Lee Close St Margarets, East Hertfordshire

52 addresses across 1 postcode (SG12), about 40 m long, classed as a local road. USRN 12410057.

  • Sales: 152 recorded sales since 1995; in 2026 the median was £278,500 across 2 sales.
  • Energy: 44 homes have an energy certificate (C: 28, D: 15, E: 1).
  • Flood: No address on its postcodes is in an area 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 East Hertfordshire costs £2,455 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is St Margarets (Herts), about 190 m away in a straight line.
  • Green space: The nearest park or garden is about 60 m away.
  • Air: Background air pollution in 2024 was 9.2 µg/m³ of nitrogen dioxide and 7.3 of PM2.5, within UK legal limits.
  • Height: It is about 29 m above sea level.
  • Noise: 3 of its 52 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is Hailey View Surgery, about 1.7 km (1 mile) away.
  • People: About 140 people lived in the census areas around it in 2021; 64% of households owned their home and 36% of adults held a degree or other higher qualification.
  • Crime: 42 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.

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
20262£278,500£275,000£282,000
20253£285,000£143,150£310,000
20241£230,000£230,000£230,000
20231£280,000£280,000£280,000
20225£280,000£142,500£300,000
20213£275,000£208,000£290,000
20204£255,000£225,000£289,995
20194£206,500£200,000£275,000
20181£232,000£232,000£232,000
20174£265,000£229,000£284,500
20166£235,000£180,000£260,000
20153£215,000£175,000£220,000
Most recent sales (latest 50 of 152)
DateAddressTypePriceNotes
22 May 202629 SG12 8JNFlat or maisonette£275,000Leasehold.
16 Feb 20266 SG12 8JNFlat or maisonette£282,000Leasehold.
13 Aug 202522 SG12 8JNFlat or maisonette£205,500Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
10 Jul 202551 SG12 8JNFlat or maisonette£285,000Leasehold.
24 Mar 202523 SG12 8JNTerraced£310,000Leasehold.
21 Feb 202546 SG12 8JNFlat or maisonette£143,150Leasehold.
19 Jul 20243 SG12 8JNFlat or maisonette£230,000Leasehold.
25 Jun 202413 SG12 8JNOther£300,000Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
6 Oct 202320 SG12 8JNTerraced£280,000Leasehold.
25 Nov 20227 SG12 8JNFlat or maisonette£245,000Leasehold.
19 Aug 202217 SG12 8JNFlat or maisonette£280,000Leasehold.
19 Aug 202233 SG12 8JNFlat or maisonette£142,500Leasehold.
11 Aug 202234 SG12 8JNTerraced£300,000Leasehold.
13 Jan 202214 SG12 8JNFlat or maisonette£300,000Leasehold.
28 May 202137 SG12 8JNFlat or maisonette£208,000Leasehold.
17 May 20216 SG12 8JNFlat or maisonette£275,000Leasehold.
12 Feb 202123 SG12 8JNTerraced£290,000Leasehold.
13 Nov 202031 SG12 8JNFlat or maisonette£265,000Leasehold.
23 Oct 202045 SG12 8JNFlat or maisonette£215,000Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
20 Jul 202014 SG12 8JNFlat or maisonette£289,995Leasehold.
7 May 20203 SG12 8JNFlat or maisonette£225,000Leasehold.
1 May 202049 SG12 8JNTerraced£245,000Leasehold.
23 Oct 201941 SG12 8JNTerraced£275,000Leasehold.
4 Oct 201938 SG12 8JNFlat or maisonette£208,000Leasehold.
30 Aug 201939 SG12 8JNFlat or maisonette£205,000Leasehold.
30 Aug 201944 SG12 8JNFlat or maisonette£200,000Leasehold.
12 Dec 20187 SG12 8JNFlat or maisonette£232,000Leasehold.
23 Nov 201721 SG12 8JNTerraced£284,500Leasehold.
29 Sep 20173 SG12 8JNFlat or maisonette£229,000Leasehold.
11 Aug 201731 SG12 8JNFlat or maisonette£265,000Leasehold.
13 Jan 201714 SG12 8JNFlat or maisonette£265,000Leasehold.
18 Nov 20166 SG12 8JNFlat or maisonette£260,000Leasehold.
4 Nov 201624 SG12 8JNTerraced£245,000Leasehold.
1 Aug 201617 SG12 8JNFlat or maisonette£249,995Leasehold.
20 May 201634 SG12 8JNTerraced£225,000Leasehold.
31 Mar 20165 SG12 8JNFlat or maisonette£205,000Leasehold.
22 Mar 201610 SG12 8JNFlat or maisonette£180,000Leasehold.
15 Dec 201532 SG12 8JNFlat or maisonette£220,000Leasehold.
25 Sep 201541 SG12 8JNTerraced£215,000Leasehold.
2 Jul 20157 SG12 8JNFlat or maisonette£175,000Leasehold.
20 Oct 201445 SG12 8JNFlat or maisonette£161,000Leasehold.
26 Jun 201423 SG12 8JNFlat or maisonette£179,995Leasehold.
11 Apr 20149 SG12 8JNFlat or maisonette£137,500Leasehold.
31 Mar 20146 SG12 8JNFlat or maisonette£195,000Leasehold.
18 Mar 20143 SG12 8JNFlat or maisonette£145,000Leasehold.
30 Sep 201314 SG12 8JNFlat or maisonette£185,601Leasehold.
30 Sep 201324 SG12 8JNTerraced£185,000Leasehold.
28 Aug 201339 SG12 8JNFlat or maisonette£139,000Leasehold.
27 Jun 201341 SG12 8JNFlat or maisonette£177,000Leasehold.
23 May 201329 SG12 8JNFlat or maisonette£190,000Leasehold.

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 October 2008 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

44 homes with a current certificate; median floor area 46 m². Most common: Flat (30); House, enclosed end-terrace (5); House, mid-terrace (4). Built: 1983-1990 (17); 1991-1995 (14); 1996-2002 (7). Tenure at assessment: owner-occupied (20); rented (private) (15).

Each home's certificates and sales (24 addresses)

Council tax

What each band costs in East Hertfordshire in 2026-27: Band D £2,455 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£1,637£1,909£2,182£2,455£3,000£3,546£4,091£4,910

Homes by band in the neighbourhood around this street: most are in band C (30% of about 770 homes).

Sources: Valuation Office Agency, Council Tax: stock of properties, homes at 31 March 2026 (counts rounded to the nearest 10; some small counts withheld), 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): 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)

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

No street works under way, planned or finished in the last three months on this street, in permits up to 31 October 2026.

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, 0 addresses are in areas at high risk, 0 at medium risk and 42 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 51 homes the Environment Agency counts, 0 are in areas at high risk, 0 medium, 42 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: the postcode centre is in flood zone 2. Zone 2 is between 0.1% and 1% a year from rivers (0.1% and 0.5% from the sea), ignoring defences.

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 addresses are about 29 m above sea level.

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
SG12 8JN100%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 stationsSt Margarets (Herts) 351,000 journeys in 2024–25190 m
Rye House 436,000 journeys in 2024–251.9 km (1.2 miles)
Roydon 133,000 journeys in 2024–252.6 km (1.6 miles)
Bus stops5 stops within 400 m (0.2 miles), 12 within 800 m (0.5 miles); nearest St Margaret's Railway Station St Margarets160 m
Bus or coach stationBus Station Hertford5.6 km (3.5 miles)
Car parks2 within 800 m (0.5 miles); nearest St Margarets Station Car Park190 m
EV charging pointsMFG Charging Station2.8 km (1.7 miles)
Airport with scheduled flightsLondon Stansted Airport STN19.4 km (12 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 surgeriesHailey View Surgery1.7 km (1 mile)
Pharmacies1 pharmacies within 1.6 km (1 mile); nearest The Village Pharmacy210 m
NHS dentists1 practices within 1.6 km (1 mile); nearest Dental Surgery460 m (0.3 miles)
HospitalThe Princess Alexandra Hospital6.1 km (3.8 miles)
Police stationHoddesdon Police Station3.7 km (2.3 miles)
Cash machinesATM2.2 km (1.4 miles)

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 Unnamed 1.2 ha60 m
Play area4 within 800 m (0.5 miles); nearest Unnamed 140 m²300 m
Playing field1 within 800 m (0.5 miles); nearest St Margaretsbury 6.9 ha400 m (0.2 miles)
Allotments2 within 800 m (0.5 miles); nearest Unnamed 3,620 m²320 m

Within 800 m (0.5 miles): 3 parks and gardens, 2.4 hectares in all.

Landmarks

The nearest historic landmark is Church of St Margarets (Church of England), a listed building (Grade II*), 200 m west. 58 listed buildings are within 1 km (0.6 miles), 6 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Church of St Margarets (Church of England)Listed building, Grade II*200 m west
Stanstead HallListed building, Grade II*450 m (0.3 miles) north-east
Red Lion Public HouseListed building, Grade II*500 m (0.3 miles) north-east
The Clock HouseListed building, Grade II*530 m (0.3 miles) north-east
Amwell Grove and Amwell PoolRegistered park or garden, Grade II1.5 km (0.9 miles) north-west
Rye House moated enclosure and gatehouseScheduled monument1.7 km (1.1 miles) south
Stanstead BuryRegistered park or garden, Grade II2.1 km (1.3 miles) east
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
Folly GroveWood870 m (0.5 miles) north-west
Coldharbour WoodWood1.5 km (0.9 miles) east
Easneye WoodWood1.9 km (1.2 miles) north
The GroveWood2 km (1.2 miles) east
Thrifts LakeLake or reservoir2.3 km (1.4 miles) north-west
Brokengall HillHill2.6 km (1.6 miles) north

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)9.24010
Fine particles (PM2.5)7.3205
Particles (PM10)11.94015

All three are within the UK legal limits; PM2.5 is 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 59317
Under 554935

3 of the street's 52 addresses are modelled at 55 dB or more from road traffic, and 17 from railways, 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 East Hertfordshire: see them on the East Hertfordshire 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
St Andrew's Church of England Voluntary Controlled Primary SchoolPrimary3–11550 m (0.3 miles) No published inspection
St John the Baptist Voluntary Aided Church of England Primary SchoolPrimary4–111.1 km (0.7 miles) No overall grade (Dec 2024, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good
The Cranbourne Primary SchoolPrimary4–111.3 km (0.8 miles) Good (Feb 2020, overall grade under the previous framework)
The John Warner SchoolSecondary11–181.3 km (0.8 miles) Inadequate (Oct 2022, overall grade under the previous framework)
Forres Primary AcademyPrimary5–111.7 km (1.1 miles) Requires improvement (Oct 2022, overall grade under the previous framework)
Rye Park Nursery SchoolNursery2–51.9 km (1.2 miles) No published inspection
Roselands Primary SchoolPrimary5–111.9 km (1.2 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
Jolly Fisherman SG12 8DHPub/bar/nightclub130 m5 Very good8 May 2024
Community Alliance For Broxbourne And East Herts SG12 8GASchool/college/university160 mAwaiting inspection
Bridge Shop SG12 8AQRetailers - other210 mExempt
La Pizzeria & Kebab SG12 8AGTakeaway/sandwich shop280 m4 Good19 Jun 2025
The Oak SG12 8AGPub/bar/nightclub280 m5 Very good20 Dec 2024
Kebab King SG12 8AGTakeaway/sandwich shop280 mAwaiting inspection
CO-OP Store SG12 8AGRetailers - supermarkets/hypermarkets280 m4 Good11 Sep 2023
Poms Sweets Ltd SG12 8AGRetailers - other310 m5 Very good25 Aug 2023
Wine World SG12 8ASRetailers - other310 m4 Good6 Jan 2012
Willowthorpe SG12 8ASHospitals/Childcare/Caring Premises310 m5 Very good10 Mar 2026
Khunnai Thai Restaurant SG12 8ASRestaurant/Cafe/Canteen310 m5 Very good30 May 2025
More Than Bloons SG12 8ASRetailers - other330 m5 Very good25 Mar 2026
St Margaretsbury Sports And Social Club SG12 8EHPub/bar/nightclub340 m4 Good18 Apr 2007
SMFC Pitch-Side Snack Bar SG12 8EHRestaurant/Cafe/Canteen340 m5 Very good19 May 2024
Amwell View School SG12 8EHSchool/college/university340 m5 Very good6 Mar 2026

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.

42 recorded crimes by category
CategoryCrimes
Violence and sexual offences17
Other theft7
Anti-social behaviour7
Drugs4
Criminal damage and arson3
Vehicle crime2
Public order2

Most of these are attached to: On or near Station Road (12); On or near Sanville Gardens (7); On or near Cresset Close (7); On or near Louisville Close (5); On or near St Margarets (3).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the Output Area (a small census area of about 125 households) that this street's postcodes are in: 136 residents in 76 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 age4140
Children under 1510%17%
Aged 65 and over19%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)64%61%
Owned outright29%33%
Shared ownership0%1%
Social rented5%17%
Private rented31%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work74%57%
Unemployment (of those working or looking for work)3%6%
Retired (of adults)14%22%
Long-term sick or disabled (of adults)3%4%
Work mainly from home (of those in work)32%32%
Travel to work by car or van55%48%
By train, Underground, metro or tram8%4%
By any public transport, including bus10%8%
On foot or by bicycle1%10%
Work within 10 km (6 miles) of home (of those who travel to work)63%65%
Work 30 km (19 miles) or more away14%8%

Education and languages

Around this streetEngland
Degree or other higher qualification, Level 4+ (of adults)36%34%
No qualifications12%18%
Apprenticeship as highest qualification5%5%
Main language English (aged 3 and over)99%91%
Cannot speak English well or at all0%2%

Deprivation

The neighbourhood around this street is in decile 9 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

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.

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

Rush Close · Sanville Gardens · Cresset Close · Riverside · Louisville Close · Orchard Close · Hoddesdon Road · South Street · Lawrence Avenue · River Meads · The Willows · Kingfisher Close

All the streets in SG12 and across East Hertfordshire.

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.