21a, The Market, Wrythe Lane, Carshalton, SM5 1AG
About 21a
21a is a mid-terrace house in Carshalton (SM5 1AG). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (October 2024) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since December 2019. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to C (score 73).
Across 1995–2020, sale prices on this property compounded at 7.8% per year. On a £-per-square-foot basis, the last sale (£709/sq ft) was about 191.8% above the typical sold price in the postcode. Last sale on file: £450,000 in June 2020.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
Planning history
21a has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 2 things worth checking at 21a
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
21a has more than quadrupled in price since its earliest registered sale in 1995.
£407,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.8% per year over 25 years.
£450,000
Growth on file: 7.8% per year over 25 years.
Sales timeline
21 June 2020Most recent
£450,000
+718.2%over 23 years2 April 1997
£55,000
-21.4%over 1 year7 August 1995
£70,000
Median price across the last 5 sales in SM5 1AG: £249,500 (2022–2017).
Nearby sales in SM5 1AG
24a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Mar 2022
£215,00018a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Nov 2021
£330,00040a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Jul 2019
£180,00029 The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold May 2019
£500,00015a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Dec 2017
£249,500
Versus other The Market homes
Price per m² for 21a runs comfortably ahead of the street norm.
Price per m²
£7,627
Street avg £3,994
Floor Area
59 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.0 t/year
Street avg 3.2 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
14/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Wrythe Lane / Rose Hill Roundabout — bus stop.
Closest school
0.5 km
Malmesbury Primary School. 43 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
54.4dB

Night-time· 23:00 – 07:00
46.6dB







