The Furrows South Harefield, Hillingdon
35 addresses across 2 postcodes (UB9), about 170 m long, classed as a local road. USRN 21401954.
- Sales: 35 recorded sales since 1995; in 2026 the median was £500,000 across 1 sale.
- Prices and rents: A typical home in Hillingdon cost £482,137 in August 2026 (+0% on a year); private rents averaged £1,581 a month.
- Energy: 24 homes have an energy certificate (C: 10, D: 9, E: 5).
- Flood: 3 addresses on its postcodes are in areas at high or medium risk of flooding from rivers, the sea or surface water.
- Recorded floods: No recorded flood covers the centre of any of its postcodes.
- Landfill: 2 historic landfill sites within 500 m (0.3 miles) of its postcodes; the nearest, Harefield Marina, is 160 m away.
- Radon: Up to 1 to 3% of homes in the 1 km squares around it are estimated to be at or above the radon Action Level.
- Traffic: The busiest counted road within 500 m (0.3 miles), the Minor road, carries 472 motor vehicles a day on average (2025).
- Council tax: Most homes around it are in council tax band D; Band D in Hillingdon costs £2,045 a year in 2026-27.
- Broadband: Gigabit broadband is available to 100% of premises.
- Transport: The nearest railway station is Denham, about 1.6 km (1 mile) away in a straight line.
- Green space: The nearest park or garden is about 1.5 km (0.9 miles) away.
- Air: Background air pollution in 2024 was 10.6 µg/m³ of nitrogen dioxide and 7.4 of PM2.5, within UK legal limits.
- Height: Its addresses are 47 to 51 m above sea level.
- Noise: 1 of its 35 addresses is modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Denham Medical Centre, about 1.6 km (1 mile) away.
- People: About 350 people lived in the census areas around it in 2021; 67% of households owned their home and 25% of adults held a degree or other higher qualification.
- Crime: 48 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: 4 collisions in which someone was hurt were reported on and around it in 2021 to 2025, 1 of them fatal or serious; 2 involved a pedestrian.
£9.99 The Street Dossier Full Report for a home on The Furrows: its own records, questions to ask the seller and everything on this page, in one PDF. Choose the home
House sales on this street
| Year | Sales | Median price | Lowest | Highest |
|---|---|---|---|---|
| 2026 | 1 | £500,000 | £500,000 | £500,000 |
| 2025 | 1 | £540,000 | £540,000 | £540,000 |
| 2024 | 1 | £530,000 | £530,000 | £530,000 |
| 2021 | 4 | £509,000 | £450,000 | £533,000 |
| 2020 | 3 | £500,000 | £475,000 | £515,000 |
| 2019 | 1 | £465,000 | £465,000 | £465,000 |
| 2018 | 1 | £465,000 | £465,000 | £465,000 |
| 2017 | 3 | £455,000 | £410,000 | £475,000 |
| 2016 | 1 | £450,000 | £450,000 | £450,000 |
| 2015 | 3 | £399,950 | £185,000 | £470,000 |
| 2014 | 3 | £370,000 | £365,000 | £375,000 |
| 2013 | 1 | £306,000 | £306,000 | £306,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 7 Sep 2015 | 3 UB9 6AT | Semi-detached | £470,000 | |
| 25 Nov 2020 | 4 UB9 6AT | Semi-detached | £500,000 | |
| 3 Aug 2018 | 4 UB9 6AT | Semi-detached | £465,000 | |
| 3 Aug 2007 | 4 UB9 6AT | Semi-detached | £315,000 | |
| 26 Aug 1998 | 4 UB9 6AT | Semi-detached | £115,000 | |
| 7 Dec 2020 | 5 UB9 6AT | Semi-detached | £515,000 | |
| 21 Jul 2017 | 5 UB9 6AT | Semi-detached | £475,000 | |
| 16 Aug 2006 | 6 UB9 6AT | Semi-detached | £310,000 | |
| 14 Jan 2000 | 6 UB9 6AT | Semi-detached | £177,000 | |
| 20 Nov 2015 | 7 UB9 6AT | Semi-detached | £185,000 | |
| 9 Aug 2019 | 9 UB9 6AT | Semi-detached | £465,000 | |
| 10 Apr 2017 | 9 UB9 6AT | Semi-detached | £455,000 | |
| 28 Aug 2020 | 10 UB9 6AT | Semi-detached | £475,000 | |
| 15 Oct 2014 | 13 UB9 6AT | Semi-detached | £370,000 | |
| 11 Nov 2014 | 14 UB9 6AT | Semi-detached | £375,000 | |
| 20 Mar 2026 | 15 UB9 6AT | Semi-detached | £500,000 | |
| 13 Mar 2017 | 15 UB9 6AT | Semi-detached | £410,000 | |
| 24 Apr 2015 | 16 UB9 6AT | Semi-detached | £399,950 | |
| 8 Mar 2013 | 16 UB9 6AT | Semi-detached | £306,000 | |
| 26 Mar 2021 | 18 UB9 6AT | Semi-detached | £503,000 | |
| 12 Feb 2025 | 19 UB9 6AT | Semi-detached | £540,000 | |
| 21 Oct 2001 | 20 UB9 6AT | Semi-detached | £183,500 | |
| 31 Oct 1997 | 20 UB9 6AT | Semi-detached | £121,000 | |
| 5 Jan 2016 | 21 UB9 6AT | Semi-detached | £450,000 | |
| 24 Sep 2009 | 21 UB9 6AT | Semi-detached | £247,000 | |
| 27 Apr 2012 | 24 UB9 6AT | Semi-detached | £277,500 | |
| 23 Aug 2024 | 25 UB9 6AT | Semi-detached | £530,000 | |
| 30 Jun 2021 | 27 UB9 6AT | Semi-detached | £533,000 | |
| 20 May 2014 | 27 UB9 6AT | Semi-detached | £365,000 | |
| 13 Dec 2010 | 28 UB9 6AT | Semi-detached | £270,000 | |
| 19 Feb 2021 | 30 UB9 6AT | Semi-detached | £515,000 | |
| 12 Aug 2011 | 30 UB9 6AT | Semi-detached | £340,000 | |
| 17 Mar 2021 | 34 UB9 6AT | Semi-detached | £450,000 | |
| 8 Jun 2001 | 38 UB9 6AT | Semi-detached | £178,000 | |
| 28 Nov 2007 | 40 UB9 6AT | Semi-detached | £337,000 |
House prices and rents in Hillingdon
A typical home in Hillingdon cost £482,137 in August 2026, the same as a year before. That is 11% more than five years earlier and 15% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £962,371 |
| Semi-detached | £597,163 |
| Terraced | £469,539 |
| Flat or maisonette | £291,852 |
| Bought by a first-time buyer | £409,715 |
Private renters in Hillingdon paid £1,581 a month on average in September 2026, 3.4% more than a year before. That is 32% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £1,260 |
| Two bedrooms | £1,598 |
| Three bedrooms | £1,929 |
| Four or more bedrooms | £2,654 |
Energy performance certificates
24 homes with a current certificate; median floor area 89 m². Most common: House, semi-detached (24). Built: 1950-1966 (17); 1930-1949 (6); 1967-1975 (1). Tenure at assessment: owner-occupied (20); rented (social) (1).
Each home's certificates and sales (24 addresses)
- 3, The Furrows, Harefield
- 4, The Furrows, Harefield
- 5, The Furrows, Harefield
- 7 The Furrows, Harefield
- 8, The Furrows, Harefield
- 9, The Furrows, Harefield
- 10, The Furrows, Harefield
- 12 THE FURROWS, HAREFIELD
- 13, The Furrows, Harefield
- 14, The Furrows, Harefield
- 15, The Furrows, Harefield
- 16, The Furrows, Harefield
- 18, The Furrows, Harefield
- 19 The Furrows, Harefield
- 21, The Furrows, Harefield
- 24, The Furrows, Harefield
- 25 The Furrows, Harefield
- 26, The Furrows, Harefield
- 27, The Furrows, Harefield
- 28, The Furrows, Harefield
- 30, The Furrows, Harefield
- 32, The Furrows, Harefield
- 34 THE FURROWS, HAREFIELD
- 36, The Furrows, Harefield
Gas and electricity use
Homes with gas used 13,558 kWh of it on average in 2024, about the same as the district, and 4,512 kWh of electricity, 15% more than the district's 3,909 kWh. There are gas meters for about 100% of the homes.
| Postcode | Electricity meters | Typical electricity | Gas meters | Typical gas |
|---|---|---|---|---|
| UB9 6AT | 34 | 3,126 kWh | 34 | 12,360 kWh |
| UB9 6JS | 17 | 4,363 kWh | 18 | 16,316 kWh |
These are all the homes on each postcode, whatever their size and however many live in them, so they show the kind of homes and heating here rather than what any one home uses. The typical figure is the median: half the homes used less. The district is UB9.
Council tax
What each band costs in Hillingdon in 2026-27: Band D £2,045 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,364 | £1,591 | £1,818 | £2,045 | £2,500 | £2,955 | £3,409 | £4,091 |
Homes by band in the neighbourhood around this street: most are in band D (59% of about 660 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): Residential extensions.
- Tree preservation orders: none recorded, though not every council has published theirs.
- Green belt: no.
Energy projects nearby
No wind turbine or waste plant within 5 km (3.1 miles), and no solar farm, battery site or other project of 1 MW or more within 2 km (1.2 miles), of the street's postcodes, operating or planned.
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 3 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.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| UB9 6AT | not in 2 or 3 | 0 / 0 / 2 | unlikely |
| UB9 6JS | not in 2 or 3 | 0 / 3 / 1 | unlikely |
Recorded floods
No recorded flood covers the centre of any of this street's postcodes.
Recorded floods are where floodwater was seen or surveyed after a flood. Many floods were never mapped, an outline over a postcode's centre does not mean every home in it flooded, and homes outside one may have. Ask the seller whether the home itself has flooded.
Coastal erosion
No projected coastal erosion zone is within 1 km (0.6 miles) of the street's postcodes.
Storm overflows
No storm overflow outlet is within 1 km (0.6 miles) of the street's postcodes.
Coal mining
No postcode centre on the street is in a coalfield: the Mining Remediation Authority records no coal mining risk here.
Radon
The highest radon potential in the 1 km squares around the street's postcodes is 1 to 3%: up to that share of homes there is estimated to be at or above the Action Level of 200 becquerels per cubic metre. At least part of that area is a radon Affected Area, where 1% or more of homes are.
Radon is a natural radioactive gas from the ground that can build up indoors; long exposure raises the risk of lung cancer. A three-month test with two small detectors is the only way to know a home's level, and a high level can usually be brought down with a sump or better ventilation. UKHSA sells a radon report for a single address from its detailed map at ukradon.org.
Historic landfill
2 historic landfill sites are within 500 m (0.3 miles) of the street's postcodes, the nearest 160 m away.
| Site | Waste went in | Waste | Distance |
|---|---|---|---|
| Harefield Marina South Harefield, Hillingdon, London | from 1947 | Inert, industrial, commercial, household | 160 m |
| Park Lodge Farm Pinewood Road, Iver Heath | 1944 to 1974 | Commercial, household | 180 m |
Closed tips can give off gas (methane and carbon dioxide) and leak into the ground for years. An environmental search, which conveyancers usually order, looks at landfill and contaminated land around the home; the council keeps a register of land it has found to be contaminated.
Height above sea level
The street's 35 addresses are between 47 m and 51 m above sea level (48 m on average).
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| UB9 6AT | 100% | 100% | 100% | 0% |
| UB9 6JS | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Denham 212,000 journeys in 2024–25 | 1.6 km (1 mile) |
| Denham Golf Club 34,000 journeys in 2024–25 | 2.8 km (1.7 miles) | |
| West Ruislip 136,000 journeys in 2024–25 | 3.6 km (2.2 miles) | |
| Bus stops | 5 stops within 400 m (0.2 miles), 8 within 800 m (0.5 miles); nearest The Furrows Harefield | 90 m |
| Bus or coach station | Hillingdon Underground Station North Hillingdon | 4.4 km (2.7 miles) |
| Car parks | Apcoa | 1.6 km (1 mile) |
| EV charging points | Apcoa Charging Station | 3.3 km (2 miles) |
| Airport with scheduled flights | London Heathrow Airport LHR | 13.2 km (8.2 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | Denham Medical Centre Good Jul 2022 | 1.6 km (1 mile) |
| Pharmacies | Boots | 1.7 km (1 mile) |
| NHS dentists | Dentistry For You | 1.7 km (1 mile) |
| Hospital | Harefield Hospital Good Feb 2019 | 2 km (1.3 miles) |
| Care homes | 1 home within 1.6 km (1 mile); nearest Cedar House Good Apr 2023 | 1.6 km (1 mile) |
| Police station | Gerrards Cross Police Station | 4 km (2.5 miles) |
| Cash machines | The Cooperative Food Denham North Orbital Road, Denham Cashzone | 1.5 km (0.9 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | Unnamed 7,220 m² | 1.5 km (0.9 miles) |
| Play area | Unnamed 120 m² | 1.2 km (0.8 miles) |
| Playing field | 1 within 800 m (0.5 miles); nearest Unnamed 1.8 ha | 280 m |
| Allotments | 1 within 800 m (0.5 miles); nearest Church Hill Allotments 1.1 ha | 550 m (0.3 miles) |
Landmarks
The nearest historic landmark is Harefield Place, a registered park or garden (Grade II), 680 m (0.4 miles) north. 7 listed buildings are within 1 km (0.6 miles), 1 of them Grade I.
| Name | What it is | From the middle of the street |
|---|---|---|
| Harefield Place | Registered park or garden, Grade II | 680 m (0.4 miles) north |
| Church of St Mary | Listed building, Grade I | 760 m (0.5 miles) north |
| Mound with ditch and outer bank 200ft (60m) S of Savay Farm | Scheduled monument | 1.1 km (0.7 miles) south-west |
| Broadwater Park | Registered park or garden, Grade II | 1.2 km (0.8 miles) west |
| Name | What it is | From the middle of the street |
|---|---|---|
| Broad Water | Lake or reservoir | 550 m (0.3 miles) north-west |
| The Alders | Wood | 860 m (0.5 miles) south |
| Dell | Valley | 1.8 km (1.1 miles) north-east |
| Duck's Hill | Hill | 2.7 km (1.7 miles) north-east |
| Bradbury's Island | Island | 2.8 km (1.7 miles) south-west |
| Ickenham Marsh | Wetland | 4.9 km (3.1 miles) south-east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 10.6 | 40 | 10 |
| Fine particles (PM2.5) | 7.4 | 20 | 5 |
| Particles (PM10) | 11.8 | 40 | 15 |
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
| Level | Road traffic | Railways |
|---|---|---|
| 65 to 69 | 1 | 0 |
| Under 55 | 34 | 35 |
1 of the street's 35 addresses is modelled at 55 dB or more from road traffic, above the WHO guidelines.
Climate, daylight and earthquakes
Monthly temperatures and rainfall, sunrise and sunset through the year, and earthquakes recorded nearby since 1970 are much the same across the area, so they are worked out once for Hillingdon: see them on the Hillingdon page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Harefield Infant and Junior School | Primary | 3–11 | 1.7 km (1.1 miles) | Good (Oct 2023, overall grade under the previous framework) | 67% at the expected standard in reading, writing and maths, 4% at the higher standard (2025; 64% in 2024 and 54% in 2023) |
| Denham Green E-ACT Primary Academy | Primary | 4–11 | 1.8 km (1.1 miles) | Good (Oct 2022, overall grade under the previous framework) | 73% at the expected standard in reading, writing and maths, 13% at the higher standard (2025; 72% in 2024 and 66% in 2023) |
Exam results are from the Department for Education's school performance tables (Explore Education Statistics, Open Government Licence), for all pupils at each school. The middle school in England had 63% at the expected standard at the end of primary school (2025), Attainment 8 of 46.0 at GCSE (2026) and an A level average of C+ (2025). Attainment 8 adds up a pupil's grades in eight GCSEs, with English and maths counted twice (90 is the most), averaged over the school's pupils. Progress 8 compares pupils with others who had the same results at the end of primary school; it is not published for GCSEs in 2025 and 2026, as those pupils sat no primary tests during the pandemic. Small year groups swing from year to year, and figures for very small ones are withheld.
Nurseries and childcare
No nursery, pre-school or out-of-school club on Ofsted's register is within 1.5 km (0.9 miles) of the middle of the street.
Ofsted also registers 169 childminders and 52 home childcarers (nannies) in Hillingdon. It does not publish their addresses, so they cannot be shown here; the council's family information service lists those taking children.
Food hygiene ratings nearby
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| Best-One UB9 6JR | Retailers - other | 90 m | Exempt | |
| Londis UB9 6PE | Retailers - other | 140 m | 2 Improvement necessary | 5 Mar 2026 |
| The River Garden UB9 6PE | Pub/bar/nightclub | 140 m | 5 Very good | 10 Jun 2026 |
| Harris fish@chips / dragonwok UB9 6PE | Takeaway/sandwich shop | 140 m | Awaiting inspection | |
| The Hubb UB9 6NS | Takeaway/sandwich shop | 330 m | 3 Generally satisfactory | 27 Feb 2026 |
| The Piano Boat | Mobile caterer | 400 m (0.2 miles) | 5 Very good | 1 Sep 2025 |
| Harefield Community Accociation UB9 6AP | Pub/bar/nightclub | 430 m (0.3 miles) | 5 Very good | 16 May 2019 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 19 |
| Anti-social behaviour | 17 |
| Vehicle crime | 4 |
| Other theft | 2 |
| Criminal damage and arson | 2 |
| Robbery | 2 |
| Public order | 1 |
| Shoplifting | 1 |
Most of these are attached to: On or near The Furrows (26); On or near Dellside (12); On or near Truesdale Drive (7); On or near Hillside (3).
Road safety
4 collisions in which someone was hurt were reported on and around the street in 2021 to 2025: 0 fatal, 1 serious and 3 slight, in which 1 person was seriously hurt. 2 involved a pedestrian; 1 involved a child under 16. 25% happened in the dark. Most were on roads with a 30 mph limit.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| Date | Severity | Who was hurt | Road | Conditions |
|---|---|---|---|---|
| 17 Oct 2024 14:20 | Serious | 1 person: 1 pedestrian | Minor road, 30 mph | Daylight |
| 30 Jul 2024 17:10 | Slight | 2 people | Minor road, 30 mph | Daylight |
| 16 May 2023 17:20 | Slight | 1 person: 1 pedestrian, 1 child | Minor road, 30 mph | Daylight |
| 18 Sep 2022 19:50 | Slight | 2 people | Minor road, 30 mph | Dark, street lights on |
Only collisions in which someone was hurt and which the police were told about are here: damage-only collisions and near misses are not, and some injuries are never reported. Positions are recorded by the police, usually to within a few metres. Each year's figures are published the following September.
Traffic on nearby roads
The busiest counted road within 500 m (0.3 miles) is the Minor road, with 472 motor vehicles a day on average in 2025, 280 m from the street's postcodes.
| Road | Between | Vehicles a day | Lorries | Ten years before | Distance |
|---|---|---|---|---|---|
| Minor road | Not recorded | 472 counted 2025 | 0% | 280 m |
Each figure is the annual average daily flow: the motor vehicles passing the count point, both ways, on an average day of the year. A point is counted by hand on a weekday every few years and estimated from the trend on similar roads in between. Lorries are heavy goods vehicles, as a share of all motor vehicles.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 43 | 40 |
| Children under 15 | 14% | 17% |
| Aged 65 and over | 18% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 67% | 61% |
| Owned outright | 34% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 17% | 17% |
| Private rented | 16% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 62% | 57% |
| Unemployment (of those working or looking for work) | 6% | 6% |
| Retired (of adults) | 19% | 22% |
| Long-term sick or disabled (of adults) | 1% | 4% |
| Work mainly from home (of those in work) | 17% | 32% |
| Travel to work by car or van | 65% | 48% |
| By train, Underground, metro or tram | 4% | 4% |
| By any public transport, including bus | 11% | 8% |
| On foot or by bicycle | 6% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 68% | 65% |
| Work 30 km (19 miles) or more away | 0% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 25% | 34% |
| No qualifications | 23% | 18% |
| Apprenticeship as highest qualification | 7% | 5% |
| Main language English (aged 3 and over) | 92% | 91% |
| Cannot speak English well or at all | under 1% | 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.
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.
Postcodes on this street
Nearby streets
Hillside · Dellside · Truesdale Drive · Peerless Drive · Widewater Place
All the streets in UB9 and across Hillingdon.
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; road collisions count only those in which someone was hurt and the police were told.
- 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.