Heath
vs Llanishen
Llanishen has the younger population: 15% of residents are aged 15–29, against 15% in Heath. Homes in Heath sold for a median of £380,000, 31% above Llanishen. Llanishen has more green space nearby (21% within 500 m, against 16%).
People
Heath has 12,603 residents in 5,178 households; Llanishen has 10,139 in 4,484. Llanishen has the higher share of residents aged 65 and over: 21%, 1.2 percentage points more than Heath (Cardiff: 15%). Llanishen has the higher share of people living alone: 37%, 12 percentage points more than Heath (Cardiff: 32%).
Homes and prices
In both, semi-detached houses are the most common type of home: 59% of homes in Heath and 41% in Llanishen. Heath has the higher share of owner-occupied homes: 80%, 14 percentage points more than Llanishen (Cardiff: 58%). The share of private renting is about the same in both (15% and 14%). Over two years, homes sold for a median of £380,000 in Heath and £290,000 in Llanishen, against £270,000 across Cardiff.
Surroundings
Llanishen has the higher share of land within 500 m that is green space: 21%, 5.2 percentage points more than Heath (Cardiff: 19%). A typical postcode has 128 everyday shops and services within a 15-minute walk in Heath, and 79 in Llanishen. The typical postcode is 487 m from the nearest school in Heath and 359 m in Llanishen. The typical postcode is 600 m from the nearest tram stop or railway station in Heath and 627 m in Llanishen. Gigabit-capable broadband reaches 96% of premises in Heath and 90% in Llanishen.
Safety
Over 12 months, police recorded 72 crimes and incidents per 1,000 residents in Heath and 89 in Llanishen, 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.
Heath is one of 28 wards in Cardiff, home to 12,603 people in 5,178 households (Census 2021). Homes sold for a median of £380,000 over the past two years, 41% above the Cardiff median. On average 16% of the land within 500 metres of a home postcode is green space — 13% below the Cardiff average.
Llanishen is one of 28 wards in Cardiff, home to 10,139 people in 4,484 households (Census 2021). Homes sold for a median of £290,000 over the past two years, 7% above the Cardiff median. On average 21% of the land within 500 metres of a home postcode is green space — 15% above the Cardiff average.
More comparisons.
Heath and Llanishen next to other wards of Cardiff.