Raynton Close London, Harrow
15 addresses across 1 postcode (HA2), about 60 m long, classed as a local road. USRN 21202073.
- Sales: 13 recorded sales since 1995; in 2024 the median was £745,000 across 1 sale.
- Prices and rents: A typical home in Harrow cost £532,173 in August 2026 (-2.5% on a year); private rents averaged £1,781 a month.
- Energy: 6 homes have an energy certificate (C: 3, D: 1, E: 2).
- Flood: 1 address on its postcodes is 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.
- Storm overflows: 2 storm overflows within 1 km (0.6 miles) spilled 0 times (0 hours) in 2025.
- Council tax: Most homes around it are in council tax band D; Band D in Harrow costs £2,511 a year in 2026-27.
- Broadband: Gigabit broadband is available to 100% of premises.
- Transport: The nearest railway station is Northolt Park, about 2.4 km (1.5 miles) away in a straight line.
- Green space: The nearest park or garden, Roxbourne Park, is about 50 m away.
- Air: Background air pollution in 2024 was 13.4 µg/m³ of nitrogen dioxide and 8.2 of PM2.5, within UK legal limits.
- Height: Its addresses are 44 to 45 m above sea level.
- Noise: 2 of its 15 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is First Choice Medical Care, about 520 m (0.3 miles) away, with 10 practices within 1.6 km (1 mile).
- People: About 380 people lived in the census areas around it in 2021; 70% of households owned their home and 48% of adults held a degree or other higher qualification.
- Crime: 31 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: 1 collision in which someone was hurt was reported on and around it in 2021 to 2025; 1 involved a pedestrian.
£9.99 The Street Dossier Full Report for a home on Raynton Close: 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 |
|---|---|---|---|---|
| 2024 | 1 | £745,000 | £745,000 | £745,000 |
| 2016 | 1 | £524,000 | £524,000 | £524,000 |
| 2014 | 1 | £565,000 | £565,000 | £565,000 |
| 2005 | 1 | £282,500 | £282,500 | £282,500 |
| 2004 | 2 | £250,000 | £230,000 | £270,000 |
| 2002 | 2 | £199,500 | £186,000 | £213,000 |
| 1999 | 1 | £140,000 | £140,000 | £140,000 |
| 1998 | 3 | £140,500 | £130,000 | £142,500 |
| 1996 | 1 | £79,000 | £79,000 | £79,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 27 Aug 1999 | 1 HA2 9TD | Semi-detached | £140,000 | |
| 25 Jan 2002 | 5 HA2 9TD | Semi-detached | £186,000 | |
| 10 Oct 2014 | 7 HA2 9TD | Semi-detached | £565,000 | |
| 16 Oct 1998 | 7 HA2 9TD | Semi-detached | £130,000 | |
| 2 Jun 2004 | 9 HA2 9TD | Semi-detached | £270,000 | |
| 29 Apr 2002 | 9 HA2 9TD | Semi-detached | £213,000 | |
| 22 Aug 1996 | 9 HA2 9TD | Semi-detached | £79,000 | |
| 19 Aug 2005 | 15 HA2 9TD | Semi-detached | £282,500 | |
| 19 Nov 1998 | 15 HA2 9TD | Semi-detached | £140,500 | |
| 23 Aug 2024 | 17 HA2 9TD | Semi-detached | £745,000 | |
| 11 May 2016 | 23 HA2 9TD | Semi-detached | £524,000 | |
| 27 Apr 2004 | 27 HA2 9TD | Semi-detached | £230,000 | |
| 6 Mar 1998 | 29 HA2 9TD | Semi-detached | £142,500 |
House prices and rents in Harrow
A typical home in Harrow cost £532,173 in August 2026, 2.5% less than a year before. That is 6% more than five years earlier and 13% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £1,217,606 |
| Semi-detached | £672,566 |
| Terraced | £545,066 |
| Flat or maisonette | £319,799 |
| Bought by a first-time buyer | £437,780 |
Private renters in Harrow paid £1,781 a month on average in September 2026, 2.8% more than a year before. That is 31% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £1,395 |
| Two bedrooms | £1,718 |
| Three bedrooms | £2,069 |
| Four or more bedrooms | £2,795 |
Energy performance certificates
6 homes with a current certificate; median floor area 124 m². Most common: House, semi-detached (6). Built: 1930-1949 (6). Tenure at assessment: rented (private) (3); owner-occupied (3).
Each home's certificates and sales (6 addresses)
Gas and electricity use
Homes with gas used 21,671 kWh of it on average in 2024, 56% more than the district's 13,864 kWh, and 3,611 kWh of electricity, 9% more than the district's 3,300 kWh. There are gas meters for about 100% of the homes.
These are all the homes on the 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 HA2.
Council tax
What each band costs in Harrow in 2026-27: Band D £2,511 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,674 | £1,953 | £2,232 | £2,511 | £3,069 | £3,627 | £4,185 | £5,022 |
Homes by band in the neighbourhood around this street: most are in band D (51% of about 510 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)
- Rayners Lane/High Worple, Rayners Lane Station car park, not permissioned (510 m (0.3 miles))
- Alexandra Avenue, 465-473, adjacent Rayners Lane Station, not permissioned (620 m (0.4 miles))
- Imperial Drive, Talbot House, 204 - 226, Ground & First floor, Rayners La, permissioned (670 m (0.4 miles))
- Imperial Drive, Talbot House, 204 - 226, Lower Ground floor, Rayners Lane, permissioned (670 m (0.4 miles))
- Imperial Drive, Talbot House, 204 - 226, Ground & First floor, Rayners La, permissioned (670 m (0.4 miles))
- Imperial Drive, Talbot House, 204 - 226, Lower Ground floor, Rayners Lane, permissioned (670 m (0.4 miles))
- Imperial Drive, 175 - 205, Imperial House, Rayners Lane, permissioned (710 m (0.4 miles))
- Imperial Drive, 175 - 205, Imperial House, Rayners Lane, permissioned (710 m (0.4 miles))
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
Finished in the last three months
- 19 October 2026 to 20 October 2026: LONDON BOROUGH OF HARROW, Highway improvement works, road closure, on the carriageway (major works)
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 1 address is in areas at high risk, 0 at medium risk and 0 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 is in flood zone 2 or 3.
Recorded floods
No recorded flood covers the centre 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
2 storm overflows within 1 km (0.6 miles) of the street's postcodes spilled 0 times, for under an hour in all, in 2025.
| Overflow | Into | Spills | Hours | Distance |
|---|---|---|---|---|
| N/A Thames Water | 0 | 0 | 280 m | |
| N/A Thames Water | 0 | 0 | 770 m (0.5 miles) |
A storm overflow lets sewage diluted with rainwater into a river, stream or the sea when heavy rain overwhelms the sewers, so the spills here affect the water they run into, not homes. A spill is counted the regulators' way: a first 12 hours, then each 24 hours it goes on.
Coal mining
No postcode centre here is in a coalfield: the Mining Remediation Authority records no coal mining risk here.
Radon
The postcode is in a 1 km square in the lowest band of radon potential: fewer than 1 home in 100 is estimated to be at or above the Action Level. It is not a radon Affected Area.
Historic landfill
No historic landfill site is within 500 m (0.3 miles) of the street's postcodes.
Height above sea level
The street's 15 addresses are between 44 m and 45 m above sea level (44 m on average).
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| HA2 9TD | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Northolt Park 176,000 journeys in 2024–25 | 2.4 km (1.5 miles) |
| South Ruislip 165,000 journeys in 2024–25 | 2.5 km (1.5 miles) | |
| Harrow-On-The-Hill 3.1 million journeys in 2024–25 | 3 km (1.8 miles) | |
| Underground, metro or tram | Rayners Lane Underground Station | 580 m (0.4 miles) |
| Eastcote Underground Station | 1.2 km (0.8 miles) | |
| North Harrow Underground Station | 1.6 km (1 mile) | |
| Bus stops | 3 stops within 400 m (0.2 miles), 23 within 800 m (0.5 miles); nearest The Glen (HA5) Rayners Lane | 220 m |
| Bus or coach station | Hillingdon Underground Station North Hillingdon | 5.4 km (3.4 miles) |
| Ferry terminal | Kew Pier | 11.8 km (7.3 miles) |
| Car parks | 2 within 800 m (0.5 miles); nearest Rayners Lane Station Car Park (TfL) | 540 m (0.3 miles) |
| EV charging points | 1 within 1.6 km (1 mile); nearest Apcoa Charging Station | 1.2 km (0.8 miles) |
| Airport with scheduled flights | London Heathrow Airport LHR | 12.9 km (8 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 10 practices within 1.6 km (1 mile); nearest First Choice Medical Care | 520 m (0.3 miles) |
| Pharmacies | 8 pharmacies within 1.6 km (1 mile); nearest Meads Pharmacy | 590 m (0.4 miles) |
| NHS dentists | 10 practices within 1.6 km (1 mile); nearest Dental Surgery | 450 m (0.3 miles) |
| Hospital | Roxbourne Hospital | 1.4 km (0.9 miles) |
| Care homes | 4 homes within 1.6 km (1 mile); nearest Santa Care Good Jun 2024 | 190 m |
| Police station | Metropolitan Police Service | 2.3 km (1.4 miles) |
| Cash machines | 2 machines within 800 m (0.5 miles); nearest ATM | 590 m (0.4 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 2 within 800 m (0.5 miles); nearest Roxbourne Park 20 ha | 50 m |
| Play area | 2 within 800 m (0.5 miles); nearest Unnamed 2,150 m² | 80 m |
| Playing field | 3 within 800 m (0.5 miles); nearest Unnamed 2.7 ha | 660 m (0.4 miles) |
| Allotments | 2 within 800 m (0.5 miles); nearest Unnamed 2.3 ha | 230 m |
Within 800 m (0.5 miles): 2 parks and gardens, 31 hectares in all.
Landmarks
The nearest historic landmark is Ace Cinema, a listed building (Grade II*), 630 m (0.4 miles) east. 3 listed buildings are within 1 km (0.6 miles), 1 of them Grade II*.
| Name | What it is | From the middle of the street |
|---|---|---|
| Ace Cinema | Listed building, Grade II* | 630 m (0.4 miles) east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Nower Hill | Hill | 2.1 km (1.3 miles) north |
| The Roxbourne | Lake or reservoir | 2.9 km (1.8 miles) south |
| Park Wood | Wood | 3.5 km (2.2 miles) north-west |
| Haste Hill | Hill | 3.6 km (2.2 miles) north-west |
| Ruislip Woods | Wood | 3.8 km (2.4 miles) north-west |
| Ickenham Marsh | Wetland | 4.3 km (2.7 miles) south-west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 13.4 | 40 | 10 |
| Fine particles (PM2.5) | 8.2 | 20 | 5 |
| Particles (PM10) | 12.6 | 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 |
|---|---|---|
| 55 to 59 | 2 | 0 |
| Under 55 | 13 | 15 |
2 of the street's 15 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 Harrow: see them on the Harrow page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Pinner High School | Secondary | 11–18 | 710 m (0.4 miles) | No published inspection | GCSE 2026 (provisional): Attainment 8 60.3 (57.1 in 2025 and 57.6 in 2024); 71.5% grade 5+ in English and maths A level 2025: average grade C+; 11.8% AAB or better; progress above average |
| Roxbourne Primary School | Primary | 3–11 | 740 m (0.5 miles) | No published inspection | 83% at the expected standard in reading, writing and maths, 5% at the higher standard (2025; 86% in 2024 and 66% in 2023) |
| Newton Farm Nursery, Infant and Junior School | Primary | 3–11 | 750 m (0.5 miles) | Good (Sep 2022, overall grade under the previous framework) | 83% at the expected standard in reading, writing and maths, 28% at the higher standard (2025; 83% in 2024 and 89% in 2023) |
| Cannon Lane Primary School | Primary | 4–11 | 870 m (0.5 miles) | No overall grade (Dec 2024, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding | 84% at the expected standard in reading, writing and maths, 24% at the higher standard (2025; 84% in 2024 and 79% in 2023) |
| Longfield Primary School | Primary | 3–11 | 890 m (0.6 miles) | Good (Jul 2023, overall grade under the previous framework) | 72% at the expected standard in reading, writing and maths, 14% at the higher standard (2025; 66% in 2024 and 67% in 2023) |
| Newnham Junior School | Primary | 7–11 | 1 km (0.6 miles) | Outstanding (Mar 2024, overall grade under the previous framework) | 81% at the expected standard in reading, writing and maths, 17% at the higher standard (2025; 78% in 2024 and 80% in 2023) |
| Newnham Infant and Nursery School | Primary | 3–7 | 1 km (0.6 miles) | No published inspection | None published |
| Field End Infant School | Primary | 2–7 | 1.1 km (0.7 miles) | Good (May 2024, overall grade under the previous framework) | None published |
| Field End Junior School | Primary | 7–11 | 1.1 km (0.7 miles) | Good (Apr 2024, overall grade under the previous framework) | 59% at the expected standard in reading, writing and maths, 3% at the higher standard (2025; 54% in 2024 and 57% in 2023) |
| Heathland School | Primary | 3–11 | 1.4 km (0.9 miles) | Good (Sep 2023, overall grade under the previous framework) | 63% at the expected standard in reading, writing and maths, 6% at the higher standard (2025; 70% in 2024 and 72% in 2023) |
| Grange Primary School | Primary | 3–11 | 1.5 km (0.9 miles) | Good (Apr 2023, overall grade under the previous framework) | 65% at the expected standard in reading, writing and maths, 8% at the higher standard (2025; 61% in 2024 and 60% in 2023) |
| St Swithun Wells Catholic Primary School Roman Catholic | Primary | 3–11 | 1.5 km (0.9 miles) | Good (Feb 2024, overall grade under the previous framework) | 72% at the expected standard in reading, writing and maths, 14% at the higher standard (2025; 77% in 2024 and 70% 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
The ten nearest nurseries, pre-schools and clubs are all within 1 km (0.6 miles); the nearest is 70 m from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Muddy Puddles Nursery HA2 9TB | Full day care | 38 | Good (Jul 2025, overall grade under the previous framework) | 70 m |
| Harmony Nursery HA2 9LG | Full day care | 22 | Good (Jan 2025, overall grade under the previous framework) | 520 m (0.3 miles) |
| Regent Nursery HA5 5ET | Full day care | 28 | Good (May 2024, overall grade under the previous framework) | 590 m (0.4 miles) |
| Rayners Lane Kumon Centre HA5 1JD | Sessional day care (over fives) | Not inspected yet | 610 m (0.4 miles) | |
| Busy Bees Preschool HA5 5DT | Sessional day care | 28 | Good (Dec 2021, overall grade under the previous framework) | 690 m (0.4 miles) |
| Magna Extended Schools at Newton Farm HA2 9JU | Out-of-school day care (over fives) | Not inspected yet | 750 m (0.5 miles) | |
| Be Active Sports and Clubs Childcare HA2 9QF | Out-of-school day care | 30 | Apr 2026: Strong standard in 2 areas, Expected standard in 2 | 840 m (0.5 miles) |
| Roxbourne Primary School Daycare HA2 9QF | Sessional day care | 24 | Not inspected yet | 840 m (0.5 miles) |
| Complete Sports Ltd - Cannon Lane Primary School HA5 1TS | Out-of-school day care | 125 | Not inspected yet | 1 km (0.6 miles) |
| PSD Childcare HA4 9RW | Out-of-school day care (over fives) | Not inspected yet | 1 km (0.6 miles) |
Ofsted also registers 76 childminders and 68 home childcarers (nannies) in Harrow. 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 |
|---|---|---|---|---|
| Santa Care HA2 9QB | Hospitals/Childcare/Caring Premises | 190 m | 5 Very good | 14 Nov 2024 |
| Gesher School HA5 1JF | School/college/university | 320 m | 5 Very good | 22 May 2024 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 9 |
| Anti-social behaviour | 6 |
| Other theft | 4 |
| Criminal damage and arson | 3 |
| Public order | 3 |
| Burglary | 3 |
| Vehicle crime | 2 |
| Bicycle theft | 1 |
Most of these are attached to: On or near Newlyn Gardens (14); On or near Exchange Walk (7); On or near Raynton Close (6); On or near Trescoe Gardens (4).
Road safety
1 collision in which someone was hurt was reported on and around the street in 2021 to 2025: 0 fatal, 0 serious and 1 slight. 1 involved a pedestrian. 100% happened in the dark, and 100% on a wet or icy road. Most were on roads with a 30 mph limit.
| Year | Collisions | Fatal or serious |
|---|---|---|
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| Date | Severity | Who was hurt | Road | Conditions |
|---|---|---|---|---|
| 9 Nov 2023 19:23 | Slight | 1 person: 1 pedestrian | Minor road, 30 mph | Dark, street lights on, wet road |
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
No traffic count point is within 500 m (0.3 miles) of the street's postcodes. The Department for Transport counts every motorway and A road and only a sample of minor roads, so a quiet residential street usually has none.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 40 | 40 |
| Children under 15 | 14% | 17% |
| Aged 65 and over | 16% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 70% | 61% |
| Owned outright | 37% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 2% | 17% |
| Private rented | 28% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 62% | 57% |
| Unemployment (of those working or looking for work) | 4% | 6% |
| Retired (of adults) | 16% | 22% |
| Long-term sick or disabled (of adults) | 2% | 4% |
| Work mainly from home (of those in work) | 41% | 32% |
| Travel to work by car or van | 36% | 48% |
| By train, Underground, metro or tram | 13% | 4% |
| By any public transport, including bus | 16% | 8% |
| On foot or by bicycle | 6% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 58% | 65% |
| Work 30 km (19 miles) or more away | 2% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 48% | 34% |
| No qualifications | 12% | 18% |
| Apprenticeship as highest qualification | under 1% | 5% |
| Main language English (aged 3 and over) | 66% | 91% |
| Cannot speak English well or at all | 5% | 2% |
Deprivation
The neighbourhood around this street is in decile 8 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
- Roadworks Street works permit: LONDON BOROUGH OF HARROW: Highway improvement works, 19 October 2026 to 20 October 2026 (road closure) found 3 November 2026
Postcodes on this street
- HA2 9TD: 15 addresses
Nearby streets
Trescoe Gardens · Newlyn Gardens · Exchange Walk · Rayners Lane · Cannon Lane · Spinnells Road · Carlisle Close · High Worple · The Glen · Warden Avenue · Downs Avenue · Edinburgh Close
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.