction records dating it to 1930-1949 and council tax band C. At 22 m² this is the smallest unit on EPC record across 23a (22–109 m²). The building's EPC ratings span E to C, with this unit at the top. The latest certificate (June 2025) shows a C (score 70). The rating has held steady at C across 2 certificates since June 2015. Between certificates, wall efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. Main heating runs on electricity.
At 22 m² it sits well below the postcode median (43 m² across 95 EPCs), making it one of the more compact homes locally.
Everything you need to know about 23a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
23a's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 13 June 2035
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
23a has no planning applications on record.
But the area is active
18 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
23a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£143,000
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 SL1 2DA: £186,000 (2026–2024).
Nearby sales in SL1 2DA
Stoke House, Flat 3, 23 Upton Park, Slough, SL1 2DA
Sold Mar 2026
£186,000Flat 5, 43 Upton Park, Slough, SL1 2DA
Sold Jan 2026
£141,300Windsor House, Flat 3, 33 Upton Park, Slough, SL1 2DA
Sold Feb 2025
£199,950Windsor House, Flat 8, 33 Upton Park, Slough, SL1 2DA
Sold Feb 2025
£167,500Flat 6, 37 Upton Park, Slough, SL1 2DA
Sold Nov 2024
£199,950
Versus other Upton Park homes
Floor Area for 23a lags the street by a wide margin.
EPC Rating
70 (C)
Street avg 67 (D)
Floor Area
22 m²
Street avg 44 m²
CO₂ Emissions
1.2 t/year
Street avg 2.2 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 23a
The true value, the hidden risks and the full sale history, in one report.
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One time fee only - money back guarantee
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
656/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Albert Street — bus stop.
Closest school
0.5 km
Slough and Eton Church of England Business and Enterprise College. 33 schools nearby.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
58.4dB
Night-time· 23:00 – 07:00
50.9dB