Our Data Sources
16, William Street, Mountain Ash has a single entry in the Land Registry from May 2019 and a single entry in the EPC database dated August 2019.
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 16, William Street, Mountain Ash would be worth £176,704, with a potential rental value of £941 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £156,509, with a rental value of £834 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
16, William Street, Mountain Ash occupies a 123 m2 plot as recorded by HM Land Registry.
Of the 33 other houses in this postcode, 27 have recorded plot sizes, and this one ranks as the 5th largest.
Energy Efficiency
16, William Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 08 Aug 2019.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
16, William Street, Mountain Ash last changed hands on 29th May 2019, selling for £105,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 54.8% since May 2019.
- Sold May 2019£105,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 196 sales of comparable properties within 1.3 kilometres of 16, William Street, Mountain Ash across the last 2 years.
Most recently, 14, New Street, Mountain Ash, CF45 4NR, a freehold house, sold at £120,000 on the 12th March 2026.
Read more about house prices in CF45.
- Sold Mar 2026£120,000 | 3 Bed House14, New Street, Mountain Ash, CF45 4NR14, New Street, Mountain Ash, CF45 4NR
- Sold Sep 2024£98,000 | 3 Bed House20, William Street, Mountain Ash, CF45 4RW20, William Street, Mountain Ash, CF45 4RW
- Sold Sep 2024£167,000 | 3 Bed House29, William Street, Mountain Ash, CF45 4RW29, William Street, Mountain Ash, CF45 4RW
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks 16, William Street, Mountain Ash as the 5th largest and the 5th most expensive of the 33 addresses on William Street, Abercynon, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £8k more expensive than the typical property.
More reading links
Schools Nearby
Public Transport Nearby
- Abercynon|200 m away
- Quakers Yard|1.9 km away
- Penrhiwceiber|3.6 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.
