Windfield Leatherhead, Mole Valley
119 addresses across 6 postcodes (KT22), about 480 m (0.3 miles) long, classed as a local road. USRN 25901357.
- Sales: 241 recorded sales since 1995; in 2026 the median was £304,250 across 8 sales.
- Energy: 94 homes have an energy certificate (C: 43, D: 35, E: 14, F: 2).
- Flood: 12 addresses on its postcodes are in areas at high or medium risk of flooding from rivers, the sea or surface water.
- Council tax: Most homes around it are in council tax band D; Band D in Mole Valley costs £2,520 a year in 2026-27.
- Broadband: Gigabit broadband is available to 0% to 100% of premises.
- Transport: The nearest railway station is Leatherhead, about 720 m (0.4 miles) away in a straight line.
- Green space: The nearest park or garden, Park Gardens, is about 450 m (0.3 miles) away.
- Air: Background air pollution in 2024 was 11.0 µg/m³ of nitrogen dioxide and 7.4 of PM2.5, within UK legal limits.
- Height: Its addresses are 52 to 57 m above sea level.
- Noise: 42 of its 119 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Molebridge Practice, about 1.6 km (1 mile) away.
- People: About 960 people lived in the census areas around it in 2021; 56% of households owned their home and 45% of adults held a degree or other higher qualification.
- Crime: 119 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 | 8 | £304,250 | £265,000 | £570,000 |
| 2025 | 5 | £260,000 | £249,950 | £475,000 |
| 2024 | 5 | £315,000 | £244,000 | £483,000 |
| 2023 | 5 | £290,000 | £235,000 | £315,000 |
| 2022 | 6 | £371,250 | £297,500 | £525,000 |
| 2021 | 8 | £293,500 | £265,000 | £325,000 |
| 2020 | 7 | £282,000 | £260,000 | £490,000 |
| 2019 | 10 | £290,000 | £255,000 | £300,000 |
| 2018 | 6 | £295,250 | £267,500 | £530,000 |
| 2017 | 5 | £280,000 | £267,000 | £292,000 |
| 2016 | 9 | £295,000 | £276,000 | £427,500 |
| 2015 | 8 | £279,250 | £259,950 | £444,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 14 Aug 2026 | 103 KT22 8UJ | Flat or maisonette | £265,000 | Leasehold. |
| 21 Jul 2026 | 58 KT22 8UQ | Terraced | £530,000 | |
| 26 May 2026 | 104 KT22 8UJ | Flat or maisonette | £303,500 | Leasehold. |
| 15 May 2026 | 32 KT22 8UG | Flat or maisonette | £305,000 | Leasehold. |
| 15 May 2026 | 9 KT22 8UG | Flat or maisonette | £300,000 | Leasehold. |
| 22 Apr 2026 | 83 KT22 8UJ | Flat or maisonette | £290,000 | Leasehold. |
| 27 Feb 2026 | 59 KT22 8UH | Terraced | £532,950 | |
| 16 Jan 2026 | 70 KT22 8UH | Semi-detached | £570,000 | |
| 19 Dec 2025 | 65 KT22 8UH | Terraced | £475,000 | |
| 9 Sep 2025 | 90 KT22 8UJ | Flat or maisonette | £250,000 | Leasehold. |
| 28 May 2025 | 82 KT22 8UJ | Flat or maisonette | £260,000 | Leasehold. |
| 2 May 2025 | 81 KT22 8UJ | Flat or maisonette | £249,950 | Leasehold. |
| 28 Mar 2025 | 17 KT22 8UG | Flat or maisonette | £270,000 | Leasehold. |
| 27 Sep 2024 | 25 KT22 8UG | Flat or maisonette | £315,000 | Leasehold. |
| 20 Sep 2024 | 37 KT22 8UG | Flat or maisonette | £315,000 | Leasehold. |
| 20 Aug 2024 | 76 KT22 8UJ | Flat or maisonette | £280,000 | Leasehold. |
| 26 Jul 2024 | 64 KT22 8UH | Terraced | £483,000 | |
| 30 Jan 2024 | 108 KT22 8UJ | Semi-detached | £244,000 | Leasehold. |
| 27 Oct 2023 | 22 KT22 8UG | Flat or maisonette | £290,000 | Leasehold. |
| 22 Sep 2023 | 104 KT22 8UJ | Flat or maisonette | £235,000 | Leasehold. |
| 28 Jul 2023 | 30 KT22 8UG | Flat or maisonette | £305,000 | Leasehold. |
| 27 Jul 2023 | 86 KT22 8UJ | Flat or maisonette | £285,000 | Leasehold. |
| 25 Jan 2023 | 5 KT22 8UG | Terraced | £315,000 | Leasehold. |
| 4 Oct 2022 | 88 KT22 8UJ | Flat or maisonette | £300,000 | Leasehold. |
| 31 Aug 2022 | 49 KT22 8UQ | Terraced | £516,000 | |
| 5 Aug 2022 | 105 KT22 8UJ | Flat or maisonette | £297,500 | Leasehold. |
| 11 May 2022 | 33 KT22 8UG | Terraced | £302,500 | Leasehold. |
| 25 Feb 2022 | 58 KT22 8UQ | Terraced | £525,000 | |
| 17 Jan 2022 | 40 KT22 8UG | Terraced | £440,000 | |
| 15 Oct 2021 | 2 KT22 8UG | Flat or maisonette | £292,000 | Leasehold. |
| 20 Sep 2021 | 74 KT22 8UJ | Flat or maisonette | £295,000 | Leasehold. |
| 20 Aug 2021 | 83 KT22 8UJ | Flat or maisonette | £290,000 | Leasehold. |
| 25 Jun 2021 | 89 KT22 8UJ | Flat or maisonette | £295,000 | Leasehold. |
| 4 Jun 2021 | 85 KT22 8UJ | Flat or maisonette | £310,000 | Leasehold. |
| 30 Apr 2021 | 96 KT22 8UJ | Flat or maisonette | £265,000 | Leasehold. |
| 23 Apr 2021 | 8 KT22 8UG | Flat or maisonette | £325,000 | Leasehold. |
| 4 Feb 2021 | 31 KT22 8UG | Flat or maisonette | £275,000 | Leasehold. |
| 23 Dec 2020 | 87 KT22 8UJ | Flat or maisonette | £265,000 | Leasehold. |
| 16 Nov 2020 | 54 KT22 8UQ | Terraced | £490,000 | |
| 16 Oct 2020 | 37 KT22 8UG | Flat or maisonette | £261,000 | Leasehold. |
| 11 Sep 2020 | 80 KT22 8UJ | Flat or maisonette | £260,000 | Leasehold. |
| 12 Aug 2020 | 27 KT22 8UG | Flat or maisonette | £300,000 | Leasehold. |
| 23 Apr 2020 | 60 KT22 8UH | Terraced | £446,500 | |
| 29 Jan 2020 | 74 KT22 8UJ | Flat or maisonette | £282,000 | Leasehold. |
| 15 Nov 2019 | 13 KT22 8UG | Flat or maisonette | £290,000 | Leasehold. |
| 29 Jul 2019 | 25 KT22 8UG | Flat or maisonette | £255,000 | Leasehold. |
| 19 Jul 2019 | 16 KT22 8UG | Flat or maisonette | £295,000 | Leasehold. |
| 23 May 2019 | 10 KT22 8UG | Flat or maisonette | £299,000 | Leasehold. |
| 2 May 2019 | 100 KT22 8UJ | Flat or maisonette | £270,000 | Leasehold. |
| 29 Mar 2019 | 29 KT22 8UG | Flat or maisonette | £300,000 | Leasehold. |
Energy performance certificates
94 homes with a current certificate; median floor area 67 m². Most common: Flat (55); Maisonette, mid-terrace (9); House, mid-terrace (8). Built: 1950-1966 (50); 1967-1975 (33); 1976-1982 (8). Tenure at assessment: owner-occupied (55); rented (private) (12).
Each home's certificates and sales (56 addresses)
- 1, Sherborne Walk
- 1, Windfield
- 4, Windfield
- 5, Windfield
- 7, Windfield
- 8, Windfield
- 10, Windfield
- 11, Windfield
- 12, Windfield
- 13, Windfield
- 16, Windfield
- 21, Windfield
- 26, Windfield
- 27, Windfield
- 32, Windfield
- 33, Windfield
- 38, Windfield
- 40, Windfield
- 43, Windfield
- 45, Windfield
- 48, Windfield
- 49, Windfield
- 51, Windfield
- 52, Windfield
- 54, Windfield
- 55, Windfield
- 57, Windfield
- 60, Windfield
- 66, Windfield
- 69, Windfield
- 73, Windfield
- 74, Windfield
- 75, Windfield
- 76, Windfield
- 77, Windfield
- 78, Windfield
- 79, Windfield
- 80, Windfield
- 84, Windfield
- 85, Windfield
- 87, Windfield
- 88, Windfield
- 89, Windfield
- 91, Windfield
- 92, Windfield
- 94, Windfield
- 95, Windfield
- 96, Windfield
- 97, Windfield
- 99, Windfield
- 100, Windfield
- 101, Windfield
- 102, Windfield
- 106, Windfield
- 107, Windfield
- 108, Windfield
Council tax
What each band costs in Mole Valley in 2026-27: Band D £2,520 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,680 | £1,960 | £2,240 | £2,520 | £3,080 | £3,640 | £4,200 | £5,040 |
Homes by band in the neighbourhoods around this street: most are in band D (24% of about 1,770 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)
- 49-51, High Street, Leatherhead, Surrey, KT22 8AG: up to 6 homes, permissioned (240 m)
- Fairfield Works, Upper Fairfield Rd, Leatherhead KT22 7HJ, permissioned (280 m)
- Devonshire House, 66 Church St, Leatherhead KT22 8DP, permissioned (380 m)
- Lloyds TSB Bank Plc, 20, North Street, Leatherhead, Surrey, KT22 7AS: up to 5 homes, permissioned (420 m (0.3 miles))
- Kingston House Gardens, Leatherhead, Surrey, KT22 7HL, permissioned (460 m (0.3 miles))
- Land rear of Grantham House, 11-15, North Street, Leatherhead, Surrey, KT22 7AX: up to 9 homes, permissioned (500 m (0.3 miles))
- Land r/o 35 & 35A, Bridge Street, Leatherhead, Surrey, KT22 8BN: up to 5 homes, permissioned (510 m (0.3 miles))
- Sorting Office, Station Rd, Leatherhead KT22 7AE and Telephone Exchange,Station Rd, Leatherhead KT22 7AF: up to 95 homes, not permissioned (580 m (0.4 miles))
Roadworks
Finished in the last three months
- 1 October 2026: BT, New service connection, no carriageway incursion, on the footway (minor works)
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 4 addresses are in areas at high risk, 8 at medium risk and 11 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 |
|---|---|---|---|
| KT22 8UG | not in 2 or 3 | 2 / 4 / 2 | unlikely |
| KT22 8UJ | not in 2 or 3 | 0 / 3 / 3 | unlikely |
| KT22 8UQ | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| KT22 8UH | not in 2 or 3 | 1 / 0 / 0 | unlikely |
| KT22 8UL | not in 2 or 3 | 0 / 0 / 0 | unlikely |
| KT22 8SF | not in 2 or 3 | 1 / 1 / 6 | unlikely |
Height above sea level
The street's 119 addresses are between 52 m and 57 m above sea level (55 m on average); the ground rises about 5 m from the lowest to the highest.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| KT22 8SF | 100% | 100% | 100% | 0% |
| KT22 8UG | 100% | 100% | 100% | 0% |
| KT22 8UH | 100% | 100% | 100% | 0% |
| KT22 8UJ | 100% | 0% | 0% | 0% |
| KT22 8UL | 100% | 100% | 100% | 0% |
| KT22 8UQ | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Leatherhead 1.5 million journeys in 2024–25 | 720 m (0.4 miles) |
| Ashtead 1.0 million journeys in 2024–25 | 2.7 km (1.7 miles) | |
| Bookham 212,000 journeys in 2024–25 | 4.3 km (2.7 miles) | |
| Bus stops | 8 stops within 400 m (0.2 miles), 27 within 800 m (0.5 miles); nearest Linden Court Leatherhead | 30 m |
| Bus or coach station | Boxhill - Burford Bridge Hotel Box Hill | 4.7 km (2.9 miles) |
| Ferry terminal | Ditton Island Ferry Landing Thames Ditton | 10.8 km (6.7 miles) |
| Car parks | Apcoa | 2.2 km (1.4 miles) |
| EV charging points | 14 within 1.6 km (1 mile); nearest 33 Windfield | 10 m |
| Airport with scheduled flights | London Gatwick Airport LGW | 19 km (12 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 1 practices within 1.6 km (1 mile); nearest Molebridge Practice | 1.6 km (1 mile) |
| Pharmacies | 2 pharmacies within 1.6 km (1 mile); nearest Boots | 270 m |
| NHS dentists | 5 practices within 1.6 km (1 mile); nearest St Johns Dental Practice | 170 m |
| Hospital | Leatherhead Community Hospital | 270 m |
| Police station | The Police Federation of England and Wales | 850 m (0.5 miles) |
| Cash machines | 1 machines within 800 m (0.5 miles); nearest TGJones Leatherhead NatWest | 330 m |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 4 within 800 m (0.5 miles); nearest Park Gardens 5,060 m² | 450 m (0.3 miles) |
| Largest park within 800 m (0.5 miles) | Red House Recreation Ground 1.4 ha | 580 m (0.4 miles) |
| Play area | 3 within 800 m (0.5 miles); nearest Unnamed 330 m² | 490 m (0.3 miles) |
| Playing field | 1 within 800 m (0.5 miles); nearest Fortyfoot Recreation Ground 1.9 ha | 400 m (0.2 miles) |
| Allotments | 1 within 800 m (0.5 miles); nearest Unnamed 8,580 m² | 440 m (0.3 miles) |
Within 800 m (0.5 miles): 4 parks and gardens, 3.0 hectares in all.
Landmarks
The nearest historic landmark is Church of St Mary and St Nicholas, a listed building (Grade II*), 440 m (0.3 miles) south-west. 51 listed buildings are within 1 km (0.6 miles), 3 of them Grade II*.
| Name | What it is | From the middle of the street |
|---|---|---|
| Church of St Mary and St Nicholas | Listed building, Grade II* | 440 m (0.3 miles) south-west |
| The Running Horse Public House | Listed building, Grade II* | 600 m (0.4 miles) west |
| Thorncroft Manor | Listed building, Grade II* | 800 m (0.5 miles) south-west |
| Medieval moated site, The Mounts, Pachesham Farm | Scheduled monument | 2 km (1.2 miles) north-west |
| Ashtead Park | Registered park or garden, Grade II | 3 km (1.8 miles) north-east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Tyrrell's Wood | Wood | 1.3 km (0.8 miles) south-east |
| Barnett Wood | Wood | 1.3 km (0.8 miles) north |
| Hawk's Hill | Hill | 1.6 km (1 mile) south-west |
| Coronation Glen | Wood | 1.7 km (1 mile) south |
| Icehouse Combe | Valley | 2.4 km (1.5 miles) south |
| Island Pond | Lake or reservoir | 2.8 km (1.8 miles) north-east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 11.0 | 40 | 10 |
| Fine particles (PM2.5) | 7.4 | 20 | 5 |
| Particles (PM10) | 11.3 | 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 |
|---|---|---|
| 60 to 64 | 15 | 0 |
| 55 to 59 | 27 | 0 |
| Under 55 | 77 | 119 |
42 of the street's 119 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 Mole Valley: see them on the Mole Valley page.
Nearest schools
| School | Phase | Ages | Distance | Inspection |
|---|---|---|---|---|
| Leatherhead Trinity School and Nursery Church of England/Methodist | Primary | 2–11 | 670 m (0.4 miles) | No published inspection |
| St Peter's Catholic Primary School Roman Catholic | Primary | 4–11 | 850 m (0.5 miles) | Outstanding (Jun 2024, overall grade under the previous framework) |
| St Andrew's Catholic School Roman Catholic | Secondary | 11–18 | 880 m (0.5 miles) | Outstanding (May 2024, overall grade under the previous framework) |
| Therfield School | Secondary | 11–18 | 1.3 km (0.8 miles) | No published inspection |
| West Ashtead Primary Academy | Primary | 0–11 | 1.4 km (0.9 miles) | Report card (Jan 2026): Curriculum and teaching: Expected standard; Achievement: Expected standard; Attendance and behaviour: Expected standard; Personal development and wellbeing: Expected standard; Inclusion: Expected standard; Leadership and governance: Expected standard; Early years: Expected standard; Safeguarding standards: Met |
Food hygiene ratings nearby
| Business | Type | Distance | Rating | Rated |
|---|---|---|---|---|
| LeatherHEAD START KT22 8AT | Other catering premises | 130 m | 5 Very good | 3 Sep 2026 |
| St John's School KT22 8SP | School/college/university | 140 m | 5 Very good | 6 Nov 2025 |
| J P Chef KT22 8ED | Takeaway/sandwich shop | 180 m | 5 Very good | 17 Nov 2025 |
| Karahi House KT22 8ED | Takeaway/sandwich shop | 190 m | 5 Very good | 16 Dec 2025 |
| The Stop KT22 8AJ | Restaurant/Cafe/Canteen | 210 m | 5 Very good | 29 Apr 2025 |
| Tops Pizza KT22 8AJ | Takeaway/sandwich shop | 210 m | Awaiting inspection | |
| Sea & Seeds KT22 8AJ | Restaurant/Cafe/Canteen | 220 m | 3 Generally satisfactory | 22 Sep 2026 |
| Brotherdough Bakery KT22 8AJ | Restaurant/Cafe/Canteen | 220 m | 5 Very good | 8 Oct 2026 |
| Dukes Head / Tanatan Indian Restaurant KT22 8AG | Restaurant/Cafe/Canteen | 220 m | 4 Good | 11 Jun 2025 |
| Dutch Delights KT22 8AJ | Restaurant/Cafe/Canteen | 230 m | 5 Very good | 7 Aug 2026 |
| Sunshine Cafe KT22 8AG | Restaurant/Cafe/Canteen | 240 m | 5 Very good | 15 Jan 2026 |
| Thai Pinto Restaurants Ltd KT22 8AJ | Restaurant/Cafe/Canteen | 240 m | 5 Very good | 11 Jun 2025 |
| Piazza Firenze KT22 8AG | Restaurant/Cafe/Canteen | 250 m | 3 Generally satisfactory | 31 Mar 2026 |
| Edmund Tylney KT22 8AW | Pub/bar/nightclub | 260 m | 5 Very good | 11 Jun 2025 |
| DrCloud Food & Wine KT22 8AW | Retailers - other | 290 m | 5 Very good | 8 Oct 2026 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 53 |
| Anti-social behaviour | 20 |
| Public order | 20 |
| Criminal damage and arson | 8 |
| Vehicle crime | 7 |
| Other theft | 4 |
| Drugs | 3 |
| Shoplifting | 2 |
| Robbery | 1 |
| Burglary | 1 |
Most of these are attached to: On or near Elm Road (49); On or near Poplar Road (24); On or near Epsom Road (12); On or near Byron Place (8); On or near Queen Anne'S Gardens (5).
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 42 | 40 |
| Children under 15 | 15% | 17% |
| Aged 65 and over | 19% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 56% | 61% |
| Owned outright | 27% | 33% |
| Shared ownership | 1% | 1% |
| Social rented | 12% | 17% |
| Private rented | 31% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 64% | 57% |
| Unemployment (of those working or looking for work) | 5% | 6% |
| Retired (of adults) | 18% | 22% |
| Long-term sick or disabled (of adults) | 6% | 4% |
| Work mainly from home (of those in work) | 41% | 32% |
| Travel to work by car or van | 42% | 48% |
| By train, Underground, metro or tram | 4% | 4% |
| By any public transport, including bus | 6% | 8% |
| On foot or by bicycle | 9% | 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 | 5% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 45% | 34% |
| No qualifications | 11% | 18% |
| Apprenticeship as highest qualification | 4% | 5% |
| Main language English (aged 3 and over) | 92% | 91% |
| Cannot speak English well or at all | under 1% | 2% |
Deprivation
The neighbourhoods around this street are all 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
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
- KT22 8UG: 44 addresses
- KT22 8UJ: 38 addresses
- KT22 8UQ: 16 addresses
- KT22 8UH: 14 addresses
- KT22 8UL: 6 addresses
- KT22 8SF: 1 address of 55 in the postcode
Nearby streets
Epsom Road · Linden Court · St John's Road · Byron Place · Highlands Road · Epsom Road · Elm Road · Leach Grove · Magazine Place · Waverley Place · Linden Pit Path · Owen Place
All the streets in KT22 and across Mole Valley.
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.