St Andrews Close Biggleswade, Central Bedfordshire
6 addresses across 1 postcode (SG18), about 40 m long, classed as a local road. USRN 25200397.
- Sales: 4 recorded sales since 1995; in 2021 the median was £462,500 across 1 sale.
- Prices and rents: A typical home in Central Bedfordshire cost £355,263 in August 2026 (+0.1% on a year); private rents averaged £1,258 a month.
- Energy: 4 homes have an energy certificate (D: 4).
- Flood: No address on its postcodes is in an area at high or medium risk of flooding from rivers, the sea or surface water.
- Recorded floods: 1 recorded flood covered its postcode centre, most recently in March 1947.
- Storm overflows: 2 storm overflows within 1 km (0.6 miles) spilled 2 times (5 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.
- Traffic: The busiest counted road within 500 m (0.3 miles), the A6001, carries 12,460 motor vehicles a day on average (2025).
- Council tax: Most homes around it are in council tax band B; Band D in Central Bedfordshire costs £2,516 a year in 2026-27.
- Broadband: Gigabit broadband is available to 100% of premises.
- Transport: The nearest railway station is Biggleswade, about 410 m (0.3 miles) away in a straight line.
- Green space: The nearest park or garden, Franklin Recreation Ground, is about 110 m away.
- Air: Background air pollution in 2024 was 7.3 µg/m³ of nitrogen dioxide and 7.2 of PM2.5, within UK legal limits.
- Height: It is about 28 m above sea level.
- Noise: 4 of its 6 addresses are modelled at 55 dB or more from road traffic.
- Doctors: The nearest GP surgery is Saffron Health Partnership, about 260 m away, with 2 practices within 1.6 km (1 mile).
- People: About 290 people lived in the census areas around it in 2021; 53% of households owned their home and 29% of adults held a degree or other higher qualification.
- Crime: 155 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.
£9.99 The Street Dossier Full Report for a home on St Andrews 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 |
|---|---|---|---|---|
| 2021 | 1 | £462,500 | £462,500 | £462,500 |
| 2019 | 1 | £605,000 | £605,000 | £605,000 |
| 2005 | 1 | £245,000 | £245,000 | £245,000 |
| 2004 | 1 | £225,000 | £225,000 | £225,000 |
| Date | Address | Type | Price | Notes |
|---|---|---|---|---|
| 10 Feb 2004 | 1 SG18 8BB | Detached | £225,000 | |
| 13 Sep 2021 | 3 SG18 8BB | Detached | £462,500 | |
| 27 Apr 2005 | 5 SG18 8BB | Detached | £245,000 | |
| 13 Nov 2019 | 7 SG18 8BB | Detached | £605,000 |
House prices and rents in Central Bedfordshire
A typical home in Central Bedfordshire cost £355,263 in August 2026, 0.1% more than a year before. That is 15% more than five years earlier and 28% more than ten years earlier.
| Home | Typical price, Aug 2026 |
|---|---|
| Detached | £603,864 |
| Semi-detached | £376,156 |
| Terraced | £299,898 |
| Flat or maisonette | £173,335 |
| Bought by a first-time buyer | £299,948 |
Private renters in Central Bedfordshire paid £1,258 a month on average in September 2026, 4.4% more than a year before. That is 30% more than five years earlier.
| Home | Average rent a month, Sep 2026 |
|---|---|
| One bedroom | £870 |
| Two bedrooms | £1,105 |
| Three bedrooms | £1,386 |
| Four or more bedrooms | £2,057 |
Energy performance certificates
4 homes with a current certificate; median floor area 138 m². Most common: House, detached (3); House, semi-detached (1). Built: 1950-1966 (2); 1967-1975 (2). Tenure at assessment: owner-occupied (3); rented (private) (1).
Each home's certificates and sales (4 addresses)
Gas and electricity use
Homes with gas used 16,207 kWh of it on average in 2024, 65% more than the district's 9,831 kWh, and 2,728 kWh of electricity, 22% less than the district's 3,502 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 SG18.
Council tax
What each band costs in Central Bedfordshire in 2026-27: Band D £2,516 a year on average, including the police, fire and any county and parish charges.
| A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|
| £1,677 | £1,957 | £2,237 | £2,516 | £3,075 | £3,634 | £4,194 | £5,032 |
Homes by band in the neighbourhood around this street: most are in band B (39% of about 1,200 homes).
Planning and heritage
- Conservation area: yes, Biggleswade Conservation Area. Extensions, demolition, some windows and doors, and work on trees need consent.
- 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)
- Houghton Lodge, Ampthill, not permissioned (160 m)
- Biggleswade Town Centre: up to 9 homes, permissioned (240 m)
- Land r/o 33-57 Shortmead Street, Biggleswade: up to 30 homes, permissioned (440 m (0.3 miles))
Energy projects nearby
1 energy project near the street's postcodes.
| Project | Kind | Size | Stage | Distance |
|---|---|---|---|---|
| Langford Wind Farm Central Bedfordshire 09/00118/FULL | Wind 10 turbines | 20 MW | Operational Jan 2014 | 3.3 km (2.1 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
No street works under way, planned or finished in the last three months on this street, in permits up to 31 October 2026.
Flood risk
No address in this street's postcodes is in an area at high, medium or low risk of flooding from rivers, the sea or surface water. The rest are in areas at very low risk: less than a 0.1% (1 in 1,000) chance a year.
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
1 recorded flood covered the centre of this street's postcodes, most recently in March 1947.
| When | Flood | Source and cause |
|---|---|---|
| 14 Mar 1947 | Not named | Not recorded |
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 2 times, for 5 hours in all, in 2025. They discharge into The River Ivel, River Ivel.
| Overflow | Into | Spills | Hours | Distance |
|---|---|---|---|---|
| Biggleswade Dark Lane Cso Anglian Water | The River Ivel | 0 | 0 | 430 m (0.3 miles) |
| Biggleswade - Shortmead St Tps Anglian Water | River Ivel | 2 | 5 | 820 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 with radon potential up to 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 the square 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 addresses are about 28 m above sea level.
Broadband
| Postcode | Superfast (30 Mbit/s+) | Ultrafast (300 Mbit/s+) | Gigabit | Below 10 Mbit/s |
|---|---|---|---|---|
| SG18 8BB | 100% | 100% | 100% | 0% |
Getting around
| Nearest | Distance | |
|---|---|---|
| Railway stations | Biggleswade 895,000 journeys in 2024–25 | 410 m (0.3 miles) |
| Sandy 679,000 journeys in 2024–25 | 4.4 km (2.7 miles) | |
| Arlesey 688,000 journeys in 2024–25 | 6.7 km (4.1 miles) | |
| Bus stops | 10 stops within 400 m (0.2 miles), 29 within 800 m (0.5 miles); nearest Teal Road Biggleswade | 120 m |
| Bus or coach station | Interchange Biggleswade | 380 m |
| Car parks | 2 within 800 m (0.5 miles); nearest Apcoa | 370 m |
| EV charging points | 2 within 1.6 km (1 mile); nearest bp pulse Charging Station | 620 m (0.4 miles) |
| Airport with scheduled flights | London Luton Airport LTN | 24.5 km (15 miles) |
Local services
| Nearest | Distance | |
|---|---|---|
| GP surgeries | 2 practices within 1.6 km (1 mile); nearest Saffron Health Partnership Good Oct 2016 | 260 m |
| Pharmacies | 3 pharmacies within 1.6 km (1 mile); nearest Biggleswade Pharmacy | 130 m |
| NHS dentists | 3 practices within 1.6 km (1 mile); nearest Dental Surgery | 150 m |
| Hospital | Biggleswade Hospital Spring House | 1.6 km (1 mile) |
| Care homes | 2 homes within 1.6 km (1 mile); nearest Beaumont Park Nursing and Residential Home Requires improvement Jun 2023 | 320 m |
| Police station | Biggleswade Police Station | 320 m |
| Cash machines | 1 machine within 800 m (0.5 miles); nearest Natwest | 130 m |
Parks and green space
| Nearest | Distance | |
|---|---|---|
| Park or garden | 4 within 800 m (0.5 miles); nearest Franklin Recreation Ground 8,100 m² | 110 m |
| Play area | 6 within 800 m (0.5 miles); nearest Unnamed 1,090 m² | 120 m |
| Playing field | Fairfield Sports Ground 3.5 ha | 830 m (0.5 miles) |
| Allotments | Unnamed 2.8 ha | 1.6 km (1 mile) |
Within 800 m (0.5 miles): 4 parks and gardens, 1.6 hectares in all.
Landmarks
The nearest historic landmark is Church of St Andrew, a listed building (Grade II*), 130 m north. 48 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* | 130 m north |
| A ringwork and bailey castle, ring ditch and enclosures east of Brookland Farm | Scheduled monument | 420 m (0.3 miles) west |
| Holme Mill Iron Bridge | Scheduled monument | 1.5 km (0.9 miles) south |
| Moated site, near Hill House, Old Warden | Scheduled monument | 1.7 km (1 mile) west |
| Name | What it is | From the middle of the street |
|---|---|---|
| Ash Covert | Wood | 1.7 km (1 mile) south-west |
| Brickclamp Covert | Wood | 3 km (1.9 miles) west |
| Bunker's Hill | Hill | 3.4 km (2.1 miles) north |
| Palmer's Spinney | Wood | 3.4 km (2.1 miles) west |
| Sandy Warren | Wood | 3.6 km (2.2 miles) north |
| Bath Ponds | Lake or reservoir | 3.8 km (2.4 miles) west |
Air quality
| Pollutant | Here | UK limit | WHO guideline |
|---|---|---|---|
| Nitrogen dioxide (NO2) | 7.3 | 40 | 10 |
| Fine particles (PM2.5) | 7.2 | 20 | 5 |
| Particles (PM10) | 13.4 | 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 |
|---|---|---|
| 65 to 69 | 1 | 0 |
| 60 to 64 | 1 | 0 |
| 55 to 59 | 2 | 0 |
| Under 55 | 2 | 6 |
4 of the street's 6 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 Central Bedfordshire: see them on the Central Bedfordshire page.
Nearest schools
| School | Phase | Ages | Distance | Inspection | Exam results |
|---|---|---|---|---|---|
| St Andrew's CofE VC Primary School Church of England | Primary | 4–11 | 450 m (0.3 miles) | Report card (Mar 2026): Curriculum and teaching: Needs attention; Achievement: Needs attention; Attendance and behaviour: Expected standard; Personal development and wellbeing: Expected standard; Inclusion: Expected standard; Leadership and governance: Needs attention; Early years: Expected standard; Safeguarding standards: Met | None published |
| Lawnside Academy | Primary | 5–11 | 760 m (0.5 miles) | Good (Mar 2023, overall grade under the previous framework) | None published |
| Biggleswade Academy | Primary | 2–11 | 1.1 km (0.7 miles) | Good (May 2024, overall grade under the previous framework) | 57% at the expected standard in reading, writing and maths, 1% at the higher standard (2025; 72% in 2024 and 67% in 2023) |
| Stratton School | Secondary | 11–18 | 1.1 km (0.7 miles) | No overall grade (Apr 2025, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good | GCSE 2026 (provisional): Attainment 8 41.5 (38.9 in 2025 and 38.6 in 2024); 35.3% grade 5+ in English and maths A level 2025: average grade C; 8% AAB or better; progress average |
| Edward Peake CofE VC School Church of England | Secondary | 11–16 | 1.6 km (1 mile) | No overall grade (Jan 2025, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Good; Personal development: Good; Leadership and management: Good | 4% at the expected standard in reading, writing and maths, 0% at the higher standard (2025; 42% in 2024 and 48% in 2023) GCSE figures withheld (2026, provisional) |
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
8 nurseries, pre-schools and clubs within 1.5 km (0.9 miles), the nearest 100 m from the middle of the street.
| Provider | Kind | Places | Latest inspection | Distance |
|---|---|---|---|---|
| Brambley Tots Day Nursery SG18 8AZ | Full day care | 64 | Good (Jan 2023, overall grade under the previous framework) | 100 m |
| Kip McGrath Biggleswade SG18 0AT | Full day care (over fives) | Not inspected yet | 320 m | |
| Rainbow Pre-School & Extended Services SG18 0LY | Full day care | 50 | Outstanding (Nov 2022, overall grade under the previous framework) | 460 m (0.3 miles) |
| Rising Stars Wrap Around Clubs Ltd SG18 0LX | Out-of-school day care | 20 | Not inspected yet | 760 m (0.5 miles) |
| Lawnside Premier Holiday Camp SG18 0LX | Out-of-school day care | 20 | Not inspected yet | 760 m (0.5 miles) |
| Junior Adventures Group @ Biggleswade Academy SG18 8JU | Out-of-school day care | 136 | Not inspected yet | 1 km (0.6 miles) |
| Theatretrain Biggleswade SG18 8JU | Out-of-school day care (over fives) | Not inspected yet | 1 km (0.6 miles) | |
| Busy Bees at Biggleswade Saxon Centre SG18 8AT | Full day care | 112 | Good (Feb 2024, overall grade under the previous framework) | 1.5 km (0.9 miles) |
Ofsted also registers 281 childminders and 49 home childcarers (nannies) in Central Bedfordshire. 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 |
|---|---|---|---|---|
| Biggleswade & District Conservative Club SG18 8BA | Pub/bar/nightclub | 50 m | 4 Good | 19 Feb 2026 |
| Sports Direct SG18 8AX | Retailers - other | 80 m | Exempt | |
| USA Fried Chicken & Chippy SG18 8AP | Takeaway/sandwich shop | 90 m | 5 Very good | 7 Nov 2025 |
| Papa Johns SG18 0JL | Restaurant/Cafe/Canteen | 90 m | 5 Very good | 1 Jun 2026 |
| Savers Health & Beauty Ltd SG18 8AP | Retailers - other | 100 m | Exempt | |
| Brambley Tots Day Nursery SG18 8AZ | Hospitals/Childcare/Caring Premises | 100 m | 5 Very good | 8 Apr 2026 |
| The Hut SG18 8AZ | Mobile caterer | 100 m | 5 Very good | 20 Jan 2026 |
| Jumbo Chinese Takeaway SG18 8AX | Takeaway/sandwich shop | 110 m | 5 Very good | 10 Aug 2026 |
| Howell's Newsagents SG18 8AX | Retailers - other | 110 m | Exempt | |
| Goodies SG18 8AX | Restaurant/Cafe/Canteen | 110 m | 3 Generally satisfactory | 2 Sep 2025 |
| Oakley Stores SG18 8AX | Retailers - other | 110 m | 4 Good | 18 Aug 2026 |
| The Courtyard Centre SG18 0JA | Restaurant/Cafe/Canteen | 110 m | 5 Very good | 16 Jan 2025 |
| Raj Bengal SG18 8BE | Takeaway/sandwich shop | 110 m | 5 Very good | 8 Apr 2025 |
| Tasty Treats SG18 8AZ | Mobile caterer | 110 m | 5 Very good | 13 Aug 2025 |
| Rack & Bone SG18 8AX | Restaurant/Cafe/Canteen | 110 m | 3 Generally satisfactory | 9 Apr 2025 |
Crime within 250 m
| Category | Crimes |
|---|---|
| Violence and sexual offences | 37 |
| Shoplifting | 31 |
| Anti-social behaviour | 27 |
| Criminal damage and arson | 16 |
| Public order | 14 |
| Burglary | 7 |
| Vehicle crime | 7 |
| Other theft | 6 |
| Robbery | 4 |
| Other crime | 3 |
| Theft from the person | 1 |
| Bicycle theft | 1 |
| Drugs | 1 |
Most of these are attached to: On or near Bonds Lane (64); On or near Church Street (34); On or near Parking Area (18); On or near Mill Close (10); On or near St Andrew'S Street (10).
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. 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 |
|---|---|---|---|---|
| 3 Dec 2023 17:27 | Slight | 1 person | B659, 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
The busiest counted road within 500 m (0.3 miles) is the A6001 between A6001 Shortmead St and B1040, with 12,460 motor vehicles a day on average in 2025, 460 m (0.3 miles) from the street's postcodes.
| Road | Between | Vehicles a day | Lorries | Ten years before | Distance |
|---|---|---|---|---|---|
| A6001 | A6001 Shortmead St to B1040 | 12,460 estimated; counted 2021 | 1% | +6% since 2015 | 460 m (0.3 miles) |
Each figure is the annual average daily flow: the motor vehicles passing the count point, both ways, on an average day of the year. A point is counted by hand on a weekday every few years and estimated from the trend on similar roads in between. Lorries are heavy goods vehicles, as a share of all motor vehicles.
People and work
Who lives here
| Around this street | England | |
|---|---|---|
| Median age | 40 | 40 |
| Children under 15 | 15% | 17% |
| Aged 65 and over | 16% | 18% |
Homes
| Around this street | England | |
|---|---|---|
| Owned (outright or with a mortgage) | 53% | 61% |
| Owned outright | 29% | 33% |
| Shared ownership | 2% | 1% |
| Social rented | 2% | 17% |
| Private rented | 43% | 21% |
Work and commuting
| Around this street | England | |
|---|---|---|
| Adults (16 and over) in work | 75% | 57% |
| Unemployment (of those working or looking for work) | 2% | 6% |
| Retired (of adults) | 19% | 22% |
| Long-term sick or disabled (of adults) | 2% | 4% |
| Work mainly from home (of those in work) | 30% | 32% |
| Travel to work by car or van | 52% | 48% |
| By train, Underground, metro or tram | 7% | 4% |
| By any public transport, including bus | 9% | 8% |
| On foot or by bicycle | 7% | 10% |
| Work within 10 km (6 miles) of home (of those who travel to work) | 52% | 65% |
| Work 30 km (19 miles) or more away | 18% | 8% |
Education and languages
| Around this street | England | |
|---|---|---|
| Degree or other higher qualification, Level 4+ (of adults) | 29% | 34% |
| No qualifications | 13% | 18% |
| Apprenticeship as highest qualification | 12% | 5% |
| Main language English (aged 3 and over) | 90% | 91% |
| Cannot speak English well or at all | under 1% | 2% |
Deprivation
The neighbourhood around this street is in decile 4 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
- Food hygiene ratings The Bigg Theatre (restaurant/cafe/canteen, ) is no longer listed; it was rated 5 Very good found 5 November 2026
- Food hygiene ratings Periasta (takeaway/sandwich shop, SG18 0LA) is no longer listed; it was rated 4 Good found 5 November 2026
Postcodes on this street
- SG18 8BB: 6 addresses of 8 in the postcode
Nearby streets
St Andrew's Street · Mill Lane · Mill Close · Teal Road · Empire Close · Bonds Lane · Church Street · Sandpiper Close · Hitchin Street · Market Square · Foundry Lane · High Street
All the streets in SG18 and across Central Bedfordshire.
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.