Our Data Sources
21, Carmarthen Road, Slough has no recent1 records in the Land Registry and a single entry in the EPC database dated January 2021.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 21, Carmarthen Road, Slough is in very good condition we estimate a sale value of £504,590 and a rental value of £2,800 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £446,922 and a rental value of £2,480 per month.
Plot Size
According to data from HM Land Registry, 21, Carmarthen Road, Slough sits on a plot of 222 m2.
We have plot size data on 19 out of 21 other houses in the postcode and 21, Carmarthen Road, Slough sits on the 12th largest plot.
Energy Efficiency
21, Carmarthen Road, Slough has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 19 Jan 2021.
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
According to HM Land Registry, 21, Carmarthen Road, Slough was last sold on 8th November 2005 for £248,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
- Sold Nov 2005£248,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 57 sales of properties similar to 21, Carmarthen Road, Slough within a radius of 450 metres since 2009.
The most recent example is 8, Bradley Road, Slough, SL1 3PP, a freehold house which sold for £435,000 on the 6th February 2026.
Read more about house prices in SL1.
- Sold Feb 2026£435,000 | 3 Bed House8, Bradley Road, Slough, SL1 3PP8, Bradley Road, Slough, SL1 3PP
- Sold Aug 2025£550,000 | 4 Bed House49, Stoke Poges Lane, Slough, SL1 3NY49, Stoke Poges Lane, Slough, SL1 3NY
- Sold Mar 2025£491,500 | 3 Bed House21, Stoke Poges Lane, Slough, SL1 3NX21, Stoke Poges Lane, Slough, SL1 3NX
- Sold Oct 2024£450,000 | 3 Bed House22, Leeds Road, Slough, SL1 3PU22, Leeds Road, Slough, SL1 3PU
- Sold Oct 2024£399,000 | 3 Bed House122, Elliman Avenue, Slough, SL2 5BE122, Elliman Avenue, Slough, SL2 5BE
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 £458,051, ranging from £383,803 to £518,684.
- 19 Carmarthen Road
3 Bed House | 6 m | Est. Value: £461,767
- 17 Carmarthen Road
3 Bed House | 13 m | Est. Value: £464,074
- 15 Carmarthen Road
4 Bed House | 21 m | Est. Value: £487,485
- 22 Carmarthen Road
3 Bed House | 27 m | Est. Value: £401,975
- 13 Carmarthen Road
4 Bed House | 29 m | Est. Value: £518,684
Location Comparison
Carmarthen Road, Slough, SL1 has a total of 41 addresses. According to our analysis of all the public data, 21, Carmarthen Road, Slough is the 16th largest and the 9th most expensive property on the street.
When compared to the postcode district it is £110k more expensive than the average property in SL1.
More reading links
Schools Nearby
- James Elliman Academy400 m away
- The Godolphin Junior Academy800 m away
- Phoenix Infant Academy1.0 km away
- Herschel Grammar School700 m away
- Lynch Hill Enterprise Academy1.0 km away
- Baylis Court School1.0 km away
More reading links
Public Transport Nearby
- Slough|900 m away
- Burnham|3.2 km away
- Burnham (Buckinghamshire)|3.2 km away
Available Internet Speeds
According to recent data from Ofcom, Superfast Broadband is available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
