Our Data Sources
18, Harcourt Terrace, Mountain Ash has no records in the Land Registry and a single entry in the EPC database dated March 2021.
We combine this information with public data 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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 18, Harcourt Terrace, Mountain Ash, we estimate a market value of £145,237 and a rental value of £862 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £128,639 and £763 per month respectively.
Energy Efficiency
18, Harcourt Terrace, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 01 Mar 2021.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Similar Properties Sold Nearby
Since 2018 99 properties similar to 18, Harcourt Terrace, Mountain Ash have sold within a radius of 610 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 14th November 2025, was 111, Woodfield Terrace, Mountain Ash, CF45 3UT, a freehold house which sold for £108,000.
Read more about house prices in CF45.
- Sold Nov 2025£108,000 | 3 Bed House111, Woodfield Terrace, Mountain Ash, CF45 3UT111, Woodfield Terrace, Mountain Ash, CF45 3UT
- Sold Nov 2025£120,000 | 3 Bed House100, Woodfield Terrace, Mountain Ash, CF45 3UT100, Woodfield Terrace, Mountain Ash, CF45 3UT
- Sold Nov 2025£65,000 | 3 Bed House110, Woodfield Terrace, Mountain Ash, CF45 3UT110, Woodfield Terrace, Mountain Ash, CF45 3UT
- Sold Sep 2025£47,000 | 3 Bed House101, Penrhiwceiber Road, Mountain Ash, CF45 3SF101, Penrhiwceiber Road, Mountain Ash, CF45 3SF
- Sold Jun 2025£132,500 | 3 Bed House61, Harcourt Terrace, Mountain Ash, CF45 3SD61, Harcourt Terrace, Mountain Ash, CF45 3SD
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 £115,742, ranging from £90,707 to £144,989.
- 19 Harcourt Terrace
3 Bed House | 5 m | Est. Value: £114,354
- 17 Harcourt Terrace
3 Bed House | 6 m | Est. Value: £116,698
- 16 Harcourt Terrace
3 Bed House | 9 m | Est. Value: £115,141
- 20 Harcourt Terrace
4 Bed House | 11 m | Est. Value: £144,989
- 15 Harcourt Terrace
3 Bed House | 14 m | Est. Value: £123,424
Location Comparison
Of the 67 addresses on Harcourt Terrace, Penrhiwceiber, Mountain Ash, CF45, 18, Harcourt Terrace, Mountain Ash comes out as the 8th largest and the 6th most expensive in our analysis of the public data.
It is also £22k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|600 m away
- Mountain Ash|1.1 km away
- Fernhill|2.5 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












