Allen Street, Mountain Ash

MyStreetCheck free street report: Allen Street, Mountain Ash · 31 October 2026 · www.mystreetcheck.co.uk/mountain-ash-rhondda-cynon-taff/allen-street/

House prices, sold prices and local information for CF45 4BB, CF45 4BD.

Average price (last 12 months)

£189,998

1 sale

Average price (since 2016)

£109,168

28 sales

Price range

£40k – £215k

lowest to highest sale

Last sale

9 Mar 2026

CF45 4BB

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At a glance

House prices£109k averageSince 2016 (few recent sales) Crime91 reportedWithin about a mile, latest month Flood riskNo flood warning areasFrom rivers or the sea Nearest station7 min walkMountain Ash station Ultrafast broadband100% of homesNational average 80% Freehold or leasehold97% freeholdAcross 36 Land Registry sales Planning applicationsChecking…Within 500 m, last 90 days

28 property sales on Allen Street, Mountain Ash have been recorded by HM Land Registry since 2016. In the last 12 months 1 home sold here for an average of £189,998. Most sales here are terraced homes, which have sold for an average of £94,763. 6 homes here have sold more than once since 2016; 6 of them sold for more the second time. By property type, sales here have been 54% terraced, 43% semi-detached, 4% detached. Recorded sale prices on Allen Street range from £39,950 to £215,000. 97% of homes sold here were freehold and 3% leasehold.

House prices on Allen Street compared

CF45 postcode area£148,988

Mountain Ash£148,988

England & Wales£358,701

Average sale price over the last 12 months. Allen Street has had fewer than two sales in that time, so it is left out. See all CF45 house prices.

Average sale price by year

Tenure: 97% freehold and 3% leasehold across 36 recorded sales.

Prices by property type

Type	Sales	Average price	Last sold
Terraced	15	£94,763	30 Apr 2025
Semi-detached	12	£130,021	9 Mar 2026
Detached	1	£75,000	22 Jul 2022

Sold prices on Allen Street

Address	Date	Price	Type	Tenure
20, Allen Street CF45 4BD	26 Jun 2026	£90,000	Terraced	Freehold
59, Allen Street CF45 4BB	9 Mar 2026	£189,998	Semi-detached	Freehold
22, Allen Street CF45 4BD	30 Apr 2025	£120,000	Terraced	Freehold
42, Allen Street CF45 4BB	6 Sep 2024	£85,000	Terraced	Freehold
47, Allen Street CF45 4BB	22 Aug 2023	£115,000	Terraced	Freehold
63, Allen Street CF45 4BB	16 Sep 2022	£193,000	Semi-detached	Freehold
37, Allen Street CF45 4BB	22 Aug 2022	£90,000	Terraced	Freehold
24A, Allen Street CF45 4BD	22 Jul 2022	£75,000	Detached	Freehold
17, Allen Street CF45 4BD	14 Jul 2022	£135,000	Terraced	Freehold
45, Allen Street CF45 4BB	20 Jun 2022	£125,000	Terraced	Freehold
Ty Cerrig, Allen Street CF45 4BB	29 Apr 2022	£135,000	Semi-detached	Freehold
16, Allen Street CF45 4BD	8 Apr 2022	£106,000	Terraced	Freehold
44, Allen Street CF45 4BB	4 Feb 2022	£85,000	Terraced	Freehold
57, Allen Street CF45 4BB	8 Dec 2021	£215,000	Terraced	Freehold
13, Allen Street CF45 4BD	28 May 2021	£65,500	Terraced	Freehold
39, Allen Street CF45 4BB	23 Apr 2021	£160,000	Semi-detached	Freehold
Allen Street Meeting Room, Allen Street	26 Mar 2021	£50,000	Other	Freehold
38, Allen Street CF45 4BB	30 Oct 2020	£149,950	Semi-detached	Freehold
38, Allen Street CF45 4BB	30 Oct 2020	£160,000	Semi-detached	Freehold
4, Allen Street CF45 4BD	30 Apr 2020	£58,000	Terraced	Freehold
The Butchers Arms, 10, Allen Street CF45 4BD	3 Apr 2020	£100,000	Other	Freehold
50, Allen Street CF45 4BB	3 Jan 2020	£145,000	Semi-detached	Freehold
4, Allen Street CF45 4BD	2 Dec 2019	£55,000	Terraced	Freehold
36, Allen Street CF45 4BB	28 Nov 2019	£62,000	Terraced	Freehold
49, Allen Street CF45 4BB	18 Sep 2019	£137,000	Semi-detached	Freehold
5, Allen Street CF45 4BD	16 Aug 2019	£44,000	Terraced	Freehold
56, Allen Street CF45 4BB	14 Feb 2019	£98,800	Semi-detached	Freehold
58, Allen Street CF45 4BB	25 Jan 2019	£112,500	Semi-detached	Freehold
5, Allen Street CF45 4BD	21 Nov 2018	£39,950	Terraced	Freehold
49, Allen Street CF45 4BB	5 Jun 2018	£61,000	Semi-detached	Leasehold
12, Allen Street CF45 4BD	18 May 2018	£70,000	Terraced	Freehold
11, Allen Street CF45 4BD	29 Mar 2018	£45,500	Terraced	Freehold
58, Allen Street CF45 4BB	28 Mar 2017	£60,000	Semi-detached	Freehold
14, Allen Street CF45 4BD	22 Mar 2017	£103,500	Terraced	Freehold
20, Allen Street CF45 4BD	14 Nov 2016	£60,000	Terraced	Freehold
39, Allen Street CF45 4BB	29 Jun 2016	£118,000	Semi-detached	Freehold

Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.

Sale history: homes sold more than once

Address	Sales	Change
20, Allen Street	£60,000 (Nov 2016) → £90,000 (Jun 2026)	+50% over 10 yrs
39, Allen Street	£118,000 (Jun 2016) → £160,000 (Apr 2021)	+36% over 5 yrs
4, Allen Street	£55,000 (Dec 2019) → £58,000 (Apr 2020)	+5% over under a year
49, Allen Street	£61,000 (Jun 2018) → £137,000 (Sep 2019)	+125% over 1 yr
5, Allen Street	£39,950 (Nov 2018) → £44,000 (Aug 2019)	+10% over under a year
58, Allen Street	£60,000 (Mar 2017) → £112,500 (Jan 2019)	+88% over 2 yrs

Buying on Allen Street?

Crime and flood risk near Allen Street

Crime

91 crimes were reported within about a mile of Allen Street in August 2026.

Violence & sexual offences	47
Anti-social behaviour	10
Public order	10
Criminal damage & arson	8
Burglary	4
Drugs	4

Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.

Flood risk

Allen Street is not in or near any Environment Agency flood warning or alert area.

Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.

Getting around, shops and health

Train stations

Mountain Ash station 0.3 mi · 7 min walk
Fernhill station 0.8 mi · 17 min walk
Penrhiwceiber station 1.3 mi · 27 min walk

Nearest bus stops

Cae Garw Primary School (o/s, Troed-y-Rhiw Road) 2 min walk
Lady Aberdare Flats (nr, Granville Terrace) 3 min walk
Mountain Ash Town Hall (after, Mountain Ash Bridge) 4 min walk
New Road (on, New Road (A4059)) 5 min walk

GP surgeries

Meddygfa Glan Cynon Surge
Ty Calon Lan, Oxford Street, Mountain Ash · 0.4 mi
Health Hub Iw
Ysbyty Cwm Cynon, New Road, Mountain Ash · 0.7 mi
Abercwmboi Medical Practice
Abercwmboi Medical Centre, 1-3 John Street, Aberdare · 1.5 mi
Brookside Medical Centre
Heol Afon Taf, Troedyrhiw, Merthyr Tydfil · 2.2 mi

Supermarkets

Morrisons Daily Morrisons Daily Mountain Ash · 0.3 mi
Iceland Iceland Mountain Ash · 0.3 mi
The Co-operative Food Co-op Penrhwiceiber · 1.3 mi
Aldi Aldi Aberaman Park Industrial Estate · 2.0 mi

Pharmacies

Allied Pharmacy Mountain Ash · 0.3 mi
Knights Mountain Ash Pharmacy · 0.4 mi
Knights Penrhiwceiber Pharmacy · 1.3 mi

Dentists

Dental Surgery · 0.3 mi
Mountain Ash Dental Dept · 0.7 mi
Gentle Dental Practice · 3.5 mi

Sources: Department for Transport (NaPTAN), NHS England organisation data, and GEOLYTIX Retail Points (open data). Walking times are estimates from straight-line distance.

Area profile

Homes

	Here	Eng & Wales
Owned	77.7%	62.5%
Private rented	18.5%	20.3%
Social rented	3.8%	17.1%
Households	681

People

	Here	Eng & Wales
Under 15	16.0%	17.4%
Aged 15–64	66.5%	64.1%
Aged 65+	17.5%	18.6%
Residents	1,527

Broadband

	Here	UK
Superfast (30Mbit+)	100%	95%
Ultrafast (300Mbit+)	100%	80%
Gigabit-capable	100%	80%

Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.

Mobile signal

	Here	Eng & Wales
4G indoors, all 4 networks	83%	89%
4G indoors, at least 1 network	100%	100%
4G outdoors, all 4 networks	96%	99%
Calls indoors, all 4 networks	94%	92%

Share of homes across Rhondda Cynon Taf with good coverage (Jul 2025). Signal varies street by street; check your exact address on Ofcom's checker. Source: Ofcom Connected Nations.

Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.

Energy ratings and home sizes on Allen Street

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Who lives around Allen Street

Ethnic group

	Here	Rhondda Cynon Taf
White	98.3%	96.7%
Asian, Asian British or Asian Welsh	1%	1.5%
Mixed or Multiple ethnic groups	0.5%	1%
Black, Black British, Black Welsh, Caribbean or African	0.2%	0.4%
Other ethnic group	0%	0.3%

Religion

	Here	Rhondda Cynon Taf
No religion	51.7%	56.2%
Christian	41.5%	36.4%
Not answered	5.6%	5.8%
Other religion	0.5%	0.5%
Buddhist	0.3%	0.2%
Hindu	0.3%	0.2%
Muslim	0.1%	0.6%
Jewish	0%	–

Country of birth

	Here	Rhondda Cynon Taf
Born in the UK	97.1%	96.3%
Born outside the UK	2.9%	3.7%

Highest qualification

	Here	Rhondda Cynon Taf
Level 4 qualifications and above	29.4%	26.7%
No qualifications	19.1%	24.2%
Level 2 qualifications	18.6%	15%
Level 3 qualifications	16.5%	16.8%
Level 1 and entry level qualifications	8.9%	9.4%
Apprenticeship	4.6%	5.1%
Other qualifications	2.9%	2.7%

General health

	Here	Rhondda Cynon Taf
Very good health	50.8%	44.5%
Good health	30%	31.7%
Fair health	13.3%	15.5%
Bad health	5%	6.3%
Very bad health	0.8%	1.9%

Cars or vans per household

	Here	Rhondda Cynon Taf
1 car or van in household	41.9%	41.8%
2 cars or vans in household	32.2%	26.6%
No cars or vans in household	16.7%	22.2%
3 or more cars or vans in household	9.3%	9.3%

Source: Census 2021 (ONS), via Nomis. Percentages of usual residents or households, as recorded in March 2021.

Figures cover the surrounding neighbourhood (Lower Layer Super Output Area, about 1,500 residents). Full demographics of Rhondda Cynon Taf.

Planning and heritage near Allen Street

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Planning applications near Allen Street

Recent planning applications around Allen Street from the council's planning register. Choose how far to look:

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Council tax here

Rhondda Cynon Taf Band D is £2,289 a year (Band A £1,526). See every band.

Estate agents near Allen Street

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Nearby streets in CF45

See all streets in Mountain Ash All streets in CF45