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Get started12 Cromer Road is a mid-terrace house in Merton, London, London (SW17 9JN). It has a recorded floor area of 117 m² (around 1259 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (February 2021) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in March 2016 the rating was E, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Average, hot-water efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Sale prices here have outpaced London HPI: 7.4% per year against 0% for the wider region. Today's modelled estimate of £877,000 is 12.4% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£619/sq ft) was about 108% above the typical sold price in the postcode. At 117 m² the property is well over the postcode median (89 m² across 25 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 1 approved, 1 refused. Past consents include an extension, meaningful when judging how the property has evolved. Most recent transfer: April 2021 at £780,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
12 Cromer Road has 2 separate extension applications on the council record.
Extension: Single storey · Rear of property
ERECTION OF A SINGLE STOREY REAR EXTENSION
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£877,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.4% per year over 5 years.
£780,000
Growth on file: 7.4% per year over 5 years.
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Detailed AI analysis
On habitable rooms, 12 Cromer Road runs well behind the street norm.
Price per m²
£6,667
Street avg £4,339
Floor Area
117 m²
Street avg 95 m²
Habitable Rooms
4 rooms
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Tooting Station — bus stop.

Daytime· 07:00 – 23:00
53.7dB

Changes detected from historical EPC data
Hot water efficiency improved
Windows upgraded, improving insulation
More low energy lighting installed
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Extension: Rear of property
APPLICATION FOR A LAWFUL DEVELOPMENT CERTIFICATE FOR THE PROPOSED ERECTION OF A REAR ROOF EXTENSION
1 more application for this property
Join to see all planning history.
1 April 2021Most recent
£780,000
+39.3%over 4 years12 August 2016
£560,000
Median price across the last 5 sales in SW17 9JN: £625,000 (2025–2022).
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Every application and decision on record
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Street avg 5 rooms
CO₂ Emissions
4.9 t/year
Street avg 3.6 t/year
SW17 9EG
Closest school
0.2 km
Links Primary School. 57 schools nearby.
Night-time· 23:00 – 07:00
43.1dB