{
  "analysis_version": "0.1.0",
  "retrieved_date": "2026-10-19",
  "reference_date": "2021-03-21",
  "boundary_geography": "2022 wards",
  "source_ts052": "https://www.nomisweb.co.uk/datasets/c2021ts052",
  "source_ts044": "https://www.nomisweb.co.uk/datasets/c2021ts044",
  "api_ts052": "https://www.nomisweb.co.uk/api/v01/dataset/NM_2070_1.data.csv?geography=E09000018TYPE153&c2021_occrat_bedrooms_6=0,4,5&measures=20100&select=geography_code,geography_name,c2021_occrat_bedrooms_6,c2021_occrat_bedrooms_6_name,obs_value",
  "api_ts044": "https://www.nomisweb.co.uk/api/v01/dataset/NM_2062_1.data.csv?geography=E09000018TYPE153&c2021_acctype_9=0,5,6,7&measures=20100&select=geography_code,geography_name,c2021_acctype_9,c2021_acctype_9_name,obs_value",
  "definition": "Overcrowded = occupancy rating bedrooms -1 or -2 or less, divided by total households (TS052)",
  "caveats": [
    "These are all-household Census 2021 housing indicators, not vaccination rates or a childhood-wellbeing ranking.",
    "Data refer to 21 March 2021 in 2022 ward boundaries, not current 2026 conditions.",
    "Converted or shared houses including bedsits is an accommodation-type category, not an HMO licensing or poor-housing finding.",
    "No person-level linkage to vaccination or children is present. Association would not establish causation.",
    "ONS applies statistical disclosure control, so small differences in totals across tables may occur."
  ],
  "wards": [
    {
      "ward_code": "E05013620",
      "ward_name": "Hounslow Central",
      "households_total_ts052": 3635,
      "bedroom_minus1_households": 773,
      "bedroom_minus2_or_less_households": 228,
      "overcrowded_households": 1001,
      "overcrowded_pct": 27.5378,
      "households_total_ts044": 3637,
      "converted_or_shared_house_including_bedsits_households": 450,
      "converted_or_shared_house_including_bedsits_pct": 12.3728,
      "other_converted_building_households": 30,
      "commercial_building_households": 102,
      "overcrowding_rank_highest_first": 1
    },
    {
      "ward_code": "E05013624",
      "ward_name": "Hounslow West",
      "households_total_ts052": 4879,
      "bedroom_minus1_households": 833,
      "bedroom_minus2_or_less_households": 348,
      "overcrowded_households": 1181,
      "overcrowded_pct": 24.2058,
      "households_total_ts044": 4879,
      "converted_or_shared_house_including_bedsits_households": 375,
      "converted_or_shared_house_including_bedsits_pct": 7.686,
      "other_converted_building_households": 77,
      "commercial_building_households": 77,
      "overcrowding_rank_highest_first": 2
    },
    {
      "ward_code": "E05013612",
      "ward_name": "Cranford",
      "households_total_ts052": 4989,
      "bedroom_minus1_households": 780,
      "bedroom_minus2_or_less_households": 338,
      "overcrowded_households": 1118,
      "overcrowded_pct": 22.4093,
      "households_total_ts044": 4991,
      "converted_or_shared_house_including_bedsits_households": 215,
      "converted_or_shared_house_including_bedsits_pct": 4.3078,
      "other_converted_building_households": 7,
      "commercial_building_households": 27,
      "overcrowding_rank_highest_first": 3
    },
    {
      "ward_code": "E05013622",
      "ward_name": "Hounslow Heath",
      "households_total_ts052": 5154,
      "bedroom_minus1_households": 844,
      "bedroom_minus2_or_less_households": 309,
      "overcrowded_households": 1153,
      "overcrowded_pct": 22.371,
      "households_total_ts044": 5151,
      "converted_or_shared_house_including_bedsits_households": 419,
      "converted_or_shared_house_including_bedsits_pct": 8.1343,
      "other_converted_building_households": 21,
      "commercial_building_households": 79,
      "overcrowding_rank_highest_first": 4
    },
    {
      "ward_code": "E05013619",
      "ward_name": "Heston West",
      "households_total_ts052": 4707,
      "bedroom_minus1_households": 677,
      "bedroom_minus2_or_less_households": 264,
      "overcrowded_households": 941,
      "overcrowded_pct": 19.9915,
      "households_total_ts044": 4706,
      "converted_or_shared_house_including_bedsits_households": 76,
      "converted_or_shared_house_including_bedsits_pct": 1.615,
      "other_converted_building_households": 3,
      "commercial_building_households": 19,
      "overcrowding_rank_highest_first": 5
    },
    {
      "ward_code": "E05013617",
      "ward_name": "Heston Central",
      "households_total_ts052": 4330,
      "bedroom_minus1_households": 603,
      "bedroom_minus2_or_less_households": 254,
      "overcrowded_households": 857,
      "overcrowded_pct": 19.7921,
      "households_total_ts044": 4332,
      "converted_or_shared_house_including_bedsits_households": 162,
      "converted_or_shared_house_including_bedsits_pct": 3.7396,
      "other_converted_building_households": 11,
      "commercial_building_households": 62,
      "overcrowding_rank_highest_first": 6
    },
    {
      "ward_code": "E05013621",
      "ward_name": "Hounslow East",
      "households_total_ts052": 3042,
      "bedroom_minus1_households": 423,
      "bedroom_minus2_or_less_households": 128,
      "overcrowded_households": 551,
      "overcrowded_pct": 18.1131,
      "households_total_ts044": 3041,
      "converted_or_shared_house_including_bedsits_households": 124,
      "converted_or_shared_house_including_bedsits_pct": 4.0776,
      "other_converted_building_households": 8,
      "commercial_building_households": 46,
      "overcrowding_rank_highest_first": 7
    },
    {
      "ward_code": "E05013618",
      "ward_name": "Heston East",
      "households_total_ts052": 3549,
      "bedroom_minus1_households": 434,
      "bedroom_minus2_or_less_households": 164,
      "overcrowded_households": 598,
      "overcrowded_pct": 16.8498,
      "households_total_ts044": 3554,
      "converted_or_shared_house_including_bedsits_households": 144,
      "converted_or_shared_house_including_bedsits_pct": 4.0518,
      "other_converted_building_households": 14,
      "commercial_building_households": 39,
      "overcrowding_rank_highest_first": 8
    },
    {
      "ward_code": "E05013607",
      "ward_name": "Brentford East",
      "households_total_ts052": 3647,
      "bedroom_minus1_households": 512,
      "bedroom_minus2_or_less_households": 88,
      "overcrowded_households": 600,
      "overcrowded_pct": 16.4519,
      "households_total_ts044": 3648,
      "converted_or_shared_house_including_bedsits_households": 45,
      "converted_or_shared_house_including_bedsits_pct": 1.2336,
      "other_converted_building_households": 62,
      "commercial_building_households": 24,
      "overcrowding_rank_highest_first": 9
    },
    {
      "ward_code": "E05013613",
      "ward_name": "Feltham North",
      "households_total_ts052": 4218,
      "bedroom_minus1_households": 499,
      "bedroom_minus2_or_less_households": 181,
      "overcrowded_households": 680,
      "overcrowded_pct": 16.1214,
      "households_total_ts044": 4219,
      "converted_or_shared_house_including_bedsits_households": 165,
      "converted_or_shared_house_including_bedsits_pct": 3.9109,
      "other_converted_building_households": 6,
      "commercial_building_households": 45,
      "overcrowding_rank_highest_first": 10
    },
    {
      "ward_code": "E05013614",
      "ward_name": "Feltham West",
      "households_total_ts052": 5691,
      "bedroom_minus1_households": 725,
      "bedroom_minus2_or_less_households": 160,
      "overcrowded_households": 885,
      "overcrowded_pct": 15.5509,
      "households_total_ts044": 5692,
      "converted_or_shared_house_including_bedsits_households": 52,
      "converted_or_shared_house_including_bedsits_pct": 0.9136,
      "other_converted_building_households": 6,
      "commercial_building_households": 62,
      "overcrowding_rank_highest_first": 11
    },
    {
      "ward_code": "E05013606",
      "ward_name": "Bedfont",
      "households_total_ts052": 5316,
      "bedroom_minus1_households": 614,
      "bedroom_minus2_or_less_households": 195,
      "overcrowded_households": 809,
      "overcrowded_pct": 15.2182,
      "households_total_ts044": 5316,
      "converted_or_shared_house_including_bedsits_households": 151,
      "converted_or_shared_house_including_bedsits_pct": 2.8405,
      "other_converted_building_households": 17,
      "commercial_building_households": 40,
      "overcrowding_rank_highest_first": 12
    },
    {
      "ward_code": "E05013616",
      "ward_name": "Hanworth Village",
      "households_total_ts052": 5659,
      "bedroom_minus1_households": 659,
      "bedroom_minus2_or_less_households": 178,
      "overcrowded_households": 837,
      "overcrowded_pct": 14.7906,
      "households_total_ts044": 5660,
      "converted_or_shared_house_including_bedsits_households": 176,
      "converted_or_shared_house_including_bedsits_pct": 3.1095,
      "other_converted_building_households": 22,
      "commercial_building_households": 39,
      "overcrowding_rank_highest_first": 13
    },
    {
      "ward_code": "E05013615",
      "ward_name": "Hanworth Park",
      "households_total_ts052": 3871,
      "bedroom_minus1_households": 408,
      "bedroom_minus2_or_less_households": 82,
      "overcrowded_households": 490,
      "overcrowded_pct": 12.6582,
      "households_total_ts044": 3871,
      "converted_or_shared_house_including_bedsits_households": 109,
      "converted_or_shared_house_including_bedsits_pct": 2.8158,
      "other_converted_building_households": 35,
      "commercial_building_households": 37,
      "overcrowding_rank_highest_first": 14
    },
    {
      "ward_code": "E05013625",
      "ward_name": "Isleworth",
      "households_total_ts052": 5456,
      "bedroom_minus1_households": 512,
      "bedroom_minus2_or_less_households": 97,
      "overcrowded_households": 609,
      "overcrowded_pct": 11.162,
      "households_total_ts044": 5456,
      "converted_or_shared_house_including_bedsits_households": 152,
      "converted_or_shared_house_including_bedsits_pct": 2.7859,
      "other_converted_building_households": 76,
      "commercial_building_households": 53,
      "overcrowding_rank_highest_first": 15
    },
    {
      "ward_code": "E05013627",
      "ward_name": "Syon & Brentford Lock",
      "households_total_ts052": 5366,
      "bedroom_minus1_households": 502,
      "bedroom_minus2_or_less_households": 92,
      "overcrowded_households": 594,
      "overcrowded_pct": 11.0697,
      "households_total_ts044": 5366,
      "converted_or_shared_house_including_bedsits_households": 145,
      "converted_or_shared_house_including_bedsits_pct": 2.7022,
      "other_converted_building_households": 54,
      "commercial_building_households": 36,
      "overcrowding_rank_highest_first": 16
    },
    {
      "ward_code": "E05013626",
      "ward_name": "Osterley & Spring Grove",
      "households_total_ts052": 5274,
      "bedroom_minus1_households": 430,
      "bedroom_minus2_or_less_households": 91,
      "overcrowded_households": 521,
      "overcrowded_pct": 9.8786,
      "households_total_ts044": 5274,
      "converted_or_shared_house_including_bedsits_households": 336,
      "converted_or_shared_house_including_bedsits_pct": 6.3709,
      "other_converted_building_households": 131,
      "commercial_building_households": 46,
      "overcrowding_rank_highest_first": 17
    },
    {
      "ward_code": "E05013623",
      "ward_name": "Hounslow South",
      "households_total_ts052": 4805,
      "bedroom_minus1_households": 368,
      "bedroom_minus2_or_less_households": 83,
      "overcrowded_households": 451,
      "overcrowded_pct": 9.3861,
      "households_total_ts044": 4806,
      "converted_or_shared_house_including_bedsits_households": 263,
      "converted_or_shared_house_including_bedsits_pct": 5.4723,
      "other_converted_building_households": 15,
      "commercial_building_households": 37,
      "overcrowding_rank_highest_first": 18
    },
    {
      "ward_code": "E05013608",
      "ward_name": "Brentford West",
      "households_total_ts052": 3366,
      "bedroom_minus1_households": 228,
      "bedroom_minus2_or_less_households": 35,
      "overcrowded_households": 263,
      "overcrowded_pct": 7.8134,
      "households_total_ts044": 3365,
      "converted_or_shared_house_including_bedsits_households": 422,
      "converted_or_shared_house_including_bedsits_pct": 12.5409,
      "other_converted_building_households": 47,
      "commercial_building_households": 27,
      "overcrowding_rank_highest_first": 19
    },
    {
      "ward_code": "E05013609",
      "ward_name": "Chiswick Gunnersbury",
      "households_total_ts052": 5731,
      "bedroom_minus1_households": 277,
      "bedroom_minus2_or_less_households": 48,
      "overcrowded_households": 325,
      "overcrowded_pct": 5.6709,
      "households_total_ts044": 5729,
      "converted_or_shared_house_including_bedsits_households": 1019,
      "converted_or_shared_house_including_bedsits_pct": 17.7867,
      "other_converted_building_households": 86,
      "commercial_building_households": 113,
      "overcrowding_rank_highest_first": 20
    },
    {
      "ward_code": "E05013611",
      "ward_name": "Chiswick Riverside",
      "households_total_ts052": 4459,
      "bedroom_minus1_households": 192,
      "bedroom_minus2_or_less_households": 37,
      "overcrowded_households": 229,
      "overcrowded_pct": 5.1357,
      "households_total_ts044": 4458,
      "converted_or_shared_house_including_bedsits_households": 577,
      "converted_or_shared_house_including_bedsits_pct": 12.943,
      "other_converted_building_households": 42,
      "commercial_building_households": 43,
      "overcrowding_rank_highest_first": 21
    },
    {
      "ward_code": "E05013610",
      "ward_name": "Chiswick Homefields",
      "households_total_ts052": 5816,
      "bedroom_minus1_households": 253,
      "bedroom_minus2_or_less_households": 43,
      "overcrowded_households": 296,
      "overcrowded_pct": 5.0894,
      "households_total_ts044": 5816,
      "converted_or_shared_house_including_bedsits_households": 964,
      "converted_or_shared_house_including_bedsits_pct": 16.575,
      "other_converted_building_households": 73,
      "commercial_building_households": 138,
      "overcrowding_rank_highest_first": 22
    }
  ]
}