Our Data Sources
18, John Street, Aberdare has 2 entries in the Land Registry , most recently in July 2025 and a single entry in the EPC database dated December 2023.
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.
Price Range & Condition
In very good condition, we estimate 18, John Street, Aberdare would be worth £134,732, with a potential rental value of £860 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £119,334, with a rental value of £761 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
18, John Street, Aberdare occupies a 142 m2 plot as recorded by HM Land Registry.
Of the 20 other houses in this postcode, 18 have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
18, John Street, Aberdare has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 12 Dec 2023.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
18, John Street, Aberdare last changed hands on 30th July 2025, selling for £135,000. 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 dropped by 20.7% since July 2025.
- Sold Jul 2025£135,000
- Sold Dec 2023£61,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 51 sales of comparable properties within 870 metres of 18, John Street, Aberdare across the last 2 years.
Most recently, 51, Station Road, Aberdare, CF44 9TA, a freehold house, sold at £132,000 on the 2nd October 2024.
Read more about house prices in CF44.
- Sold Oct 2024£132,000 | 3 Bed House51, Station Road, Aberdare, CF44 9TA51, Station Road, Aberdare, CF44 9TA
- Sold Oct 2018£90,000 | 3 Bed House13, John Street, Aberdare, CF44 9TB13, John Street, Aberdare, CF44 9TB
- Sold Feb 2015£60,000 | 3 Bed House15, John Street, Aberdare, CF44 9TB15, John Street, Aberdare, CF44 9TB
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 18, John Street, Aberdare as the 18th largest and the 17th most expensive of the 20 addresses on John Street, Hirwaun, Aberdare, CF44.
Against the CF44 postcode district average, it is £23k less expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Aberdare|5.2 km away
- Cwmbach|7.7 km away
- Treherbert|7.9 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.












