Northfields London, Wandsworth

100 addresses across 7 postcodes (SW18), about 170 m long, classed as a local road. USRN 22903622.

  • Sales: 9 recorded sales since 1995; in 2005 the median was £333,000 across 1 sale.
  • Energy: 32 homes have an energy certificate (B: 8, C: 24).
  • Flood: 12 addresses on its postcodes are in areas at high or medium risk of flooding from rivers, the sea or surface water.
  • Council tax: Most homes around it are in council tax band F; Band D in Wandsworth costs £1,028 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 11% to 100% of premises.
  • Transport: The nearest railway station is Wandsworth Town, about 870 m (0.5 miles) away in a straight line.
  • Green space: The nearest park or garden, Wandsworth Park, is about 60 m away.
  • Air: Background air pollution in 2024 was 19.9 µg/m³ of nitrogen dioxide and 8.9 of PM2.5, within UK legal limits.
  • Height: Its addresses are 5 to 7 m above sea level.
  • Noise: 81 of its 100 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Triangle Surgery, about 530 m (0.3 miles) away, with 10 practices within 1.6 km (1 mile).
  • People: About 1,310 people lived in the census areas around it in 2021; 44% of households owned their home and 74% of adults held a degree or other higher qualification.
  • Crime: 202 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
20051£333,000£333,000£333,000
20001£225,000£225,000£225,000
Most recent sales (9)
DateAddressTypePriceNotes
16 Feb 2026UNIT 1, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£285,000Not a standard sale (repossession, buy-to-let or transfer).
8 Sep 2021UNIT 9, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£608,000Not a standard sale (repossession, buy-to-let or transfer).
30 Jan 2020UNIT 9, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£595,000Not a standard sale (repossession, buy-to-let or transfer).
3 Sep 2018UNIT 11, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£625,000Not a standard sale (repossession, buy-to-let or transfer).
6 Dec 2017UNIT 14, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£595,000Not a standard sale (repossession, buy-to-let or transfer).
30 Jun 2017UNIT 7, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£300,000Not a standard sale (repossession, buy-to-let or transfer).
23 Jan 2017UNIT 9, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PEOther£540,000Not a standard sale (repossession, buy-to-let or transfer).
15 Mar 2005UNIT 16, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PETerraced£333,000
20 Apr 2000UNIT 16, NORTHFIELDS PROSPECT BUSINESS CENTRE SW18 1PETerraced£225,000

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 December 2018 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

32 homes with a current certificate; median floor area 85 m². Most common: Flat (27); Maisonette, end-terrace (2); Maisonette, mid-terrace (2). Built: 1996-2002 (32). Tenure at assessment: rented (private) (32).

Each home's certificates and sales (12 addresses)

Council tax

What each band costs in Wandsworth in 2026-27: Band D £1,028 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£685£800£914£1,028£1,257£1,485£1,714£2,056

Homes by band in the neighbourhoods around this street: most are in band F (43% of about 4,370 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 4 neighbourhoods (census areas of about 700 homes each) around it, not just this street; Ministry of Housing, Communities and Local 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: yes, Wandsworth Town (council page). Extensions, demolition, some windows and doors, and work on trees need consent.
  • Listed buildings on or by this street: none.
  • Article 4 direction (removing permitted development rights): none recorded, though not every council has published theirs.
  • Tree preservation orders: none recorded, though not every council has published theirs.
  • Green belt: no.

Brownfield land registered for housing within 1 km (0.6 miles)

Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government), compiled from councils and, for listed buildings, Historic England's National Heritage List. Conservation areas, Article 4 directions, tree preservation areas and the green belt are checked at each postcode's centre. Listed buildings and protected trees are counted on or by this street. Councils publish Article 4 directions, tree preservation orders and brownfield registers to different standards, and some not yet. Planning applications are not here: there is no national open record of them yet.

Roadworks

No street works under way, planned or finished in the last three months on this street, in permits up to 30 September 2026.

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: in this street's postcodes, 2 addresses are in areas at high risk, 10 at medium risk and 57 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.

Rivers and the sea alone: of the 71 homes the Environment Agency counts, 0 are in areas at high risk, 0 medium, 0 low and 31 very low.

High: 3.3% (1 in 30) or more chance of flooding a year. Medium: 1% to 3.3%. Low: 0.1% to 1%. Very low: under 0.1%. The rivers and sea figures allow for flood defences. 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.

PostcodePlanning zoneAddresses at high / medium / low riskGroundwater
SW18 1DDnot in 2 or 3 0 / 0 / 17 unlikely
SW18 1PEnot in 2 or 3 1 / 2 / 3 unlikely
SW18 1NWzone 3 1 / 5 / 8 unlikely
SW18 1UUzone 2
SW18 1PTnot in 2 or 3 0 / 0 / 0 unlikely
SW18 1NPnot in 2 or 3 0 / 3 / 0 unlikely
SW18 1PRzone 3 0 / 0 / 29 unlikely

Sources: Environment Agency Flood risk: postcode search tool data (loaded 29 October 2026), Risk of Flooding from Rivers and Sea: postcodes in areas at risk (loaded 29 October 2026) and Flood Map for Planning (loaded 28 October 2026). 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 the official long-term flood risk service.

© Environment Agency copyright and/or database right 2026. All rights reserved. Some features are based on digital spatial data from the Centre for Ecology & Hydrology, © NERC (CEH); the postcode data is produced in part from PAF® and Multiple Residence Data, © Royal Mail Group Limited.

Height above sea level

The street's 103 addresses are between 5 m and 7 m above sea level (6 m on average).

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
SW18 1DD98%11%11%0%
SW18 1NP73%73%64%0%
SW18 1NW100%100%100%0%
SW18 1PE100%100%100%0%
SW18 1PR100%100%100%0%
SW18 1PT100%100%100%0%
SW18 1UU100%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 stationsWandsworth Town 3.8 million journeys in 2024–25870 m (0.5 miles)
Putney 5.6 million journeys in 2024–251.1 km (0.7 miles)
Imperial Wharf 2.9 million journeys in 2024–252 km (1.2 miles)
Underground, metro or tramEast Putney Underground Station750 m (0.5 miles)
Putney Bridge Underground Station1 km (0.6 miles)
Parsons Green Underground Station1.6 km (1 mile)
Bus stops9 stops within 400 m (0.2 miles), 36 within 800 m (0.5 miles); nearest Wandsworth Riverside Quarter Pier70 m
Bus or coach stationVictoria Station5.5 km (3.4 miles)
Ferry terminalWandsworth Riverside Quarter Pier290 m
Car parks1 within 800 m (0.5 miles); nearest Riverside West Car Park800 m (0.5 miles)
EV charging points65 within 1.6 km (1 mile); nearest ubitricity250 m
Airport with scheduled flightsLondon Heathrow Airport LHR18 km (11 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 surgeries10 practices within 1.6 km (1 mile); nearest Triangle Surgery530 m (0.3 miles)
Pharmacies14 pharmacies within 1.6 km (1 mile); nearest Mansons Pharmacy530 m (0.3 miles)
NHS dentists19 practices within 1.6 km (1 mile); nearest Putney Bridge Dental Centre100 m
HospitalChelsea And Westminster Hospital2.9 km (1.8 miles)
Police stationMetropolitan Police Service920 m (0.6 miles)
Cash machines2 machines within 800 m (0.5 miles); nearest Tesco Bank ATM620 m (0.4 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 garden2 within 800 m (0.5 miles); nearest Wandsworth Park 9.0 ha60 m
Largest park within 800 m (0.5 miles)King George's Park 20 ha730 m (0.5 miles)
Play area7 within 800 m (0.5 miles); nearest Unnamed 2,010 m²110 m
Playing fieldHurlingham Club Grounds 7.9 ha1 km (0.6 miles)
AllotmentsUnnamed 1,060 m²1.4 km (0.9 miles)

Within 800 m (0.5 miles): 2 parks and gardens, 29 hectares in all.

Landmarks

The nearest historic landmark is Wandsworth Park, a registered park or garden (Grade II), 260 m north-west. 41 listed buildings are within 1 km (0.6 miles), 5 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Wandsworth ParkRegistered park or garden, Grade II260 m north-west
Church of All SaintsListed building, Grade II*550 m (0.3 miles) south-east
Hurlingham HouseListed building, Grade II*550 m (0.3 miles) north
Church RowListed building, Grade II*570 m (0.4 miles) south-east
Ram (Youngs) Brewery ComplexListed building, Grade II*710 m (0.4 miles) south-east
Fulham Palace moated siteScheduled monument1.4 km (0.9 miles) north-west
Fulham PalaceRegistered park or garden, Grade II*1.4 km (0.9 miles) north-west
Palace of Westminster, Westminster Abbey and St. Margaret's ChurchWorld Heritage Site6.7 km (4.1 miles) north-east
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Battersea ReachTidal water2.2 km (1.4 miles) north-east
Seven Post PondLake or reservoir2.4 km (1.5 miles) south-west
King's MereLake or reservoir2.7 km (1.7 miles) south-west
Ashen Grove WoodWood2.8 km (1.7 miles) south
Jerry's HillHill3.2 km (2 miles) south-west
Small ProfitsWetland3.8 km (2.4 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)19.94010
Fine particles (PM2.5)8.9205
Particles (PM10)14.44015

All three are within the UK legal limits; nitrogen dioxide and PM2.5 are above the WHO guideline, as in most towns and cities.

Road, rail and aircraft noise

Source: Defra, strategic noise mapping Round 4 (England), modelled for 2021 and published in December 2023, and its airport maps of the same round for the fifteen largest English airports, published in April 2026: 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 smaller airports and airfields, 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, 54 dB for railways and 45 dB for aircraft (below the lowest level shown here).

Addresses by modelled noise level (Lden, dB)
LevelRoad trafficRailwaysAircraft
70 to 74100
65 to 691510
60 to 644320
55 to 5922400
Under 551957100

81 of the street's 100 addresses are modelled at 55 dB or more from road traffic, and 43 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 Wandsworth: see them on the Wandsworth page.

Nearest schools

Source: Get Information About Schools (Department for Education), 1 November 2026; Ofsted monthly management information as at September 2026. Distances are straight lines from the middle of the street to the school; catchments and admissions are not shown. Since November 2025 Ofsted gives report-card grades by area, not one overall grade; older grades stand until a school is re-inspected.

SchoolPhaseAgesDistanceInspection
St Joseph's Catholic Primary and Nursery School Roman CatholicPrimary3–11230 m No published inspection
Brandlehow Primary SchoolPrimary3–11430 m (0.3 miles) Good (Oct 2023, overall grade under the previous framework)
West Hill Primary SchoolPrimary2–11560 m (0.3 miles) No published inspection
Ashcroft Technology AcademySecondary11–18710 m (0.4 miles) Report card (Dec 2025): Curriculum and teaching: Exceptional; Achievement: Exceptional; Attendance and behaviour: Exceptional; Personal development and wellbeing: Strong standard; Inclusion: Strong standard; Leadership and governance: Exceptional; Post-16 provision: Exceptional; Safeguarding standards: Met
The Hurlingham AcademySecondary11–16790 m (0.5 miles) Outstanding (Mar 2024, overall grade under the previous framework)
Anglo Portuguese School of LondonPrimary4–11930 m (0.6 miles) Good (Mar 2023, overall grade under the previous framework)
St Faith's CofE Primary School Church of EnglandPrimary3–111 km (0.6 miles) No published inspection
Sulivan Primary SchoolPrimary3–111.1 km (0.7 miles) No published inspection
St Michael's CofE Primary School Church of EnglandPrimary3–111.2 km (0.8 miles) Good (Jun 2022, overall grade under the previous framework)
New King's Road SchoolPrimary3–111.3 km (0.8 miles) No published inspection
Allfarthing Primary SchoolPrimary3–111.4 km (0.8 miles) No published inspection
Lady Margaret School Church of EnglandSecondary11–181.4 km (0.9 miles) Outstanding (Nov 2023, overall grade under the previous framework)

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
Vinexus Ltd SW18 1PEDistributors/Transporters30 m5 Very good31 Jul 2024
Putt in the Park SW15 2PARestaurant/Cafe/Canteen80 m5 Very good19 Aug 2026
SMILEON Kitchen SW18 1GGRestaurant/Cafe/Canteen100 m5 Very good11 Nov 2025
The Cats Back SW18 1PPPub/bar/nightclub110 m3 Generally satisfactory19 Dec 2025
Yume School UK Ltd SW18 1GGHospitals/Childcare/Caring Premises120 m5 Very good21 May 2026
Darya London SW18 1PPRestaurant/Cafe/Canteen160 m4 Good7 Oct 2025
Queen Adelaide SW18 1NPPub/bar/nightclub170 m5 Very good24 Aug 2026
The Wandsworth Preschool Limited SW18 1GZHospitals/Childcare/Caring Premises170 m5 Very good2 Jul 2026
Hudsons SW18 1LPRetailers - other180 m5 Very good7 May 2026
Tiggers Nursery School SW15 2PAHospitals/Childcare/Caring Premises200 m5 Very good27 Apr 2026
Kat Coffee Company SW18 1NLRestaurant/Cafe/Canteen210 m3 Generally satisfactory2 Jan 2026
Kat Kitchen SW18 1NLRetailers - other210 m4 Good12 Aug 2026
SALASPARK LTD SW18 1GNRestaurant/Cafe/Canteen240 m4 Good11 Nov 2025
The Tuck Company SW15 2EGManufacturers/packers240 m5 Very good1 Jul 2026
The Hop Pole SW18 1HRPub/bar/nightclub280 m5 Very good12 Jan 2026

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.

202 recorded crimes by category
CategoryCrimes
Anti-social behaviour56
Violence and sexual offences49
Other theft24
Vehicle crime22
Burglary13
Drugs12
Public order9
Criminal damage and arson8
Shoplifting2
Bicycle theft2
Theft from the person2
Possession of weapons2
Other crime1

Most of these are attached to: On or near Oakhill Place (34); On or near Northfields (23); On or near Santos Road (22); On or near Adelaide Road (22); On or near Eastfields Avenue (18).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the 4 Output Areas (small census areas of about 125 households each) that this street's postcodes are in: 1,311 residents in 581 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 streetEngland
Median age3440
Children under 1515%17%
Aged 65 and over8%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)44%61%
Owned outright18%33%
Shared ownership7%1%
Social rented4%17%
Private rented45%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work79%57%
Unemployment (of those working or looking for work)4%6%
Retired (of adults)9%22%
Long-term sick or disabled (of adults)under 1%4%
Work mainly from home (of those in work)63%32%
Travel to work by car or van7%48%
By train, Underground, metro or tram12%4%
By any public transport, including bus16%8%
On foot or by bicycle12%10%
Work within 10 km (6 miles) of home (of those who travel to work)87%65%
Work 30 km (19 miles) or more away2%8%

Education and languages

Around this streetEngland
Degree or other higher qualification, Level 4+ (of adults)74%34%
No qualifications6%18%
Apprenticeship as highest qualification1%5%
Main language English (aged 3 and over)87%91%
Cannot speak English well or at all1%2%

Deprivation

The 4 neighbourhoods around this street are in deciles 8 to 10 of 10 on the English Indices of Deprivation 2025, where 1 is the most deprived tenth of England's 33,755 neighbourhoods and 10 the least.

Source: English Indices of Deprivation 2025 (Ministry of Housing, Communities and Local 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.

  • SW18 1DD: 48 addresses of 57 in the postcode
  • SW18 1PE: 42 addresses
  • SW18 1NW: 3 addresses of 22 in the postcode
  • SW18 1UU: 3 addresses of 54 in the postcode
  • SW18 1PT: 2 addresses of 75 in the postcode
  • SW18 1NP: 1 address of 24 in the postcode
  • SW18 1PR: 1 address of 77 in the postcode

Nearby streets

Point Pleasant · Prospect Cottages · Eastfields Avenue · Osiers Road · Oakhill Place · Lightermans Walk · Putney Bridge Road · North Passage · Pembridge Place · Adelaide Road · Knightley Walk · Fawe Park Road

All the streets in SW18 and across Wandsworth.

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.