21a, Castle Street, Stockport, SK3 9AT
About 21a
21a is a mid-terrace house in Stockport (SK3 9AT). It has a recorded floor area of 41 m² (around 441 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (May 2011) shows an F (score 25), near the bottom of the EPC scale. The recommended improvements would lift it to D (score 68), a 2-band jump. Main heating runs on electricity. The latest certificate is from May 2011, so improvements made since then won't be reflected. At 41 m² this is the 9th smallest of 17 units on EPC record in the building, where floor areas span 26–54 m². The building's EPC ratings span F to C, with this unit at the bottom. On EPC score it ranks last in the building (25 versus a best of 78).
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
21a sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 May 2021
EPC Rating
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
21a has no planning applications on record.
But the area is active
7 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
21a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£140,000
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 SK3 9AT: £130,000 (2025–2019).
Nearby sales in SK3 9AT
Versus other Castle Street homes
21a is notably below the street on epc rating.
EPC Rating
25 (F)
Street avg 64 (D)
Floor Area
41 m²
Street avg 44 m²
CO₂ Emissions
4.7 t/year
Street avg 1.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about 21a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Nearest stop
0.1 km
York Street — bus stop.
Closest school
0.1 km
Our Lady's Catholic Primary School. 40 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
55.7dB
Night-time· 23:00 – 07:00
45.1dB