Flat 1, 21 St Marys Close, Stockport, SK1 4BT
About Flat 1
Flat 1 is a semi-detached house in Stockport (SK1 4BT). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1991-1995 and council tax band A. At 51 m² this is the smallest unit on EPC record across the building (51–55 m²). On EPC score it ranks last in the building (70 versus a best of 80). The latest certificate (May 2016) shows a C (score 70). The rating has held steady at C across 3 certificates since May 2010. The latest certificate is from May 2016, so improvements made since then won't be reflected.
Held since September 2010 — that's 16 years off the open market, well above the local norm. Across the public record there are 4 sales, relatively high churn for a single property. Across 1999–2010, sale prices on this property compounded at 7% per year. Today's modelled estimate of £124,000 sits 416.7% above the 2010 sale of £24,000. On a £-per-square-foot basis, the last sale (£44/sq ft) was about 59% below the postcode norm.
Know exactly what you're buying at Flat 1
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 05 May 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
Planning history
Flat 1 has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Flat 1 has more than doubled in price since the earliest registered sale in 1999.
£124,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.0% per year over 12 years.
£24,000
Growth on file: 7.0% per year over 12 years.
Sales timeline
19 September 2010Most recent
£24,000
+41.2%over 8 years6 June 2002
£17,000
+19.3%over 1 year8 December 2000
£14,250
+29.5%over 1 year15 March 1999
£11,000
Median price across the last 5 sales in SK1 4BT: £115,000 (2025–2020).
Nearby sales in SK1 4BT
Flat 6, 20 St Marys Close, Stockport, SK1 4BT
Sold Jul 2025
£67,50011 St Marys Close, Stockport, SK1 4BT
Sold Mar 2024
£115,000Flat 6, 19 St Marys Close, Stockport, SK1 4BT
Sold Feb 2024
£120,000Flat 5, 19 St Marys Close, Stockport, SK1 4BT
Sold Jan 2024
£125,000Flat 2, 20 St Marys Close, Stockport, SK1 4BT
Sold Sept 2020
£115,000
Everything we know about Flat 1, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other St Marys Close homes
EPC Rating for Flat 1 lags the street by a wide margin.
Price per m²
£471
Street avg £1,424
Floor Area
51 m²
Street avg 50 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 1.6 t/year
Similar properties nearby
Abbey Court, Flat 3, 115 Hall Street
SK1 4HE
Flat 1, 18 St Marys Close
SK1 4BT
Abbey Court, Flat 4, 115 Hall Street
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Abbey Court, Flat 5, 115 Hall Street
SK1 4HE
Abbey Court, Flat 1, 115 Hall Street
SK1 4HE
Abbey Court, Flat 2, 115 Hall Street
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Abbey Court, Flat 6, 115 Hall Street
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Flat 1, 172 Turncroft Lane
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The neighbourhood at a glance
Crime
1/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
St Mary's Way — bus stop.
Closest school
0.3 km
Vernon Park Primary School. 40 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
57.1dB

Night-time· 23:00 – 07:00
46.5dB