Postcode insights

CF45 4BL

Seymour Street

Mountain Ash

Interactive map showing CF45 4BL and surrounding area

Detailed insights for CF45 4BL

Overview

Postcode CF45 4BL is located in an urban city, within the Mountain Ash ward of Rhondda Cynon Taf in the Wales region, and forms part of the Mountain Ash area. It has high deprivation and very high crime levels, with around 122.7 crimes per 1,000 residents per year, roughly 1.4× the Wales average of 86 per 1,000. The average income per household in Mountain Ash is £40,773 per year. The nearest station is Mountain Ash, about 0.2 miles away. There are no primary and no secondary schools in the area. There is 1 park nearby, the closest medium park is Gwynifor Park.

Crime rate
9/10
Crimes per 1k residents
123
Deprivation level
8/10
Income level
3/10
Social housing
4%
Connectivity
N/A
Flood Risk
N/A
Noise Level
No noise

Deprivation level

8/10

Mountain Ash has a high level of deprivation, ranked at position 468 out of 32,844 areas in the United Kingdom, placing it within the top 1% most deprived areas in Wales.

Crime level

9/10

Mountain Ash has a very high crime rate, with approximately 122.7 reported incidents per 1,000 population each year.

Social housing

4%

Approximately 4.0% of homes on this street are social housing provided by a local council or housing association. Across the surrounding area, around 15.4% of dwellings are socially rented.

Income level

3/10

The average income per household in Mountain Ash is £40,773 per year.

Noise Level

No noise

No significant noise sources from railways or roads near CF45 4BL.

Transport

The nearest station is Mountain Ash located about 0.2 miles away. There are 2 stations nearby.

Nearby public transport stations for CF45 4BL
DistanceNameLinesDirections
0.2 mi

Mountain Ash

N/A

Walking directions to Mountain Ash
0.8 mi

Fernhill

N/A

Walking directions to Fernhill

Parks

Nearby parks and green spaces for CF45 4BL
DistanceNameSizeDirections
0.4 miGwynifor ParkMediumWalking directions to Gwynifor Park

Area Profile

Population
253
Population density
8,089.2 per km²

Crime

Crime per 1,000 population

Violence and sexual offences
69.23(+104%)
Public order
17.14(+109%)
Anti-social behaviour
16.45(+26%)
Criminal damage and arson
10.28(+40%)
Vehicle crime
7.54(+163%)
Wales average

Demographics

Ethnic groups

British
240
94.49%
Other Asian
7
2.76%
Indian
3
1.18%
Other Mixed or Multiple ethnic groups
2
0.79%
White and Black African (mixed)
1
0.39%
Total population: 254

Economics

Education (age 16+)

Level 4+ (Degree)
51
23.94%
No qualifications
50
23.47%
Level 2 (GCSEs 9-4)
38
17.84%
Level 3 (A level)
32
15.02%
Level 1 (GCSEs 3-1)
25
11.74%
Total 16+ residents: 213

Housing

Housing tenure

Owns outright
54
43.2%
Owns with a mortgage
44
35.2%
Private landlord or letting agency
17
13.6%
Other forms of private rent
5
4%
Other social rented
4
3.2%
Total households: 125

Property prices in Mountain Ash

Median price£150,000
Price per sq ft£151
Sales (last 12 months)56
Typical range (middle 50%)£117K – £193K

Based on 56 recent sales, the median property price is £150,000 (about £151 per square foot) in Mountain Ash area, with individual transactions ranging from £60,000 up to £415,000.

Prices by property typelast 12 months

Median sale price, median price per square foot, sales count, and percentile information for each property type in Mountain Ash over the last year.
TypeSalesMedian£/sq ft
Detached7£309,500£254
Semi-Detached10£205,000£185
Terraced38£131,250£137
Flats1£65,000£104

10-year price trendmedian sale price in Mountain Ash

Sale price

Ten year median sale price trend for each property type in Mountain Ash.
YearDetachedSemi-DetachedTerraced
2016£125,000£114,950£63,000
2017£149,500£118,000£72,000
2018£179,995£133,950£78,500
2019£189,995£141,000£80,000
2020£185,000£134,998£85,000
2021£185,000£115,000£91,750
2022£275,000£180,000£110,000
2023£267,500£147,500£102,500
2024£246,000£173,998£114,500
2025£330,000£169,975£120,000
2026£309,500£212,499£150,000
Ten year median sale price trend for each property type in Mountain Ash.

Price per sq ft

Ten year median sale price per square foot trend for each property type in Mountain Ash.
YearDetachedSemi-DetachedTerraced
2016£159£82£82
2017£133£105£84
2018£180£132£91
2019£189£138£97
2020£170£133£95
2021£169£112£110
2022£231£169£126
2023£212£168£133
2024£204£161£138
2025£210£183£131
2026£236£183£148
Ten year median sale price per square foot trend for each property type in Mountain Ash.

Price distribution by property typelast 12 months

Price distribution by property type for Mountain Ash in the last year.

Recent sales

There were 48 recent sold properties in the last 18 months near CF45 4BL.

Recent sold properties in the last 18 months near CF45 4BL
DateAddressTypeTenurePriceMap
14 Jul 202513, London Street, Mountain Ash, CF45 4BNTerracedFreehold£115,000
30 Apr 202522, Allen Street, Mountain Ash, CF45 4BDTerracedFreehold£120,000
12 Dec 202528, The Poplars, Mountain Ash, CF45 4BPTerracedLeasehold£70,000
04 Jul 202550, Phillip Street, Mountain Ash, CF45 4BGTerracedFreehold£125,000
21 Mar 202586, Phillip Street, Mountain Ash, CF45 4BGTerracedFreehold£135,000

Schools

In the CF45 4BL postcode area, located within Mountain Ash, there are 0 primary and 0 secondary schools in close proximity.

Nearby primary and secondary schools for CF45 4BL
DistancePhaseNameTypeRating
0.1 miNot applicableCaegarw Primary SchoolWelsh establishment

N/A

0.3 miNot applicableOur Lady's R.C. Primary SchoolWelsh establishment

N/A

0.4 miNot applicableDarrenlas Primary SchoolWelsh establishment

N/A

Local amenities

7 nearby supermarkets & convenience stores within mi of CF45 4BL

Nearby supermarkets & convenience stores for CF45 4BL
DistanceNameAddressDirections
0 miFamily Shopper3 Jeffrey Street, Mountain Ash, CF45 4ADWalking directions to Family Shopper
0.1 miLifestyle ExpressCommercial Street, Rhondda Cynon Taf, CF45 3NSWalking directions to Lifestyle Express
0.2 miCentral Food Store26b Oxford Street, Mountain Ash, CF45 3PGWalking directions to Central Food Store
0.2 miMount Valley Store and Off LicenceAberdare Road, Rhondda Cynon Taf, CF45 3PSWalking directions to Mount Valley Store and Off Licence
0.2 miIceland63-65 Oxford Street, Mountain Ash, CF45 3HDWalking directions to Iceland

Local councillor and member of parliament

Elected local representatives for CF45 4BL, including ward councillors and the local member of parliament.

Local councillors

Andrew Morgan

Mountain Ash - Elected 5 May 2022

Labour Party

Wendy Treeby

Mountain Ash - Elected 5 May 2022

Labour Party

Member of parliament

Alex Davies-Jones

Pontypridd - Elected 4 Jul 2024

Labour Party

Geographic Information

RegionWalesUKL
DistrictRhondda Cynon TafW06000016
Parliamentary ConstituencyPontypriddW07000106
WardMountain AshW05001092
ParishMountain Ash EastW04001016
MSOA (Middle Layer Super Output Area)Mountain AshW02000257
LSOA (Lower Layer Super Output Area)Rhondda Cynon Taf 006BW01001205
Police ForceSouth Wales
Postcode Introduced1980-01-01

Frequently asked questions about CF45 4BL

Is CF45 4BL (Mountain Ash) safe?

The area around CF45 4BL records about 123 crimes per 1,000 residents per year, which is a very high crime rate for England: it scores 9 out of 10 on the Area360 crime scale, where 10 is the highest crime level. Across Wales as a whole the rate is about 86 per 1,000. The most common offences locally are violence and sexual offences, anti-social behaviour and public order.

What is the average house price near CF45 4BL?

The median sale price around CF45 4BL in Mountain Ash is £150,000 (about £151 per square foot) based on 56 registered sales according to HM Land Registry data.

What schools are near CF45 4BL?

There are 7 schools close to CF45 4BL, including Caegarw Primary School, Our Lady's R.C. Primary School and Darrenlas Primary School. Ratings are from the latest Ofsted inspections.

What is the nearest station to CF45 4BL?

The closest station to CF45 4BL is Mountain Ash, about 351 m away.

How deprived is the area around CF45 4BL?

CF45 4BL scores 8 out of 10 on the deprivation scale, where 10 is the most deprived. Its neighbourhood ranks 468 of 32,844 in England on the official Index of Multiple Deprivation (rank 1 is the most deprived).

Who represents CF45 4BL (Mountain Ash) in Parliament and on the local council?

The Member of Parliament for Pontypridd covering CF45 4BL is Alex Davies-Jones (Labour Party), elected at the 2024 general election. The area is represented by 2 local councillors: Andrew Morgan (Labour Party) and Wendy Treeby (Labour Party).

Data Sources

All data is sourced from official UK government agencies and public datasets. Last updated: 16/07/2026. Read more about how our statistics are calculated.