A4086 Caernarfon, Gwynedd

1 address across 1 postcode (LL55), about 150 m long, classed as a a road. USRN 46400007.

  • Flood: At least one postcode centre is in flood zone 3.
  • Council tax: Most homes around it are in council tax band B; Band D in Gwynedd costs £2,469 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 75% of premises.
  • Transport: The nearest railway station is Llanfairpwll, about 9.9 km (6.2 miles) away in a straight line.
  • Green space: The nearest park or garden is about 680 m (0.4 miles) away.
  • Air: Background air pollution in 2024 was 3.8 µg/m³ of nitrogen dioxide and 4.5 of PM2.5, within UK legal limits.
  • Height: It is about 14 m above sea level.
  • Noise: 1 of its 1 addresses is modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Meddygfa Hafan, about 600 m (0.4 miles) away, with 2 practices within 1.6 km (1 mile).
  • People: About 250 people lived in the census areas around it in 2021; 31% of households owned their home and 31% of adults held a degree or other higher qualification.
  • Crime: 379 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.

Sales on this street

Source: HM Land Registry Price Paid Data, sales registered up to 28 August 2026, loaded 28 October 2026. Sales reach the register two weeks to two months after completion, so the last two months are incomplete. Matched by postcode and street name.

No sales recorded on this street since January 1995 under this street name.

Energy performance certificates

Source: Energy Performance of Buildings Register (MHCLG), register as at 1 November 2026. Latest certificate per address; certificates last ten years, so the oldest here and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

No certificates found for addresses on this street.

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.

ABCDEFGHI
£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 street: most are in band B (48% of about 1,010 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10; some small counts withheld), for the neighbourhood (census area of about 700 homes) around it, not just this street; Welsh Government, council tax levels 2026-27. Bands are charged as fixed shares of Band D; the actual bill depends on the parish and on discounts such as the single-person discount. Check a home's own band with the official council tax band checker.

Planning and heritage

  • Conservation area: no postcode centre in this street's postcodes is in one.
  • Listed buildings on or by this street: 1.
  • 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

Source: DataMapWales (Welsh Government): conservation areas compiled from the councils, and Cadw's listed buildings. Conservation areas are checked at each postcode's centre; some councils' boundaries in this layer have not been updated for years, so the council's own map is the one to rely on. Listed buildings are counted on or by this street. Planning applications are not here: there is no national open record of them.

Roadworks

Street works permits come from the Department for Transport's Street Manager, which covers England only.

Source: Department for Transport, Street Manager open data, permits and works up to 30 September 2026. It is published once a month, so works arranged or started since then are not shown, and dates are the ones planned unless the works have started or finished. Emergency works are often permitted after they begin.

Flood risk

Rivers, the sea or surface water: of the 21 address points in this street's postcodes, 0 at high risk, 5 at medium risk and 16 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 21 at low risk. Surface water and small watercourses alone: 0 at high risk, 5 at medium risk and 14 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 3. Zone 3 is a 1% (1 in 100) or greater annual chance of flooding from rivers, or 0.5% from the sea, ignoring defences. Welsh zones include an allowance for climate change.

Sources: Natural Resources Wales Flood Risk Assessment Wales: rivers, sea and surface water (loaded 30 October 2026), and Flood Map for Planning: rivers and sea (loaded 29 October 2026); address points from OS Open UPRN and the ONS UPRN Directory. Flood zones are checked at each postcode's centre point. These are models of areas, which their publishers say are not suitable for showing whether an individual property is at risk, and they do not cover flooding from sewers or drains. Check an address on Natural Resources Wales's flood risk map.

Contains Natural Resources Wales information © Natural Resources Wales and database right. All rights reserved. Some features of this information are based on digital spatial data licensed from the UK Centre for Ecology & Hydrology © UKCEH. Defra, Met Office and DARD Rivers Agency © Crown copyright. © Cranfield University. © James Hutton Institute.

Height above sea level

The street's address is about 14 m above sea level.

Source: Ordnance Survey, OS Terrain 50, July 2026: the height of the ground on a 50 m grid, read at each address, in metres above Ordnance Datum (mean sea level at Newlyn). It is the lie of the land, not floor or threshold levels, and is accurate to a few metres. Being low-lying is not in itself a flood risk; the flood section above says what the flood maps show.

Broadband

Source: Ofcom Connected Nations, data as at January 2026. Percentages are of premises in each postcode that can get the service, not take-up or speed achieved.

Availability by postcode (% of premises)
PostcodeSuperfast (30 Mbit/s+)Ultrafast (300 Mbit/s+)GigabitBelow 10 Mbit/s
LL55 1NW88%75%75%0%

Getting around

Sources: Department for Transport, NaPTAN (every public transport stop), as at 31 October 2026; Office of Rail and Road, Estimates of station usage 2024–25 (which stations are on the National Rail network, and their journeys: entries and exits in the year to March); OurAirports (public domain, kept by volunteers); car parks and charging points from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings from Meta, Microsoft, Foursquare and others: not an official register, so some will be missing, private or out of date. Distances are straight lines from the middle of the street, not routes, and say nothing about how often anything runs. Stations opened since the end of ORR's year appear when ORR publishes the next one, each December; heritage railways are left out.

NearestDistance
Railway stationsLlanfairpwll 39,000 journeys in 2024–259.9 km (6.2 miles)
Bodorgan 7,410 journeys in 2024–2512.2 km (7.6 miles)
Bangor (Gwynedd) 720,000 journeys in 2024–2512.9 km (8 miles)
Bus stops16 stops within 400 m (0.2 miles), 50 within 800 m (0.5 miles); nearest William Street Path Caernarfon70 m
Bus or coach stationCaernarfon Bus Station Stand C90 m
Car parks1 within 800 m (0.5 miles); nearest Snowdon St Parking160 m
EV charging points1 within 1.6 km (1 mile); nearest MFG Charging Station630 m (0.4 miles)
Airport with scheduled flightsLiverpool John Lennon Airport LPL97.3 km (60 miles)

Local services

Sources: NHS Organisation Data Service, as at 31 October 2026: GP practices, community pharmacies and dental practices with an NHS contract, open now, each placed at the centre of its postcode; hospitals are NHS trust and Welsh health board sites named as hospitals, and may not have an emergency department. Police stations and cash machines from Overture Maps Foundation, release 2026-10-21.0, which gathers business listings: not an official register, so some will be missing or out of date. Distances are straight lines from the middle of the street. Nothing here says whether a practice is taking new patients or a dentist new NHS patients.

NearestDistance
GP surgeries2 practices within 1.6 km (1 mile); nearest Meddygfa Hafan600 m (0.4 miles)
Pharmacies2 pharmacies within 1.6 km (1 mile); nearest Boots70 m
NHS dentists2 practices within 1.6 km (1 mile); nearest Dannadd Davies Dental Practice380 m
HospitalBrynseiont Hospital1.2 km (0.8 miles)
Police stationCaernarfon Police Station540 m (0.3 miles)
Cash machines2 machines within 800 m (0.5 miles); nearest BR Spar Min-Y-Nant Stores Cashzone430 m (0.3 miles)

Parks and green space

Source: Ordnance Survey, OS Open Greenspace, April 2026: public parks and gardens, play spaces, playing fields and allotments, with their entrances. Distances are straight lines from the middle of the street to a site's nearest entrance (or its edge where none is recorded), not walking routes; sizes are the area OS maps for each site. Some sites, such as school playing fields, may not be open to the public.

NearestDistance
Park or garden1 within 800 m (0.5 miles); nearest Unnamed 2.2 ha680 m (0.4 miles)
Play area10 within 800 m (0.5 miles); nearest Unnamed 1,150 m²50 m
Playing field2 within 800 m (0.5 miles); nearest Unnamed 7,550 m²510 m (0.3 miles)
Allotments1 within 800 m (0.5 miles); nearest Unnamed 1,900 m²660 m (0.4 miles)

Within 800 m (0.5 miles): 1 park or garden, 2.2 hectares in all.

Landmarks

The nearest historic landmark is Caernarfon Royal Town Council Offices, including 10 Bangor Street, a listed building (Grade II*), 240 m north-west. 250 listed buildings are within 1 km (0.6 miles), 7 of them Grade I and 12 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Caernarfon Royal Town Council Offices, including 10 Bangor StreetListed building, Grade II*240 m north-west
22 Bangor StreetListed building, Grade II*280 m north-west
Capel PendrefListed building, Grade II*310 m north-west
Caernarfon Harbour Trust OfficesListed building, Grade II*320 m west
Lower Roman FortScheduled monument350 m south
Caernarfon Town WallsScheduled monument390 m west
The Castles and Town Walls of King Edward in Gwynedd - Caernarfon Castle and Town WallsWorld Heritage Site410 m (0.3 miles) west
Castell CaernarfonScheduled monument430 m (0.3 miles) west
Morfa Common ParkRegistered park or garden, Grade II1.1 km (0.7 miles) south
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Twt HillHill320 m north
Coed HelenWood830 m (0.5 miles) south-west
Hendy CovertWood1.3 km (0.8 miles) south-west
Traeth GwylltWetland2.1 km (1.3 miles) north
Gypsy Wood LakeLake or reservoir2.3 km (1.4 miles) south
Ynys LomIsland3.8 km (2.4 miles) west

Sources: Historic England's registers through planning.data.gov.uk (MHCLG), and Cadw through DataMapWales (Welsh Government): World Heritage Sites within 10 km (6.2 miles), battlefields within 5 km (3.1 miles), registered parks and gardens within 3 km (1.9 miles), scheduled monuments within 2 km (1.2 miles), and Grade I and II* listed buildings within 1 km (0.6 miles). Ordnance Survey, OS Open Names, October 2026: named hills, valleys, lakes, woods, wetlands and coast (it has no rivers). Distances are in a straight line to the middle of each site, and being on a register does not mean there is public access.

Air quality

Source: Defra, modelled background air pollution, annual means for 2024, for the 1 km square that holds the middle of the street. These are background levels, away from the kerb: beside a busy road nitrogen dioxide in particular can be several times higher. UK limits are the legal annual limits for England and Wales; the World Health Organization's 2021 guidelines are much stricter, and most towns and cities are above them.

Annual means in µg/m³ (micrograms per cubic metre of air)
PollutantHereUK limitWHO guideline
Nitrogen dioxide (NO2)3.84010
Fine particles (PM2.5)4.5205
Particles (PM10)7.74015

All three are within both the UK limits and the WHO guidelines.

Road and rail noise

Source: Welsh Government, Environmental Noise Mapping 2022 (Wales), modelled with Defra's noise model for every road and railway in Wales and published in August 2023, through DataMapWales: Lden, the average sound level over a whole day with extra weight for the evening and night, on a 10 m grid, read at each address. These are models of traffic, not measurements; they leave out aircraft, industry and neighbours, and a room at the back of a house is often much quieter than the front. The World Health Organization's guidelines are 53 dB for road traffic and 54 dB for railways.

Addresses by modelled noise level (Lden, dB)
LevelRoad trafficRailways
70 to 7410
Under 5501

1 of the street's 1 addresses is modelled at 55 dB or more from road traffic, above the WHO guidelines.

Climate, daylight and earthquakes

Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Gwynedd: see them on the Gwynedd page.

Nearest schools

Source: Welsh Government address list of schools in Wales, October 2026 (maintained schools only, placed at their postcode). Distances are straight lines from the middle of the street to the school; catchments and admissions are not shown. Estyn, which inspects Welsh schools, no longer gives grades; its reports describe each school in words.

SchoolPhaseAgesDistanceInspection
Ysgol Santes Helen Roman Catholic Welsh mediumPrimary3–11260 m Estyn reports · My Local School
Ysgol Gynradd Maesincla Church in Wales Welsh mediumPrimary3–11760 m (0.5 miles) Estyn reports · My Local School
Ysgol Syr Hugh Owen Welsh mediumSecondary11–19800 m (0.5 miles) Estyn reports · My Local School
Ysgol Yr Hendre Welsh mediumPrimary3–11860 m (0.5 miles) Estyn reports · My Local School
Ysgol Y Gelli Welsh mediumPrimary3–111.2 km (0.7 miles) Estyn reports · My Local School

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 1 November 2026. Each rating is shown with the date it was given; a business may have been re-inspected since the extract. Within 500 m (0.3 miles) of the middle of the street.

BusinessTypeDistanceRatingRated
Pool Street Superstore LL55 2ABRetailers - other60 m5 Very good11 Jun 2025
Boots The Chemist LL55 2ALRetailers - other70 mExempt
The Little Wren (Wren Wellness) LL55 2AERetailers - other80 mExempt
Michael Heard Hughes LL55 2AFRetailers - other110 m5 Very good17 Jun 2025
Caru Kebabs LL55 2AFTakeaway/sandwich shop110 m5 Very good22 Oct 2025
Caernarfon and District Ex Service Club LL55 2AFPub/bar/nightclub120 m5 Very good12 Jan 2024
Siop Lleol Chi / Local Shop LL55 2ABRetailers - other120 m1 Major improvement necessary9 Jan 2026
J & C's Chippy LL55 2ADRestaurant/Cafe/Canteen150 m3 Generally satisfactory1 Aug 2025
Y Gegin Fach LL55 1NPRestaurant/Cafe/Canteen150 m5 Very good3 Jul 2025
Lee's Chinese Take Away LL55 1NPTakeaway/sandwich shop150 m4 Good15 May 2025
Penrallt Youth Centre LL55 1NSOther catering premises160 mExempt
Capital Take Away LL55 1NPTakeaway/sandwich shop170 m5 Very good23 Aug 2024
Twthill Vaults LL55 1PBPub/bar/nightclub170 m5 Very good23 Feb 2024
The Eagles LL55 2RFPub/bar/nightclub170 m5 Very good14 Jan 2026
William Hill Plc LL55 1NWRetailers - other170 mExempt

Crime within 250 m

Source: data.police.uk street-level crime, September 2025 to August 2026. Police forces move every crime to the nearest of about 760,000 anonymised map points before publishing, so these are crimes near this street, not on it, and a busy point can collect crimes from a wider area. Counts are of records, not convictions.

379 recorded crimes by category
CategoryCrimes
Violence and sexual offences117
Anti-social behaviour99
Criminal damage and arson35
Public order31
Other theft23
Drugs19
Shoplifting19
Burglary13
Vehicle crime9
Possession of weapons6
Theft from the person3
Other crime3
Bicycle theft2

Most of these are attached to: On or near Penllyn (72); On or near Bridge Street (46); On or near Rhes Segontiwm (39); On or near Parking Area (32); On or near Penrallt Isaf (30).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the Output Area (a small census area of about 125 households) that this street's postcodes are in: 245 residents in 145 households. The census was taken during a lockdown, so working from home is high and travel to work low compared with now. ONS swaps a few records between neighbouring areas and adds small amounts of noise to counts to protect privacy, so small differences mean little. Industry is not published for areas this small.

Who lives here

Around this streetWales
Median age4043
Children under 1511%17%
Aged 65 and over14%21%

Homes

Around this streetWales
Owned (outright or with a mortgage)31%66%
Owned outright17%38%
Shared ownership2%under 1%
Social rented19%17%
Private rented48%17%

Work and commuting

Around this streetWales
Adults (16 and over) in work59%54%
Unemployment (of those working or looking for work)7%6%
Retired (of adults)14%25%
Long-term sick or disabled (of adults)10%6%
Work mainly from home (of those in work)13%26%
Travel to work by car or van59%61%
By train, Underground, metro or tram0%under 1%
By any public transport, including bus4%3%
On foot or by bicycle23%8%
Work within 10 km (6 miles) of home (of those who travel to work)65%60%
Work 30 km (19 miles) or more away10%10%

Education and languages

Around this streetWales
Degree or other higher qualification, Level 4+ (of adults)31%32%
No qualifications22%20%
Apprenticeship as highest qualification8%6%
Main language English or Welsh (aged 3 and over)87%97%
Cannot speak English well or at all3%under 1%

Deprivation

The neighbourhood around this street 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.

Source: Welsh Index of Multiple Deprivation 2025 (Welsh Government), by LSOA (about 1,500 people), through the ONS Postcode Directory. The index combines income, employment, health, education, crime, housing and living environment; it ranks areas against each other and does not describe any one household. Ranks in England and Wales are worked out separately and cannot be compared.

What has changed

Nothing new since the change feed started on 30 October 2026. New sales and energy certificates, and hygiene ratings, school inspections and flood figures nearby, will be listed here as the sources update.

Everything that has changed on and near this street

Postcodes on this street

Source: ONS Postcode Directory August 2026, ONS UPRN Directory September 2026, OS Open Linked Identifiers September 2026. A postcode can cover more than one street; the share shows how many of its addresses are on this one.

  • LL55 1NW: 1 address of 21 in the postcode

Nearby streets

Pool Lane · William Street · Mark Lane · Pen y Graig · Penrallt Isaf · A4871 · Stryd Mari · Penllyn · Tanrallt · Thomas Street · Uxbridge Square · South Penrallt

All the streets in LL55 and across Gwynedd.

What this page cannot tell you

  • Whether a particular house is at risk of flooding, subsiding or anything else: the flood map is a model of areas and there is no property-level data here.
  • What a home is worth now: sales are historic prices for the homes that happened to sell.
  • How safe the street is: crime points are moved to anonymised locations and many crimes are never reported.
  • Whether you would get a place at a school: distances are straight lines, not catchments.
  • Who lives on the street now: census figures describe the small areas around it in March 2021, during a lockdown.
  • How long a journey takes or how often anything runs: transport distances are straight lines to the nearest stops.
  • Whether a GP practice is taking new patients, or a dentist new NHS patients.
  • How loud a home is inside, or noise from industry, neighbours or smaller airfields: noise figures are models of road, rail and air traffic outside.

How each figure on this page is matched to the street and worked out: methodology.