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Get startedFlat 3 is a one-bedroom semi-detached house in Merton, London, London (SW19 3TH). It has a recorded floor area of 44 m² (around 474 sq ft), construction records dating it to 2003-2006 and council tax band C. At 44 m² this is the smallest unit on EPC record across the building (44–74 m²). The building's EPC ratings span C to B, with this unit at the bottom. Other recorded features include a balcony. The latest certificate (February 2023) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since August 2012. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average.
Held since February 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 44 m² it sits well below the postcode median (86 m² across 9 EPCs), making it one of the more compact homes locally. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Today's modelled estimate of £328,000 is 42.6% above the 2009 sale price.
Flat 3's carbon output is low for the local stock.
Flat 3 has an approved extension on the planning record.
EXTENSION TO FLAT 3 TO CONVERT A ONE-BED UNIT INTO A TWO BEDROOMED FLAT
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£328,000
Modelled from EPC, postcode comparables.
£230,000
Recorded with HM Land Registry.
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On years held, Flat 3 stands well clear of the street.
Price per m²
£5,227
Street avg £10,946
Floor Area
44 m²
Street avg 62 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Merton Park Tram Stop — bus stop.

Daytime· 07:00 – 23:00
53.4dB

Changes detected from historical EPC data
More low energy lighting installed
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ERECTION OF AN EXTENSION TO ENLARGE A 1 BED FLAT TO A 2 BED FLAT
27 February 2009Most recent
£230,000
Median price across the last 5 sales in SW19 3TH: £765,000 (2023–2015).
An AI-written breakdown of everything that matters
Detailed EPC data
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Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
1.3 t/year
Street avg 2.0 t/year
SW19 3TH
Closest school
0.3 km
St Mary's Catholic Primary School. 40 schools nearby.
Night-time· 23:00 – 07:00
44.0dB