Hooks Hall Drive Dagenham

107 addresses across 4 postcodes (RM10), about 240 m long, classed as a local road. USRN 19900682.

  • Sales: 44 recorded sales since 1995; in 2025 the median was £220,000 across 1 sale.
  • Energy: 54 homes have an energy certificate (C: 21, D: 23, E: 10).
  • Flood: 22 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 C; Band D in Barking and Dagenham costs £2,199 a year in 2026-27.
  • Broadband: Gigabit broadband is available to 100% of premises.
  • Transport: The nearest railway station is Romford, about 2.3 km (1.5 miles) away in a straight line.
  • Green space: The nearest park or garden, Central Park, is about 150 m away.
  • Air: Background air pollution in 2024 was 14.3 µg/m³ of nitrogen dioxide and 8.4 of PM2.5, within UK legal limits.
  • Height: It is about 14 m above sea level.
  • Noise: 3 of its 107 addresses are modelled at 55 dB or more from road traffic.
  • Doctors: The nearest GP surgery is The College Practice, about 740 m (0.5 miles) away, with 7 practices within 1.6 km (1 mile).
  • People: About 720 people lived in the census areas around it in 2021; 39% of households owned their home and 27% of adults held a degree or other higher qualification.
  • Crime: 62 crimes were recorded within 250 m between September 2025 and August 2026, most often anti-social behaviour.

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
20251£220,000£220,000£220,000
20241£405,000£405,000£405,000
20231£455,000£455,000£455,000
20201£220,100£220,100£220,100
20181£277,500£277,500£277,500
20171£200,000£200,000£200,000
20161£355,000£355,000£355,000
20151£280,000£280,000£280,000
20144£193,750£146,500£225,000
20132£180,000£120,000£240,000
20078£205,250£124,999£249,000
20051£175,000£175,000£175,000
Most recent sales (44)
DateAddressTypePriceNotes
11 Dec 202540 RM10 7BHSemi-detached£220,000Leasehold.
28 Mar 202445 RM10 7BDTerraced£405,000
11 Oct 202362 RM10 7BDTerraced£455,000
7 Dec 202034 RM10 7BHFlat or maisonette£220,100Leasehold.
25 Feb 201921 RM10 7BLSemi-detached£340,000Not a standard sale (repossession, buy-to-let or transfer).
30 Aug 201815 RM10 7BLSemi-detached£277,500
27 Nov 201736A RM10 7BHFlat or maisonette£200,000Leasehold.
8 Jul 20161 RM10 7BLSemi-detached£355,000
1 Dec 201546A RM10 7BDFlat or maisonette£165,000Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
14 Jul 201548 RM10 7BDFlat or maisonette£154,950Leasehold. Not a standard sale (repossession, buy-to-let or transfer).
30 Jan 201523 RM10 7BLSemi-detached£280,000
8 Dec 201440A RM10 7BHFlat or maisonette£167,500Leasehold.
23 May 201466 RM10 7BDTerraced£220,000
30 Apr 201438A RM10 7BHFlat or maisonette£146,500Leasehold.
23 Jan 201411 RM10 7BLSemi-detached£225,000
24 May 201354 RM10 7BDTerraced£240,000
5 Mar 201354 RM10 7BDTerraced£120,000
10 Dec 200745 RM10 7BDTerraced£235,000
2 Nov 200766 RM10 7BDTerraced£208,000
4 Sep 200752A RM10 7BDFlat or maisonette£132,000Leasehold.
17 Aug 200751 RM10 7BDTerraced£235,000
25 Jul 200723 RM10 7BLSemi-detached£249,000
23 Mar 200734A RM10 7BHFlat or maisonette£124,999Leasehold.
16 Feb 200741 RM10 7BDTerraced£202,500
15 Feb 200748A RM10 7BDFlat or maisonette£138,000Leasehold.
16 Sep 200511 RM10 7BLSemi-detached£175,000
21 Sep 200445 RM10 7BDTerraced£185,000
25 Jun 200438A RM10 7BHFlat or maisonette£125,000Leasehold.
27 Oct 20031 RM10 7BLSemi-detached£177,500
29 Aug 200332A RM10 7BHFlat or maisonette£115,000Leasehold.
9 Jun 200318 RM10 7BLTerraced£149,000
2 Dec 200252A RM10 7BDFlat or maisonette£99,995Leasehold.
18 Feb 20028 RM10 7BLSemi-detached£110,000
4 Jun 200143 RM10 7BDTerraced£90,000
25 May 200140A RM10 7BHFlat or maisonette£63,000Leasehold.
6 Apr 200160 RM10 7BDTerraced£102,500
30 Nov 200011 RM10 7BLSemi-detached£95,000
4 Feb 200047 RM10 7BDTerraced£98,000
25 Jun 199956 RM10 7BDTerraced£72,000
15 Feb 199923 RM10 7BLSemi-detached£59,995
29 Jan 199940A RM10 7BHFlat or maisonette£46,995Leasehold.
28 Aug 19987 RM10 7BLSemi-detached£73,000
10 Oct 19978 RM10 7BLSemi-detached£50,000
21 Mar 199712 RM10 7BLSemi-detached£56,000

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 August 2009 and some homes have none. Address data © Ordnance Survey and Royal Mail, shown for understanding the energy efficiency of buildings only.

54 homes with a current certificate; median floor area 51 m². Most common: Flat (22); House, semi-detached (13); House, mid-terrace (5). Built: 1950-1966 (25); 1930-1949 (17); 1967-1975 (6). Tenure at assessment: rented (social) (18); rented (private) (15); owner-occupied (15).

Each home's certificates and sales (26 addresses)

Council tax

What each band costs in Barking and Dagenham in 2026-27: Band D £2,199 a year on average, including the police, fire and any county and parish charges.

ABCDEFGH
£1,466£1,710£1,954£2,199£2,687£3,176£3,664£4,397

Homes by band in the neighbourhood around this street: most are in band C (60% of about 550 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): HMO Article 4.
  • 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, 6 addresses are in areas at high risk, 16 at medium risk and 59 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.

PostcodePlanning zoneAddresses at high / medium / low riskGroundwater
RM10 7BDnot in 2 or 3 2 / 10 / 10 unlikely
RM10 7BLnot in 2 or 3 3 / 1 / 15 unlikely
RM10 7BHnot in 2 or 3 0 / 3 / 22 unlikely
RM10 7BBnot in 2 or 3 1 / 2 / 12 unlikely

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 14 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
RM10 7BB100%100%100%0%
RM10 7BD100%100%100%0%
RM10 7BH100%100%100%0%
RM10 7BL100%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 stationsRomford 12 million journeys in 2024–252.3 km (1.5 miles)
Chadwell Heath 4.9 million journeys in 2024–253.1 km (1.9 miles)
Dagenham Dock 425,000 journeys in 2024–253.7 km (2.3 miles)
Underground, metro or tramDagenham East Underground Station1.3 km (0.8 miles)
Bus stops6 stops within 400 m (0.2 miles), 17 within 800 m (0.5 miles); nearest Park Drive Beacontree Heath290 m
Ferry terminalBarking Riverside Pier Creekmouth5.7 km (3.5 miles)
Car parksCar Park1.9 km (1.2 miles)
EV charging points11 within 1.6 km (1 mile); nearest Rainham Road850 m (0.5 miles)
Airport with scheduled flightsLondon City Airport LCY9.7 km (6 miles)
Nearest large airportLondon Stansted Airport STN36.9 km (23 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 surgeries7 practices within 1.6 km (1 mile); nearest The College Practice740 m (0.5 miles)
Pharmacies5 pharmacies within 1.6 km (1 mile); nearest Asvacare LTD1.1 km (0.7 miles)
NHS dentists5 practices within 1.6 km (1 mile); nearest Inspire Dental Dagenham Practice1.1 km (0.7 miles)
HospitalQueens Hospital1.6 km (1 mile)
Police stationDagenham Police Station1.2 km (0.7 miles)
Cash machines1 machines within 800 m (0.5 miles); nearest Rainham Service Station Cashzone760 m (0.5 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 garden2 within 800 m (0.5 miles); nearest Central Park 49 ha150 m
Largest park within 800 m (0.5 miles)Eastbrookend Country Park 131 ha230 m
Play area4 within 800 m (0.5 miles); nearest Unnamed 1,050 m²430 m (0.3 miles)
Playing fieldUnnamed 1.3 ha1.1 km (0.7 miles)
AllotmentsFarlands Allotment 4,150 m²880 m (0.5 miles)

Within 800 m (0.5 miles): 2 parks and gardens, 180 hectares in all.

Landmarks

The nearest historic landmark is Eastbrook Public House, a listed building (Grade II*), 690 m (0.4 miles) south-west. 6 listed buildings are within 1 km (0.6 miles), 1 of them Grade II*.

Historic places
NameWhat it isFrom the middle of the street
Eastbrook Public HouseListed building, Grade II*690 m (0.4 miles) south-west
Natural landmarks within 5 km (3.1 miles)
NameWhat it isFrom the middle of the street
White Hart LakesLake or reservoir560 m (0.3 miles) east
Wheelers LakeLake or reservoir570 m (0.4 miles) south-east
Eastbrook GroveWood660 m (0.4 miles) south-east
Tom Thumb LakeLake or reservoir720 m (0.4 miles) south-east
Bardag LakeLake or reservoir840 m (0.5 miles) south-east
Hornchurch ShootWetland5 km (3.1 miles) south

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)14.34010
Fine particles (PM2.5)8.4205
Particles (PM10)13.14015

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

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 5930
Under 55104107

3 of the street's 107 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 Barking and Dagenham: see them on the Barking and Dagenham 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
Eastbrook SchoolAll-through4–19600 m (0.4 miles) Report card (Nov 2025): Curriculum and teaching: Expected standard; Achievement: Expected standard; Attendance and behaviour: Strong standard; Personal development and wellbeing: Expected standard; Inclusion: Strong standard; Leadership and governance: Strong standard; Early years: Strong standard; Post-16 provision: Expected standard; Safeguarding standards: Met
Barking and Dagenham College16 plus16–99640 m (0.4 miles) No published inspection
Brook Sixth Form and AcademySecondary14–19880 m (0.5 miles) No overall grade (Nov 2024, graded inspection without an overall judgement): Quality of education: Good; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Good
Rush Green Primary SchoolPrimary3–111 km (0.6 miles) No overall grade (Jul 2025, graded inspection without an overall judgement): Quality of education: Outstanding; Behaviour and attitudes: Outstanding; Personal development: Outstanding; Leadership and management: Outstanding
William Bellamy Primary SchoolPrimary3–111.1 km (0.7 miles) No published inspection
Hunters Hall Primary SchoolPrimary3–111.3 km (0.8 miles) No published inspection
Robert Clack SchoolAll-through3–181.3 km (0.8 miles) Good (Nov 2023, overall grade under the previous framework)
All Saints Catholic School and Technology College Roman CatholicSecondary11–181.5 km (0.9 miles) Outstanding (May 2024, overall grade under the previous framework)
John Perry Primary SchoolPrimary3–111.5 km (0.9 miles) No published inspection
Richard Alibon Primary School with ARP for Cognitive and Learning Difficulties : SEN BasePrimary3–111.5 km (0.9 miles) Good (Jul 2023, overall grade under the previous framework)
Five Elms Primary SchoolPrimary3–111.6 km (1 mile) No published inspection
Harrow Lodge Primary SchoolPrimary4–111.8 km (1.1 miles) Outstanding (Jun 2022, overall grade under the previous framework)

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
Nikki's RM10 7ARRetailers - other160 m4 Good27 Oct 2023
Fam Daily Care Ltd RM10 7AJHospitals/Childcare/Caring Premises200 m5 Very good20 Dec 2024
Farmhouse Venue RM7 0QXRestaurant/Cafe/Canteen470 m (0.3 miles)5 Very good12 Mar 2024
Brook Pie & Mash RM10 7UPRestaurant/Cafe/Canteen490 m (0.3 miles)4 Good4 Jul 2026
Eastbrook Super Shop RM10 7UPRetailers - other490 m (0.3 miles)4 Good26 Jun 2025
Crispy Mandem RM10 7UPRestaurant/Cafe/Canteen490 m (0.3 miles)4 Good11 Oct 2025
Eastbrook Pub RM10 7UPPub/bar/nightclub490 m (0.3 miles)2 Improvement necessary11 Feb 2026
1st Steps Day Nursery LTD RM10 7UPHospitals/Childcare/Caring Premises500 m (0.3 miles)4 Good25 Feb 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.

62 recorded crimes by category
CategoryCrimes
Anti-social behaviour23
Violence and sexual offences21
Other theft6
Drugs4
Vehicle crime3
Robbery1
Other crime1
Public order1
Theft from the person1
Burglary1

Most of these are attached to: On or near Park/Open Space (23); On or near Ely Gardens (18); On or near Bell Farm Avenue (11); On or near Hooks Hall Drive (3); On or near Wheel Farm Drive (2).

People and work

Source: ONS Census 2021, taken on 21 March 2021, for the 2 Output Areas (small census areas of about 125 households each) that this street's postcodes are in: 720 residents in 246 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 age3640
Children under 1519%17%
Aged 65 and over16%18%

Homes

Around this streetEngland
Owned (outright or with a mortgage)39%61%
Owned outright12%33%
Shared ownershipunder 1%1%
Social rented46%17%
Private rented15%21%

Work and commuting

Around this streetEngland
Adults (16 and over) in work52%57%
Unemployment (of those working or looking for work)9%6%
Retired (of adults)16%22%
Long-term sick or disabled (of adults)8%4%
Work mainly from home (of those in work)20%32%
Travel to work by car or van42%48%
By train, Underground, metro or tram18%4%
By any public transport, including bus34%8%
On foot or by bicycle3%10%
Work within 10 km (6 miles) of home (of those who travel to work)54%65%
Work 30 km (19 miles) or more away8%8%

Education and languages

Around this streetEngland
Degree or other higher qualification, Level 4+ (of adults)27%34%
No qualifications29%18%
Apprenticeship as highest qualification4%5%
Main language English (aged 3 and over)83%91%
Cannot speak English well or at all3%2%

Deprivation

The neighbourhood around this street is in decile 3 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

  • Energy certificates New energy certificate: band D, house, mid-terrace (lodged 22 October 2026) found 2 November 2026

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

Ely Gardens · Birch Gardens · Bell Farm Avenue · Fir Tree Walk · Wheel Farm Drive · Highland Avenue · Fels Farm Avenue · Home Gardens · Park Drive · Fels Farm Avenue · Tony Rawson Way · Hardie Road

All the streets in RM10 and across Barking and Dagenham.

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.