Town Pop. 1,575

Living in Trethomas: Liveability Score 56/100

Last updated 7 August 2026

Our overall score for Trethomas is 56/100, built from 7 categories. Broadband is where Trethomas most outperforms the national norm: 91/100 against a median of 60/100 across UK towns. Furthest below the national norm is safety, at 71/100 against a town median of 88/100.

Trethomas places 5th of 6 in the CF83 postcode district. Against the wider CF83 district average of 63/100, that is 7 points below. Its broadband score runs 17 points above the CF83 district's 74/100. For the surrounding area, see CF83 postcode district.

56
OUT OF 100
Average
Score for:

Settlement area

The built-up area boundary and the postcodes its score is averaged from, each shaded by its own score. Clustered pins are other settlements. Tap one to view or compare it, or zoom in to reveal more.

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Each postcode is coloured by its own overall score on the default weighting. Scores are filled in as postcodes get searched on the site, so a blue dot just means that postcode hasn't been scored yet.

Trethomas scores 56 but individual postcodes tell the full story

See the exact score for any postcode, side by side with Trethomas.
Or compare:
CF83 1AB CF83 2AA CF83 3AA CF83 4AB CF83 8AA CF83 9AE CF83

Score breakdown

Safety & Environment

Safety
71
118.1 crimes per 1,000 residents · last 12 months Above the England & Wales average of 94.3
Crime rate vs national average · last 12 months
Violence and sexual offences 83 crimes
↑ 58% above national average
Anti-social behaviour 29 crimes
↑ 21% above national average
Criminal damage and arson 25 crimes
↑ 134% above national average
Public order 18 crimes
↑ 75% above national average
Other theft 8 crimes
↓ 18% below national average
other 23 crimes
Highest-crime locations
Loading map…
  1. 1 Sports/Recreation Area 37 crimes
  2. 2 Dickens Court 31 crimes
  3. 3 Grays Gardens 24 crimes

Source: data.police.uk · England & Wales only

Environment
78
Air Quality NO₂ 7.419 · PM2.5 5.43 · PM10 8.69 µg/m³
77
Green Space 79
Parks Adequate 3
Sports Pitches Some 1
Allotments None
Golf Courses None
Tennis Courts None
Bowling Greens None
Playgrounds Some 1

Services

Schools
—

School inspection data is not available for this area.

Healthcare
33
A&E departmentsWeston General Hospital20.2 mi
Southmead Hospital25.5 mi
St Michael's Hospital26 mi
Hospital waitsHampshire And Isle Of Wight Healthcare NHS Foundation Trust6.1 mi
Routine referral (median)9 wks
Treated within 18 weeks70%
A&E seen within 4 hrs99.3%
Nearest GP surgeryTY BRYN SURGERY1 mi
GP capacity1,348 patients per GP

A&E, dentist and pharmacy data, and CQC ratings, are currently available for England only, not Wales.

Broadband
91
Full fibre (FTTP)88.8%
available across Caerphilly
Gigabit-capable · incl. cable
93.8%
Ultrafast (300+ Mbps)
93.8%
Superfast (30+ Mbps)
100%
Ofcom Connected Nations · 32 postcodes · full fibre at local-authority level

Economy & Bills

Economic Health
—
Employment rate45.9%
Below the Great Britain average of 57.3% of residents aged 16+
Economic activity (16+)
Employed45.9%Unemployed5.1%Retired20.7%Student5.8%Other inactive22.5%
Occupation mix
Professional & managerial23.7%Skilled & technical33.5%Routine & elementary42.9%
Highest qualification (16+)
No qualifications25%Level 1 (1–4 GCSEs)13%Level 2 (5+ GCSEs)16.4%Level 3 (A levels)15.2%Level 4+ (degree & above)21.5%Apprenticeship5.5%Other (incl. vocational)3.3%
Home ownership53%
Census 2021/22 (Great Britain)
Bills
73
Council tax Caerphilly · 2025-26
A £1,304
B £1,521
C £1,739
D £1,956
E £2,391
F £2,825
G £3,260
H £3,912
Energy South Wales region
Typical bill regional £1,641/yr
Ofgem price cap, GB average · Apr–Jun 2026
Typical home efficiency local EPC band C
Water Dŵr Cymru Welsh Water
Average bill regional £502/yr
Combined water & sewerage · GB average £520

Transport

Transport
39
Crosskeys 2.6 mi
Caerphilly 2.7 mi
Energlyn & Churchill Park 2.7 mi
J30 M4 3.6 mi
J30 M4 4.1 mi
J29A A48(M) 4.9 mi

Lifestyle

Lifestyle
30
Pubs & Bars None
Restaurants & Cafes None
Supermarkets & Convenience None
Retail Shopping None
Takeaways Some 1
Fitness None

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House Prices

Not enough recent sales

Fewer than 10 sales were recorded in Trethomas in the last 12 months, which isn't enough for a reliable median. Smaller villages often fall below this in any given year. Figures come from HM Land Registry Price Paid data and are updated monthly, so this may fill in later.

Nearby places

Machen 50 1.2 mi away ⇄
Bedwas 66 1.3 mi away ⇄
Cwmfelinfach 50 1.7 mi away ⇄
Ynysddu 47 2.4 mi away ⇄
Caerphilly 64 2.7 mi away ⇄
Llanbradach 64 2.9 mi away ⇄
Risca 59 3.1 mi away ⇄
Abercarn 55 3.9 mi away ⇄
Maesycwmmer 61 4.2 mi away ⇄
Pontllanfraith 60 4.4 mi away ⇄
Abertridwr and Senghenydd 57 4.5 mi away ⇄
Rogerstone 62 4.6 mi away ⇄

Frequently asked questions

Is Trethomas a nice place to live?

Trethomas is a decent place to live for many people. Our liveability score for Trethomas is 56/100, placing it among an average areas in the UK across nine categories: safety, schools, healthcare, environment, transport, broadband, lifestyle, economic health, and bills.

How safe is Trethomas?

Trethomas has crime levels below the national average. Our safety score is 71/100. There were 186 crimes recorded in the area over the past 12 months.

Postcode districts in Trethomas

CF83 63 ⇄

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