Promenade Llanfairfechan, Conwy

107 addresses across 5 postcodes (LL33), about 650 m (0.4 miles) long, classed as a local access road. USRN 46600675.

  • Sales: 64 recorded sales since 1995; in 2024 the median was £268,750 across 2 sales.
  • Energy: 36 homes have an energy certificate (C: 11, D: 13, E: 8, F: 4).
  • 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 Conwy costs £2,473 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is Llanfairfechan, about 650 m (0.4 miles) away in a straight line.
  • Green space: The nearest park or garden, Victoria Gardens, is about 50 m away.
  • Air: Background air pollution in 2024 was 2.8 µg/m³ of nitrogen dioxide and 4.6 of PM2.5, within UK legal limits.
  • Height: Its addresses are -1 to 6 m above sea level.
  • Noise: 100 of its 107 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Plas Menai Surgery, about 450 m (0.3 miles) away.
  • People: About 290 people lived in the census areas around it in 2021; 61% of households owned their home and 42% of adults held a degree or other higher qualification.
  • Crime: 3 crimes were recorded within 250 m between September 2025 and August 2026, most often anti-social behaviour.

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.

Sales by year (standard sales only; repossessions and buy-to-let transfers excluded)
YearSalesMedian priceLowestHighest
20242£268,750£187,500£350,000
20221£220,000£220,000£220,000
20191£325,000£325,000£325,000
20184£111,500£40,000£162,000
20166£143,000£58,000£310,000
20151£291,000£291,000£291,000
20141£85,000£85,000£85,000
20131£118,000£118,000£118,000
20122£105,998£87,000£124,995
20111£95,000£95,000£95,000
20104£207,500£78,000£305,000
20083£92,000£75,000£198,000
Most recent sales (latest 50 of 64)
DateAddressTypePriceNotes
4 Mar 2026ROCKLANDS LL33 0BUFlat or maisonette£76,000Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
11 Dec 20251A, MANOR HOUSE LL33 0BUOther£200,000Not a standard sale (repossession, buy-to-let or transfer).
21 Mar 20253, GLANYDON LL33 0BYFlat or maisonette£120,000Not a standard sale (repossession, buy-to-let or transfer).
18 Oct 20242, GLANYDON LL33 0BYFlat or maisonette£187,500
26 Jun 2024ARFOR LL33 0BYDetached£350,000
25 May 2022APARTMENT 4, GWYLANNEDD LL33 0BYFlat or maisonette£220,000Leasehold.
14 Jun 2019THE WINDSOR LL33 0BUDetached£325,000
21 Dec 2018BASEMENT FLAT WAVECREST LL33 0BUFlat or maisonette£40,000Leasehold.
26 Oct 2018GLANFA LL33 0BYSemi-detached£90,000
18 Jul 2018FIRST FLOOR FLAT, GLANFA LL33 0BYFlat or maisonette£133,000
8 Jun 2018ROCKLANDS LL33 0BUSemi-detached£162,000Leasehold.
27 Nov 2017BASEMENT FLAT, GER-Y-MOR LL33 0BUFlat or maisonette£105,000Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
16 Sep 2016APARTMENT 3, GWYLANNEDD LL33 0BYFlat or maisonette£170,000Leasehold.
29 Jul 2016ROCKLANDS LL33 0BUFlat or maisonette£58,000Leasehold.
10 Jun 2016CYNWY LL33 0BUTerraced£310,000
12 Apr 2016KINGSTON LL33 0BUTerraced£192,500
26 Feb 20165, BALMORAL LL33 0BUFlat or maisonette£116,000Leasehold.
12 Feb 2016FIRST FLOOR FLAT, GLANFA LL33 0BYFlat or maisonette£88,000
8 Jan 2016YENTON LL33 0BYSemi-detached£250,000Not a standard sale (repossession, buy-to-let or transfer).
28 Jul 2015LINDEN LL33 0BUDetached£291,000
1 Dec 2014SECOND FLOOR FLAT, GLANFA LL33 0BYFlat or maisonette£85,000
21 Nov 2013DROMONA LL33 0BUFlat or maisonette£118,000Leasehold.
21 Sep 2012ROCKLANDS LL33 0BUFlat or maisonette£124,995Leasehold.
28 Mar 2012BASEMENT FLAT, GER-Y-MOR LL33 0BUFlat or maisonette£87,000Leasehold.
21 Apr 2011APARTMENT 2, GWYLLANNEDD LL33 0BYFlat or maisonette£95,000Leasehold.
28 Oct 2010GER Y MOR LL33 0BUSemi-detached£250,000
1 Oct 2010BAY VIEW LL33 0BUSemi-detached£305,000
28 May 2010DROMONA LL33 0BUFlat or maisonette£78,000Leasehold.
30 Apr 2010APARTMENT 1, GWYLANEDD LL33 0BYFlat or maisonette£165,000Leasehold.
3 Oct 2008APARTMENT 3, GWYLANNEDD LL33 0BYFlat or maisonette£198,000Leasehold.
30 May 2008DROMONA LL33 0BUTerraced£92,000Leasehold.
16 Feb 2008DROMONA LL33 0BUFlat or maisonette£75,000Leasehold.
23 Nov 2007ST SEIRIOL LL33 0PGDetached£206,000
7 Sep 2007RICHMOND HOUSE LL33 0BUDetached£350,000
24 Aug 2007GWYLANEDD LL33 0BYDetached£290,000
23 Aug 2007BASEMENT FLAT WAVECREST LL33 0BUFlat or maisonette£90,000Leasehold.
17 Aug 2007LLYS TEG LL33 0BUFlat or maisonette£117,000Leasehold.
23 Feb 2007GOODISON LL33 0BUTerraced£125,000
1 Feb 2007ROCKLANDS LL33 0BUFlat or maisonette£120,000Leasehold.
1 Feb 2007ROCKLANDS LL33 0BUFlat or maisonette£120,000Leasehold.
6 Jan 2006LLYS TEG LL33 0BUFlat or maisonette£55,000Leasehold.
6 Apr 2005CYNWY LL33 0BUTerraced£204,000
7 Jan 2005YENTON LL33 0BYTerraced£318,000
1 Apr 2004ARFOR LL33 0BYDetached£83,000
17 Dec 20031, GLANYDON LL33 0BYFlat or maisonette£97,500
27 Jun 2003PAVILION CAFE LL33 0BYDetached£60,000
9 May 2003GWYLANEDD LL33 0BYDetached£155,000
28 Mar 2003DROMONA LL33 0BUFlat or maisonette£60,000Leasehold.
6 Sep 2002ROCKLANDS LL33 0BUFlat or maisonette£50,000Leasehold.
7 Aug 2002LLYS TEG LL33 0BUFlat or maisonette£31,000Leasehold.

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 dates from October 2010 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

36 homes with a current certificate; median floor area 96 m². Most common: Flat (21); Maisonette, mid-terrace (4); House, mid-terrace (3). Built: before 1900 (22); 1900-1929 (13); 2012 onwards (1). Tenure at assessment: owner-occupied (17); rented (private) (14); rented (social) (1).

Each home's certificates and sales (19 addresses)

Council tax

What each band costs in Conwy in 2026-27: Band D £2,473 a year on average, including the police and community council charges.

ABCDEFGHI
£1,649£1,923£2,198£2,473£3,022£3,572£4,121£4,946£5,770

Homes by band in the neighbourhood around this street: most are in band B (33% of about 940 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 31 October 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 138 address points in this street's postcodes, 23 at high risk, 94 at medium risk and 21 at low risk. Each counts once, at the higher of its rivers-and-sea and surface-water risk.

Rivers and the sea alone: 19 at high risk, 96 at medium risk and 23 at low risk. Surface water and small watercourses alone: 4 at high risk, 0 at medium risk and 29 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: at least one 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.

PostcodePlanning zoneAddresses at high / medium / low risk
LL33 0BUzone 3 2 / 53 / 0
LL33 0BYzone 3 7 / 24 / 7
LL33 0DAzone 3 12 / 9 / 4
LL33 0BTzone 3 0 / 8 / 5
LL33 0PGzone 3 2 / 0 / 5

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 107 addresses are between -1 m and 6 m above sea level (5 m on average); the ground rises about 7 m from the lowest to the highest.

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
LL33 0BT100%100%100%0%
LL33 0BU100%100%100%0%
LL33 0BY100%100%100%0%
LL33 0DA100%100%100%0%
LL33 0PG100%100%100%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 stationsLlanfairfechan 38,000 journeys in 2024–25650 m (0.4 miles)
Penmaenmawr 20,000 journeys in 2024–253.6 km (2.2 miles)
Conwy 84,000 journeys in 2024–259.9 km (6.1 miles)
Bus stops3 stops within 400 m (0.2 miles), 14 within 800 m (0.5 miles); nearest Penmaen Park Llanfairfechan210 m
EV charging pointsInstaVolt Charging Station8.5 km (5.3 miles)
Airport with scheduled flightsLiverpool John Lennon Airport LPL75.5 km (47 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 surgeries1 practices within 1.6 km (1 mile); nearest Plas Menai Surgery450 m (0.3 miles)
Pharmacies1 pharmacies within 1.6 km (1 mile); nearest Boots490 m (0.3 miles)
NHS dentists1 practices within 1.6 km (1 mile); nearest Ysbyty Bryn Y Neuadd1.1 km (0.7 miles)
HospitalBryn-Y-Neuadd Hospital1.1 km (0.7 miles)
Police stationBangor Police Station10.8 km (6.7 miles)
Cash machines1 machines within 800 m (0.5 miles); nearest The Cooperative Food Llanfairfechan - Village Road, Village Road Cashzone780 m (0.5 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 Victoria Gardens 4,770 m²50 m
Play area5 within 800 m (0.5 miles); nearest Unnamed 1,880 m²50 m
Playing field1 within 800 m (0.5 miles); nearest Unnamed 2.0 ha510 m (0.3 miles)
AllotmentsUnnamed 1.2 ha1 km (0.6 miles)

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

Landmarks

The nearest historic landmark is Wern Isaf (formerly Rose Briars), a listed building (Grade II*), 460 m (0.3 miles) south-east. 67 listed buildings are within 1 km (0.6 miles), 3 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Wern Isaf (formerly Rose Briars)Listed building, Grade II*460 m (0.3 miles) south-east
Wern Isaf (Rosebriars)Registered park or garden, Grade II480 m (0.3 miles) south-east
Church InstituteListed building, Grade II*720 m (0.4 miles) south
Gwern y Plas Ancient VillageScheduled monument750 m (0.5 miles) south-east
Bryn-y-Neuadd Farmhouse, including attached dairyListed building, Grade II*830 m (0.5 miles) south-west
Bryn-y-NeuaddRegistered park or garden, Grade II1.4 km (0.8 miles) south-west
Hut Circles near Wern NewyddScheduled monument1.7 km (1.1 miles) south-west
The Castles and Town Walls of King Edward in Gwynedd - Beaumaris CastleWorld Heritage Site7.7 km (4.8 miles) west
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Pen-y-ClipCliff or slope1.6 km (1 mile) east
Llanfairfechan BeachBeach1.7 km (1 mile) west
Llŷs-y-gwynt CovertWood2.1 km (1.3 miles) south
Y TeirydLake or reservoir2.5 km (1.5 miles) south-east
Garreg FawrHill2.5 km (1.6 miles) south
Dutchman BankWetland3.6 km (2.2 miles) north-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)2.84010
Fine particles (PM2.5)4.6205
Particles (PM10)7.64015

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
65 to 6910
60 to 64801
55 to 591925
Under 55781

100 of the street's 107 addresses are modelled at 55 dB or more from road traffic, and 26 from railways, 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 Conwy: see them on the Conwy 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 Pant y Rhedyn Welsh and EnglishPrimary7–11300 m Estyn reports · My Local School
Ysgol Babanod Llanfairfechan Church in Wales Welsh and EnglishPrimary3–7830 m (0.5 miles) Estyn reports · My Local School

Food hygiene ratings nearby

Source: Food Standards Agency, Food Hygiene Rating Scheme, extract of 3 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
Split Willow LL33 0PAHotel/bed & breakfast/guest house320 m5 Very good12 Aug 2026
Min y Don Guest House LL33 0BYHotel/bed & breakfast/guest house350 m4 Good16 Apr 2024
Pavillion Cafe LL33 0BYRestaurant/Cafe/Canteen460 m (0.3 miles)3 Generally satisfactory7 Oct 2025
Boots UK Ltd LL33 0PERetailers - other470 m (0.3 miles)Exempt

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.

3 recorded crimes by category
CategoryCrimes
Anti-social behaviour2
Drugs1

Most of these are attached to: On or near Promenade (1); On or near Penmaenmawr Road (1); On or near Shore Road East (1).

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: 286 residents in 144 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 age4943
Children under 1515%17%
Aged 65 and over20%21%

Homes

Around this streetWales
Owned (outright or with a mortgage)61%66%
Owned outright42%38%
Shared ownership0%under 1%
Social rented9%17%
Private rented30%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)21%25%
Long-term sick or disabled (of adults)5%6%
Work mainly from home (of those in work)29%26%
Travel to work by car or van58%61%
By train, Underground, metro or tramunder 1%under 1%
By any public transport, including bus1%3%
On foot or by bicycle9%8%
Work within 10 km (6 miles) of home (of those who travel to work)27%60%
Work 30 km (19 miles) or more away13%10%

Education and languages

Around this streetWales
Degree or other higher qualification, Level 4+ (of adults)42%32%
No qualifications16%20%
Apprenticeship as highest qualification5%6%
Main language English or Welsh (aged 3 and over)97%97%
Cannot speak English well or at all1%under 1%

Deprivation

The neighbourhood around this street 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.

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

  • Energy certificates New energy certificate: band C, flat (lodged 15 October 2026) found 2 November 2026

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.

  • LL33 0BU: 52 addresses of 55 in the postcode
  • LL33 0BY: 36 addresses of 37 in the postcode
  • LL33 0DA: 8 addresses of 23 in the postcode
  • LL33 0BT: 6 addresses of 13 in the postcode
  • LL33 0PG: 5 addresses of 7 in the postcode

Nearby streets

Glanmor Road · Shore Road East · A55 · Maes Dolfor · Penmaenmawr Road · Penmaenmawr Road · Penmaen Park · Penmaen Park · Garthwen · Maes Glanarfon · Shore Road · Maes-y-Glyn

All the streets in LL33 and across Conwy.

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.