111 Pentwyn Avenue, Mountain Ash, CF45 4YE is a freehold terraced property built between 1900-1929. The property offers approximately 861 square feet of living space. In this location, properties of similar size usually have three bedrooms.

The estimated current market value of the property is £60,813 , which equates to approximately £71 per square foot. It was last sold on 20 May 2019 for £39,999. Since then, the value has increased by £20,814, representing a 52.0% increase, or approximately 7.9% per year.

The current estimated value of £60,813 is:

  • 17.7% lower than the average property price on Pentwyn Avenue
  • 20.8% lower than the average in the CF45 4YE postcode area
  • and 61.6% lower than the average price for Mountain Ash as a whole

This property has had 2 EPC inspections with recorded tenure information. It was recorded once as rented and once as owner-occupied, indicating a change in how it was used over time.

At the most recent EPC inspection on 17 October 2025, the property was recorded as rented.

View sold house prices in CF45 4YE

Building approximate location

About Property

Type
Terraced House
Built
1900-1929
Interior Size
861 sq ft
Tenure
Freehold
Price (estimate)
£60,813
Price Per sq ft (estimate)
£71
Bedroom Count (estimate)
3 bedrooms

EPC Summary

111 Pentwyn Avenue, Mountain Ash, Rhondda Cynon Taff, Mid Glamorgan, CF45 4YE has an Energy Performance Certificate (EPC) rating of D, based on the latest assessment carried out on 17 Oct 2025.

This property uses a gas-fired boiler and radiators, connected to the mains gas supply, as its main heating source. Hot water is provided from main heating system. The windows are fully double glazed.

The previous EPC assessment was conducted on 7 Oct 2015. The rating of D remains the same, but the energy efficiency score improved by 19.6%.

Since the previous assessment, several changes were observed:

  • The wall construction or insulation changed from sandstone or limestone, as built, no insulation (assumed) to sandstone, as built, no insulation (assumed), with no change in energy efficiency (very poor).
  • The windows were upgraded from partial double glazing to fully double glazed.
  • The lighting was updated from low energy lighting in 13% of fixed outlets to excellent lighting efficiency, with efficiency improving from poor to very good.
Heating Type
Boiler and radiators, mains gas
Good
Hot Water
From main system
Good
Roof
Pitched, 75 mm loft insulation
Average
Walls
Sandstone, as built, no insulation (assumed)
Very Poor
Windows
Fully double glazed
Poor
Lighting
Excellent lighting efficiency
Very Good

Compared to CF45 4YE

17 th / 41
Price Rank
21% lower than average
19 th / 32
Size Rank
5% smaller than average
12 th / 32
Price Per Sq FT Rank
16% lower than average

Compared to other properties in CF45 4YE , this house's estimated value ranks 17th out of 41. Based on price per square foot, it ranks 12th out of 32 properties. In terms of size, this home ranks 19th out of 32 properties in its postcode area.

Sale History

Today
£60,813
streetscan.co.uk estimate
+52 %
20 May 2019
£39,999
Leasehold
+21.2 %
2 Nov 2017
£33,000
Leasehold
-21.4 %
13 Sep 2004
£42,000
Leasehold
+425 %
14 Feb 1997
£8,000
Leasehold

Area Insights

Similar Properties Sold Nearby

rooms: 5
size: 990 sq ft
sale price: £70,000
sale date: 26 Jan 2024
rooms: 3
size: 753 sq ft
sale price: £79,000
sale date: 4 Aug 2023
rooms: 4
size: 904 sq ft
sale price: £165,000
sale date: 2 Jun 2023
rooms: 4
size: 829 sq ft
sale price: £35,000
sale date: 20 Dec 2022
rooms: 5
size: 893 sq ft
sale price: £67,000
sale date: 16 Sep 2020

Data Sources

The property at 111 Pentwyn Avenue, Mountain Ash, CF45 4YE appears four times in the Land Registry records, with the latest transaction recorded on 20 May 2019. It also has two Energy Performance Certificates (EPC) entries, the earliest dating back to 17 Oct 2025. We use this data, to estimate the property's characteristics and current market value.

This website uses public sector information from:

These datasets are licensed under the Open Government Licence v3.0.
This website is not affiliated with or endorsed by HM Land Registry or DLUHC.


Disclaimer: StreetScan.co.uk makes all reasonable efforts to ensure the information provided on this website is current and accurate; however, no warranties or representations are made as to its completeness or accuracy. StreetScan.co.uk expressly disclaims any and all liability for any loss, damage, or expense arising directly or indirectly from the use of, or reliance upon, such information.