Maple Grove London, Brent

48 addresses across 5 postcodes (NW9), about 450 m (0.3 miles) long, classed as a local road. USRN 20200749.

  • Sales: 26 recorded sales since 1995; in 2023 the median was £522,500 across 1 sale.
  • Energy: 14 homes have an energy certificate (C: 5, D: 8, E: 1).
  • Flood: 2 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 Brent costs £2,235 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is Hendon, about 1.9 km (1.2 miles) away in a straight line.
  • Green space: The nearest park or garden, Fryent Country Park, is about 190 m away.
  • Air: Background air pollution in 2024 was 16.1 µg/m³ of nitrogen dioxide and 8.7 of PM2.5, within UK legal limits.
  • Height: Its addresses are 56 to 62 m above sea level.
  • Noise: 2 of its 48 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Church Lane Surgery, about 220 m away, with 9 practices within 1.6 km (1 mile).
  • People: About 880 people lived in the census areas around it in 2021; 61% of households owned their home and 36% of adults held a degree or other higher qualification.
  • Crime: 197 crimes were recorded within 250 m between September 2025 and August 2026, most often shoplifting.

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
20231£522,500£522,500£522,500
20201£495,000£495,000£495,000
20172£442,500£400,000£485,000
20121£307,000£307,000£307,000
20111£282,500£282,500£282,500
20091£247,500£247,500£247,500
20073£299,950£250,000£310,000
20061£279,950£279,950£279,950
20053£250,000£249,950£250,000
20032£225,000£225,000£225,000
20021£187,500£187,500£187,500
20001£129,950£129,950£129,950
Most recent sales (26)
DateAddressTypePriceNotes
30 Nov 20234 NW9 8QYTerraced£522,500
27 Jul 202018 NW9 8QYSemi-detached£495,000
29 Nov 201916 NW9 8QYSemi-detached£500,000Not a standard sale (repossession, buy-to-let or transfer).
18 Jun 201827 NW9 8RDSemi-detached£540,000Not a standard sale (repossession, buy-to-let or transfer).
8 Dec 201729 NW9 8RASemi-detached£485,000
14 Mar 201743 NW9 8RASemi-detached£400,000
4 Apr 201416 NW9 8QYSemi-detached£330,000Not a standard sale (repossession, buy-to-let or transfer).
16 Nov 20127 NW9 8RDSemi-detached£307,000
23 Aug 201111 NW9 8RDSemi-detached£282,500
14 Sep 200933 NW9 8RASemi-detached£247,500
21 Sep 200724 NW9 8QYSemi-detached£299,950
29 Aug 200710 NW9 8QYSemi-detached£310,000
14 May 200717 NW9 8RDTerraced£250,000
2 Nov 200620 NW9 8QYSemi-detached£279,950
29 Jul 200521 NW9 8RDSemi-detached£250,000
1 Apr 200517 NW9 8RDTerraced£250,000
16 Feb 20056 NW9 8QYSemi-detached£249,950
10 Nov 200328 NW9 8QYSemi-detached£225,000
14 Feb 200323 NW9 8RDSemi-detached£225,000
19 Apr 200217 NW9 8RDTerraced£187,500
7 Jan 200021 NW9 8RDSemi-detached£129,950
19 Sep 199737 NW9 8RAFlat or maisonette£89,950
6 Mar 19964 NW9 8QYTerraced£68,000
31 Oct 19958 NW9 8QYSemi-detached£78,000
12 May 199524 NW9 8QYSemi-detached£67,000
6 Mar 199523 NW9 8RDSemi-detached£74,000

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 September 2012 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

14 homes with a current certificate; median floor area 88 m². Most common: House, semi-detached (12); House, end-terrace (2). Built: 1950-1966 (9); 1930-1949 (3); 1967-1975 (1). Tenure at assessment: rented (private) (6); owner-occupied (5); rented (social) (1).

Each home's certificates and sales (6 addresses)

Council tax

What each band costs in Brent in 2026-27: Band D £2,235 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£1,490£1,739£1,987£2,235£2,732£3,229£3,725£4,471

Homes by band in the neighbourhood around this street: most are in band C (43% of about 650 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10), for the neighbourhood (census area of about 700 homes) 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: 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): Article 4 for HMOs.
  • 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

Planned, as of 31 October 2026

  • 15 February 2027 to 19 February 2027: AFFINITY WATER - C, Utility repair and maintenance works, give and take, on the footway, carriageway, verge (standard works)

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: in this street's postcodes, 2 addresses are in areas at high risk, 0 at medium risk and 4 at low risk. Each address counts once, at the higher of its rivers-and-sea and surface-water risk.

Rivers and the sea alone: no home is in an area at risk.

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: no postcode centre on this street is in flood zone 2 or 3.

PostcodePlanning zoneAddresses at high / medium / low riskGroundwater
NW9 8QYnot in 2 or 3 0 / 0 / 0 unlikely
NW9 8RDnot in 2 or 3 2 / 0 / 2 unlikely
NW9 8RAnot in 2 or 3 0 / 0 / 0 unlikely
NW9 8RBnot in 2 or 3 0 / 0 / 2 unlikely
NW9 8QXnot in 2 or 3 0 / 0 / 0 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 48 addresses are between 56 m and 62 m above sea level (58 m on average); the ground rises about 6 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
NW9 8QX100%100%100%0%
NW9 8QY100%100%100%0%
NW9 8RA100%100%100%0%
NW9 8RB100%100%100%0%
NW9 8RD100%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 stationsHendon 1.0 million journeys in 2024–251.9 km (1.2 miles)
Wembley Stadium 885,000 journeys in 2024–252.7 km (1.7 miles)
Brent Cross West 675,000 journeys in 2024–252.9 km (1.8 miles)
Underground, metro or tramKingsbury Underground Station1.4 km (0.9 miles)
Wembley Park Underground Station1.6 km (1 mile)
Bus stops5 stops within 400 m (0.2 miles), 9 within 800 m (0.5 miles); nearest Queensbury Road Kingsbury190 m
Bus or coach stationBrunswick Road / Sandall Road Ealing5.5 km (3.4 miles)
Ferry terminalLittle Venice Waterbus Stop8.2 km (5.1 miles)
Car parks1 within 800 m (0.5 miles); nearest Parking Wembley Hgv340 m
EV charging points11 within 1.6 km (1 mile); nearest ubitricity400 m (0.2 miles)
Airport with scheduled flightsLondon Heathrow Airport LHR17.8 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 surgeries9 practices within 1.6 km (1 mile); nearest Church Lane Surgery220 m
Pharmacies9 pharmacies within 1.6 km (1 mile); nearest Leigh Pharmacy220 m
NHS dentists4 practices within 1.6 km (1 mile); nearest Rose Garden Dental Practice220 m
HospitalUCLH Outreach: Bmi The Garden Hospital3.5 km (2.2 miles)
Police stationChalkhill Police Station1.2 km (0.7 miles)
Cash machines1 machines within 800 m (0.5 miles); nearest ATM210 m

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 garden3 within 800 m (0.5 miles); nearest Fryent Country Park 105 ha190 m
Play area2 within 800 m (0.5 miles); nearest Unnamed 1,350 m²480 m (0.3 miles)
Playing field1 within 800 m (0.5 miles); nearest Church Lane Recreation Ground 6.6 ha440 m (0.3 miles)
Allotments2 within 800 m (0.5 miles); nearest Unnamed 1.1 ha460 m (0.3 miles)

Within 800 m (0.5 miles): 3 parks and gardens, 120 hectares in all.

Landmarks

The nearest historic landmark is New Parish Church of St Andrew, a listed building (Grade II*), 820 m (0.5 miles) south. 16 listed buildings are within 1 km (0.6 miles), 1 of them Grade I and 1 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
New Parish Church of St AndrewListed building, Grade II*820 m (0.5 miles) south
Old Parish Church of St AndrewListed building, Grade I870 m (0.5 miles) south
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Barn HillHill1 km (0.7 miles) west
Welsh Harp ReservoirLake or reservoir1.4 km (0.9 miles) east
Hendon GroveWood2.7 km (1.7 miles) north-east
The DecoyLake or reservoir3.9 km (2.4 miles) east
Northwick ParkWood4 km (2.5 miles) west
The SpinneyWood4.4 km (2.7 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)16.14010
Fine particles (PM2.5)8.7205
Particles (PM10)13.54015

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 and rail 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 trafficRailways
55 to 5920
Under 554648

2 of the street's 48 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 Brent: see them on the Brent page.

Nearest schools

Source: Get Information About Schools (Department for Education), 3 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
Fryent Primary SchoolPrimary3–11250 m No overall grade (Feb 2025, graded inspection without an overall judgement): Quality of education: Requires improvement; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good
St Robert Southwell Catholic Primary School Roman CatholicPrimary3–11770 m (0.5 miles) No published inspection
Kingsbury Green Primary SchoolPrimary3–111 km (0.6 miles) No published inspection
Oliver Goldsmith Primary SchoolPrimary3–111 km (0.6 miles) Good (Nov 2023, overall grade under the previous framework)
Sinai Jewish Primary SchoolPrimary3–111.3 km (0.8 miles) No overall grade (Nov 2024, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding
JFS JewishSecondary11–181.3 km (0.8 miles) Report card (Apr 2026): Curriculum and teaching: Exceptional; Achievement: Exceptional; Attendance and behaviour: Strong standard; Personal development and wellbeing: Exceptional; Inclusion: Strong standard; Leadership and governance: Exceptional; Post-16 provision: Exceptional; Safeguarding standards: Met
The Hyde SchoolPrimary3–111.4 km (0.9 miles) No overall grade (Mar 2025, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding
Ark AcademyAll-through3–181.5 km (0.9 miles) Report card (Apr 2026): Curriculum and teaching: Strong standard; Achievement: Strong standard; Attendance and behaviour: Strong standard; Personal development and wellbeing: Exceptional; Inclusion: Strong standard; Leadership and governance: Strong standard; Early years: Expected standard; Post-16 provision: Strong standard; Safeguarding standards: Met
Chalkhill Primary SchoolPrimary3–111.5 km (0.9 miles) Good (Feb 2023, overall grade under the previous framework)
Wykeham Primary SchoolPrimary3–111.5 km (1 mile) No overall grade (Nov 2024, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good
Michaela Community SchoolSecondary11–191.7 km (1 mile) No published inspection
St Margaret Clitherow RC Primary School Roman CatholicPrimary3–111.7 km (1.1 miles) No published inspection

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
Tareen Food Centre NW9 8LURetailers - supermarkets/hypermarkets220 m5 Very good29 Aug 2022
Freshly Grilled Peri Peri NW9 8LUTakeaway/sandwich shop220 m3 Generally satisfactory29 Aug 2026
Krish News & Grocery NW9 8LURetailers - other220 m5 Very good18 Feb 2026
Fish N Grill NW9 8LUTakeaway/sandwich shop220 m4 Good1 Nov 2025
Pizza Ariano's/ Selekt Chicken NW9 8LURestaurant/Cafe/Canteen220 m5 Very good19 Aug 2025
Leigh Pharmacy NW9 8LURetailers - other220 mExempt
Co-operative Supermarket NW9 8JSRetailers - supermarkets/hypermarkets240 m5 Very good29 Aug 2026
Well Pharmacy NW9 8JSRetailers - other240 mExempt
The Wishing Well (Breezy Wind Ltd) NW9 8JSPub/bar/nightclub240 m5 Very good16 Aug 2024
Church Lane Family Wellbeing Centre- Kitchen and FoodBank NW9 8JDRestaurant/Cafe/Canteen240 m5 Very good7 Jul 2025
Premier / Party Shop NW9 8SLRetailers - supermarkets/hypermarkets250 m4 Good29 Jun 2024
Cafe Florya NW9 8SLRestaurant/Cafe/Canteen250 m5 Very good1 Jun 2026
The Pied Piper NW9 8SLRetailers - other250 m5 Very good14 Nov 2024
Bella Pizza NW9 8JUTakeaway/sandwich shop290 m5 Very good17 Jan 2025
Kenton Halal Meat NW9 8JURetailers - other290 m3 Generally satisfactory15 Jun 2024

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.

197 recorded crimes by category
CategoryCrimes
Shoplifting59
Violence and sexual offences42
Anti-social behaviour21
Vehicle crime16
Burglary13
Public order10
Other theft10
Theft from the person8
Robbery7
Criminal damage and arson5
Possession of weapons3
Other crime2
Drugs1

Most of these are attached to: On or near Supermarket (77); On or near Church Lane (27); On or near Conference/Exhibition Centre (16); On or near Merley Court (16); On or near Alington Crescent (14).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the 2 Output Areas (small census areas of about 125 households each) that this street's postcodes are in: 884 residents in 265 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 age3640
Children under 1517%17%
Aged 65 and over13%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)61%61%
Owned outright31%33%
Shared ownership0%1%
Social rented15%17%
Private rented25%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work60%57%
Unemployment (of those working or looking for work)8%6%
Retired (of adults)13%22%
Long-term sick or disabled (of adults)3%4%
Work mainly from home (of those in work)24%32%
Travel to work by car or van37%48%
By train, Underground, metro or tram20%4%
By any public transport, including bus32%8%
On foot or by bicycle4%10%
Work within 10 km (6 miles) of home (of those who travel to work)74%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)36%34%
No qualifications20%18%
Apprenticeship as highest qualification4%5%
Main language English (aged 3 and over)62%91%
Cannot speak English well or at all7%2%

Deprivation

The neighbourhood around this street is in decile 3 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

  • Roadworks Street works permit: AFFINITY WATER - C: Utility repair and maintenance works, 15 February 2027 to 19 February 2027 (give and take) found 3 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.

Nearby streets

Bush Grove · Sycamore Grove · Mallard Way · Holly Grove · Alington Crescent · Laburnum Grove · Merley Court · Lavender Avenue · Reeves Avenue · Meadowbank Road · Queensbury Road · Holden Avenue

All the streets in NW9 and across Brent.

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.