Block 3735, lot 017
50 Hawthorne St
- City’s use
- Commercial Office
- Built
- 1964
- Stories
- 3
- Lot
- 21,936 sq ft
- Zoning
- C3S
- Construction type
- NA
From the assessor's latest secured roll, which can lag recent work. Lot plans, zoning and planning history on the city’s Property Information Map
Permits filed here
60 permits filed for this property since 2000.
| Filed | Outcome | Address | Contractor | Work described on the permit | Declared cost |
|---|---|---|---|---|---|
| Jul 22, 2026 | Completed final sign-off Aug 2026 | 50 Hawthorne St | Corporate Sign Systems | 6 evacuation maps per sffd code; 3 on 1st floor and 3 on the 3rd floor.Details
6 evacuation maps per sffd code; 3 on 1st floor and 3 on the 3rd floor. | $1,200 |
| Jun 1, 2026 | Completed final sign-off Sep 2026 | 50 Hawthorne St | Principal Builders Inc. | revision to 202603187875 to include: reconfigured 2 hr wall layout on floor 1. structural steel posts for motorized door on floor 01. conference 318 to become shared office 318.Details
revision to 202603187875 to include: reconfigured 2 hr wall layout on floor 1. structural steel posts for motorized door on floor 01. conference 318 to become shared office 318. | |
| May 26, 2026 | Completed final sign-off Sep 2026 | 50 Hawthorne St | Principal Builders Inc. | l1-3: deferred mep for pa# 202603187875Details
l1-3: deferred mep for pa# 202603187875 | $713,232 |
| Apr 27, 2026 | Completed final sign-off Sep 2026 | 50 Hawthorne St | Principal Builders Inc. | 3rd floor interior tenant improvement to include new barista bar serving coffee, tea and grab & go prepackaged food. new back of house catering area.Details
3rd floor interior tenant improvement to include new barista bar serving coffee, tea and grab & go prepackaged food. new back of house catering area. | $48,000 |
| Mar 18, 2026 | Completed final sign-off Sep 2026 | 50 Hawthorne St | Principal Builders Inc. | all floors: interior tenant improvement to include non-structural partitions, new ceilings, and associated electrical, lighting, plumbing, and new finishes throughout area of work. new millwork elements and new furniture. mep, fire life safety to be deferred submittal.Details
all floors: interior tenant improvement to include non-structural partitions, new ceilings, and associated electrical, lighting, plumbing, and new finishes throughout area of work. new millwork elements and new furniture. mep, fire life safety to be deferred submittal. | $940,000 |
| Feb 2, 2026 | Expired or cancelled cancelled Apr 2026 | 50 Hawthorne St | Bcci Construction Company | stair infill from floors 1-3 in vacant commercial building. new concrete floor infill & supporting structure at openings.Details
stair infill from floors 1-3 in vacant commercial building. new concrete floor infill & supporting structure at openings. | $350,000 |
| Feb 28, 2020 | Never finaled issued Feb 2020, no final | 50 Hawthorne St | Johnson Controls Fire | fire alarm on 1st fl: add 3 notification appliances and relocate 1 notification appliance, add 1 smoke detector in fire alarm system 1st fl 201911268213Details
fire alarm on 1st fl: add 3 notification appliances and relocate 1 notification appliance, add 1 smoke detector in fire alarm system 1st fl 201911268213 | $100,000 |
| Jan 15, 2020 | Completed final sign-off Apr 2020 | 50 Hawthorne St | Anderson, Rowe & Buckley, Inc. | 1st fl: existing fire sprinkler system ti - rleocate 4 pendent, add 9 pendent, relocate 7 upright, & add 2 upright sprinklers. ref pa #201911268213.Details
1st fl: existing fire sprinkler system ti - rleocate 4 pendent, add 9 pendent, relocate 7 upright, & add 2 upright sprinklers. ref pa #201911268213. | $6,500 |
| Jan 8, 2020 | Completed final sign-off May 2020 | 50 Hawthorne St | Principal Builders Inc. | t-24 to install new ductwork and hvac equipment, power and lighting phase refer to pa 2019-1126-8213 for ti work on 1st flDetails
t-24 to install new ductwork and hvac equipment, power and lighting phase refer to pa 2019-1126-8213 for ti work on 1st fl | $65,670 |
| Dec 11, 2019 | Never finaled issued Dec 2019, no final | 50 Hawthorne St | street spaceDetails
street space | ||
| Nov 26, 2019 | Completed final sign-off May 2020 | 50 Hawthorne St | Principal Builders Inc. | 1st floor: demo construction of partitions, glazing, millwork, doors, & finishes on extg t.i. mep on seperate permit. maher n/a.Details
1st floor: demo construction of partitions, glazing, millwork, doors, & finishes on extg t.i. mep on seperate permit. maher n/a. | $172,773 |
| Sep 9, 2019 | Never finaled issued Sep 2019, no final | 50 Hawthorne St | street spaceDetails
street space | ||
| Mar 21, 2018 | Completed final sign-off Oct 2018 | 50 Hawthorne St | 1st floor: revision to app#201712217139 for an interim office area and breakroom. revision also incudes addtion of furred wall and ceiling in elevator lobbyDetails
1st floor: revision to app#201712217139 for an interim office area and breakroom. revision also incudes addtion of furred wall and ceiling in elevator lobby | ||
| Mar 16, 2018 | Completed final sign-off Apr 2018 | 50 Hawthorne St | Johnson Controls Fire | 3rd flr - fire alarm - install 1 new power supply, 4 new strobes. 15 new speakers/strobes, and 2 new smk det ref 201712217137Details
3rd flr - fire alarm - install 1 new power supply, 4 new strobes. 15 new speakers/strobes, and 2 new smk det ref 201712217137 | $11,300 |
| Mar 16, 2018 | Completed final sign-off Apr 2018 | 50 Hawthorne St | Johnson Controls Fire | 2nd flr - fire alarm - new power supply, 9 new strobes. 22 new speaker/strobes and 2 new smk det ref 201712217138Details
2nd flr - fire alarm - new power supply, 9 new strobes. 22 new speaker/strobes and 2 new smk det ref 201712217138 | $20,000 |
| Mar 12, 2018 | Never finaled issued Apr 2018, no final | 50 Hawthorne St | Ad Art Inc. | install electric projecting double faced signDetails
install electric projecting double faced sign | $10,000 |
| Mar 12, 2018 | Never finaled issued Apr 2018, no final | 50 Hawthorne St | Ad Art Inc. | installed ground electric single faced signDetails
installed ground electric single faced sign | $5,000 |
| Mar 12, 2018 | Never finaled issued Apr 2018, no final | 50 Hawthorne St | Ad Art Inc. | installed ground electric single faced signDetails
installed ground electric single faced sign | $5,000 |
| Feb 28, 2018 | Never finaled issued Feb 2018, no final | 50 Hawthorne St | Anderson, Rowe & Buckley, Inc. | 1,2,3 flr -(e) fire sprinkler 62 relocate pendents, 98 added pendents, 59 relocate sprinklers upright, 29 added uprights, 41 plugged outlets- bracing verified, new hyraclice calc's for first floor protection aboive and below ceiling.Details
1,2,3 flr -(e) fire sprinkler 62 relocate pendents, 98 added pendents, 59 relocate sprinklers upright, 29 added uprights, 41 plugged outlets- bracing verified, new hyraclice calc's for first floor protection aboive and below ceiling. | $93,750 |
| Dec 21, 2017 | Never finaled issued Feb 2018, no final | 50 Hawthorne St | Principal Builders Inc. | 1st fl ti. partial demo of (e) partitions. (n) partitions. mep. (n) finishes, (n) louver on 1st floor level (kaplan) to provide ventilation for (n) showers. fire safety under seperate permit.Details
1st fl ti. partial demo of (e) partitions. (n) partitions. mep. (n) finishes, (n) louver on 1st floor level (kaplan) to provide ventilation for (n) showers. fire safety under seperate permit. | $1,200,000 |
| Dec 21, 2017 | Completed final sign-off Aug 2018 | 50 Hawthorne St | Principal Builders Inc. | 2nd fl ti. partial demo of partitions. (n) partitions. mep. (n) finishes. fire safety under seperate permit.Details
2nd fl ti. partial demo of partitions. (n) partitions. mep. (n) finishes. fire safety under seperate permit. | $1,200,000 |
| Dec 21, 2017 | Completed final sign-off Aug 2018 | 50 Hawthorne St | Principal Builders Inc. | 3rd fl ti. partial demo of partitions. (n) partitions. mep. (n) finishes. fire safety under seperate permit.Details
3rd fl ti. partial demo of partitions. (n) partitions. mep. (n) finishes. fire safety under seperate permit. | $1,200,000 |
| Nov 20, 2017 | Completed final sign-off Aug 2018 | 50 Hawthorne St | Principal Builders Inc. | 1,2,3 floors:interior demo of partitions, doors, glazing, millwork and finishes. space to remain vacant per ab-017 and ada will be addresses on future ti permit. no exterior work.Details
1,2,3 floors:interior demo of partitions, doors, glazing, millwork and finishes. space to remain vacant per ab-017 and ada will be addresses on future ti permit. no exterior work. | $315,000 |
| Jun 23, 2015 | Never finaled issued Jun 2015, no final | 50 Hawthorne St | Bcci Construction Company | assembly permit for 1st floor multipurpose room. not for construction. ref bpa# 2014-0408-2674.Details
assembly permit for 1st floor multipurpose room. not for construction. ref bpa# 2014-0408-2674. | |
| May 22, 2015 | Never finaled issued May 2015, no final | 50 Hawthorne St | Johnson Controls Fire | fire alarm ti provide and install 1 new speaker to basement levelDetails
fire alarm ti provide and install 1 new speaker to basement level | $2,500 |
| May 6, 2015 | Completed final sign-off Jun 2015 | 50 Hawthorne St | Bcci Construction Company | roof penthouse. install a transformer in the penthouse to provide power to roof heaters.Details
roof penthouse. install a transformer in the penthouse to provide power to roof heaters. | $20,000 |
| Feb 19, 2015 | Never finaled issued Feb 2015, no final | 50 Hawthorne St | Martinelli Environmental Graph | to erect non electric ground signDetails
to erect non electric ground sign | $10,000 |
| Feb 19, 2015 | Completed final sign-off Feb 2015 | 50 Hawthorne St | Golden Gate Fire Protection Inc | relocate 2 pendent sprinklers and 1 upright on the 1st flr. t.i. # 201501307094Details
relocate 2 pendent sprinklers and 1 upright on the 1st flr. t.i. # 201501307094 | $1,500 |
| Feb 11, 2015 | Completed final sign-off Mar 2015 | 50 Hawthorne St | Bcci Construction Company | electrical work associated with approved app#201501307094. add power and modify lighting.Details
electrical work associated with approved app#201501307094. add power and modify lighting. | $20,000 |
| Jan 30, 2015 | Completed final sign-off Mar 2015 | 50 Hawthorne St | Bcci Construction Company | 1st flr: scope of work includes interior tenant improvements on a portion of the 1st flr in a 3-story bldg as follows: convert existing 1,490 sf recreation room to open office area with one small private office. life safety deferred.Details
1st flr: scope of work includes interior tenant improvements on a portion of the 1st flr in a 3-story bldg as follows: convert existing 1,490 sf recreation room to open office area with one small private office. life safety deferred. | $45,000 |
| Dec 22, 2014 | Completed final sign-off Mar 2015 | 50 Hawthorne St | Bcci Construction Company | occupant load verification for public assembly permit, based on pa # 2014-04-21-3718, per sffd field inspector requirment.Details
occupant load verification for public assembly permit, based on pa # 2014-04-21-3718, per sffd field inspector requirment. | |
| Dec 16, 2014 | Never finaled issued Dec 2014, no final | 50 Hawthorne St | street spaceDetails
street space | ||
| Nov 5, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Johnson Controls Fire | fire alarm t.i. to roof to include: (1) nac extender panel, (4) smoke detectors, (1) heat detector, (3) relay modules, (2) strobes & (3) wp speaker strobes, permit appn. 201406178591 (arch)Details
fire alarm t.i. to roof to include: (1) nac extender panel, (4) smoke detectors, (1) heat detector, (3) relay modules, (2) strobes & (3) wp speaker strobes, permit appn. 201406178591 (arch) | $6,000 |
| Oct 14, 2014 | Completed final sign-off Nov 2014 | 50 Hawthorne St | Johnson Controls Fire | fire alarm as-builts to permit application 2014-0723-1970r1 floors 1-3.Details
fire alarm as-builts to permit application 2014-0723-1970r1 floors 1-3. | |
| Oct 14, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | revision to pa 201404213718 to reduce deck areaDetails
revision to pa 201404213718 to reduce deck area | |
| Sep 19, 2014 | Never finaled issued Sep 2014, no final | 50 Hawthorne St | street space permitDetails
street space permit | ||
| Sep 19, 2014 | Never finaled issued Sep 2014, no final | 50 Hawthorne St | street space permitDetails
street space permit | ||
| Aug 25, 2014 | Never finaled issued Aug 2014, no final | 50 Hawthorne St | street spaceDetails
street space | ||
| Aug 19, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | revision to pa# 201404082674 adding non-load bearing partition @ basmenet, add doors & closet at 1/f reception, remove millwork.Details
revision to pa# 201404082674 adding non-load bearing partition @ basmenet, add doors & closet at 1/f reception, remove millwork. | $35,000 |
| Aug 12, 2014 | Completed final sign-off Nov 2014 | 50 Hawthorne St | Golden Gate Fire Protection Inc | relocate e fdc on roof to new location next to new elevator. add 1 upgright head at new stairs on roof level. ti 2014-04-21-3718.Details
relocate e fdc on roof to new location next to new elevator. add 1 upgright head at new stairs on roof level. ti 2014-04-21-3718. | $1,000 |
| Jul 23, 2014 | Completed final sign-off Nov 2014 | 50 Hawthorne St | Johnson Controls Fire | fire alarm tenant improvement- floors 1-3 to include 2 nacp panels, 14 smoke detectors, 3 duct detectors, 11 strobes, 76 speaker strobes, 1 monitor module and 4 relay modules. approved arch t.i.- 2014-04-08-2673, 2014-04-08-2674 & 2014-04-08-2675.Details
fire alarm tenant improvement- floors 1-3 to include 2 nacp panels, 14 smoke detectors, 3 duct detectors, 11 strobes, 76 speaker strobes, 1 monitor module and 4 relay modules. approved arch t.i.- 2014-04-08-2673, 2014-04-08-2674 & 2014-04-08-2675. | $60,000 |
| Jul 3, 2014 | Completed final sign-off Nov 2014 | 50 Hawthorne St | Golden Gate Fire Protection Inc | relocate 37 pendent sprinklers & 1 upright on 1/f. relocate 29 pendent sprinklers & 9 uprights on 2/f. relocate 39 pendent sprinklers & 7 uprights on 3/f. t.i. pa# 201404082673, 201404082674 & 201404082675Details
relocate 37 pendent sprinklers & 1 upright on 1/f. relocate 29 pendent sprinklers & 9 uprights on 2/f. relocate 39 pendent sprinklers & 7 uprights on 3/f. t.i. pa# 201404082673, 201404082674 & 201404082675 | $63,860 |
| Jun 17, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | roof hvac unit and lighting and electrical associated with approved t.i. permit # 201404293718. ac unit for elevator machineDetails
roof hvac unit and lighting and electrical associated with approved t.i. permit # 201404293718. ac unit for elevator machine | $22,000 | |
| Apr 30, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | mechanical and electrical work associated with 201404082673 including new vav boxes, fans, heat pumps, lightingDetails
mechanical and electrical work associated with 201404082673 including new vav boxes, fans, heat pumps, lighting | $675,000 |
| Apr 30, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | mechanical and electrical work associated with 201404082675 including new vav boxes, fans, heat pumps, lightingDetails
mechanical and electrical work associated with 201404082675 including new vav boxes, fans, heat pumps, lighting | $675,000 |
| Apr 30, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | mechanical and electrical work associated with 201404082674 including new vav boxes, fans, heat pumps, lightingDetails
mechanical and electrical work associated with 201404082674 including new vav boxes, fans, heat pumps, lighting | $490,000 |
| Apr 28, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | structural work associated with approved pa # 201404213718 & 201404082673, elevator shaft.Details
structural work associated with approved pa # 201404213718 & 201404082673, elevator shaft. | $90,000 |
| Apr 21, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | new roof deck on existing roof, extension of existing stairs & new elevator from 3rd floor to roof, structural work under seperate permit.Details
new roof deck on existing roof, extension of existing stairs & new elevator from 3rd floor to roof, structural work under seperate permit. | $696,300 |
| Apr 18, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | structural work associated with approved app#201404082673 and 201404082675 including stair and platform.Details
structural work associated with approved app#201404082673 and 201404082675 including stair and platform. | $625,000 |
| Apr 17, 2014 | Never finaled issued Apr 2014, no final | 50 Hawthorne St | street space & mta parking meterDetails
street space & mta parking meter | ||
| Apr 8, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | interior tenant improvement on first floor including new partitions, doors, ceilings and millwork. mechanical, electrical, structural, life safety & sprinklers under seperate permit.Details
interior tenant improvement on first floor including new partitions, doors, ceilings and millwork. mechanical, electrical, structural, life safety & sprinklers under seperate permit. | $1,000,920 |
| Apr 8, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | interior tenant improvement on the 2nd flr including new partitions ,doors, & ceilings , millwork, mechanincal ,electrical, structural, ls & sprinklers under seperate permit.Details
interior tenant improvement on the 2nd flr including new partitions ,doors, & ceilings , millwork, mechanincal ,electrical, structural, ls & sprinklers under seperate permit. | $1,171,320 |
| Apr 8, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | 3rd floor: t.i. work including new partitions, door and ceilings and millwork. mechanical electrical structural. life safety and sprinklers under seperate permit.Details
3rd floor: t.i. work including new partitions, door and ceilings and millwork. mechanical electrical structural. life safety and sprinklers under seperate permit. | $1,171,320 |
| Feb 14, 2014 | Completed final sign-off Jan 2015 | 50 Hawthorne St | Bcci Construction Company | pre-construction demolition under ab017-including demolition of interior non-load bearing walls, doors and portion of floors and roof for future work.n/a for the interim controls #428-13Details
pre-construction demolition under ab017-including demolition of interior non-load bearing walls, doors and portion of floors and roof for future work.n/a for the interim controls #428-13 | $55,000 |
| Feb 10, 2014 | Never finaled issued Feb 2014, no final | 50 Hawthorne St | streeet space and mta parkingDetails
streeet space and mta parking | ||
| Dec 23, 2013 | Completed final sign-off Feb 2014 | 50 Hawthorne St | Illuminated Creations Dba Ellis & Ellis | erect non-electric single faced hangine sign.Details
erect non-electric single faced hangine sign. | $3,000 |
| Dec 23, 2013 | Completed final sign-off Mar 2014 | 50 Hawthorne St | Illuminated Creations Dba Ellis & Ellis | to erect electric, wall, single face sign. erect an illuminated single faced wall sign.Details
to erect electric, wall, single face sign. erect an illuminated single faced wall sign. | $5,600 |
| Aug 8, 2013 | Never finaled issued Aug 2013, no final | 50 Hawthorne St | Eagle Bay Enterprises, Inc (Dba Garnett | install 10 evac signs on floors b, 1,2,3Details
install 10 evac signs on floors b, 1,2,3 | $3,000 |
| Feb 25, 2013 | Never finaled issued Feb 2013, no final | 50 Hawthorne St | change addres from 40 hawthorn st to 50 hawthorn st at block 3735, lot 017.Details
change addres from 40 hawthorn st to 50 hawthorn st at block 3735, lot 017. | ||
| Sep 28, 2012 | Never finaled issued Feb 2013, no final | 40 Hawthorne St | Plant Construction Company Lp | remove (e) precast concrete facade & install (n) curtain wall system, revisions to entrance lobby layout & 1st fl toilet rm layout, relocate exterior entrance stair & revise garden court layout. no increase in office space.Details
remove (e) precast concrete facade & install (n) curtain wall system, revisions to entrance lobby layout & 1st fl toilet rm layout, relocate exterior entrance stair & revise garden court layout. no increase in office space. | $735,000 |
Find contractors for work like this
Starts from the last permit filed here; change it to describe your own project. Results cover every building: the city does not class this parcel as single-family, two-family or apartments.