Our Data Sources
40, Carmarthen Street, Cardiff has 2 entries in the Land Registry , most recently in March 2020 and a single entry in the EPC database dated August 2010.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 40, Carmarthen Street, Cardiff would be worth £281,510, with a potential rental value of £1,398 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £249,337, with a rental value of £1,238 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
40, Carmarthen Street, Cardiff occupies a 88 m2 plot as recorded by HM Land Registry.
Of the 21 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 14th largest.
Energy Efficiency
40, Carmarthen Street, Cardiff has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 18 Aug 2010.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
40, Carmarthen Street, Cardiff last changed hands on 23rd March 2020, selling for £187,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has risen by 8.5% since March 2020.
- Sold Mar 2020£187,000
- Sold Nov 2014£159,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 131 sales of comparable properties within 360 metres of 40, Carmarthen Street, Cardiff across the last 2 years.
Most recently, 23, Market Road, Cardiff, CF5 1QE, a freehold house, sold at £270,000 on the 31st March 2026.
Read more about house prices in CF5.
- Sold Mar 2026£270,000 | 3 Bed House23, Market Road, Cardiff, CF5 1QE23, Market Road, Cardiff, CF5 1QE
- Sold Dec 2025£265,000 | 3 Bed House11, Carmarthen Street, Cardiff, CF5 1QG11, Carmarthen Street, Cardiff, CF5 1QG
- Sold Oct 2021£267,550 | 3 Bed House46, Glamorgan Street, Cardiff, CF5 1QT46, Glamorgan Street, Cardiff, CF5 1QT
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 40, Carmarthen Street, Cardiff as the 33rd largest and the 31st most expensive of the 48 addresses on Carmarthen Street, Cardiff, CF5.
Against the CF5 postcode district average, it is £26k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Ninian Park|900 m away
- Waun-Gron Park|1.8 km away
- Cathays|1.9 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
