9901 N Mason Ave, Los Angeles
3 home-service permits on record at 9901 N Mason Ave, Los Angeles; the roof was last permitted on Jul 6, 2026 at a declared value of $39,000.
Home-service permits on record at this address
| Issued | Work | Trade | Declared value | Contractor as filed | Status | Permit |
|---|---|---|---|---|---|---|
| Jul 6, 2026 | Bldg-Alter/Repair: Re-roof with Class A or B roof covering material weighing less than 6 pounds per sq. ft. over new solid sheathing 130 Squares. Class A roof covering is required within Very High Fire Hazard Severity Zone . For residential roof replacement > 50% of the total roof area, apply Cool Roof Product labeled and certified by Cool Roof Rating Council . Cool Roof may be required for non-residential buildings per Title 24, Part 6, Section 141.0 2B | Roofing | $39,000 | — | issued | 26016-90000-17744 |
| Aug 6, 2025 | Bldg-Alter/Repair: ePlan: Install and Anchorage for Like for like replacement of six rooftop air conditioning units | Heating and cooling | $60,000 | — | issued | 24016-20000-23258 |
| May 30, 2025 | Bldg-Alter/Repair: Re-roof with Class A or B material weighing less than 6 pounds per sq. ft. over existing solid sheathing___144___Squares. Class A roof covering is required within Very High Fire Hazard Severity Zone . For residential roof replacement>50% of the total roof area, apply Cool Roof Product labeled and certified by Cool Roof Rating Council . Cool Roof may be required for non-residential buildings per Title 24, Part 6, Section 141 2B | Roofing | $28,800 | — | issued | 25016-10000-17629 |
On N Mason Ave
81 permits on record on N Mason Ave.
| Trade | Permits | Since Oct 7, 2024 | Median declared | Range | Last |
|---|---|---|---|---|---|
| Roofing | 66 | 18 | $8,000 | $4,440–$73,356 | Sep 22, 2026 |
| Heating and cooling | 13 | 4 | — | under 5 | May 6, 2026 |
| Water heater | 1 | 0 | — | under 5 | May 15, 2024 |
| Electrical | 1 | 0 | — | under 5 | Jun 16, 2023 |
Roof replacement cost in Los Angeles
Across 20,947 one- and two-family reroof permits since October 7, 2024, most declared values run from $2,000 to $12,900 (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 5,341 one- and two-family heating and cooling permits since October 7, 2024, most declared values run from $501 to $39,220 (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 7, 2026. Owner names are not shown on any page.