LL55 3ND Gwynedd
Live postcode, introduced January 1980. Ward: Deiniolen.
Streets
Council tax
What each band costs in Gwynedd in 2026-27: Band D £2,469 a year on average, including the police and community council charges.
| A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|
| £1,646 | £1,920 | £2,194 | £2,469 | £3,017 | £3,566 | £4,115 | £4,938 | £5,760 |
Homes by band in the neighbourhood around this postcode: most are in band B (46% of about 900 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
Rivers, the sea or surface water: of the 6 address points in this postcode, 1 at high risk, 0 at medium risk and 1 at low risk. Each counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: none is in an area at risk. Surface water and small watercourses alone: 1 at high risk, 0 at medium risk and 1 at low risk.
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 6 addresses are between 257 m and 270 m above sea level (260 m on average).
Broadband
Superfast 67%, ultrafast 67%, gigabit 67% of premises; 33% cannot get 10 Mbit/s. Ofcom Connected Nations, data as at January 2026.
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Bangor (Gwynedd) 720,000 journeys in 2024–25 | 8.5 km |
| Llanfairpwll 39,000 journeys in 2024–25 | 10.3 km | |
| Bus stops | 3 stops within 400 m, 10 within 800 m; nearest Cynfi Old School Deiniolen | 370 m |
| Bus or coach station | Bangor Bus Station Stand A | 9.0 km |
| Car parks | Padarn Country Park Car Park | 2.8 km |
| EV charging points | Roam Charging Station | 4.3 km |
| Airport with scheduled flights | Liverpool John Lennon Airport LPL | 87.0 km |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | The Surgery | 3.2 km |
| Pharmacies | Fferyllfa Ellis Jones Pharmacy | 3.2 km |
| NHS dentists | Bethesda Dental Clinic | 4.9 km |
| Hospital | Ysbyty Gwynedd | 7.5 km |
| Police station | Bangor Police Station | 9.0 km |
| Cash machines | Costcutter, A4244, Deiniolen Cashzone | 1.6 km |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Parc Gweledig Padarn 217 ha | 2.0 km |
| Play area | 1 within 800 m; nearest Unnamed 1,470 m² | 520 m |
| Playing field | Unnamed 7,020 m² | 860 m |
| Allotments | Unnamed 1,510 m² | 2.6 km |
Landmarks
The nearest historic landmark is The Slate Landscape of Northwest Wales - Dinorwig Slate Quarry Mountain Landscape, a World Heritage Site, 1.6 km south. 4 listed buildings are within 1.0 km.
| Name | What it is | From the postcode's centre |
|---|---|---|
| The Slate Landscape of Northwest Wales - Dinorwig Slate Quarry Mountain Landscape | World Heritage Site | 1.6 km south |
| Hut Group and Enclosure Near Cae Cerrig | Scheduled monument | 1.6 km north-west |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Drosgol Reservoir | Lake or reservoir | 580 m north |
| Moel Rhiwen | Hill | 1.2 km north |
| Allt-ddu | Wood | 2.3 km south |
| Marchlyn Bach | Lake or reservoir | 2.3 km east |
| Y Glyn | Island | 2.5 km south-west |
| Cwm Marchlyn | Hollow | 3.3 km south-east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 1.7 | 40 | 10 |
| Fine particles (PM2.5) | 4.2 | 20 | 5 |
| Particles (PM10) | 6.7 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
Defra's noise maps cover England only; the Welsh Government's 2022 maps are not shown here yet.
People and work
Who lives here
| Around this postcode | Wales | |
|---|---|---|
| Median age | 45 | 43 |
| Children under 15 | 14% | 17% |
| Aged 65 and over | 17% | 21% |
Homes
| Around this postcode | Wales | |
|---|---|---|
| Owned (outright or with a mortgage) | 79% | 66% |
| Owned outright | 42% | 38% |
| Shared ownership | 0% | under 1% |
| Social rented | 9% | 17% |
| Private rented | 12% | 17% |
Work and commuting
| Around this postcode | Wales | |
|---|---|---|
| Adults (16 and over) in work | 62% | 54% |
| Unemployment (of those working or looking for work) | 8% | 6% |
| Retired (of adults) | 21% | 25% |
| Long-term sick or disabled (of adults) | 2% | 6% |
| Work mainly from home (of those in work) | 25% | 26% |
| Travel to work by car or van | 66% | 61% |
| By train, Underground, metro or tram | 0% | under 1% |
| By any public transport, including bus | 1% | 3% |
| On foot or by bicycle | 8% | 8% |
| Work within 10 km of home (of those who travel to work) | 46% | 60% |
| Work 30 km or more away | 13% | 10% |
Education and languages
| Around this postcode | Wales | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 58% | 32% |
| No qualifications | 10% | 20% |
| Apprenticeship as highest qualification | 3% | 6% |
| Main language English or Welsh (aged 3 and over) | 99% | 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.