Galfrid Close Seaham, County Durham
24 addresses across 2 postcodes (SR7), about 120 m long, classed as a local road. USRN 11908713.
- Sales: 22 recorded sales since 1995; in 2026 the median was £147,000 across 1 sale.
- Prices and rents: A typical home in County Durham cost £140,788 in August 2026 (+4.9% on a year); private rents averaged £653 a month.
- Energy: 12 homes have an energy certificate (C: 4, D: 6, E: 1, F: 1).
- 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.
- Coal mining: It is in a coalfield, in a low risk area.
- Storm overflows: 3 storm overflows within 1 km (0.6 miles) spilled 61 times (201 hours) in 2025.
- 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.
- Council tax: Most homes around it are in council tax band B; Band D in County Durham costs £2,622 a year in 2026-27.
- Broadband: Gigabit broadband is available to 100% of premises.
- Transport: The nearest railway station is Seaham, about 1.7 km (1.1 miles) away in a straight line.
- Green space: The nearest park or garden is about 320 m away.
- Air: Background air pollution in 2024 was 6.9 µg/m³ of nitrogen dioxide and 5.7 of PM2.5, within UK legal limits.
- Height: Its addresses are 97 to 101 m above sea level.
- Noise: 17 of its 24 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is The New Seaham Medical Group, about 560 m (0.3 miles) away, with 2 practices within 1.6 km (1 mile).
- People: About 580 people lived in the census areas around it in 2021; 88% of households owned their home and 29% of adults held a degree or other higher qualification.
- Crime: 39 crimes were recorded within 250 m between September 2025 and August 2026, most often violence and sexual offences.
- Road safety: No collisions in which someone was hurt were reported on and around it in 2021 to 2025.
£9.99 The Street Dossier Full Report for a home on Galfrid 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 |
|---|---|---|---|---|
| 2026 | 1 | £147,000 | £147,000 | £147,000 |
| 2025 | 2 | £147,000 | £127,000 | £167,000 |
| 2022 | 1 | £135,000 | £135,000 | £135,000 |
| 2015 | 1 | £95,000 | £95,000 | £95,000 |
| 2014 | 1 | £106,000 | £106,000 | £106,000 |
| 2011 | 1 | £92,500 | £92,500 | £92,500 |
| 2007 | 2 | £133,750 | £119,000 | £148,500 |
| 2005 | 1 | £138,500 | £138,500 | £138,500 |
| 2004 | 2 | £95,000 | £93,500 | £96,500 |
| 2002 | 1 | £82,500 | £82,500 | £82,500 |
| 2001 | 1 | £55,000 | £55,000 | £55,000 |
| 2000 | 3 | £63,000 | £47,000 | £63,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 13 Jul 2007 | 2 SR7 8LA | Semi-detached | £119,000 | |
| 10 Sep 2004 | 2 SR7 8LA | Semi-detached | £93,500 | |
| 29 Sep 1995 | 2 SR7 8LA | Semi-detached | £42,500 | |
| 14 Sep 2001 | 3 SR7 8LA | Semi-detached | £55,000 | |
| 28 May 2026 | 4 SR7 8LA | Semi-detached | £147,000 | |
| 4 Mar 2011 | 4 SR7 8LA | Semi-detached | £92,500 | |
| 31 Mar 2025 | 5 SR7 8LA | Semi-detached | £167,000 | |
| 4 Jul 2025 | 6 SR7 8LA | Semi-detached | £127,000 | |
| 7 Jul 2000 | 7 SR7 8LA | Semi-detached | £63,000 | |
| 23 Aug 1996 | 7 SR7 8LA | Semi-detached | £54,000 | |
| 28 Jun 1996 | 7 SR7 8LA | Semi-detached | £50,000 | |
| 30 Nov 2015 | 8 SR7 8LA | Semi-detached | £95,000 | |
| 27 Jun 2007 | 9 SR7 8LA | Detached | £148,500 | |
| 31 Mar 2005 | 9 SR7 8LA | Detached | £138,500 | |
| 14 Jun 2002 | 9 SR7 8LA | Detached | £82,500 | |
| 5 May 2000 | 9 SR7 8LA | Detached | £63,000 | |
| 12 Jun 1998 | 9 SR7 8LA | Detached | £58,000 | |
| 24 Jan 2014 | 19 SR7 8LA | Semi-detached | £106,000 | |
| 4 Jun 2004 | 19 SR7 8LA | Semi-detached | £96,500 | |
| 28 Jun 2000 | 19 SR7 8LA | Semi-detached | £47,000 | |
| 6 Apr 2021 | 20 SR7 8LA | Detached | £173,000 | Not a standard sale (repossession, buy-to-let or transfer). |
| 30 Sep 2022 | 25 SR7 8LA | Semi-detached | £135,000 |
House prices and rents in County Durham
A typical home in County Durham cost £140,788 in August 2026, 4.9% more than a year before. That is 19% more than five years earlier and 43% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £238,105 |
| Semi-detached | £141,657 |
| Terraced | £117,275 |
| Flat or maisonette | £79,042 |
| Bought by a first-time buyer | £125,556 |
Private renters in County Durham paid £653 a month on average in September 2026, 6.1% more than a year before. That is 34% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £459 |
| Two bedrooms | £582 |
| Three bedrooms | £697 |
| Four or more bedrooms | £1,004 |
Energy performance certificates
12 homes with a current certificate; median floor area 71 m². Most common: House, semi-detached (10); Bungalow, detached (2). Built: 1976-1982 (4); 1983-1990 (4); 1967-1975 (3). Tenure at assessment: owner-occupied (11).
Each home's certificates and sales (12 addresses)
- 4 Galfrid Close, Dalton-le-Dale
- 5 Galfrid Close, Dalton-le-Dale
- 6 Galfrid Close, Dalton-le-Dale
- 7, Galfrid Close, Dalton-le-Dale
- 8 Galfrid Close, Dalton-le-Dale
- 9, Galfrid Close, Dalton-le-Dale
- 11, Galfrid Close, Dalton-le-Dale
- 15, Galfrid Close, Dalton-le-Dale
- 18, Galfrid Close, Dalton-le-Dale
- 19, Galfrid Close, Dalton-le-Dale
- 20, Galfrid Close, Dalton-le-Dale
- 25 Galfrid Close, Dalton-le-Dale
Gas and electricity use
Homes with gas used 17,023 kWh of it on average in 2024, 52% more than the district's 11,210 kWh, and 3,263 kWh of electricity, 22% more than the district's 2,666 kWh. There are gas meters for about 100% of the homes.
| Postcode | Electricity meters | Typical electricity | Gas meters | Typical gas |
|---|---|---|---|---|
| SR7 8LA | 22 | 2,399 kWh | 22 | 8,334 kWh |
| SR7 8LB | 61 | 2,642 kWh | 61 | 19,679 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 SR7.
Council tax
What each band costs in County Durham in 2026-27: Band D £2,622 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,748 | £2,039 | £2,331 | £2,622 | £3,205 | £3,788 | £4,370 | £5,244 |
Homes by band in the neighbourhood around this street: most are in band B (42% of about 530 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.
Energy projects nearby
4 energy projects near the street's postcodes.
| Project | Kind | Size | Stage | Distance |
|---|---|---|---|---|
| South Sharpley Wind Farm (Revised) County Durham PLAN/2008/0355 | Wind 3 turbines | 7.5 MW | Operational Jan 2013 | 2.3 km (1.4 miles) |
| High Sharpley Wind Farm County Durham 02/221 | Wind 2 turbines | 2.6 MW | Operational Dec 2006 | 2.3 km (1.4 miles) |
| Great Eppleton Wind Farm | Wind 4 turbines | 3 MW | Operational Apr 1997 | 3.6 km (2.2 miles) |
| Great Eppleton Farm Repowering Sunderland 07/00086/FUL | Wind 4 turbines | 8.2 MW | Operational Mar 2010 | 3.6 km (2.2 miles) |
Planned projects can change or not go ahead; search the planning authority's applications by the reference shown for the plans, conditions and any objections. Construction brings traffic for some months; once built, solar farms and batteries are usually quiet, while turbines and waste plants can be seen or heard further away.
Roadworks
Finished in the last three months
- 16 September 2026 to 16 October 2026: NORTHERN GAS NETWORKS, Utility repair and maintenance works, give and take, on the footway, carriageway (major works)
Flood risk
Rivers, the sea or surface water: in this street's postcodes, 0 addresses are in areas at high risk, 1 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.
| Postcode | Planning zone | Addresses at high / medium / low risk | Groundwater |
|---|---|---|---|
| SR7 8LA | not in 2 or 3 | 0 / 1 / 2 | unlikely |
| SR7 8LB | not in 2 or 3 | 0 / 0 / 2 | 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
3 storm overflows within 1 km (0.6 miles) of the street's postcodes spilled 61 times, for 201 hours in all, in 2025. They discharge into Dalton Burn, Scawpie Dean, Dawdon Dene Beck.
| Overflow | Into | Spills | Hours | Distance |
|---|---|---|---|---|
| Sea View Storage Tank Northumbrian Water | Dalton Burn | 6 | 5 | 770 m (0.5 miles) |
| Cso at Warkworth Crescent Northumbrian Water | Scawpie Dean | 10 | 14 | 780 m (0.5 miles) |
| Dalton-le-Dale Cso Northumbrian Water | Dawdon Dene Beck | 45 | 183 | 870 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
2 of the street's 2 postcodes are in a coalfield, in a low risk area: coal was mined in the area, but no workings shallow enough to matter for building are recorded.
Conveyancers usually still order a coal mining search (CON29M) for a home in a coalfield.
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
No historic landfill site is within 500 m (0.3 miles) of the street's postcodes.
Height above sea level
The street's 24 addresses are between 97 m and 101 m above sea level (100 m on average).
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| SR7 8LA | 100% | 91% | 100% | 0% |
| SR7 8LB | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Seaham 165,000 journeys in 2024–25 | 1.7 km (1.1 miles) |
| Horden 165,000 journeys in 2024–25 | 8.3 km (5.2 miles) | |
| Sunderland 709,000 journeys in 2024–25 | 8.4 km (5.2 miles) | |
| Bus stops | 4 stops within 400 m (0.2 miles), 15 within 800 m (0.5 miles); nearest Dalton Heights Roundabout New Seaham | 90 m |
| Bus or coach station | Interchange Seaham | 2.5 km (1.5 miles) |
| Car parks | Seaham Hall Beach Car Park | 2.7 km (1.7 miles) |
| EV charging points | 1 within 1.6 km (1 mile); nearest Be.EV Charging Station | 1.3 km (0.8 miles) |
| Airport with scheduled flights | Newcastle International Airport NCL | 31 km (19 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 2 practices within 1.6 km (1 mile); nearest The New Seaham Medical Group Good Jan 2023 | 560 m (0.3 miles) |
| Pharmacies | 2 pharmacies within 1.6 km (1 mile); nearest J&J Pharmacy | 580 m (0.4 miles) |
| NHS dentists | Seaham Smiles | 1.7 km (1.1 miles) |
| Hospital | Cherry Knowle Hospital | 3.8 km (2.3 miles) |
| Care homes | 5 homes within 1.6 km (1 mile); nearest The Daltons Good Oct 2018 | 500 m (0.3 miles) |
| Police station | Durham Police - Seaham Police Office | 1.5 km (0.9 miles) |
| Cash machines | Morrisons Daily - Seaham, Seaham | 900 m (0.6 miles) |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 1 within 800 m (0.5 miles); nearest Unnamed 980 m² | 320 m |
| Play area | 3 within 800 m (0.5 miles); nearest Unnamed 130 m² | 180 m |
| Playing field | Unnamed 7.8 ha | 1 km (0.6 miles) |
| Allotments | Deneside School Allotments 1.1 ha | 860 m (0.5 miles) |
Within 800 m (0.5 miles): 1 park or garden, 0.1 hectares in all.
Landmarks
The nearest historic landmark is Church of St Andrew, a listed building (Grade II*), 520 m (0.3 miles) south. 2 listed buildings are within 1 km (0.6 miles), 1 of them Grade II*.
| Name | What it is | From the middle of the street |
|---|---|---|
| Church of St Andrew | Listed building, Grade II* | 520 m (0.3 miles) south |
| Dalden Tower: a medieval fortified manor house and related earthworks | Scheduled monument | 1.3 km (0.8 miles) east |
| Name | What it is | From the middle of the street |
|---|---|---|
| Dawdon Dene | Valley | 740 m (0.5 miles) east |
| Dalton Dene | Valley | 860 m (0.5 miles) south-west |
| Ewe Hill | Hill | 1.2 km (0.7 miles) east |
| Hesledon Plantation | Wood | 1.5 km (0.9 miles) south-east |
| South Dock | Lake or reservoir | 2.7 km (1.7 miles) east |
| Seaham Beach | Beach | 2.8 km (1.7 miles) north-east |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 6.9 | 40 | 10 |
| Fine particles (PM2.5) | 5.7 | 20 | 5 |
| Particles (PM10) | 11.1 | 40 | 15 |
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
| Level | Road traffic | Railways |
|---|---|---|
| 55 to 59 | 17 | 0 |
| Under 55 | 7 | 24 |
17 of the street's 24 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 County Durham: see them on the County Durham page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| Seaview Primary School | Primary | 2–11 | 770 m (0.5 miles) | Good (May 2024, overall grade under the previous framework) | 64% at the expected standard in reading, writing and maths, 7% at the higher standard (2025; 73% in 2024 and 74% in 2023) |
| Westlea Primary School | Primary | 3–11 | 1 km (0.6 miles) | Good (Nov 2022, overall grade under the previous framework) | 77% at the expected standard in reading, writing and maths, 9% at the higher standard (2025; 69% in 2024 and 66% in 2023) |
| Seaham High School | Secondary | 11–16 | 1.1 km (0.7 miles) | Good (Jul 2023, overall grade under the previous framework) | GCSE 2026 (provisional): Attainment 8 47.8 (45.8 in 2025 and 43.0 in 2024); 47.8% grade 5+ in English and maths |
| St Cuthbert's Catholic Primary School, Seaham Roman Catholic | Primary | 4–11 | 1.3 km (0.8 miles) | No published inspection | 75% at the expected standard in reading, writing and maths, 17% at the higher standard (2025; 84% in 2024 and 83% in 2023) |
| New Seaham Academy | Primary | 4–11 | 1.6 km (1 mile) | Good (Oct 2022, overall grade under the previous framework) | 94% at the expected standard in reading, writing and maths, 29% at the higher standard (2025; 83% in 2024 and 83% in 2023) |
| Ribbon School | Primary | 3–11 | 1.7 km (1.1 miles) | Good (Jan 2023, overall grade under the previous framework) | 64% at the expected standard in reading, writing and maths, 11% at the higher standard (2025; 66% in 2024 and 65% in 2023) |
| Seaham Trinity Primary School | Primary | 3–11 | 1.9 km (1.2 miles) | No published inspection | 54% at the expected standard in reading, writing and maths, 12% at the higher standard (2025; 36% in 2024 and 62% 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
2 nurseries, pre-schools and clubs within 1.5 km (0.9 miles), the nearest 480 m (0.3 miles) from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Tots 'R' Us Nursery SR7 8DX | Sessional day care | 21 | Outstanding (Nov 2022, overall grade under the previous framework) | 480 m (0.3 miles) |
| Harbour View Kindergarten SR7 0BN | Full day care | 80 | Not inspected yet | 1.3 km (0.8 miles) |
Ofsted also registers 167 childminders and 16 home childcarers (nannies) in Durham. 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 |
|---|---|---|---|---|
| Jubilee Off Licence & Food Store SR7 8EU | Retailers - other | 230 m | 5 Very good | 21 Jan 2026 |
| New Seaham Esso Service Station SR7 8ER | Retailers - other | 260 m | 5 Very good | 9 Dec 2024 |
| Asda Express Subway New Seaham SR7 8ER | Takeaway/sandwich shop | 260 m | 5 Very good | 9 Dec 2024 |
| The Mallard SR7 8EP | Pub/bar/nightclub | 370 m | 5 Very good | 18 Feb 2025 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 11 |
| Anti-social behaviour | 8 |
| Criminal damage and arson | 5 |
| Vehicle crime | 4 |
| Other theft | 4 |
| Drugs | 2 |
| Public order | 2 |
| Burglary | 2 |
| Other crime | 1 |
Most of these are attached to: On or near Belton Close (14); On or near Watson Close (8); On or near Walton Avenue (6); On or near Galfrid Close (4); On or near Bowes Avenue (3).
Road safety
No collisions in which someone was hurt were reported on and around the street in 2021 to 2025.
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 | 55 | 40 |
| Children under 15 | 9% | 17% |
| Aged 65 and over | 27% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 88% | 61% |
| Owned outright | 63% | 33% |
| Shared ownership | 0% | 1% |
| Social rented | 1% | 17% |
| Private rented | 11% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 52% | 57% |
| Unemployment (of those working or looking for work) | 3% | 6% |
| Retired (of adults) | 33% | 22% |
| Long-term sick or disabled (of adults) | 4% | 4% |
| Work mainly from home (of those in work) | 25% | 32% |
| Travel to work by car or van | 65% | 48% |
| By train, Underground, metro or tram | 0% | 4% |
| By any public transport, including bus | 3% | 8% |
| On foot or by bicycle | 5% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 62% | 65% |
| Work 30 km (19 miles) or more away | 6% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 29% | 34% |
| No qualifications | 16% | 18% |
| Apprenticeship as highest qualification | 9% | 5% |
| Main language English (aged 3 and over) | 100% | 91% |
| Cannot speak English well or at all | 0% | 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
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
Escallond Drive · Queens Avenue · Jubilee Avenue · Beldon Close · Doreen Avenue · Waring Terrace · Bowes Avenue · Watson Close · Stockton Road · Carrhouse Walk · Walton Avenue · Sidmouth Close
All the streets in SR7 and across County Durham.
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.