Flat 3, 17 Wales Avenue, Carshalton, SM5 3QN
About Flat 3
Flat 3 is a one-bedroom end-of-terrace house in Carshalton (SM5 3QN). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1900-1929 and council tax band B. At 45 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 25–53 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (August 2021) shows a C (score 74). The rating has held steady at C across 2 certificates since October 2019. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Very Poor and window efficiency dropped from Good to Average.
At 45 m² it sits well below the postcode median (71 m² across 24 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£578/sq ft) was about 77.8% above the typical sold price in the postcode. Last sale on file: £280,000 in December 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms1
- Bathrooms1
Everything you need to know about Flat 3
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
Flat 3's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
More low energy lighting installed
Planning history
Flat 3 has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at Flat 3
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.
- Larger development activity nearby
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Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£273,000
Modelled from EPC, postcode comparables.
£280,000
Recorded with HM Land Registry.
Sales timeline
15 December 2022Most recent
£280,000
Median price across the last 5 sales in SM5 3QN: £450,000 (2025–2023).
Nearby sales in SM5 3QN
Versus other Wales Avenue homes
Flat 3 outperforms the street on price per m² by a wide margin.
Price per m²
£6,222
Street avg £4,261
Floor Area
45 m²
Street avg 43 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
1.5 t/year
Street avg 1.8 t/year
Everything you need to know about Flat 3
The true value, the hidden risks and the full sale history, in one report.
30-day 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
14/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cambridge Road / Carlshalton Road — bus stop.
Closest school
0.3 km
St Philomena's Catholic High School for Girls. 38 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
52.5dB
Night-time· 23:00 – 07:00
43.0dB