Nielson Mechanical Inc.

Nielson Mechanical Inc. has filed 15 building permits in San Francisco since 2016, closing 36% of 14 rated permits. 9 permits remain open.

36%
-45.3 vs 81% median
15
Construction Permits
9
Currently Open
14
Rate-Eligible
permits > 1yr old
2016–2025
Years Active

Closure rate based on permits older than 1 year. “Issued” and “Stop Work” statuses are excluded.

Performance by Permit Type

Plumbing11 rated

45.5% closed vs 81% median, 35.5 points lower

Building3 rated

0.0% closed vs 76% median, 76.2 points lower

Median based on all applicants with 20+ rated permits in each category. Only permits older than 1 year are rated.

Year-by-Year Summary

2025

Open0
Closed1

Too early to rate — permits need 1 year to mature

2024

0.0%
Open2
Closed0

0 closed / 2 rated

2020

0.0%
Open1
Closed0

0 closed / 1 rated

2019

25.0%
Open3
Closed1

1 closed / 4 rated

2018

50.0%
Open1
Closed1

1 closed / 2 rated

2017

50.0%
Open1
Closed1

1 closed / 2 rated

2016

66.7%
Open1
Closed2

2 closed / 3 rated

All Permits

15 permits
StatusPermit #AddressIssued
ClosedPMW202504032651017 Green St, San FranciscoApr 3, 2025<1yr
Open2024091608281720 Polk St, San FranciscoNov 6, 2024
OpenPM202408143771720 Polk St, San FranciscoAug 14, 2024
OpenPMW202006049212899 Vallejo St, San FranciscoJun 4, 2020
ClosedPM201912160201543 Mission St, San FranciscoDec 16, 2019
OpenPM20190717594251 Rhode Island St, San FranciscoJul 17, 2019
Open2019011808083264 Mission St, San FranciscoJan 22, 2019
Open201901180810693 14th St, San FranciscoJan 22, 2019
OpenPMW201806196082699 Taylor St, San FranciscoJun 19, 2018
ClosedPMW20180417147855 Brannan St, San FranciscoApr 17, 2018
ClosedPM20170912621111 Mason St, San FranciscoSep 12, 2017
OpenPM201702098671266 09th Av, San FranciscoFeb 9, 2017
OpenPM201610312631000 Larkin St, San FranciscoOct 31, 2016
ClosedPM20160908790180 Post St, San FranciscoSep 8, 2016
ClosedPM201608222702000 Fillmore St, San FranciscoAug 22, 2016

See Other Applicants