Our Data Sources
85, Clarence Street, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated July 2014.
We combine this information with public data 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 85, Clarence Street, Mountain Ash would be worth £127,618, with a potential rental value of £824 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £113,033, with a rental value of £729 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
85, Clarence Street, Mountain Ash occupies a 130 m2 plot as recorded by HM Land Registry.
Of the 66 other houses in this postcode, 60 have recorded plot sizes, and this one ranks as the 54th largest.
Energy Efficiency
85, Clarence Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 24 Jul 2014.
The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 216 sales of comparable properties within 610 metres of 85, Clarence Street, Mountain Ash since 2021.
Most recently, 70, Clarence Street, Mountain Ash, CF45 3BD, a freehold house, sold at £135,000 on the 20th March 2026.
Read more about house prices in CF45.
- Sold Mar 2026£135,000 | 3 Bed House70, Clarence Street, Mountain Ash, CF45 3BD70, Clarence Street, Mountain Ash, CF45 3BD
- Sold Oct 2025£112,000 | 3 Bed House32, Oakland Street, Mountain Ash, CF45 3AL32, Oakland Street, Mountain Ash, CF45 3AL
- Sold Sep 2025£130,000 | 3 Bed House14, Oakland Street, Mountain Ash, CF45 3AL14, Oakland Street, Mountain Ash, CF45 3AL
- Sold Sep 2025£125,000 | 3 Bed House26, Albany Street, Mountain Ash, CF45 3BE26, Albany Street, Mountain Ash, CF45 3BE
- Sold Jun 2025£90,000 | 3 Bed House26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN26, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £110,385, ranging from £101,081 to £120,273.
- 86 Clarence Street
3 Bed House | 3 m | Est. Value: £108,070
- 84 Clarence Street
3 Bed House | 6 m | Est. Value: £110,917
- 87 Clarence Street
3 Bed House | 9 m | Est. Value: £112,309
- 83 Clarence Street
3 Bed House | 11 m | Est. Value: £114,361
- 88 Clarence Street
3 Bed House | 14 m | Est. Value: £104,383
Location Comparison
Our analysis of the public data ranks 85, Clarence Street, Mountain Ash as the 14th largest and the 22nd most expensive of the 102 addresses on Clarence Street, Mountain Ash, CF45.
Against the CF45 postcode district average, it is £39k less expensive than the typical property.
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Schools Nearby
Public Transport Nearby
- Mountain Ash|700 m away
- Penrhiwceiber|1.2 km away
- Fernhill|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 available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












