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How long does a seismic retrofit permit take in Los Angeles?

In Los Angeles, the typical seismic retrofit permit took about 4 months (123 days) from application to issue, across 613 permits issued from September 2024 to September 2026. After the permit, the typical finished seismic retrofit took about 6 months (182 days) from permit to final inspection (1,235 finished of 1,638 permits issued from September 2022 to September 2024; 25% had no final inspection on record by September 2026).

4 monthsfrom application to permitMiddle half: 33 days to 11 months
6 monthsfrom permit to final inspectionMiddle half: 3 months to 10 months

The two steps

How long seismic retrofits take in Los Angeles, in daysApplication to permit issued: median 123 days, middle half 33 to 321 days, 613 permits; Permit issued to final inspection: median 182 days, middle half 98 to 318 days, 1,235 permits.Application to permit issued: about 4 monthsPermit issued to final inspection: about 6 months03 mo6 mo9 mo12 mo
Bars show the median; the line through each bar spans the middle half of jobs. The second step starts where the typical permit wait ends. The two steps come from different groups of permits, so they are not added up.
The numbers behind the chart
StepMedianMiddle halfPermitsPermits issued
Application to permit issuedabout 4 months33 days to about 11 months613September 2024 to September 2026
Permit to final inspectionabout 6 monthsabout 3 months to about 10 months1,235September 2022 to September 2024

Seismic retrofit contractors with the most jobs in Los Angeles

RankContractorJobsContact
1Alpha Structural Inc
Sunland, licensed 33 years
87
Visit website
2Titan Contracting Services Inc
North Hollywood, licensed 14 years
77
Visit website
3Optimum Seismic Inc
Vernon, licensed 10 years
72
Visit website

See all 80 ranked seismic retrofit contractors

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Permit wait by year issued

Year issuedJobsMedianMiddle half
2022320about 8 months82 days to about 3.1 years
2023872about 7 months54 days to about 2.3 years
2024531about 6 months63 days to about 4.1 years
2025334about 5 months33 days to about 10 months
2026179about 3 months20 days to about 8 months

Why it takes this long

  • 8% of permits were issued the day they were applied for, and 24% within 30 days (613 permits).
  • 6 more permits issued in those dates carry no application date and are left out of the permit wait.
  • The longer step is building and inspection: about 4 months for the permit against about 6 months from permit to final, at the median.
  • 23% of finished jobs passed final inspection within 90 days of the permit.
  • Of the 1,638 permits issued from September 2022 to September 2024, 403 (25%) had no final inspection on record by September 2026. They may still be under way, dropped or never inspected; the records do not say which. They are left out of the build time; any of them that finishes will have taken more than two years, so counting them would make the typical time longer.

Days are counted between the dates on each city permit: submitted_date, issue_date; final: status 'Permit Finaled' or a certificate, dated by cofo_date or status_date. Median and middle half: half of the jobs took longer than the median; the middle half runs from the 25th to the 75th percentile. A figure is shown only when it rests on 30 or more permits. Kinds of work are sorted by the same rules as our contractor lists. Source: City of Los Angeles, Building Permits Issued from 2020 to Present, read 2026-09-24. The same figures as data: seismic-retrofit.json.