Block 1111, lot 002

270 Masonic Ave

City’s use: Commercial Misc
Lot: 9,997 sq ft
Zoning: RM1
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

26 permits filed for this property since 2000.

CompletedIn progressNever finaledExpired or cancelled

Filed	Outcome	Address	Contractor	Work described on the permit	Declared cost
Dec 22, 2025	In progress issued Dec 2025	270 Masonic Av		recommencement and completion work approved under pa# 202312051966 Details Permit 202512222401 Status issued Filed Dec 22, 2025 Permit issued Dec 22, 2025 Declared cost $9,500 Address 270 Masonic Av recommencement and completion work approved under pa# 202312051966 Open the permit page	$9,500
Apr 8, 2024	In progress filed Apr 2024, not yet issued	270 Masonic Av	Plant Construction Co, Lp	mandatory seismic retrofit of existing building per sfbc section 503.11.1. to allow for future non structural alternations including partitions, ceilings, and mep upgrades for more than two thirds of the building. (e) bldg is currently unoccupied. Details Permit 202403228446 Status approved Filed Apr 8, 2024 Declared cost $4,128,602 Address 270 Masonic Av mandatory seismic retrofit of existing building per sfbc section 503.11.1. to allow for future non structural alternations including partitions, ceilings, and mep upgrades for more than two thirds of the building. (e) bldg is currently unoccupied. Open the permit page	$4,128,602
Dec 5, 2023	In progress issued Dec 2023	270 Masonic Av	Plant Construction Co, Lp	the structural scope is an addition to the parking deck rehabilitation permit under 202309196898 Details Permit 202312051966 Status issued Filed Dec 5, 2023 Permit issued Dec 8, 2023 Address 270 Masonic Av the structural scope is an addition to the parking deck rehabilitation permit under 202309196898 Open the permit page
Sep 19, 2023	Never finaled issued Sep 2023, no final	270 Masonic Av	Plant Construction Co, Lp	remove & reinstall (n)concrete surface wear of parking lot deck. (n) insulation & waterproof. repl 2/f open terrace waterproof/paving w/(n) insulation, waterproof & pedestal paving system. remove glass panel steel canopy & steel support dumnage at main entry due to life safety concerns. Details Permit 202309196898 Status issued Filed Sep 19, 2023 Permit issued Sep 27, 2023 Declared cost $975,000 Address 270 Masonic Av remove & reinstall (n)concrete surface wear of parking lot deck. (n) insulation & waterproof. repl 2/f open terrace waterproof/paving w/(n) insulation, waterproof & pedestal paving system. remove glass panel steel canopy & steel support dumnage at main entry due to life safety concerns. Open the permit page	$975,000
Aug 30, 2019	Expired or cancelled withdrawn Jun 2023	270 Masonic Av		voluntary seismic per asce 41-13 tier iii. Details Permit 201908300310 Status withdrawn Filed Aug 30, 2019 Declared cost $2,000,000 Address 270 Masonic Av voluntary seismic per asce 41-13 tier iii. Open the permit page	$2,000,000
Jul 16, 2012	Completed final sign-off Dec 2012	270 Masonic Av	Simplexgrinnell Lp.	basement - fire alarm system t.i adding 1-relay for security door release. Details Permit 201207164941 Status complete Filed Jul 16, 2012 Permit issued Jul 16, 2012 Final sign-off Dec 21, 2012 Declared cost $3,000 Address 270 Masonic Av basement - fire alarm system t.i adding 1-relay for security door release. Open the permit page	$3,000
Jun 16, 2010	Completed final sign-off Aug 2011	270 Masonic Av		chiller plant replacement. the existing 140 nominal ton chiller located in the basement mech. room 014 is to be removed and replaced with four new modular chillers nominal 40 tons each total 160 tons. Details Permit 201006164597 Status complete Filed Jun 16, 2010 Permit issued Nov 24, 2010 Final sign-off Aug 24, 2011 Declared cost $500,000 Address 270 Masonic Av chiller plant replacement. the existing 140 nominal ton chiller located in the basement mech. room 014 is to be removed and replaced with four new modular chillers nominal 40 tons each total 160 tons. Open the permit page	$500,000
Oct 3, 2008	Never finaled issued Oct 2008, no final	270 Masonic Av	Simplex Grinnell	basement level-install 1 nac panel, 6 wall mounted strobes, 12 wall mounted horn/strobes, 1 smoke sensor, 2 duct smoke detectors, relocate 1 electromagnetic door holder Details Permit 200810033336 Status issued Filed Oct 3, 2008 Permit issued Oct 7, 2008 Declared cost $20,000 Address 270 Masonic Av basement level-install 1 nac panel, 6 wall mounted strobes, 12 wall mounted horn/strobes, 1 smoke sensor, 2 duct smoke detectors, relocate 1 electromagnetic door holder Open the permit page	$20,000
Jul 25, 2008	Never finaled issued Jul 2008, no final	270 Masonic Av	Simplex Grinnell	add 7 upright sprinkler to new hallway, add 1 pendant to new hallway. relocate 2 pendent @ meeting room, 2 at staff breakroom & 2 at supply room. add 1 pendent to electrical room. total added 9 sprinkler heads & relocated 6. Details Permit 200807257606 Status issued Filed Jul 25, 2008 Permit issued Jul 25, 2008 Declared cost $6,542 Address 270 Masonic Av add 7 upright sprinkler to new hallway, add 1 pendant to new hallway. relocate 2 pendent @ meeting room, 2 at staff breakroom & 2 at supply room. add 1 pendent to electrical room. total added 9 sprinkler heads & relocated 6. Open the permit page	$6,542
Nov 2, 2007	Completed final sign-off Jan 2009	270 Masonic Av		basement - renovation of existing basement level equipment & storage rooms including addition of new accessible restrooms. electrical, mechanical, & sprinkler & fire alarm work under separate permits. Details Permit 200711027212 Status complete Filed Nov 2, 2007 Permit issued Nov 6, 2007 Final sign-off Jan 6, 2009 Declared cost $250,000 Address 270 Masonic Av basement - renovation of existing basement level equipment & storage rooms including addition of new accessible restrooms. electrical, mechanical, & sprinkler & fire alarm work under separate permits. Open the permit page	$250,000
Feb 12, 2007	Expired or cancelled expired Aug 2008	270 Masonic Av	Stripe Inc. Dba Garnett Sign Studio	sign permit - wall, single faced. Details Permit 200702123929 Status expired Filed Feb 12, 2007 Permit issued Feb 12, 2007 Address 270 Masonic Av sign permit - wall, single faced. Open the permit page
May 23, 2006	Completed final sign-off Apr 2009	270 Masonic Av	Northstar Fire Protection Inc	change sprinkler layout from 2 sprinklers to 1 sprinkler in a freezer with no ssu-none commbustible. Details Permit 200605232215 Status complete Filed May 23, 2006 Permit issued May 23, 2006 Final sign-off Apr 20, 2009 Address 270 Masonic Av change sprinkler layout from 2 sprinklers to 1 sprinkler in a freezer with no ssu-none commbustible. Open the permit page
Apr 11, 2006	Completed final sign-off Jul 2006	270 Masonic Av	Xl Construction, Corporation	revision to approved pa# 2006/03/23/7367. new 3'-0" high x 12" wide buttress @ 7'-2 1/2" o.c. attached to (e) concrete retaining wall. Details Permit 200604118688 Status complete Filed Apr 11, 2006 Permit issued Apr 11, 2006 Final sign-off Jul 19, 2006 Declared cost $2,000 Address 270 Masonic Av revision to approved pa# 2006/03/23/7367. new 3'-0" high x 12" wide buttress @ 7'-2 1/2" o.c. attached to (e) concrete retaining wall. Open the permit page	$2,000
Mar 23, 2006	Completed final sign-off Jul 2006	270 Masonic Av	Xl Construction, Corporation	add to (e) permit: new structurals foundation for owners equipment (condensers for freezer s) owners requipment condenser units to be under separate permit. Details Permit 200603237367 Status complete Filed Mar 23, 2006 Permit issued Mar 23, 2006 Final sign-off Jul 19, 2006 Declared cost $8,000 Address 270 Masonic Av add to (e) permit: new structurals foundation for owners equipment (condensers for freezer s) owners requipment condenser units to be under separate permit. Open the permit page	$8,000
Mar 16, 2006	Completed final sign-off Jun 2006	270 Masonic Av	Xl Construction, Corporation	revise 200511228850, 200601313445. install walk in freezer and piping (new). sprinkler under separte permit Details Permit 200603166787 Status complete Filed Mar 16, 2006 Permit issued Apr 21, 2006 Final sign-off Jun 26, 2006 Declared cost $95,000 Address 270 Masonic Av revise 200511228850, 200601313445. install walk in freezer and piping (new). sprinkler under separte permit Open the permit page	$95,000
Feb 3, 2006	Expired or cancelled expired Jan 2009	270 Masonic Av	Simplex Grinnell	fire alarm improv for 1st floor o.t.p. lab 2 new manuel pull stations added to exist addressable initiating circuit 3 new horn/strobes and 1 new strobe added to 1 new notification circuit. Details Permit 200602033717 Status expired Filed Feb 3, 2006 Permit issued Feb 3, 2006 Declared cost $3,000 Address 270 Masonic Av fire alarm improv for 1st floor o.t.p. lab 2 new manuel pull stations added to exist addressable initiating circuit 3 new horn/strobes and 1 new strobe added to 1 new notification circuit. Open the permit page	$3,000
Jan 31, 2006	Expired or cancelled expired Aug 2008	270 Masonic Av	Airco Commercial Services Inc	Details Permit 200601313445 Status expired Filed Jan 31, 2006 Permit issued Jan 31, 2006 Declared cost $30,000 Address 270 Masonic Av Open the permit page	$30,000
Dec 28, 2005	Completed final sign-off Apr 2009	270 Masonic Av	Northstar Fire Protection Inc	add and relocate sprinkler heads for tenant improvement on ground floor. Details Permit 200512281152 Status complete Filed Dec 28, 2005 Permit issued Dec 28, 2005 Final sign-off Apr 20, 2009 Declared cost $2,500 Address 270 Masonic Av add and relocate sprinkler heads for tenant improvement on ground floor. Open the permit page	$2,500
Nov 22, 2005	Completed final sign-off Jul 2006	270 Masonic Av		renovationt to existing lab area on ground floor reconfigure walle for labs and new offices. (componets lab) electrical & plumbing under separate permit. Details Permit 200511228850 Status complete Filed Nov 22, 2005 Permit issued Nov 22, 2005 Final sign-off Jul 19, 2006 Declared cost $312,000 Address 270 Masonic Av renovationt to existing lab area on ground floor reconfigure walle for labs and new offices. (componets lab) electrical & plumbing under separate permit. Open the permit page	$312,000
Feb 3, 2005	Completed final sign-off May 2005	270 Masonic Av	Xl Construction, Corporation	minor modifications to appl#200405113517 increase in interior ramp length due to scope(from 18'to19' Details Permit 200502034765 Status complete Filed Feb 3, 2005 Permit issued Feb 3, 2005 Final sign-off May 11, 2005 Declared cost $11,000 Address 270 Masonic Av minor modifications to appl#200405113517 increase in interior ramp length due to scope(from 18'to19' Open the permit page	$11,000
Sep 8, 2004	Expired or cancelled expired Aug 2008	270 Masonic Av	Simplex Grinnell	adding 1 (n) power supply, 1 (n) duct detector, 5 (n) smoke detetors, 2 (n) pull stations, Details Permit 200409083544 Status expired Filed Sep 8, 2004 Permit issued Oct 1, 2004 Declared cost $14,000 Address 270 Masonic Av adding 1 (n) power supply, 1 (n) duct detector, 5 (n) smoke detetors, 2 (n) pull stations, Open the permit page	$14,000
Aug 18, 2004	Completed final sign-off May 2005	270 Masonic Av	Ayoob & Peery Plumbing Co Inc	addition to existing fire sprinkler system at 2nd floor Details Permit 200408181924 Status complete Filed Aug 18, 2004 Permit issued Oct 28, 2004 Final sign-off May 11, 2005 Declared cost $32,000 Address 270 Masonic Av addition to existing fire sprinkler system at 2nd floor Open the permit page	$32,000
May 11, 2004	Completed final sign-off May 2005	270 Masonic Av		renovation to extg space on 2nd floor to provide labs ada restrooms and updated offices Details Permit 200405113517 Status complete Filed May 11, 2004 Permit issued Sep 24, 2004 Final sign-off May 11, 2005 Declared cost $1,700,000 Address 270 Masonic Av renovation to extg space on 2nd floor to provide labs ada restrooms and updated offices Open the permit page	$1,700,000
Nov 12, 2003	Completed final sign-off Dec 2003	270 Masonic Av		renew#9817943 (duplicate of 9911639 for final only Details Permit 200311129944 Status complete Filed Nov 12, 2003 Permit issued Nov 12, 2003 Final sign-off Dec 3, 2003 Address 270 Masonic Av renew#9817943 (duplicate of 9911639 for final only Open the permit page
Aug 14, 2003	Completed final sign-off Nov 2003	270 Masonic Av	Mazzys Fire Protection	renew app #200103134146 Details Permit 200308142093 Status complete Filed Aug 14, 2003 Permit issued Aug 14, 2003 Final sign-off Nov 24, 2003 Address 270 Masonic Av renew app #200103134146 Open the permit page
Mar 13, 2001	Expired or cancelled expired Sep 2001	270 Masonic Av	Mazzys Fire Protection	add 20 sprinkler atvarious locations Details Permit 200103134146 Status expired Filed Mar 13, 2001 Permit issued Mar 13, 2001 Declared cost $8,000 Address 270 Masonic Av add 20 sprinkler atvarious locations Open the permit page	$8,000

Who worked here

Everyone with a license on these permits, by role, with how many permits each is on.

Contractors: Simplex Grinnell (4), Xl Construction, Corporation (4), Plant Construction Co, Lp (3), Mazzys Fire Protection (2), Northstar Fire Protection Inc (2), Airco Commercial Services Inc, Ayoob & Peery Plumbing Co Inc, Simplexgrinnell Lp., Stripe Inc. Dba Garnett Sign Studio
Architects: Hugh Cotter (3), Michael Mace
Engineers: Matthew Frantz (2), Brad Friederichs, Chris Case, John Sinclair Leys, Mike Narouzi, Santiago T. Quitevis

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.