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Get started18 Coniston Court is a three-bedroom detached house in Wallington (SM6 8AT). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1976-1982 and council tax band D. At 87 m² this is the 32nd smallest of 48 units on EPC record in the building, where floor areas span 42–116 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (September 2021) shows a C (score 72). When first surveyed in November 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, roof efficiency went from Very Poor to Poor and window efficiency went from Very Poor to Good.
Held since October 2004 — that's 22 years off the open market, well above the local norm. Sale prices here have outpaced England HPI: 16.2% per year against 0% for the wider region. Today's modelled estimate of £310,000 sits 89% above the 2004 sale of £164,000. One planning record on file: subdivision approved in 2005. Past consents include subdivision, meaningful when judging how the property has evolved. At 87 m² it's 16% larger than the typical home in the postcode (75 m² median across 47 EPCs).
Council records show a subdivision application — the property's legal arrangement has been altered.
Conversion of existing 3-bedroomed maisonette into two 1-bedroomed self contained flats incorporating balcony enclosure.
18 Coniston Court has more than tripled in price since its earliest registered sale in 1997.
£310,000
Modelled from EPC, postcode comparables and a sale-price growth of 16.2% per year over 7 years.
£164,000
Growth on file: 16.2% per year over 7 years.
On habitable rooms, 18 Coniston Court stands well clear of the street.
Price per m²
£1,885
Street avg £2,290
Floor Area
87 m²
Street avg 73 m²
Habitable Rooms
5 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
0.1 km
Wallington Green / Croydon Road — bus stop.

Daytime· 07:00 – 23:00
53.1dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Wall insulation upgraded
Roof insulation improved
Low energy lighting percentage decreased
Ventilation system changed
Hot water efficiency decreased
Single glazing replaced with double or better glazing
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
15 October 2004Most recent
£164,000
+203.7%over 7 years30 May 1997
£54,000
Median price across the last 5 sales in SM6 8AT: £240,000 (2025–2021).
28 Coniston Court Harcourt Road Wallington
Sold May 2025
55 Coniston Court Harcourt Road Wallington
Sold Feb 2024
47 Coniston Court Harcourt Road Wallington
Sold Mar 2021
10 Coniston Court Harcourt Road Wallington
Sold Apr 2019
41 Coniston Court Harcourt Road Wallington
Sold Nov 2018
CO₂ Emissions
2.7 t/year
Street avg 2.7 t/year
SM6 8DR
Closest school
0.3 km
Wallington County Grammar School. 40 schools nearby.
Night-time· 23:00 – 07:00
44.1dB
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