20a, The Market, Wrythe Lane, Carshalton, SM5 1AG
About 20a
20a is a two-bedroom semi-detached house in Carshalton (SM5 1AG). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (October 2024) shows a C (score 76), near the top of the C band. When first surveyed in September 2009 the rating was E, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Poor to Average and lighting went from Poor to Very Good. At 58 m² this is the 22nd smallest of 50 units on EPC record in the building, where floor areas span 15–191 m². The building's EPC ratings span G to B across 50 units on file.
Across 2001–2017, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £243,000 is 38.9% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£280/sq ft) was about 15.4% above the typical sold price in the postcode. 9 years since the last transfer (May 2017).
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
Energy performance
20a's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Planning history
20a has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 2 things worth checking at 20a
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
30-day money-back guarantee
Sales history & valuation
Sale price has at least doubled since 2001.
£243,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 16 years.
£175,000
Growth on file: 5.6% per year over 16 years.
Sales timeline
31 May 2017Most recent
£175,000
+90.2%over 6 years5 July 2010
£92,000
+26.0%over 9 years9 April 2001
£73,000
Median price across the last 5 sales in SM5 1AG: £330,000 (2022–2019).
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
£330,00021a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Jun 2020
£450,00040a, The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold Jul 2019
£180,00029 The Market, Wrythe Lane, Carshalton, SM5 1AG
Sold May 2019
£500,000
Versus other The Market homes
EPC Rating for 20a runs comfortably ahead of the street norm.
Price per m²
£3,017
Street avg £4,265
Floor Area
58 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.5 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







