LL57 4UD Gwynedd
Live postcode, introduced January 1980. Ward: Arllechwedd.
Streets
- Unnamed street near Howe Street, Glasinfryn: 3 addresses
- Unnamed street, Minffordd: 3 addresses
- Unnamed street, Glasinfryn: 1 address
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 D (28% of about 610 homes).
Planning and heritage
- Conservation area: no postcode centre in this postcode is in one.
- Listed buildings within 100 m of this postcode: 2.
- Article 4 directions, tree preservation orders and green belt: Wales has no national record of these; the council's planning department holds them.
Listed buildings
- Bryn-y-meddyg, grade II
- Railway bridge at Coed Howel, grade II
Flood risk
Rivers, the sea or surface water: of the 9 address points in this postcode, 4 at high risk, 0 at medium risk and 2 at low risk. Each counts once, at the higher of its rivers-and-sea and surface-water risk.
Rivers and the sea alone: 0 at high risk, 0 at medium risk and 2 at low risk. Surface water and small watercourses alone: 4 at high risk, 0 at medium risk and 0 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: the postcode centre is in flood zone 2. Zone 2 is between 0.1% and 1% a year from rivers (0.1% and 0.5% from the sea), ignoring defences. Welsh zones include an allowance for climate change.
Height above sea level
The postcode's 9 addresses are between 52 m and 72 m above sea level (56 m on average).
Broadband
Superfast 100%, ultrafast 100%, gigabit 100% of premises; 0% 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 | 2.6 km (1.6 miles) |
| Llanfairpwll 39,000 journeys in 2024–25 | 6.5 km (4.1 miles) | |
| Llanfairfechan 38,000 journeys in 2024–25 | 10.9 km (6.8 miles) | |
| Bus stops | 0 stops within 400 m (0.2 miles), 3 within 800 m (0.5 miles); nearest Pont Ty-gwyn Glasinfryn | 540 m (0.3 miles) |
| Bus or coach station | Bangor Bus Station Stand A | 3 km (1.9 miles) |
| EV charging points | Osprey Charging Station | 2.4 km (1.5 miles) |
| Airport with scheduled flights | Liverpool John Lennon Airport LPL | 85.8 km (53 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Upcc At Ysbyty Gwynedd | 3 km (1.8 miles) |
| Pharmacies | Tesco Instore Pharmacy | 2.3 km (1.4 miles) |
| NHS dentists | Bulkeley Dental Practice | 2.7 km (1.6 miles) |
| Hospital | Ysbyty Gwynedd | 3 km (1.8 miles) |
| Police station | Bangor Police Station | 3 km (1.8 miles) |
| Cash machines | Cashpoint® 268 High Street Lloyds Bank | 2.9 km (1.8 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Unnamed 530 m² | 2.2 km (1.4 miles) |
| Play area | 1 within 800 m (0.5 miles); nearest Unnamed 3,010 m² | 700 m (0.4 miles) |
| Playing field | Unnamed 5.3 ha | 1.5 km (0.9 miles) |
| Allotments | Moelyci Allotments 2.0 ha | 1.5 km (1 mile) |
Landmarks
The nearest historic landmark is Carnedd Howel Round Cairn, a scheduled monument, 610 m (0.4 miles) east. 21 listed buildings are within 1 km (0.6 miles).
| Name | What it is | From the postcode's centre |
|---|---|---|
| Carnedd Howel Round Cairn | Scheduled monument | 610 m (0.4 miles) east |
| Enclosed Hut Circle Settlement at Cororion Rough | Scheduled monument | 1 km (0.6 miles) south-east |
| Penrhyn Slate Quarry Railroad | Scheduled monument | 1.6 km (1 mile) east |
| The Slate Landscape of Northwest Wales - Penrhyn Slate Quarry and Bethesda, and the Ogwen Valley to Port Penrhyn | World Heritage Site | 2.5 km (1.5 miles) east |
| Name | What it is | From the postcode's centre |
|---|---|---|
| Coed Ty-gwy | Wood | 330 m south |
| Waen-wen Plantation | Wood | 700 m (0.4 miles) south-west |
| Llyn Cororion | Lake or reservoir | 1.1 km (0.7 miles) south-east |
| Bryniau | Hill | 2 km (1.3 miles) north-west |
| Abercegin | Wetland | 3.6 km (2.2 miles) north |
| Porth y Wrach | Tidal water | 3.8 km (2.4 miles) north-west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 3.3 | 40 | 10 |
| Fine particles (PM2.5) | 4.5 | 20 | 5 |
| Particles (PM10) | 8.0 | 40 | 15 |
All three are within both the UK limits and the WHO guidelines.
Road and rail noise
| Level | Road traffic | Railways |
|---|---|---|
| 75 dB or more | 1 | 0 |
| 60 to 64 | 6 | 0 |
| 55 to 59 | 1 | 0 |
| Under 55 | 1 | 9 |
8 of the postcode's 9 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 | 44 | 43 |
| Children under 15 | 14% | 17% |
| Aged 65 and over | 16% | 21% |
Homes
| Around this postcode | Wales | |
|---|---|---|
| Owned (outright or with a mortgage) | 68% | 66% |
| Owned outright | 42% | 38% |
| Shared ownership | 0% | under 1% |
| Social rented | 15% | 17% |
| Private rented | 17% | 17% |
Work and commuting
| Around this postcode | Wales | |
|---|---|---|
| Adults (16 and over) in work | 60% | 54% |
| Unemployment (of those working or looking for work) | 3% | 6% |
| Retired (of adults) | 18% | 25% |
| Long-term sick or disabled (of adults) | 5% | 6% |
| Work mainly from home (of those in work) | 31% | 26% |
| Travel to work by car or van | 58% | 61% |
| By train, Underground, metro or tram | 0% | under 1% |
| By any public transport, including bus | under 1% | 3% |
| On foot or by bicycle | 10% | 8% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 55% | 60% |
| Work 30 km (19 miles) or more away | 21% | 10% |
Education and languages
| Around this postcode | Wales | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 42% | 32% |
| No qualifications | 14% | 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 5 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 Unnamed street near Howe Street.