Plasnewydd
vs Splott
Plasnewydd has the younger population: 47% of residents are aged 15–29, against 21% in Splott. Homes in Plasnewydd sold for a median of £256,500, 17% above Splott. Splott has more green space nearby (15% within 500 m, against 5%).
People
Plasnewydd has 18,270 residents in 7,719 households; Splott has 14,142 in 6,111. Splott has the higher share of residents aged 65 and over: 10%, 3 percentage points more than Plasnewydd (Cardiff: 15%). Plasnewydd has the higher share of people living alone: 39%, 3.9 percentage points more than Splott (Cardiff: 32%).
Homes and prices
In both, terraced houses are the most common type of home: 43% of homes in Plasnewydd and 53% in Splott. Splott has the higher share of owner-occupied homes: 45%, 10.7 percentage points more than Plasnewydd (Cardiff: 58%). Plasnewydd has the higher share of private renting: 54%, 30.3 percentage points more than Splott (Cardiff: 24%). Over two years, homes sold for a median of £256,500 in Plasnewydd and £220,000 in Splott, against £270,000 across Cardiff.
Surroundings
Splott has the higher share of land within 500 m that is green space: 15%, 9.6 percentage points more than Plasnewydd (Cardiff: 19%). A typical postcode has 342 everyday shops and services within a 15-minute walk in Plasnewydd, and 124 in Splott. The typical postcode is 276 m from the nearest school in Plasnewydd and 435 m in Splott. The typical postcode is 898 m from the nearest tram stop or railway station in Plasnewydd and 1,551 m in Splott. Gigabit-capable broadband reaches 96% of premises in Plasnewydd and 94% in Splott.
Safety
Over 12 months, police recorded 129 crimes and incidents per 1,000 residents in Plasnewydd and 124 in Splott, against 118 across Cardiff. Police.uk records crimes by approximate location, not by where victims or offenders live. Busy streets, shops, stations and nightlife record more. Figures are counts, not a measure of personal risk.
Sources: Census 2021 (ONS) · HM Land Registry Price Paid Data · official school registers · © OpenStreetMap contributors · Environment Agency · data.police.uk, 12 months to Aug 2026 · Ofcom Connected Nations
In brief.
Each ward in a few lines, from its own page.
Plasnewydd is one of 28 wards in Cardiff, home to 18,270 people in 7,719 households (Census 2021). Homes sold for a median of £256,500 over the past two years, 5% below the Cardiff median. On average 5% of the land within 500 metres of a home postcode is green space — 72% below the Cardiff average.
Splott is one of 28 wards in Cardiff, home to 14,142 people in 6,111 households (Census 2021). Homes sold for a median of £220,000 over the past two years, 19% below the Cardiff median. On average 15% of the land within 500 metres of a home postcode is green space — 20% below the Cardiff average.
More comparisons.
Plasnewydd and Splott next to other wards of Cardiff.