CF45 4DY Rhondda Cynon Taf
Live postcode, introduced January 1980. Ward: Mountain Ash.
Streets
- Toncoch Terrace, Cefnpennar: 37 addresses
- The Avenue, Mountain Ash / Aberpennar: 2 addresses
- Unnamed street near Toncoch Terrace, Cefnpennar: 2 addresses
Council tax
What each band costs in Rhondda Cynon Taf in 2026-27: Band D £2,289 a year on average, including the police and community council charges.
| A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|
| £1,526 | £1,781 | £2,035 | £2,289 | £2,798 | £3,307 | £3,816 | £4,579 | £5,342 |
Homes by band in the neighbourhood around this postcode: most are in band A (60% of about 770 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: none.
- Article 4 directions, tree preservation orders and green belt: Wales has no national record of these; the council's planning department holds them.
Flood risk
None of the 41 address points in this postcode is in an area at high, medium or low risk of flooding from rivers, the sea or surface water on Natural Resources Wales's map. Outside those areas the chance is under 0.1% (1 in 1,000) a year.
High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. The map allows for flood defences. Address points are every property record (UPRN) in the postcode, each counted if it is in an area or within 5 m of one (the maps stop at building walls); a few are not homes, such as garages, business units or caravan pitches. Counts cover whole postcodes, which can include other streets.
Flood zone for planning: no postcode centre is in flood zone 2 or 3. Welsh zones include an allowance for climate change.
Height above sea level
The postcode's 41 addresses are between 210 m and 220 m above sea level (215 m on average).
Broadband
Superfast 100%, ultrafast 91%, gigabit 91% of premises; 0% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Fernhill 27,000 journeys in 2024–25 | 1.1 km (0.7 miles) |
| Cwmbach 50,000 journeys in 2024–25 | 1.5 km (1 mile) | |
| Mountain Ash 131,000 journeys in 2024–25 | 2 km (1.3 miles) | |
| Bus stops | 3 stops within 400 m (0.2 miles), 7 within 800 m (0.5 miles); nearest Cefn Pennar Inn Cefnpennar | 80 m |
| Bus or coach station | Aberdare Bus Station | 3.8 km (2.4 miles) |
| EV charging points | 3 within 1.6 km (1 mile); nearest bp pulse Charging Station | 1.1 km (0.7 miles) |
| Airport with scheduled flights | Cardiff International Airport CWL | 33.5 km (21 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 2 practices within 1.6 km (1 mile); nearest Health Hub Iw | 1 km (0.6 miles) |
| Pharmacies | 1 pharmacies within 1.6 km (1 mile); nearest Knights Abercwmboi Pharmacy | 1.4 km (0.9 miles) |
| NHS dentists | 1 practices within 1.6 km (1 mile); nearest Mountain Ash Dental Dept | 1 km (0.6 miles) |
| Hospital | Ysbyty Cwm Cynon | 1 km (0.6 miles) |
| Police station | South Wales Police | 1.6 km (1 mile) |
| Cash machines | Valley Food Stores Cashzone | 1.6 km (1 mile) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Victoria Pleasure Grounds 3.0 ha | 1.5 km (0.9 miles) |
| Play area | 1 within 800 m (0.5 miles); nearest Unnamed 480 m² | 90 m |
| Playing field | 1 within 800 m (0.5 miles); nearest Unnamed 1.1 ha | 90 m |
| Allotments | Mostyn Street Allotment 8,170 m² | 1.3 km (0.8 miles) |
Landmarks
The nearest historic landmark is Darren Fawr Round Cairns, a scheduled monument, 1.9 km (1.2 miles) north.
| Name | What it is | From the postcode's centre |
|---|---|---|
| Darren Fawr Round Cairns | Scheduled monument | 1.9 km (1.2 miles) north |
| Aberfan: Cemetery, Garden of Remembrance and Former Tip and Slide Area | Registered park or garden, Grade II* | 2.3 km (1.4 miles) east |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Gelli-ddu-fawr Plantation | Wood | 590 m (0.4 miles) east |
| Coed Tir Estyll | Wood | 630 m (0.4 miles) west |
| Coed y Gwaenydd Bâch | Wood | 890 m (0.6 miles) west |
| Cwm Boi | Valley | 1.5 km (0.9 miles) south-west |
| Mynydd Gethin | Hill | 2 km (1.2 miles) north |
| Clydach Reservoir | Lake or reservoir | 4 km (2.5 miles) south |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 5.2 | 40 | 10 |
| Fine particles (PM2.5) | 5.0 | 20 | 5 |
| Particles (PM10) | 7.5 | 40 | 15 |
All three are within the UK legal limits; PM2.5 is above the WHO guideline, as in most towns and cities.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 60 to 64 | 26 | 0 |
| 55 to 59 | 9 | 0 |
| Under 55 | 6 | 41 |
35 of the postcode's 41 addresses are modelled at 55 dB or more from road traffic, above the WHO guidelines.
People and work
Who lives here
| Around this postcode | Wales | |
|---|---|---|
| Median age | 35 | 43 |
| Children under 15 | 20% | 17% |
| Aged 65 and over | 15% | 21% |
Homes
| Around this postcode | Wales | |
|---|---|---|
| Owned (outright or with a mortgage) | 56% | 66% |
| Owned outright | 35% | 38% |
| Shared ownership | 0% | under 1% |
| Social rented | 29% | 17% |
| Private rented | 15% | 17% |
Work and commuting
| Around this postcode | Wales | |
|---|---|---|
| Adults (16 and over) in work | 48% | 54% |
| Unemployment (of those working or looking for work) | 10% | 6% |
| Retired (of adults) | 18% | 25% |
| Long-term sick or disabled (of adults) | 14% | 6% |
| Work mainly from home (of those in work) | 21% | 26% |
| Travel to work by car or van | 73% | 61% |
| By train, Underground, metro or tram | 0% | under 1% |
| By any public transport, including bus | 3% | 3% |
| On foot or by bicycle | 4% | 8% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 56% | 60% |
| Work 30 km (19 miles) or more away | 6% | 10% |
Education and languages
| Around this postcode | Wales | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 17% | 32% |
| No qualifications | 30% | 20% |
| Apprenticeship as highest qualification | 6% | 6% |
| Main language English or Welsh (aged 3 and over) | 100% | 97% |
| Cannot speak English well or at all | 0% | under 1% |
Deprivation
The neighbourhood around this postcode is in decile 3 of 10 on the Welsh Index of Multiple Deprivation 2025, where 1 is the most deprived tenth of Wales's 1,917 neighbourhoods and 10 the least.
The full dossier for this postcode's main street is on Toncoch Terrace.