Cornwall House 55 57, Flat 17, High Street, Slough, SL1 1DZ
About Cornwall House 55 57
Cornwall House 55 57 is a mid-terrace house in Slough (SL1 1DZ). It has a recorded floor area of 50 m² (around 538 sq ft) and construction records dating it to 2012 onwards. The latest certificate (May 2026) shows a D (score 62), on the cusp of jumping into the C band. When first surveyed in May 2016 the rating was E, the property has climbed 1 band since. Between certificates, wall efficiency dropped from Very Good to Good and lighting dropped from Very Good to Good. The recommended improvements would push it to C (score 78). Main heating runs on electricity. This certificate was lodged in the last six months, so the rating reflects current condition. At 50 m² this is the 11th smallest of 55 units on EPC record in Cornwall House 55 57, where floor areas span 34–133 m². The building's EPC ratings span F to B across 55 units on file.
10 years since the last transfer (September 2016).
Everything you need to know about Cornwall House 55 57
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Cornwall House 55 57's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 14 May 2036
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
Floor insulation added or improved
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 £1,020 · Includes VAT
Planning history
Cornwall House 55 57 has no planning applications on record.
But the area is active
12 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£404,000
Modelled from EPC, postcode comparables.
£440,000
Recorded with HM Land Registry.
Sales timeline
29 September 2016Most recent
£440,000
Median price across the last 2 sales in SL1 1DZ: £903,000 (2017–2016).
Versus other High Street homes
On habitable rooms, Cornwall House 55 57 runs well behind the street norm.
EPC Rating
62 (D)
Street avg 56 (D)
Floor Area
50 m²
Street avg 61 m²
CO₂ Emissions
0.6 t/year
Street avg 2.3 t/year
Habitable Rooms
1 rooms
Street avg 3 rooms
Everything you need to know about Cornwall House 55 57
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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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
0.0 km
Wellington Street Stop F — bus stop.
Closest school
0.8 km
Slough and Eton Church of England Business and Enterprise College. 32 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
53.7dB
Night-time· 23:00 – 07:00
44.4dB