Wallis Close London, Wandsworth
62 addresses across 3 postcodes (SW11), about 140 m long, classed as a local road. USRN 22905876.
- Sales: 56 recorded sales since 1995; in 2026 the median was £437,500 across 2 sales.
- Energy: 44 homes have an energy certificate (C: 38, D: 6).
- Flood: 3 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 C; Band D in Wandsworth costs £1,028 a year in 2026-27.
- Broadband: Gigabit broadband is available to 91% to 100% of premises.
- Transport: The nearest railway station is Clapham Junction, about 600 m (0.4 miles) away in a straight line.
- Green space: The nearest park or garden, York Gardens, is about 150 m away.
- Air: Background air pollution in 2024 was 19.7 µg/m³ of nitrogen dioxide and 9.1 of PM2.5, within UK legal limits.
- Height: It is about 5 m above sea level.
- Noise: 22 of its 62 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Chatfield Health Care, about 240 m away, with 12 practices within 1.6 km (1 mile).
- People: About 660 people lived in the census areas around it in 2021; 23% of households owned their home and 42% of adults held a degree or other higher qualification.
- Crime: 448 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
Sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2026 | 2 | £437,500 | £400,000 | £475,000 |
| 2025 | 2 | £475,000 | £440,000 | £510,000 |
| 2024 | 1 | £425,000 | £425,000 | £425,000 |
| 2023 | 1 | £360,170 | £360,170 | £360,170 |
| 2022 | 1 | £381,000 | £381,000 | £381,000 |
| 2020 | 1 | £540,000 | £540,000 | £540,000 |
| 2019 | 1 | £440,000 | £440,000 | £440,000 |
| 2018 | 2 | £369,000 | £293,000 | £445,000 |
| 2017 | 1 | £500,000 | £500,000 | £500,000 |
| 2016 | 2 | £381,500 | £350,000 | £413,000 |
| 2015 | 2 | £450,000 | £435,000 | £465,000 |
| 2013 | 2 | £249,750 | £249,500 | £250,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 21 Jul 2026 | 35 SW11 2BA | Flat or maisonette | £400,000 | Leasehold. |
| 12 Feb 2026 | 20 SW11 2BA | Flat or maisonette | £475,000 | Leasehold. |
| 11 Sep 2025 | 26 SW11 2BA | Flat or maisonette | £440,000 | Leasehold. |
| 11 Jul 2025 | 29 SW11 2BA | Flat or maisonette | £510,000 | Leasehold. |
| 23 Aug 2024 | 19 SW11 2BA | Flat or maisonette | £425,000 | Leasehold. |
| 16 Nov 2023 | 55 SW11 2BA | Flat or maisonette | £465,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 1 Sep 2023 | 3 SW11 2BA | Flat or maisonette | £360,170 | Leasehold. |
| 27 May 2022 | 19 SW11 2BA | Flat or maisonette | £381,000 | Leasehold. |
| 30 Nov 2021 | 31 SW11 2BA | Flat or maisonette | £499,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 15 Jul 2020 | 30 SW11 2BA | Flat or maisonette | £540,000 | Leasehold. |
| 31 May 2019 | 11 SW11 2BA | Flat or maisonette | £440,000 | Leasehold. |
| 7 Aug 2018 | 12 SW11 2BA | Flat or maisonette | £315,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 22 Jun 2018 | 18 SW11 2BA | Flat or maisonette | £445,000 | Leasehold. |
| 22 Jun 2018 | 17 SW11 2BA | Flat or maisonette | £293,000 | Leasehold. |
| 18 Oct 2017 | 31 SW11 2BA | Other | £540,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 11 Oct 2017 | 31 SW11 2BA | Flat or maisonette | £432,000 | Leasehold. Not a standard sale (repossession, buy-to-let or transfer). |
| 13 Feb 2017 | 29 SW11 2BA | Flat or maisonette | £500,000 | Leasehold. |
| 23 Sep 2016 | 39 SW11 2BA | Flat or maisonette | £413,000 | Leasehold. |
| 8 Jan 2016 | 3 SW11 2BA | Flat or maisonette | £350,000 | Leasehold. |
| 13 Nov 2015 | 34 SW11 2BA | Flat or maisonette | £465,000 | Leasehold. |
| 6 Nov 2015 | 35 SW11 2BA | Flat or maisonette | £435,000 | Leasehold. |
| 22 Aug 2013 | 3 SW11 2BA | Flat or maisonette | £250,000 | Leasehold. |
| 1 Feb 2013 | 18 SW11 2BA | Flat or maisonette | £249,500 | Leasehold. |
| 10 Feb 2012 | 55 SW11 2BA | Flat or maisonette | £279,000 | Leasehold. |
| 29 Nov 2011 | 19 SW11 2BA | Flat or maisonette | £250,000 | Leasehold. |
| 21 Oct 2011 | 56 SW11 2BA | Flat or maisonette | £210,000 | Leasehold. |
| 3 May 2011 | 23 SW11 2BA | Flat or maisonette | £237,500 | Leasehold. |
| 10 Aug 2009 | 19 SW11 2BA | Flat or maisonette | £220,000 | Leasehold. |
| 29 Jul 2009 | 23 SW11 2BA | Flat or maisonette | £210,000 | Leasehold. |
| 23 Nov 2007 | 24 SW11 2BA | Flat or maisonette | £250,000 | Leasehold. |
| 23 Nov 2007 | 3 SW11 2BA | Flat or maisonette | £225,000 | Leasehold. |
| 27 Apr 2007 | 41 SW11 2BA | Flat or maisonette | £241,500 | Leasehold. |
| 13 Apr 2007 | 42 SW11 2BA | Flat or maisonette | £140,000 | Leasehold. |
| 20 Dec 2006 | 41 SW11 2BA | Flat or maisonette | £210,000 | Leasehold. |
| 11 May 2005 | 35 SW11 2BA | Flat or maisonette | £182,500 | Leasehold. |
| 28 Jun 2004 | 3 SW11 2BA | Flat or maisonette | £159,500 | Leasehold. |
| 23 Mar 2004 | 5 SW11 2BA | Flat or maisonette | £162,000 | Leasehold. |
| 30 Jun 2003 | 41 SW11 2BA | Flat or maisonette | £111,000 | Leasehold. |
| 4 Apr 2003 | 51 SW11 2BA | Flat or maisonette | £130,000 | Leasehold. |
| 26 Nov 2002 | 51 SW11 2BA | Flat or maisonette | £115,000 | Leasehold. |
| 27 May 2002 | 19 SW11 2BA | Flat or maisonette | £160,000 | Leasehold. |
| 22 Mar 2002 | 11 SW11 2BA | Flat or maisonette | £140,000 | Leasehold. |
| 18 Mar 2002 | 35 SW11 2BA | Flat or maisonette | £135,000 | Leasehold. |
| 25 Jan 2002 | 28 SW11 2BA | Flat or maisonette | £159,950 | Leasehold. |
| 18 Jan 2002 | 34 SW11 2BA | Flat or maisonette | £147,500 | Leasehold. |
| 8 Jan 2002 | 20 SW11 2BA | Flat or maisonette | £145,000 | Leasehold. |
| 10 Dec 2001 | 39 SW11 2BA | Flat or maisonette | £140,000 | Leasehold. |
| 8 Dec 2000 | 47 SW11 2BA | Flat or maisonette | £90,000 | Leasehold. |
| 24 Nov 2000 | 24 SW11 2BA | Flat or maisonette | £132,000 | Leasehold. |
| 23 Oct 2000 | 15 SW11 2BA | Flat or maisonette | £128,000 | Leasehold. |
Energy performance certificates
44 homes with a current certificate; median floor area 74 m². Most common: Flat (23); Maisonette, mid-terrace (8); Maisonette, not recorded (6). Built: 1967-1975 (19); 1976-1982 (17); 1950-1966 (3). Tenure at assessment: rented (social) (16); rented (private) (14); owner-occupied (12).
Each home's certificates and sales (17 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.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £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 C (33% of about 2,180 homes).
Planning and heritage
- Conservation area: no postcode centre in this street's postcodes is in one.
- 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)
- Travelodge Hotel, 200 York Road: up to 107 homes, not permissioned (130 m)
- Gartons Industrial Estate, Gartons Way: up to 77 homes, not permissioned (180 m)
- Part of Plantation Wharf, York Place, Gartons Way (Plantation Wharf): up to 125 homes, not permissioned (190 m)
- Unit B, Molasses House, Clove Hitch Quay (Plantation Wharf): up to 5 homes, permissioned (210 m)
- East & West 1,2,3,4, & 8, Square Rigger Row (Plantation Wharf): up to 5 homes, not permissioned (210 m)
- Units 2-8 & 11-14 Port House, Square Rigger Row (Plantation Wharf): up to 11 homes, not permissioned (210 m)
- Units 2, 3, 4, 5, 6, & 7 Leeward House, Square Rigger Row (Plantation Wharf): up to 6 homes, not permissioned (210 m)
- Units 3 to 8 Windward House, Square Rigger Row: up to 6 homes, not permissioned (210 m)
Roadworks
No street works under way, planned or finished in the last three months on this street, in permits up to 31 October 2026.
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 0 addresses are in areas at high risk, 3 at medium risk and 78 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 133 homes the Environment Agency counts, 0 are in areas at high risk, 0 medium, 81 low and 0 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.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| SW11 2BA | zone 3 | 0 / 0 / 21 | unlikely |
| SW11 2AT | zone 3 | 0 / 0 / 25 | unlikely |
| SW11 2AY | zone 3 | 0 / 3 / 32 | unlikely |
Height above sea level
The street's addresses are about 5 m above sea level.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| SW11 2AT | 100% | 100% | 91% | 0% |
| SW11 2AY | 100% | 100% | 100% | 0% |
| SW11 2BA | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Clapham Junction 24 million journeys in 2024–25 | 600 m (0.4 miles) |
| Wandsworth Town 3.8 million journeys in 2024–25 | 790 m (0.5 miles) | |
| Imperial Wharf 2.9 million journeys in 2024–25 | 1.1 km (0.7 miles) | |
| Underground, metro or tram | Parsons Green Underground Station | 1.9 km (1.2 miles) |
| Bus stops | 12 stops within 400 m (0.2 miles), 57 within 800 m (0.5 miles); nearest Wallis Close Clapham Junction | 90 m |
| Bus or coach station | Victoria Station | 4.2 km (2.6 miles) |
| Ferry terminal | St Mary’s Wandsworth Pier Clapham Junction | 330 m |
| Car parks | 3 within 800 m (0.5 miles); nearest Carpark | 700 m (0.4 miles) |
| EV charging points | 59 within 1.6 km (1 mile); nearest Shell Recharge Charging Station | 210 m |
| Airport with scheduled flights | London City Airport LCY | 16.9 km (10 miles) |
| Nearest large airport | London Heathrow Airport LHR | 19.5 km (12 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 12 practices within 1.6 km (1 mile); nearest Chatfield Health Care | 240 m |
| Pharmacies | 19 pharmacies within 1.6 km (1 mile); nearest The Olde Pharmacy | 240 m |
| NHS dentists | 21 practices within 1.6 km (1 mile); nearest Chatfield Dental Centre | 190 m |
| Hospital | Chelsea And Westminster Hospital | 2.1 km (1.3 miles) |
| Police station | Wandsworth Police | 1.2 km (0.7 miles) |
| Cash machines | 2 machines within 800 m (0.5 miles); nearest Tesco Bank ATM | 540 m (0.3 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 6 within 800 m (0.5 miles); nearest York Gardens 2.7 ha | 150 m |
| Largest park within 800 m (0.5 miles) | Wandsworth Common 64 ha | 780 m (0.5 miles) |
| Play area | 15 within 800 m (0.5 miles); nearest Unnamed 240 m² | 80 m |
| Playing field | Falcon Park Community Sports Centre 4,750 m² | 1 km (0.6 miles) |
| Allotments | Unnamed 760 m² | 2.2 km (1.4 miles) |
Within 800 m (0.5 miles): 6 parks and gardens, 70 hectares in all.
Landmarks
The nearest historic landmark is Former Gala Bingo Hall, a listed building (Grade II*), 520 m (0.3 miles) south-east. 27 listed buildings are within 1 km (0.6 miles), 5 of them Grade II*.
| Name | What it is | From the middle of the street |
|---|---|---|
| Former Gala Bingo Hall | Listed building, Grade II* | 520 m (0.3 miles) south-east |
| Church of St Mark | Listed building, Grade II* | 800 m (0.5 miles) south-east |
| Cremorne Bridge, West London Extension Railway Bridge, Battersea | Listed building, Grade II* | 850 m (0.5 miles) north |
| Cremorne Bridge, West London Extension Railway Bridge | Listed building, Grade II* | 910 m (0.6 miles) north |
| Wandsworth Park | Registered park or garden, Grade II | 1.8 km (1.1 miles) west |
| 100, CHEYNE WALK (part of Lindsey House) | Registered park or garden, Grade II | 1.9 km (1.2 miles) north |
| Palace of Westminster, Westminster Abbey and St. Margaret's Church | World Heritage Site | 5.2 km (3.3 miles) north-east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Battersea Reach | Tidal water | 1.1 km (0.7 miles) north |
| Ransome's Dock | Lake or reservoir | 1.8 km (1.1 miles) north-east |
| Fountain Lake | Lake or reservoir | 2.1 km (1.3 miles) north-east |
| Mount Pond | Lake or reservoir | 2.2 km (1.4 miles) south-east |
| Ashen Grove Wood | Wood | 3.7 km (2.3 miles) south-west |
| Jerry's Hill | Hill | 4.7 km (2.9 miles) south-west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 19.7 | 40 | 10 |
| Fine particles (PM2.5) | 9.1 | 20 | 5 |
| Particles (PM10) | 15.4 | 40 | 15 |
All three are within the UK legal limits; all three are above the WHO guideline, as in most towns and cities.
Road, rail and aircraft noise
| Level | Road traffic | Railways | Aircraft |
|---|---|---|---|
| 60 to 64 | 1 | 0 | 0 |
| 55 to 59 | 21 | 0 | 0 |
| Under 55 | 40 | 62 | 62 |
22 of the street's 62 addresses are 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 Wandsworth: see them on the Wandsworth page.
Nearest schools
| School | Phase | Ages | Distance | Inspection |
|---|---|---|---|---|
| ARK John Archer Primary Academy | Primary | 3–11 | 470 m (0.3 miles) | Good (Jan 2023, overall grade under the previous framework) |
| Falconbrook Primary School | Primary | 2–11 | 470 m (0.3 miles) | Good (Feb 2020, overall grade under the previous framework) |
| St Faith's CofE Primary School Church of England | Primary | 3–11 | 840 m (0.5 miles) | No published inspection |
| Sacred Heart Catholic Primary School, Battersea Roman Catholic | Primary | 3–11 | 950 m (0.6 miles) | Good (Jun 2023, overall grade under the previous framework) |
| Langford Primary School | Primary | 3–11 | 1.1 km (0.7 miles) | No published inspection |
| Saint John Bosco College Roman Catholic | Secondary | 11–18 | 1.2 km (0.7 miles) | No published inspection |
| Somerset Nursery School and Children's Centre | Nursery | 2–5 | 1.2 km (0.8 miles) | No published inspection |
| Ark Bolingbroke Academy | Secondary | 11–18 | 1.2 km (0.8 miles) | No overall grade (Sep 2024, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding |
| The Hurlingham Academy | Secondary | 11–16 | 1.3 km (0.8 miles) | Outstanding (Mar 2024, overall grade under the previous framework) |
| Anglo Portuguese School of London | Primary | 4–11 | 1.3 km (0.8 miles) | Good (Mar 2023, overall grade under the previous framework) |
| Belleville Primary School | Primary | 3–11 | 1.4 km (0.9 miles) | Outstanding (Mar 2022, overall grade under the previous framework) |
| Allfarthing Primary School | Primary | 3–11 | 1.4 km (0.9 miles) | No published inspection |
Food hygiene ratings nearby
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| Anchor Battersea SW11 2AT | Pub/bar/nightclub | 30 m | 5 Very good | 29 Jan 2025 |
| Travelodge SW11 3SA | Hotel/bed & breakfast/guest house | 120 m | Exempt | |
| Amaro Dolce SW11 3SJ | Other catering premises | 140 m | 2 Improvement necessary | 1 Nov 2025 |
| Elms Coffee Shop SW11 3SJ | Restaurant/Cafe/Canteen | 160 m | 5 Very good | 13 Sep 2025 |
| Planet Food Supply Ltd SW11 3SJ | Retailers - other | 160 m | 5 Very good | 19 Sep 2023 |
| Chicken Valley/Chicken Corner/Sizzler Chicken SW11 3SJ | Takeaway/sandwich shop | 170 m | 4 Good | 1 Sep 2026 |
| Pizza Max Battersea SW11 3SJ | Takeaway/sandwich shop | 170 m | 5 Very good | 22 Sep 2026 |
| BUR & GUR - Battersea SW11 3SJ | Restaurant/Cafe/Canteen | 170 m | 5 Very good | 12 Aug 2026 |
| chickevalley SW11 3SJ | Restaurant/Cafe/Canteen | 170 m | Awaiting inspection | |
| Khaneja Superstore SW11 2AR | Retailers - other | 170 m | 1 Major improvement necessary | 6 Jan 2026 |
| Jimmy Garcia Catering SW11 3SX | Restaurant/Cafe/Canteen | 180 m | 5 Very good | 28 Apr 2026 |
| new phoenix SW11 3SJ | Takeaway/sandwich shop | 180 m | 2 Improvement necessary | 28 Jul 2026 |
| Co-Operative SW11 3SE | Retailers - supermarkets/hypermarkets | 180 m | 5 Very good | 19 Dec 2023 |
| Banana Moon Battersea SW11 2EZ | Hospitals/Childcare/Caring Premises | 200 m | 5 Very good | 29 Jul 2025 |
| Gym On Cafe SW11 3SE | Restaurant/Cafe/Canteen | 200 m | 5 Very good | 11 Sep 2024 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 113 |
| Anti-social behaviour | 105 |
| Vehicle crime | 53 |
| Burglary | 33 |
| Other theft | 29 |
| Shoplifting | 26 |
| Public order | 19 |
| Drugs | 18 |
| Criminal damage and arson | 17 |
| Bicycle theft | 11 |
| Robbery | 7 |
| Other crime | 7 |
| Theft from the person | 7 |
| Possession of weapons | 3 |
Most of these are attached to: On or near Carmichael Close (38); On or near Supermarket (36); On or near Hibbert Street (35); On or near Fowler Close (34); On or near York Road (26).
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 31 | 40 |
| Children under 15 | 18% | 17% |
| Aged 65 and over | 9% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 23% | 61% |
| Owned outright | 10% | 33% |
| Shared ownership | under 1% | 1% |
| Social rented | 45% | 17% |
| Private rented | 31% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 63% | 57% |
| Unemployment (of those working or looking for work) | 10% | 6% |
| Retired (of adults) | 8% | 22% |
| Long-term sick or disabled (of adults) | 4% | 4% |
| Work mainly from home (of those in work) | 36% | 32% |
| Travel to work by car or van | 12% | 48% |
| By train, Underground, metro or tram | 15% | 4% |
| By any public transport, including bus | 35% | 8% |
| On foot or by bicycle | 15% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 86% | 65% |
| Work 30 km (19 miles) or more away | 4% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 42% | 34% |
| No qualifications | 18% | 18% |
| Apprenticeship as highest qualification | 2% | 5% |
| Main language English (aged 3 and over) | 73% | 91% |
| Cannot speak English well or at all | 5% | 2% |
Deprivation
The 2 neighbourhoods around this street are in deciles 3 to 5 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.
What has changed
- Energy certificates New energy certificate: band C, flat (lodged 27 October 2026) found 2 November 2026
Postcodes on this street
- SW11 2BA: 60 addresses of 63 in the postcode
- SW11 2AT: 1 address of 39 in the postcode
- SW11 2AY: 1 address of 46 in the postcode
Nearby streets
Holgate Avenue · Wallis Close · Hope Street · Jansen Walk · Hibbert Street · Gartons Way · Maysoule Road · Holliday Square · Great Chart Street · Fowler Close · Chatfield Road · Kennet Close
All the streets in SW11 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.