Over the past 30 years, there have been 40 property sales recorded in the CF45 4BB postcode area. The highest sale price reached £215,000, while the most recent sale was for a semi-detached house sold in March 2026 for £189,998.

The estimated average property value in CF45 4BB currently stands at £171,822, which is approximately 27.1% higher than the city average, indicating a potentially more desirable or in-demand location.

In terms of size, the average price per square metre is approximately £1,714.

Property prices in CF45 4BB have risen by 7.8% over the past year , with a total increase of 44.5% over the past five years , and a long-term rise of 87.3% over the past decade .

The most common type of property sold in the area is semi-detached, making up around 55% of transactions , followed by terraced.

Housing in CF45 4BB is predominantly owner-occupied, with an estimated 70% of homes being lived in by the owners.

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Property Sales

36 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 5bed
📐 840 sq ft
Today
£90,881
streetscan.co.uk estimate
28 Nov 2019
£62,000
More details

37 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 3bed
📐 764 sq ft
Today
£97,115
streetscan.co.uk estimate
22 Aug 2022
£90,000
More details

38 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 6bed
📐 949 sq ft
Today
£208,341
streetscan.co.uk estimate
30 Oct 2020
£149,950
30 Oct 2020
£160,000
View +2 more
More details

39 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 6bed
📐 1163 sq ft
Today
£205,939
streetscan.co.uk estimate
23 Apr 2021
£160,000
29 Jun 2016
£118,000
View +1 more
More details

40 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 6bed
📐 1098 sq ft
Today
£187,679
streetscan.co.uk estimate
11 Oct 2001
£40,000
8 Jun 2000
£14,000
View +1 more
More details

42 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 5bed
📐 797 sq ft
Today
£90,329
streetscan.co.uk estimate
6 Sep 2024
£85,000
22 Jun 2007
£92,500
View +2 more
More details

44 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

Today
£99,482
streetscan.co.uk estimate
4 Feb 2022
£85,000
10 May 2007
£70,000

45 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 3bed
📐 721 sq ft
Today
£139,612
streetscan.co.uk estimate
20 Jun 2022
£125,000
31 May 2013
£60,000
More details

47 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 4bed
📐 807 sq ft
Today
£125,379
streetscan.co.uk estimate
22 Aug 2023
£115,000
7 Feb 2011
£62,500
More details

48 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

Today
£130,443
streetscan.co.uk estimate
17 Dec 2008
£70,000

49 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 4bed
📐 732 sq ft
Today
£205,011
streetscan.co.uk estimate
18 Sep 2019
£137,000
5 Jun 2018
£61,000
More details

50 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 6bed
📐 1378 sq ft
Today
£213,631
streetscan.co.uk estimate
3 Jan 2020
£145,000
4 Jun 2004
£79,950
View +1 more
More details

51 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 6bed
📐 1475 sq ft
Today
£236,688
streetscan.co.uk estimate
12 Mar 2015
£125,000
More details

56 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 4bed
📐 1109 sq ft
Today
£152,863
streetscan.co.uk estimate
14 Feb 2019
£98,800
More details

57 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Terraced
🛏️ 6bed
📐 1389 sq ft
Today
£255,328
streetscan.co.uk estimate
8 Dec 2021
£215,000
26 Jul 2006
£105,500
More details

58 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 5bed
📐 840 sq ft
Today
£172,533
streetscan.co.uk estimate
25 Jan 2019
£112,500
28 Mar 2017
£60,000
View +1 more
More details

59 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 5bed
📐 1098 sq ft
Today
£189,998
streetscan.co.uk estimate
9 Mar 2026
£189,998
More details

60 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

Today
£308,797
streetscan.co.uk estimate
16 Feb 2000
£68,000

61 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

Today
£353,155
streetscan.co.uk estimate
17 Feb 2004
£135,000

63 Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 7bed
📐 1421 sq ft
Today
£207,435
streetscan.co.uk estimate
16 Sep 2022
£193,000
More details

Ty Cerrig Allen Street, Mountain Ash, Rhondda Cynon Taff, CF45 4BB

🏠 Semi-detached
🛏️ 5bed
📐 850 sq ft
Today
£158,229
streetscan.co.uk estimate
29 Apr 2022
£135,000
More details

Area Insights

Data Sources

Properties at CF45 4BB appear fourty times in the Land Registry records, with the latest transaction recorded on 9 Mar 2026. It also has seventeen Energy Performance Certificates (EPC) entries, the earliest dating back to 13 Jun 2019. 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.