Our Data Sources
20, William Street, Carshalton has 71 entries in the Land Registry, most recently in May 2017 and a single entry in the EPC database dated August 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 20, William Street, Carshalton, we estimate a market value of £392,287 and a rental value of £2,054 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £347,454 and £1,819 per month respectively.
Plot Size
HM Land Registry records the plot of land for 20, William Street, Carshalton as measuring 80 m2.
That makes it the 37th largest plot in the postcode, where 36 of the 38 other houses have recorded plot data.
Energy Efficiency
20, William Street, Carshalton has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 12 Aug 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 20, William Street, Carshalton completed on 26th May 2017 at £335,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 7 times.
Values of comparable properties have risen by 29.0% over the period since May 2017.
- Sold May 2017£335,000
- Sold Aug 2012£210,000
- Sold Sep 2003£167,000
Similar Properties Sold Nearby
Since 2008 41 properties similar to 20, William Street, Carshalton have sold within a radius of 490 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 2nd July 2025, was 2, Highgrove Mews, Carshalton, SM5 2RF, a freehold house which sold for £325,000.
Read more about house prices in SM5.
- Sold Jul 2025£325,000 | 3 Bed House2, Highgrove Mews, Carshalton, SM5 2RF2, Highgrove Mews, Carshalton, SM5 2RF
- Sold Jun 2025£378,000 | 3 Bed House43, St. Andrews Road, Carshalton, SM5 2DY43, St. Andrews Road, Carshalton, SM5 2DY
- Sold Feb 2025£425,000 | 3 Bed House80, Arlington Drive, Carshalton, SM5 2EX80, Arlington Drive, Carshalton, SM5 2EX
- Sold Dec 2024£430,000 | 3 Bed House35, St. Andrews Road, Carshalton, SM5 2DY35, St. Andrews Road, Carshalton, SM5 2DY
- Sold Jul 2024£340,000 | 3 Bed House126, Arlington Drive, Carshalton, SM5 2EX126, Arlington Drive, Carshalton, SM5 2EX
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £289,949, ranging from £193,432 to £439,066.
- 18 William Street
3 Bed House | 5 m | Est. Value: £415,745
- 24 William Street
3 Bed House | 8 m | Est. Value: £373,606
- 16 William Street
3 Bed House | 9 m | Est. Value: £419,872
- 14 William Street
3 Bed House | 13 m | Est. Value: £439,066
- 27 William Street
3 Bed House | 22 m | Est. Value: £415,364
Location Comparison
Of the 49 addresses on William Street, Carshalton, SM5, 20, William Street, Carshalton comes out as the 41st largest and the 38th most expensive in our analysis of the public data.
It is also £97k less expensive than the average property across the SM5 district.
More reading links
Schools Nearby
- Rushy Meadow Primary Academy300 m away
- Harris Junior Academy Carshalton400 m away
- Victor Seymour Infants' School400 m away
- Carshalton High School for Girls300 m away
- Carshalton Boys Sports College700 m away
- St Philomena's Catholic High School for Girls900 m away
More reading links
Public Transport Nearby
- Carshalton|500 m away
- Hackbridge|1.3 km away
- Carshalton Beeches|1.6 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












