{
  "report": "2026 Los Angeles Teardown & Replacement Report",
  "source": {
    "portal": "data.lacity.org",
    "dataset": "pi9x-tg5x",
    "dataset_url": "https://data.lacity.org/City-Infrastructure-Service-Requests/Building-and-Safety-Building-Permits-Issued-from-2/pi9x-tg5x",
    "extract_date": "2026-10-18"
  },
  "measure": "single-family demolitions joined by parcel (APN) to Bldg-New permits, from 12 months before the demolition permit to N months after",
  "headline_horizon_months": 24,
  "lookback_months": 12,
  "caveats": [
    "The unit is the parcel, not the permit: 201 parcels carry more than one demolition permit, so counting permits inflates every denominator by about 8%.",
    "A replacement counts whether the new-build permit came before or after the demolition permit, because 7.4% of parcels permitted the house first. The 12-month lookback captures 91.8% of those; 24 months would capture 99.1%.",
    "The City relabelled demolition permits during 2025, so single-family-labelled counts fall while the real total rises. Cohorts stop at 2024 for that reason. Bldg-New is not affected.",
    "Lot merges and splits change the APN, so a parcel rebuilt under a new identifier looks unrebuilt. The 'no new-build permit' share is an upper bound.",
    "A demolition permit is not proof the building came down, and a new-build permit is not proof anything was built.",
    "Multi-family figures count parcels, not dwelling units."
  ],
  "parcels_total": 4544,
  "demolition_permits_total": 4943,
  "replacement_by_demolition_year": [
    {
      "demolition_year": 2020,
      "parcels": 770,
      "replaced_by_house_12mo_pct": 40.1,
      "replaced_by_house_24mo_pct": 43.6,
      "replaced_by_house_36mo_pct": 44.5,
      "replaced_by_house_48mo_pct": 45.1
    },
    {
      "demolition_year": 2021,
      "parcels": 906,
      "replaced_by_house_12mo_pct": 45.1,
      "replaced_by_house_24mo_pct": 48.6,
      "replaced_by_house_36mo_pct": 49.3,
      "replaced_by_house_48mo_pct": 50
    },
    {
      "demolition_year": 2022,
      "parcels": 957,
      "replaced_by_house_12mo_pct": 47.5,
      "replaced_by_house_24mo_pct": 50.5,
      "replaced_by_house_36mo_pct": 51.3,
      "replaced_by_house_48mo_pct": null
    },
    {
      "demolition_year": 2023,
      "parcels": 762,
      "replaced_by_house_12mo_pct": 44.2,
      "replaced_by_house_24mo_pct": 47.9,
      "replaced_by_house_36mo_pct": null,
      "replaced_by_house_48mo_pct": null
    },
    {
      "demolition_year": 2024,
      "parcels": 617,
      "replaced_by_house_12mo_pct": 43.4,
      "replaced_by_house_24mo_pct": null,
      "replaced_by_house_36mo_pct": null,
      "replaced_by_house_48mo_pct": null
    },
    {
      "demolition_year": 2025,
      "parcels": 467,
      "replaced_by_house_12mo_pct": null,
      "replaced_by_house_24mo_pct": null,
      "replaced_by_house_36mo_pct": null,
      "replaced_by_house_48mo_pct": null
    },
    {
      "demolition_year": 2026,
      "parcels": 65,
      "replaced_by_house_12mo_pct": null,
      "replaced_by_house_24mo_pct": null,
      "replaced_by_house_36mo_pct": null,
      "replaced_by_house_48mo_pct": null
    }
  ],
  "outcome_mix_at_24_months": [
    {
      "demolition_year": 2020,
      "parcels": 770,
      "to_house_pct": 43.6,
      "to_multifamily_pct": 32.3,
      "to_adu_only_pct": 0.5,
      "to_other_pct": 0.5,
      "no_new_build_pct": 23
    },
    {
      "demolition_year": 2021,
      "parcels": 906,
      "to_house_pct": 48.6,
      "to_multifamily_pct": 30,
      "to_adu_only_pct": 0.9,
      "to_other_pct": 1,
      "no_new_build_pct": 19.5
    },
    {
      "demolition_year": 2022,
      "parcels": 957,
      "to_house_pct": 50.5,
      "to_multifamily_pct": 27,
      "to_adu_only_pct": 1.8,
      "to_other_pct": 0.8,
      "no_new_build_pct": 20
    },
    {
      "demolition_year": 2023,
      "parcels": 762,
      "to_house_pct": 47.9,
      "to_multifamily_pct": 26.2,
      "to_adu_only_pct": 1.2,
      "to_other_pct": 0.7,
      "no_new_build_pct": 24
    }
  ],
  "outcome_by_community_plan_area": [
    {
      "cpa": "Southeast Los Angeles",
      "parcels": 289,
      "to_house_pct": 13.8,
      "to_multifamily_pct": 70.6,
      "no_new_build_pct": 14.9
    },
    {
      "cpa": "South Los Angeles",
      "parcels": 354,
      "to_house_pct": 19.2,
      "to_multifamily_pct": 65.8,
      "no_new_build_pct": 14.7
    },
    {
      "cpa": "Boyle Heights",
      "parcels": 51,
      "to_house_pct": 17.6,
      "to_multifamily_pct": 52.9,
      "no_new_build_pct": 29.4
    },
    {
      "cpa": "Westlake",
      "parcels": 40,
      "to_house_pct": 15,
      "to_multifamily_pct": 52.5,
      "no_new_build_pct": 32.5
    },
    {
      "cpa": "West Adams - Baldwin Hills - Leimert",
      "parcels": 190,
      "to_house_pct": 38.4,
      "to_multifamily_pct": 41.6,
      "no_new_build_pct": 16.8
    },
    {
      "cpa": "North Hollywood - Valley Village",
      "parcels": 221,
      "to_house_pct": 39.8,
      "to_multifamily_pct": 38.5,
      "no_new_build_pct": 19.5
    },
    {
      "cpa": "Wilshire",
      "parcels": 238,
      "to_house_pct": 29.4,
      "to_multifamily_pct": 33.2,
      "no_new_build_pct": 36.1
    },
    {
      "cpa": "Hollywood",
      "parcels": 219,
      "to_house_pct": 34.7,
      "to_multifamily_pct": 32.9,
      "no_new_build_pct": 30.6
    },
    {
      "cpa": "Silver Lake - Echo Park - Elysian Valley",
      "parcels": 67,
      "to_house_pct": 26.9,
      "to_multifamily_pct": 32.8,
      "no_new_build_pct": 35.8
    },
    {
      "cpa": "Northeast Los Angeles",
      "parcels": 80,
      "to_house_pct": 25,
      "to_multifamily_pct": 27.5,
      "no_new_build_pct": 42.5
    },
    {
      "cpa": "Van Nuys - North Sherman Oaks",
      "parcels": 154,
      "to_house_pct": 55.8,
      "to_multifamily_pct": 22.7,
      "no_new_build_pct": 19.5
    },
    {
      "cpa": "Palms - Mar Vista - Del Rey",
      "parcels": 163,
      "to_house_pct": 66.9,
      "to_multifamily_pct": 11,
      "no_new_build_pct": 20.9
    },
    {
      "cpa": "West Los Angeles",
      "parcels": 204,
      "to_house_pct": 67.6,
      "to_multifamily_pct": 9.3,
      "no_new_build_pct": 21.6
    },
    {
      "cpa": "Canoga Park-West Hills-Winnetka-Woodland Hills",
      "parcels": 43,
      "to_house_pct": 65.1,
      "to_multifamily_pct": 7,
      "no_new_build_pct": 20.9
    },
    {
      "cpa": "Venice",
      "parcels": 48,
      "to_house_pct": 81.3,
      "to_multifamily_pct": 4.2,
      "no_new_build_pct": 12.5
    },
    {
      "cpa": "Sherman Oaks-Studio City-Toluca Lake-Cahuenga Pass",
      "parcels": 176,
      "to_house_pct": 84.7,
      "to_multifamily_pct": 2.8,
      "no_new_build_pct": 11.9
    },
    {
      "cpa": "Brentwood - Pacific Palisades",
      "parcels": 294,
      "to_house_pct": 80.3,
      "to_multifamily_pct": 0.7,
      "no_new_build_pct": 16.3
    },
    {
      "cpa": "Bel Air - Beverly Crest",
      "parcels": 75,
      "to_house_pct": 76,
      "to_multifamily_pct": 0,
      "no_new_build_pct": 24
    },
    {
      "cpa": "Encino - Tarzana",
      "parcels": 197,
      "to_house_pct": 89.8,
      "to_multifamily_pct": 0,
      "no_new_build_pct": 9.6
    }
  ],
  "timing_demolition_to_house_permit": {
    "n": 1956,
    "median_months": 2.5,
    "q1_months": 0.7,
    "q3_months": 5.6,
    "p90_months": 11.2,
    "pct_house_permit_before_demolition": 7.4,
    "pct_within_one_month_either_side": 26.4
  },
  "demolition_label_change": [
    {
      "year": 2020,
      "labelled_single_family": 861,
      "labelled_generic": 1,
      "combined": 862
    },
    {
      "year": 2021,
      "labelled_single_family": 957,
      "labelled_generic": 2,
      "combined": 959
    },
    {
      "year": 2022,
      "labelled_single_family": 1046,
      "labelled_generic": 1,
      "combined": 1047
    },
    {
      "year": 2023,
      "labelled_single_family": 820,
      "labelled_generic": 1,
      "combined": 821
    },
    {
      "year": 2024,
      "labelled_single_family": 678,
      "labelled_generic": 0,
      "combined": 678
    },
    {
      "year": 2025,
      "labelled_single_family": 508,
      "labelled_generic": 375,
      "combined": 883
    },
    {
      "year": 2026,
      "labelled_single_family": 73,
      "labelled_generic": 970,
      "combined": 1043
    }
  ]
}