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Get started21a is a semi-detached house in Wallington (SM6 0AU). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (March 2025) shows a C (score 78), near the top of the C band. The rating has held steady at C across 2 certificates since December 2017. Between certificates, wall efficiency went from Poor to Good, window efficiency went from Very Poor to Average and lighting went from Good to Very Good. At 56 m² this is the 8th smallest of 18 units on EPC record in the building, where floor areas span 27–157 m². The building's EPC ratings span E to B across 18 units on file.
Held since January 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. Today's modelled estimate of £324,000 is 29.6% above the 2009 sale price. On a £-per-square-foot basis, the last sale (£415/sq ft) was about 39.8% above the typical sold price in the postcode. One historical planning record sits against the property in 2018.
21a's carbon output is low for the local stock.
etrospective application for balcony with proposed 1.8 metres high obscured glazed screening on the side boundary with No. 23.
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£324,000
Modelled from EPC, postcode comparables.
£250,000
Recorded with HM Land Registry.
Years Held for 21a runs comfortably ahead of the street norm.
Price per m²
£4,464
Street avg £4,646
Floor Area
56 m²
Street avg 56 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Parkgate Road — bus stop.

Daytime· 07:00 – 23:00
53.4dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Single glazing replaced with double or better glazing
Wall insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
28 January 2009Most recent
£250,000
Median price across the last 5 sales in SM6 0AU: £315,000 (2025–2022).
Magnolia Court Flat 2 17 Parkgate Road Wallington
Sold Jan 2025
Magnolia Court Flat 3 17 Parkgate Road Wallington
Sold Jun 2024
29 Parkgate Road Wallington
Sold Nov 2022
Magnolia Court Flat 9 17 Parkgate Road Wallington
Sold Aug 2022
37 Parkgate Road Wallington
Sold Jul 2022
CO₂ Emissions
1.4 t/year
Street avg 1.7 t/year
SM6 0AQ
Closest school
0.3 km
All Saints Carshalton Church of England Primary School. 38 schools nearby.
Night-time· 23:00 – 07:00
44.3dB
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