21 E Thornton Ave, Los Angeles
2 home-service permits on record at 21 E Thornton Ave, Los Angeles; no roofing permit on record.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Jul 22, 2026 | Bldg-Alter/Repair: Window change-out (same size & type) for residential buildings. Dual glazing, labeled andcertified by National Fenestration Rating Council , is required for doors and windows replaced in allresidential buildings, three stories or less, per Section 150.2 1B of Title 24 unit 1 | Heating and cooling | $501 | — | Finaled Jul 31, 2026 | 26016-30000-19210 |
| Jul 10, 2026 | Bldg-Alter/Repair: Window change-out (same size & type) for residential buildings. Dual glazing, labeled andcertified by National Fenestration Rating Council , is required for doors and windows replaced in allresidential buildings, three stories or less, per Section 150.2 1B of Title 24 unit 21 | Heating and cooling | $501 | — | Finaled Jul 16, 2026 | 26016-30000-16757 |
On E Thornton Ave
3 permits on record on E Thornton Ave.
| Trade | Permits | Since Oct 2, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 1 | 0 | — | under 5 | Jul 11, 2022 |
| Heating and cooling | 2 | 2 | — | under 5 | Jul 22, 2026 |
Roof replacement cost in Los Angeles
Across 20,726 one- and two-family reroof permits since October 2, 2024, most declared values run from $2,000 to $12,990 (the middle 80%); the median is $5,200 and half fall between $3,600 and $7,800. The lowest on record is $19 and the highest $570,000. Every permit behind that range.
Furnace, heat pump or air conditioner replacement cost in Los Angeles
Across 5,345 one- and two-family heating and cooling permits since October 2, 2024, most declared values run from $501 to $39,001 (the middle 80%); the median is $4,251 and half fall between $1,250 and $15,000. The lowest on record is $1 and the highest $1,800,000. Every permit behind that range.
Source
Los Angeles Department of Building and Safety, via the city open-data portal, pulled nightly; the assessor roll for the property fields. As of October 2, 2026. Owner names are not shown on any page.