Cliff Abernathy

License: C90242; Look the license up with the state
Listed as: architect, engineer
Firm: Trylon
Based in: Irving
On San Francisco permits: Sep 2020 to May 2024

18 permits since 2000 (engineer on 16 permits, architect on 2 permits): 7 completed, 3 in progress, 1 never finaled, 7 expired or cancelled.

CompletedIn progressNever finaledExpired or cancelled

This is the city’s permit record, not a license check: the role and the number come from what was written on each permit (the number spelled one way). It does not show whether the license is current. How to read these records

Most recent permits

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
May 29, 2024	In progress issued May 2025	450 Harrison St	Mastec Network Solutions Inc	t-mobile: remove (4)(e) antennas; install (3)(n) antennas; remove (2)(e) cabinets; install (2)(n) cabinets; isntall (12)(n) batteries; install (n) electrical ppc. Details Permit 202405293191 Status issued Filed May 29, 2024 Permit issued May 23, 2025 Declared cost $55,000 Address 450 Harrison St t-mobile: remove (4)(e) antennas; install (3)(n) antennas; remove (2)(e) cabinets; install (2)(n) cabinets; isntall (12)(n) batteries; install (n) electrical ppc. Open the permit page	$55,000
Feb 28, 2024	In progress issued Sep 2024	4501 Irving St	Mastec Network Solutions Inc	tmobile: remove (1)(e) antenna; install (6)(n) antennas within (n) screening; remove (e) equipment from (e) cabinet; no change to (e) electrical panel; no change to (e) batteries. Details Permit 202402286719 Status issued Filed Feb 28, 2024 Permit issued Sep 4, 2024 Declared cost $90,000 Address 4501 Irving St tmobile: remove (1)(e) antenna; install (6)(n) antennas within (n) screening; remove (e) equipment from (e) cabinet; no change to (e) electrical panel; no change to (e) batteries. Open the permit page	$90,000
Oct 19, 2023	In progress issued Jan 2025	86 03rd St	Metropolitan Electrical Construction	remove & replacce (3) antennas; remove & replace 3 rru radios; install 1 new battery cabinet to replace (e) cabinet; install routers baseban unit; install 3 dsu; install 12 batteries in (e) battery cabinet Details Permit 202310198980 Status issued Filed Oct 19, 2023 Permit issued Jan 16, 2025 Declared cost $30,000 Address 86 03rd St remove & replacce (3) antennas; remove & replace 3 rru radios; install 1 new battery cabinet to replace (e) cabinet; install routers baseban unit; install 3 dsu; install 12 batteries in (e) battery cabinet Open the permit page	$30,000
Jul 11, 2023	Completed final sign-off May 2024	1744 Armstrong Av	Mastec Network Solutions Inc	t-mobile: rr 3 rru in equipment room, install 3 new antennas, install 2 new cabinets, install 100a circuit in cabinet Details Permit 202307111837 Status complete Filed Jul 11, 2023 Permit issued Sep 26, 2023 Final sign-off May 9, 2024 Declared cost $30,000 Address 1744 Armstrong Av t-mobile: rr 3 rru in equipment room, install 3 new antennas, install 2 new cabinets, install 100a circuit in cabinet Open the permit page	$30,000
Feb 27, 2023	Completed final sign-off Aug 2023	1485 Bush St	Mastec Network Solutions Inc	revision to pa 2022-0520-4684: electrical panel 4 breaker 25 amps (n) 200amp panel. all work is interior at the basement for cell site on roof. Details Permit 202302272637 Status complete Filed Feb 27, 2023 Permit issued Jul 26, 2023 Final sign-off Aug 4, 2023 Address 1485 Bush St revision to pa 2022-0520-4684: electrical panel 4 breaker 25 amps (n) 200amp panel. all work is interior at the basement for cell site on roof. Open the permit page
Feb 25, 2022	Expired or cancelled withdrawn Oct 2023	1625 Post St		a proposed modification to an extg wireless facility to include removing 3 extg antennas and installing 6 (p) antennas, removing 12 extg radios and installing 6 new ones, installing 3 nw hybrid cables, installing 2 nw battery cabinets and ancillary electrical work. Details Permit 202202258725 Status withdrawn Filed Feb 25, 2022 Declared cost $40,000 Address 1625 Post St a proposed modification to an extg wireless facility to include removing 3 extg antennas and installing 6 (p) antennas, removing 12 extg radios and installing 6 new ones, installing 3 nw hybrid cables, installing 2 nw battery cabinets and ancillary electrical work. Open the permit page	$40,000
Dec 15, 2021	Expired or cancelled withdrawn Feb 2024	1111 California St		cell: relocate 4 antennas,install 2 new anteenas,isntall 4 new radios,remove 1 (e) elec cab and install 2 (n) ones with anncillary electrical equip inside.upgrade power from 100a to 200a and install 200a/c power panel. Details Permit 202112154513 Status withdrawn Filed Dec 15, 2021 Declared cost $25,000 Address 1111 California St cell: relocate 4 antennas,install 2 new anteenas,isntall 4 new radios,remove 1 (e) elec cab and install 2 (n) ones with anncillary electrical equip inside.upgrade power from 100a to 200a and install 200a/c power panel. Open the permit page	$25,000
Apr 12, 2021	Expired or cancelled cancelled Jan 2026	2500 Noriega St		modification to unmanned telecommunications facility. remove 3 tma, antenna & diplexer. install 6 new antenna + 4 rru. install 4 diplexers. remove 6 rus. install 6x12 hcs. install 6160 cabinet. 1 new battery, cabinet, mounts. 1 psu voltage booster. Details Permit 202104128321 Status cancelled Filed Apr 12, 2021 Declared cost $25,000 Address 2500 Noriega St modification to unmanned telecommunications facility. remove 3 tma, antenna & diplexer. install 6 new antenna + 4 rru. install 4 diplexers. remove 6 rus. install 6x12 hcs. install 6160 cabinet. 1 new battery, cabinet, mounts. 1 psu voltage booster. Open the permit page	$25,000
Mar 22, 2021	Expired or cancelled cancelled Jan 2026	499 Dolores St		modification to (e) telecommunication facility. remove 3 antenna. install 11 antenna. install 13 radio units. install 5 new batteries. remove 12 ru's. install 12 northstar batteries. Details Permit 202103227044 Status cancelled Filed Mar 22, 2021 Declared cost $25,000 Address 499 Dolores St modification to (e) telecommunication facility. remove 3 antenna. install 11 antenna. install 13 radio units. install 5 new batteries. remove 12 ru's. install 12 northstar batteries. Open the permit page	$25,000
Feb 17, 2021	Never finaled issued Nov 2022, no final	2160 Van Ness Av	Mastec Network Solutions Inc	t-mobile modification. (e)unmanned telecom facility. remove 3 antennas/replace w/6(n) antennas in radomes. install 6(n) pipe mounts. remove 9(e) radios, 3(e) triplexers & 3(e) tma's. install 3 diplexers, 2 cabinets, 1 bb6630. 1 6x12 hcs. 1 bb6630. 1 b6648, 1 xmv. upgrade electrical 200amp Details Permit 202102174815 Status issued Filed Feb 17, 2021 Permit issued Nov 10, 2022 Declared cost $25,000 Address 2160 Van Ness Av t-mobile modification. (e)unmanned telecom facility. remove 3 antennas/replace w/6(n) antennas in radomes. install 6(n) pipe mounts. remove 9(e) radios, 3(e) triplexers & 3(e) tma's. install 3 diplexers, 2 cabinets, 1 bb6630. 1 6x12 hcs. 1 bb6630. 1 b6648, 1 xmv. upgrade electrical 200amp Open the permit page	$25,000
Dec 9, 2020	Expired or cancelled withdrawn Jul 2025	2001 Union St		modification to telecom facility. install 3 octo antennas, 3 quad antennas, 3 air6449 antenna, radios, bb6630 (2) + 6645. 3 hcs hybro cable. 9 wall mount antenna. Details Permit 202012090657 Status withdrawn Filed Dec 9, 2020 Declared cost $25,000 Address 2001 Union St modification to telecom facility. install 3 octo antennas, 3 quad antennas, 3 air6449 antenna, radios, bb6630 (2) + 6645. 3 hcs hybro cable. 9 wall mount antenna. Open the permit page	$25,000
Nov 19, 2020	Completed final sign-off Jun 2021	965 Mission St	Mastec Network Solutions Inc	t-mobile. modification to an unmanned telecommunications facility: remove 3 antennas. install 3 air6449 antennas. install 3 rrhs. install 3 hcs 6x12 awg 40m. install bb6648 and bb6630. propose new radome for beta sector. Details Permit 202011199264 Status complete Filed Nov 19, 2020 Permit issued Mar 29, 2021 Final sign-off Jun 14, 2021 Declared cost $25,000 Address 965 Mission St t-mobile. modification to an unmanned telecommunications facility: remove 3 antennas. install 3 air6449 antennas. install 3 rrhs. install 3 hcs 6x12 awg 40m. install bb6648 and bb6630. propose new radome for beta sector. Open the permit page	$25,000
Nov 10, 2020	Completed final sign-off Jun 2021	1094 Revere Av	Mastec Network Solutions Inc	proposed mod to an (e) unmanned t-mobile facility consisting of - installing 3(n) air 6449 b41 antennas, 1 per sector; remove and replace 3 radios 1 per sector; install (3) 6x12 hcs 6awg 40m; install 2 cabinets; install 3 bb6630 and (1) bb6648 Details Permit 202011108636 Status complete Filed Nov 10, 2020 Permit issued Mar 26, 2021 Final sign-off Jun 10, 2021 Declared cost $25,000 Address 1094 Revere Av proposed mod to an (e) unmanned t-mobile facility consisting of - installing 3(n) air 6449 b41 antennas, 1 per sector; remove and replace 3 radios 1 per sector; install (3) 6x12 hcs 6awg 40m; install 2 cabinets; install 3 bb6630 and (1) bb6648 Open the permit page	$25,000
Nov 9, 2020	Completed final sign-off Feb 2022	2560 Marin St	Mastec Network Solutions Inc	t-mobile-modificaiton to (e) t-mobile telecom facility replace (3) air 21 wotj 3 air 6449 antennas; replace (3) rfs dual w/ (3) octo antennas; remove (3) & install (6) radios; install (2) (n) cabinets; install 2 bb 6630s and (1) bb 6648; install (2) 6x12 hcs 10awg 20 m Details Permit 202011098524 Status complete Filed Nov 9, 2020 Permit issued Jun 24, 2021 Final sign-off Feb 7, 2022 Declared cost $25,000 Address 2560 Marin St t-mobile-modificaiton to (e) t-mobile telecom facility replace (3) air 21 wotj 3 air 6449 antennas; replace (3) rfs dual w/ (3) octo antennas; remove (3) & install (6) radios; install (2) (n) cabinets; install 2 bb 6630s and (1) bb 6648; install (2) 6x12 hcs 10awg 20 m Open the permit page	$25,000
Oct 29, 2020	Completed final sign-off Apr 2022	199 Leland Av	Mastec Network Solutions Inc	modification to an (e) wireless installation: remove & replace 2 (e) antannas w/ 2 (n) ones. install 2 radios near antennas, 2 (n) tmas, 6 (n) 7/8" coax cables. remove (2) diplexers. install 3 (n) 6x12 hcs 10awg. install 1 (n) bb6630. remove (e) antenna support & install new shrouds for screening. Details Permit 202010297690 Status complete Filed Oct 29, 2020 Permit issued Sep 29, 2021 Final sign-off Apr 29, 2022 Declared cost $25,000 Address 199 Leland Av modification to an (e) wireless installation: remove & replace 2 (e) antannas w/ 2 (n) ones. install 2 radios near antennas, 2 (n) tmas, 6 (n) 7/8" coax cables. remove (2) diplexers. install 3 (n) 6x12 hcs 10awg. install 1 (n) bb6630. remove (e) antenna support & install new shrouds for screening. Open the permit page	$25,000
Oct 20, 2020	Completed final sign-off Dec 2021	735 Montgomery St	Mastec Network Solutions Inc	t-mobile. r/r 3 antennaes, remove 6 tuus, install 3 rru, install 3 6449 antennas,install 3 bb units, battery cabinet. Details Permit 202010206930 Status complete Filed Oct 20, 2020 Permit issued Jul 16, 2021 Final sign-off Dec 3, 2021 Declared cost $25,000 Address 735 Montgomery St t-mobile. r/r 3 antennaes, remove 6 tuus, install 3 rru, install 3 6449 antennas,install 3 bb units, battery cabinet. Open the permit page	$25,000
Oct 20, 2020	Expired or cancelled withdrawn Oct 2024	513 Valencia St		remove and replace 4 antennas, install 3 antennas & rru, install bb cabinet, install frp, upgrade to 200a main breaker. Details Permit 202010206984 Status withdrawn Filed Oct 20, 2020 Declared cost $25,000 Address 513 Valencia St remove and replace 4 antennas, install 3 antennas & rru, install bb cabinet, install frp, upgrade to 200a main breaker. Open the permit page	$25,000
Sep 17, 2020	Expired or cancelled cancelled Mar 2023	888 Innes Av		the proposed project will involve the modification of an existing unmanned telecom facility: remove 3 antennas and diplexers. install 6 new antennas. diplexers and 9 new rrus. install 2 bb630, bb648, 1 6160 bat cab, 1 b6160 bat cab and 3 6x12 hcs fiberoptic cables. Details Permit 202009174402 Status cancelled Filed Sep 17, 2020 Address 888 Innes Av the proposed project will involve the modification of an existing unmanned telecom facility: remove 3 antennas and diplexers. install 6 new antennas. diplexers and 9 new rrus. install 2 bb630, bb648, 1 6160 bat cab, 1 b6160 bat cab and 3 6x12 hcs fiberoptic cables. Open the permit page