468 West 23Rd Street, Borough of Manhattan

July 14th, 2020 Name of Landmark Building Type of Presentation Month xx, year Public Hearing

The current proposal is: Preservation Department – Item 3, LPC-20-09535 468 West 23rd Street, Borough of Manhattan

How to Testify Via Zoom: https://us02web.zoom.us/j/89088348352?pwd=b2FRd3VaUjlZMDl3TUt6RjlmVmExUT09 Meeting ID: 890 8834 8352 Password: 866423 Note: If you want to testify on an item, join the Zoom webinar at the agenda’s “Be Here by” time By Phone: 1 646-558-8656 (about an hour in advance). When the Chair US (New York) 877-853-5257 (Toll free) indicates it’s time to testify, “raise your hand” via US 888 475 4499 (Toll free) the Zoom app if you want to speak (*9 on the phone). Those who signed up in advance will be called first. 468 West 23rd Street APARTMENT #2F THROUGH-WALL AC GRILLE JULY 14, 2020

PRESENTATION TO LANDMARK PRESERVATION COMISSION

Construction Date: 1857 Architect / Builder: Morgan Pindar (builder) Owner / Developer: Morgan Pindar Major Alteration(s): 1927 Alteration Architect(s): Not determined Style(s): Italianate Material(s): Brownstone, Stucco, Half Timber

Building Type: Row House Original Use: Residential Tax Block: 720 Tax Lot: 7502 ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND 24 x 36

GENERAL NOTES SPECIAL INSPECTIONS

1. ALL SUBCONTRACTORS SHALL BE COORDINATED WITH THE WORK OF THE TRADES. 468 WEST 23RD STREET, 2F FIRE RESISTANT PENETRATIONS AND JOINTS BC 1704.27 2. ALL WORK SHALL CONFORM TO THE REQUIREMENTS OF THE NEW YORK CITY BUILDING CODE, FIRE DEPARTMENT RULES NEW YORK, NY 10011 AND REGULATIONS, UTILITY COMPANY REQUIREMENTS, AND THE BEST TRADE PRACTICES. 3. BEFORE COMMENCING WORK, THE CONTRACTOR SHALL FILE ALL REQUIRED INSURANCE CERTIFICATES WITH THE PROGRESS INSPECTIONS ISSUED: JULY 30, 2019 DEPARTMENT OF BUILDINGS, OBTAIN ALL REQUIRED PERMITS, AND PAY ALL FEES REQUIRED BY THE GOVERNING NEW ALT. TYPE 2 YORK CITY AGENCIES. 4. MINOR DETAILS NOT USUALLY SHOWN OR SPECIFIED, BUT REQUIRED FOR PROPER CONSTRUCTION OF ANY PART OF THE FINAL DIRECTIVE 14 OF 1975 WORK SHALL BE INCLUDED AS IF THEY WERE INDICATED IN THE DRAWINGS. 5. THE CONTRACTOR SHALL COORDINATE ALL WORK PROCEDURES WITH THE STIPULATIONS OF LOCAL AUTHORITIES, DRAWING LIST BUILDING MANAGEMENT OR BOARD OF DIRECTORS. NEW DRAWING NO CHANGES THIS DWG 6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PROTECTION OF ALL CONDITIONS AND MATERIALS WITHIN THE 3" EXIST. VENT TO ROOF PROPOSED CONSTRUCTION AREA. THE CONTRACTOR SHALL DESIGN AND INSTALL ADEQUATE SHORING AND BRACING REVISED DRAWING OMITTED FOR ALL STRUCTURAL OR REMOVAL TASKS. THE CONTRACTOR SHALL HAVE SOLE RESPONSIBILITY FOR ANY DAMAGE ROOF 09.05.2019 12.23.2020 468 WEST 23RD, APT 2F T: (646) 801-7725 OSSO ARCHITECTURE, DPC OR INJURIES CAUSED BY OR DURING THE EXECUTION OF THE WORK. ANY SITE MONITORING TO BE UNDER GC NEW YORK, NY 10011 RESPONSIBILITY 3" DWG NO. DRAWING TITLE 7. THE CONTRACTOR SHALL LAY OUT HIS OWN WORK, AND SHALL PROVIDE ALL DIMENSIONS REQUIRED FOR OTHER 1 1/2" EXIST. 2" EXIST. 1 1/2" TRADES: PLUMBING, ELECTRICAL, ETC. LAV TOILET NEW ARCHITECTURAL 8. PLUMBING WORK SHALL BE PERFORMED BY PERSONS LICENSED IN THEIR TRADES, WHO SHALL ARRANGE FOR AND SHOWER T-000.00 TITLE SHEET, RISER DIAGRAMS OBTAIN THROUGH THE DEPARTMENT OF BUILDINGS ALL REQUIRED PERMITS, INSPECTIONS AND REQUIRED SIGN OFFS. STALL 9. ELECTRICAL WORK SHALL BE PERFORMED BY PERSONS LICENSED IN THEIR TRADES, WHO SHALL ARRANGE FOR AND G-001.00 ACCESSIBILITY NOTES 2ND FLOOR OBTAIN THROUGH THE BUREAU OF ELECTRICAL CONTROL ALL REQUIRED PERMITS, INSPECTIONS AND REQUIRED SIGN A-100.00 DEMOLITION & CONSTRUCTION PLANS OFFS. 2" 3" 2" 3" CO 10. THE CONTRACTOR SHALL DO ALL CUTTING, PATCHING, REPAIRING AS REQUIRED TO PERFORM ALL OF THE WORK A-200.00 FRONT FACADE ELEVATION AND DECORATIVE SCREEN INDICATED ON THE DRAWINGS, AND ALL OTHER WORK THAT MAY BE REQUIRED TO COMPLETE THE JOB. 1 12" 11. ALL PIPING AND WIRING SHALL BE REMOVED TO A POINT OF CONCEALMENT AND SHALL BE PROPERLY CAPPED OR EXIST. DW EXIST. SINK 1 1/2" PLUGGED. (RELOCATE) (RELOCATE) EXIST. CLOTHES SCOPE OF WORK: APARTMENT 2F: INTERIOR RENOVATIONS CONSISTING OF BUILDING DEPARTMENT NOTES: WASHER (RELOCATE) 1ST FLOOR PARTITIONS, FINISHES AND PLUMBING WORK. 1. REQUIRED EGRESS SHALL NOT BE OBSTRUCTED AT ANY TIME DURING CONSTRUCTION. 2" 2" CO 2. ALL REQUIRED RATINGS WILL BE MAINTAINED DURING CONSTRUCTION. NO CHANGE OT USE, EGRESS OR OCCUPANCY 3. HEALTH REQUIREMENTS SPECIFIED IN THE 2008 CODE SHALL BE COMPLIED WITH. CO 4. ALL WORK SHALL COMPLY468 WITH WESTAPPLICABLE LAWS 23RD RELATING TO ASBESTOSSTREET AND LEAD PAINT SITE REMOVAL. INFORMATION2" 5. ALL DEBRIS AND PRODUCTS OF DEMOLITION NOT DESIGNATED FOR REUSE SHALL BE REMOVED FROM PREMISES AND LEGALLY DISPOSED OF. CELLAR EXIST 4" WASTE STACK 6. NOISE LEVELS SHALL COMPLY WITH ALL APPLICABLE ASPECTS OF NOISE CONTROL CODE. AREA OF NEW WORK: APARTMENT 2F REVISION 7. PLANS FILED AS AN ALT-2 APPLICATION FOR ALTERATIONS OF AN EXISTING 5 STORY APARTMENT BUILDING. NO CHANGE NO: DATE: REMARK: IN OCCUPANCY. PLUMBING RISER DIAGRAM AREA OF CORRIDOR AND STAIRS 8. ALL CONSTRUCTION SHALL BE PERFORMED IN STRICT ACCORDANCE WITH THE RULES OF THE CITY OF NEW YORK 3 NTS BUILDING CODE AND ALL OTHER NEW YORK CITY AGENCIES AND DEPARTMENTS HAVING JURISDICTION OF ANY PORTION OR SPECIFIC PHASE OF WORK. 9. PROJECT TO BE FILED UNDER 1968 NYC BUILDING CODE, WITH 2014 REGULATIONS FOR FIRE PROTECTION, ELEVATORS, ALL WASTE AND VENT LINES TO BE CAST IRON AND MECHANICAL, PLUMBING, FUEL GAS, APPLIANCES/EQUIPMENT. CONFORM TO ALL LOCAL LAWS; WASTE/ VENT LINES 10. AC 28-101.4.3 PROPOSED WORK CAN BE FILED UNDER 1968 CODE LESS EXCEPTIONS LISTED. PROPOSED WORK LISTED TO HAVE NEOPRENE GASKET COUPLINGS W/ MIN. 2 UNDER EXCEPTIONS WILL BE IN COMPLIANCE WITH 2014 CODE. CLAMPS EACH SIDE; SUPPLY LINES TO BE COPPER W/ 11. AC 28-101.4.5 PROPOSED WORK DOES NOT INCREASE FLOOR SURFACE AREA. COPPER COUPLINGS, 95-5 TIN ANTIMONY SOLDER 12. BC 27-115 IN THAT PROPOSED COST OF ALTERATIONS IS LESS THAN 60 PERCENT OF THE BUILDING VALUE, PROPOSED WORK CAN BE FILED IN COMPLIANCE WITH 1968 CODE. 13. CONSTRUCTION CLASSIFICATION: AS PER 26-254 CLASS 3 NFP BUILDING IS LIMITED TO SIX STORIES, 75 FEET AND 3,000 SQUARE FEET FOOT PRINT. PROPOSED ENLARGEMENT IS WITHIN THESE LIMITATIONS. 14. 26-241 COMPLIANCE: 14.1. EXTERIOR WALLS MUST BE MASONRY SITE INFORMATION: 14.2. MINIMUM ONE-HOUR, COMPLIES 14.3. INTERIOR FRAMING MAY BE WOOD OR UNPROTECTED STEEL, COMPLIES 14.4. FLOORS NEED NOT BE RATED ADDRESS: 468 West 23rd Street, #2F 14.5. ALL SHAFTS REQUIRED TO BE TWO-HOUR RATED NEW YORK, NY 10011 15. 26-273 PROPOSED OPEN STAIR IS PERMITTED AS OF RIGHT IN THAT THE STRUCTURE DOES NOT EXCEED THREE 23RD STREET BLOCK: 720 STORIES OVER A BASEMENT. GAS DRYER (RELOCATE) LOT: 7502 16. PLAN APPROVAL: OWNER IS RESPONSIBLE FOR OBTAINING PLAN APPROVAL FROM THE BUILDING DEPARTMENT DRYER COOK GAS COOKTOP YEAR OF CONSTRUCTION: 1900 THROUGH THE ARCHITECT'S OFFICE. (RELOCATE) HEIGHT: 57 FEET 17. THE GENERAL CONTRACTOR SHALL OBTAIN ANY AND ALL PERMITS REQUIRED FOR THE PERFORMANCE OF THIS WORK TOP AND PAY ALL FEES IN CONNECTION THEREWITH. ZONING MAP: 8B 18. BC 105.1 BUILDING PERMITS OR COPIES SHALL BE POSTED IN A CONSPICUOUS PLACE AT THE WORK SITE, VISIBLE TO ZONING DISTRICT: R7B EXIST 11" GAS LINE THE PUBLIC FOR THE DURATION OF WORK OR THE USE AND OPERATION OF THE EQUIPMENT, OR UNIT OPERATION OF 4 LOT SIZE: 22' X 98.75' PERMIT. NUMBER OF FLOORS: 4 NEW 3" GAS LINE 19. BC 1091 INSPECTIONS REQUIRED BY THE THE CODE OR BY THE DEPARTMENT DURING THE PROGRESS OF WORK MAY BE 4 CONSTRUCTION CLASS: 3, PRIOR TO 1968 CODE PERFORMED ON BEHALF OF THE OWNER BY APPROVED INSPECTION AGENCIES OR, IF APPLICABLE, BY SPECIAL 1ST FLOOR OCCUPANCY GROUP: RES INSPECTIONS. ZONING GROUP: 2 20. BC ARTICLE 116 CONSTRUCTION ORCHELSEA WORK FOR WHICH HISTORIC A PERMIT ISDISTRICT REQUIRED SHALL EXTENSION BE SUBJECT TO INSPECTIONSLP- IN ACCORDANCE WITH THE CODE1 AND SUCH CONSTRUCTION WORK SHALL REMAIN ACCESSIBLE AND EXPOSED FOR 23RD STREET BETWEEN 9TH AND 10TH AVENUES EXIST. GAS RISER TO EXIST. METER 45' INSPECTION PURPOSES UNTIL THE REQUIRED INSPECTION IS COMPLETED. IN CELLAR CELLAR 21. ALL MATERIALS, ASSEMBLIES AND METHODS OF CONSTRUCTION REGULATED BY THE CODE AND NOT LISTED ABOVE SHALL BE SUBJECT TO CONTROLLED INSPECTION BY THE PERSON SUPERINTENDING THE CONSTRUCTION. SIGNED 22' COPIES OF ALL TEST AND INSPECTION REPORTS SHALL BE FILED THROUGH THE ARCHITECT WITH THE DEPARTMENT OF THIS PROPERTY IS GAS RISER DIAGRAM BUILDINGS. 2 10TH AVENUE NOT LOCATED IN A NTS S.F.H.A FIRESTOPPING:

CONCEALED SPACES WITHIN PARTITIONS, WALLS, FLOORS, ROOFS, STAIRS, FURRING PIPE SPACES, COLUMN EXPOSURES, TITLE SHEET, RISER DIAGRAMS ETC. SHALL BE FIRESTOPPED (EXCEPT WHERE CONCEALED SPACE IS SPRINKLERED OR IS CONSTRUCTION AS A SHAFT) AS FOLLOWS: PROJECT: A. CONSTRUCTION GROUP 1: WITH NON-COMBUSTIBLE MATERIAL THAT CAN BE SHAPED 4 STORIES, NOTE: THERE MUST BE A 24/48-HOUR LEAK TEST PERFORMED AND WITNESSED HEIGHT: 57'-0" 65'-4" 468 WEST 23RD STREET, 2F B. NON-COMBUSTIBLE FIRESTOPPING MAY BE MASONRY SET IN MORTAR CONCRETE 3/4" MORTAR OR PLASTER ON BY THE BUILDING SUPERINTENDENT. NEW YORK, NY 10011 NON-COMBUSTIBLE LATH, PLASTER BOARD AT LEAST 3/8" THICK, SHEET METAL OF AT LEAST 0.0002" THICK, SOLID WEB LATICRETE 9135 WATERPROOFING MEMBRANE 1 METAL STRUCTURAL MEMBERS, MINERAL FIBER BOARD, MINERAL SLAB OR ROCKWOOL WHEN COMPACTED INTO CONFINED 6lbs./sq.ft. COMMON PIG LEAD WORKED INTO CORNERS (NOT CUT), TO EXTEND A MINIMUM OF SIX INCHES UP 2" TEMPERED GLASS, VERIFY HEIGHT PER SPACES EACH WALL AND OVER THE TOP OF THE CURB. DO NOT PENETRATE PAN OR WATERPROOFING WITH SCREWS ELEVATIONS FROM CURB LEVEL DOWN. CONCRETE CURB BASE TRENCH DRAIN LEAD SHOWER PAN TO RUN OVER CURB AND 1 MORTAR BED, SLOPE 4" PER FOOT TOWARDS DRAIN WATERPROOFING MEMBRANE Date: JAN 23RD, 2020 ENERGY CODE COMPLIANCE STATEMENT NYCECC2016: METAL LATHE LATICRETE 9135 WATERPROOFING Scale: TO THE BEST OF MY KNOWLEDGE, BELIEF AND PROFESSIONAL JUDGEMENT, THIS PROJECT IS LATICRETE 9135 WATERPROOFING MEMBRANE MEMBRANE EXEMPT FROM NYCECC 2016 COMPLIANCE BECAUSE THE COMMISSION NOTES FOR PURPOSES OF

THE NEW YORK CITY ENERGY CONSERVATION CODE, NYCECC 2016 C501.6, THE PROPERTY HAS SEAL + SIGNATURE: BEEN DETERMINED LISTED ON THE STATE AND/OR NATIONAL REGISTER(S) OF HISTORIC PLACES. PLOT PLAN 2 N NTS REVIEW SITE CONDITIONS FOR ACTUAL DRAIN 5 PLOT PLAN CONFIGURATION CONTINUE 8" GENIE MAT RST-15 SOUNDMATTTING UNDER SHOWER 1 NTS ARCHITECT:

NEW SHOWER DETAIL OSSO ARCHITECTURE 4 1-1/2" = 1'-0" 180 CARLTON AVENUE #3 BROOKLYN, NY 11205 T-000.00 PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-001 SHEET 1 of 4

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND 468 WEST 23RD STREET EXISTING PHOTOS

EXISTING - VIEW OF WINDOW AC EXISTING - VIEW FROM STOOP 2 3

APARTMENT #2F

APARTMENT #2F

ARCHITECT: EXISTING - VIEW FROM STOOP 4 OSSO ARCHITECTURE 1 468 WEST 23RD STREET - EXISTING FACADE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-002

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND 24 x 36

LEGEND:

EXISTING WALL, FIXTURES AND FINISHES TO BE REMOVED 15'-9" EXISTING WALL TO REMAIN

PLAN 4'-0" NEW WALL

ESXISTING FLOOR AND STRUCTURE TO BE 17'-2" DEMOLISHED EXISTING DOOR TO BE REMOVED

OPEN TO BELOW T: (646) 801-7725 OSSO ARCHITECTURE, DPC BROOKLYN, NY 11205 EXISTING DOOR TO REMAIN 180 CARLTON AVE, SUITE #3 1-02 LIVING

8'-11" NEW DOOR

6'-1" 6'-1" CL 13'-3" GENERAL NOTES

UP 27'-10" 2'-10" 2'-10" A. ALL KEY DIMENSIONS TO FINISH FACE OF GWB/PLASTER UNLESS OTHERWISE INDICATED. B. PATCH ALL EXISTING WALL TO REMAIN. CL 9'-0" DN C. ALL NEW DOORS AND FRAMES TO BE PRIMED AND PAINTED IN 2'-10" FIN. FLOOR SHOP. FINAL COATS TO BE APPLIED IN FIELD PER ARCHITECT'S SPECIFICATION. 20'-0" D. DEMOLISH AND REMOVE ALL FIXTURES, FINISHES AND 1-01 KITCHEN 12'-9" APPLIANCES IN BATHROOM AND KITCHEN. 9'-2" E. ALL NEW FLOORS THROUGHOUT. BATH TYPICAL INTERIOR PARTITION F. NO CUTTING OR CHANNELING OF EXISTING FRAMING ALLOWED 5 3" = 1'-0" 2 HR RATED UL U411 G. NO PLUMBING, INCLUDING GAS WORK WILL PENETRATE 8'-7" 8'-7" 2-01 SLEEPING REF DEMISING WALLS CL · SPECIFIED BASEBOARD TO MATCH EXG H. NO RELOCATION OF ANY RISER SERVING OTHER TENANTS OR 1 12'-7" · 8" SKIMCOAT THE BUILDING AS A WHOLE WILL REQUIRE RELOCATION. 6'-11" 4'-8" 2'-0" 1 CL CL · 2" GWB I. NEW PLUMBING LINES TO BE RUN FROM EXISTING STACKS WITH 1 REVISION WA/DR · 2" GWB NEW SHOT OFF VALVES FOR ALL NEW OR REPLACED FIXTURES. NO: DATE: REMARK: 8'-7" 5 NO PIPING TO BE RUN UNDER FLOORS. · 3 8" MTL. STUD @ 16" O.C. WITH SEALANT 01 05 / 08 / 20 DOB REV 7'-4" BEADS @ TOP AND BOTTOM TRACK, TYP. · MINERNAL WOOL BATTS, FILL THE STUD CAVITIES. LEGEND: · 1" GWB DEMOLITION PLAN, 1ST FLOOR DEMOLITION 2ND FLOOR 2 EXISTING WALL, FIXTURES AND FINISHES TO BE REMOVED 1 4 1/4" = 1'-0" 3 1/4" = 1'-0" CL · " GWB

2'-7" 2 1 · 8" SKIMCOAT EXISTING WALL TO REMAIN · SPECIFIED BASEBOARD TO MATCH EXG NEW WALL

468 WEST 23RD STREET PROPOSED FLOOR PLANS EXISTING DOOR TO BE REMOVED

EXISTING DOOR TO REMAIN N

15'-9" NEW DOOR LIGHT AND AIR CALCULATIONS

LIVING & KITCHEN: 370 SF LIGHT REQ(10%): 37 SF PROPOSED: 38 SF > 37 SF - OK AIR REQ(5%): 18.5 SF PLUMBING AND APPLIANCE SCHEDULE: F1: SURFACE MOUNTED, BY OWNER PROPOSED: 19 SF > 18.5 SF - OK SK-# F2: PENDANT, BY OWNER SINK LV-# BATHROOM SINK 4'-0" F3: 4" CIRCULAR RECESSED DOWNLIGHTS - LITELINE WC-# WALL MOUNTED TOILET S SLM4I 4" SLIMLED INDIRECT, ROUND, DIM TO WARM S 3'-2" SH-# S SHOWER UP RECESSED DOWNLIGHT TB-# PROVIDE TUB EXISTING FAR TO BE F3W: WET LOCATION 3" CIRCULAR RECESSED SUPPORT FOR RECATEGORIZED AS MECH. DOWNLIGHTS - USAI 2323 BEVELED MINI TRIMLESS, FAN CLOSET AND FAR TRANSFERRED WARM GLOW DIMMING SEE DIAGRAMS FOR OPEN TO BELOW REF-# REFRIGERATOR CALCULATIONS F4: LINEAR LED STRIP - WAC FLEXLINE LED-HVT, INCLUDE LENS HOUSING WHEN VISIBLE DW-# DISHWASHER 1-02 LIVING SEE MECH. 25'-7" RA-# PLANS F5: WALL MOUNTED SCONCE, BY OWNER GAS RANGE LIGHT AND AIR CALCULATIONS HD-# RANGE HOOD 10'-11" 10'-8"

STAIR 10'-2" F6: LINEAR CLOSET LIGHT - HERA LIGHTING WD-# WASHER/ DRYER STRINGER - S BEDROOM: 175 SF STICK3/24/WW JAMB (2)1.75x11.25 LIGHT REQ(10%): 17.5 SF 2-01A F7: WALL MOUNTED MAGNIFYING MIRROR WITH 17'-2" PROPOSED: 38 SF > 17.5 SF - OK MECH. CL EQUIPMENT LIGHT - NAMEEK'S #AR7703, SATIN NICKEL AIR REQ(5%): 8.75 SF 3'-2" 14'-0" PROPOSED: 19 SF > 8.75 SF - OK 5'-10" 7'-3" F8: KLUS KOZUS TAPE-IN LED EXTRUSION – ARTICLE SMOKE & CARBON MONOXIDE S NUMBER B7823NA OPEN, 42" GLASS GAURDRAIL DETECTOR S GFI DN PRIVACY CURTAIN U.C. FLITCH PLATE AT 16" EQUIPMENT O.C.=(2)1.75x7.25 LVL WITH 2'-6" 20'-11"

FREEZER 3'-0" .375x7 STEEL PLATE, DOUBLE 2'-8" FAR FROM NEW MECH. CLOSET LIGHTING CONTROL SWITCHES TO BE LUTRON DIVA, ALL

S SWITCHES TO BE DIMMABLE ZONING CODE ARTICAL 1, CHAPTER 212-10, FLOOR AREA (8):

FLITCH PLATE AT EDGE TRANSFERRED, SEE DIAGRAMS

S S FZ-1 S S CONSTRUCTION PLANS FOR CALCULATIONS DEMOLITION &

GFI S BEDROOM However, the floor area of a building shall not include: DW DW-1 NEW ELEC. FAN 2-01 HARDWIRED SMOKE & CARBON MONOXIDE DETECTOR GFI PROVIDE 4'-0" PROJECT:

S BOX 100AMP LV-1 (8) floor space used for mechanical equipment, except that 9'-8" S SUPPORT FOR 1-PHASE 2'-9" S such exclusion shall not apply in R2A Districts, and in R1-2A, R2X, KITCHEN FAN SK-1 1-01 BATH SPEAKER R3, R4, or R5 Districts, such exclusion shall be limited to 50 square EXISTING F.A.R TO 468 WEST 23RD STREET, 2F

2-02 11'-4" S feet for the first dwelling unit, an additional 30 square feet for the BE TRANSFERRED NEW YORK, NY 10011 SINK second dwelling unit and an additional 10 square feet for each BELOW WC-2 additional dwelling unit. For the purposes of calculating floor space

MAIN ENTRY 8'-0" 2'-9" used for mechanical equipment, building segments on a single S POWER/TELEPHONE/DATA

GFI COOKTOP S zoning lot may be considered to be separate buildings; WALL OVEN WA-1 NEW DEDICATED OUTLET RF-1 DR-1 5'-7" 14'-0" 43.66 SQ FT NEW DUPLEX OUTLET, LUTRON DECORA Date: MAY 08TH, 2020 REF WA/DR COATS 2'-6" SH-1 CALCULATION TO TRANSFERRED F.A.R

GFI NEW SWITCHED OUTLET, LUTRON DECORA Scale: S (EXISTING) CLOSET TO MECH. CLOSET = 43.66 10'-8" 8'-7" GFI NEW GFI OUTLET, LUTRON DECORA (NEW) TRANSFERRED FAR 14.66 + 18.25 = 32.91 OV-1 43.66 > 32.91 THEREFORE NEW FLOOR SPACE CT-1 NEW QUAD OUTLET, LUTRON DECORA LIGHT SWITCH 24" WIDE CLOTHES WASHER SERVICE ENTRY ALLOWED AT BEDROOM LEVEL SEAL + SIGNATURE: HD-1 UNDER CABINETS TO HAVE SHUT OFF VALVES NEW CABLE/TEL/DATA DIST. POINT 5'-0" WIC INSTALLED IN CONJUNCTION 5'-10" 7'-3" WITH WATER SENSOR VALVES ELECTRIC PANEL CONSTRUCTION PLAN, 1ST FLOOR AND INSTALLED OVER A DRIP CONSTRUCTION 2ND FLOOR 2 1/4" = 1'-0" PAN, DRYER IS NON VENTING 1 1/4" = 1'-0" TRANSFERRED F.A.R TRANSFERRED F.A.R 14.66 SQ FT 18.25 SQ FT 2'-6" 2'-6"

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205 A-100.01

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-003 SHEET 3 of 4

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND 468 WEST 23RD STREET SCOPE OF WORK

SCOPE OF WORK TO INCLUDE: REMOVAL OF EXISTING WINDOW AIR CONDITIONER

FACADE WORK TO INCLUDE: ONE NEW THRU-WALL AC GRILLE ABOVE EXISTING WINDOW

3'-0" PROPOSED NEW THRU-WALL AC GRILLE 1'-7" 3'-3" " 2 1 10 1'-11" 6'-8" 6'-8" 6'-8" 6'-3" 6'-3" 6'-8" EXISTING WINDOW AC UNIT 1'-8" " " 2 2 " " " " 1 1 2 2 2 2 1 1 1 1 2'-0 2'-0 1'-7 1'-7 1'-7 1'-7 1'-2"

EXISTING FACADE PROPOSED GRILLE 1 2 ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-005

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND 468 WEST 23RD STREET PROPOSED CHANGE TO FACADE

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-009

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND THRU-WALL AC GRILL DETAIL AND LOUVER SPEC ESU-154S

NEW 3/8" X 12" X 24" GALVANIZED STEEL PLATE LINTEL. SPACING BETWEEN CONDENSER RUN 6" MIN. BEYOND OPENING ON EACH SIDE Thinline Louver AND SLEEVE TO BE FILLED WITH ROCKWOOL OR EQUAL. Frameless MEMBRANE FLASHING TO COVER STEEL LINTEL SEALED JOINT AROUND LOUVER WITH BACKER ROD AND Application and Design RESILIENT NON HARDENING CAULK TO MATCH MORTAR. ESU-154S is a frameless ultra thinline stationary louver commonly used SPLIT SYSTEM CONDENSER PER MECHANICAL NEW CUSTOM FABRICATED LOUVER TO BE PAINTED TO MATCH BUILDING APPROVED for interior or exterior applications where high free area and low airflow EQUIPMENT SCHEDULE. INSTALL PER MFR'S SPECIFICATION. FACE OF LOUVER TO BE FLUSH WITH EXTERIOR WALL. TYPICAL resistance is required. The narrow depth makes this product ideal for INSTRUCTIONS WITH ACOUSTICAL SLEEVE. LOUVERS TO BE EXTRUDED .062", 6036-TS HORIZONTAL FIN BLADE TYPE AS installation into thru-wall air conditioning units. (1) OF (4) 30 DUROMETER MASON INDUSTRIES SUPER W PADS. MANUFACTURED BY GREEEHECK, MODEL ESID-430 (LOUVER BLADE DEPTH IS 1"-1 PADS TO BE INTERPOSED BENEATH EACH CORNER OF 1/2", BLADE ANGLE 40-45 DEGREES, BLADE SPACING 3/4" OPEN AREA) OR APPROVED EQUAL, PROVIDED MIN. 1/4" GAP WITH OUTER WALL AND CAULK TO MATCH MORTAR. CONDENSER UNIT AND SLEEVE. CONDENSER SHALL NOT 1'-7" 3 PHYSICALLY CONTACT THE SLEEVE AND EXTERIOR LOUVER. PROVIDE A MINIMUM GAP OF 8" BETWEEN THE Standard Construction ACCESS DOOR IN WALL. REFER TO FACE OF CONDENSER UNIT AND LOUVER. Frame ...... Frameless ARCHITECTURAL DETAIL FOR ENCLOSURE DETAILS SEALED JOINT AROUND LOUVER WITH BACKER ROD AND RESILIENT NON HARDENING CAULK TO MATCH MORTAR. Blades ...... Thinline style, heavy gauge aluminum, 0.050 in. nominal wall thickness, positioned at 48º angles on SLOPE CHASSIS TO EXTERIOR 1/8" PER FT. approximately ¾ in. centers PROVIDE SLOPED MORTAR BED BELOW Construction . . .Mechanically fastened Finish ...... Mill Minimum Size . .12 ½ in. W x 6 in. H Maximum Single Section Size . . .96 in. W x 48 in. H

Options (at additional cost) • A variety of architectural finishes including: Kynar paint Baked enamel paint Clear anodize Integral color anodize

THRU-WALL LOUVER SPEC 1'-2" 2

*Width and height dimensions furnished approximately ¼ inch under size.

SECTION DETAIL AT THRU-WALL 1

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-010

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND HISTORICAL PHOTOS

#460 #462 #464 #464 #466 #468

APARTMENT #2F

1915 PHOTO OF 462-464 WEST 23RD, FROM NEW YORK HISTORICAL 1940 TAX PHOTO SOCIETY DIGITAL COLLECTION. FIRE ESCAPES ADDED, STOOP REMOVED, COMMERCIAL USE ADDED AT THESE BUILDINGS WERE ALL BUILT BY THE SAME ARCHITECT AT FIRST FLOOR ARCHITECT: THE SAME TIME AS 468 W 23RD, AND WERE PART OF A ROW. OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-004

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND HISTORICAL PHOTO

#468 #470 #464 #466 #468 #470

APARTMENT #2F APARTMENT #2F

1981 LANDMARKS DESIGNATION PHOTO OF 468-470 WEST CURRENT PHOTO OF 464-470 WEST 23RD STREET 23RD STREET THE STOOP, ENTRY DOOR AND FACADE DETAILS HAVE MORE RECENTLY ARCHITECT: BEEN REPLACED, WITH DIFFERENT DETAILING THAN THE ORIGINAL OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-004

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND OTHER OPTIONS THAT WERE CONSIDERED

A THRU-WALL LOUVER WAS CONSIDERED ABOVE THE WINDOWS AS PART OF A DECORATIVE EXTENSION OF THE WINDOW TRIM.

3'-0" THESE OPTIONS WERE DEEMED TOO GREAT OF A

CHANGE TO THE HISTORIC FACADE,1'-7" AND MORE 3'-3" " 2 1 10

DIFFICULT TO REVERSE IF THE AC UNITS ARE 1'-11" CHANGED IN THE FUTURE. 6'-8" 6'-8" 6'-8" 6'-3" 6'-3" " " 2 2 " " " 1 1 2 2 2 1 1 1 2'-0 2'-0 1'-7 1'-7 1'-7

ALTERNATE OPTION ALTERNATE OPTION 1 2

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-006

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND OTHER OPTIONS THAT WERE CONSIDERED

3'-0" A THRU-WALL LOUVER WAS CONSIDERED BELOW THE 1'-7" 3'-3"

" WINDOW. 2 1 10 1'-11" THERE IS NOT ENOUGH HEIGHT TO FIT A THRU-WALL UNIT UNDER THE EXISTING WINDOW SILL, SO THE WINDOW SILL WOULD NEED TO BE RAISED BY 5”, AND 6'-8" 6'-8" 6'-8" 6'-3" 6'-3" WINDOW AND BROWNSTONE TRIM REPLACED, FURTHER REDUCING THE LIGHT & AIR FOR THE HABITABLE SPACES A THRU-WALL LOUVER WAS CONSIDERED BELOW " " 2 2 " " " 1 1 2 2 2

1 1 ON THE INTERIOR, AND INCREASING FINANCIAL1 BURDEN THE WINDOW. 2'-0 2'-0 1'-7 1'-7 ON1'-7 THE BUDGET. THIS OPTION REQUIRES REPLACEMENT OF BOTH WINDOWS, AS WELL AS ADDITIONAL REMOVAL OF THE EXISTING MASONRY WALL AND RE- STORING THE SURROUNDING TRIM, INCREASING THE FINANCIAL BURDEN ON THE BUDGET.

ALTERNATE OPTION ALTERNATE OPTION 3 4 ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-007

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND NEIGHBORHOOD FACADE REFERENCES

EXAMPLES OF OTHER AC GRILLES ON WEST 23RD STREET

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-011

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND NEIGHBORHOOD FACADE REFERENCES

258 WEST 23RD STREET, EXAMPLE OF THRU-WALL GRILLES 256 WEST 23RD STREET, EXAMPLE OF THRU-WALL GRILLES

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-012

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND NEIGHBORHOOD FACADE REFERENCES

466 WEST 23RD STREET - THRU-WALL GRILLES 466 WEST 23RD STREET - THRU-WALL GRILLES ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-013

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND EXISTING VS. PROPOSED RENDERINGS

330 WEST 23RD STREET - EXAMPLE OF LOUVER THAT IS PAINTED SAME COLOR AS FACADE. THIS ONE IS ALMOST FLUSH WITH THE FACADE AS WELL. WE PROPOSE TO INSALL A LOUVER THAT IS COMPLETELY FLUSH WITH THE FACADE.

468 WEST 23RD STREET - EXISTING WINDOW UNIT 468 WEST 23RD STREET - PROPOSED FLUSH LOUVER ABOVE AC WINDOW

ARCHITECT: OSSO ARCHITECTURE 180 CARLTON AVENUE #3 BROOKLYN, NY 11205

PROJECT NAME: THROUGH-WALL AC GRILLE DRAWING NUMBER : A-014

PROJECT ADDRESS: 468 WEST 23RD STREET #2F, NEW YORK, NY NOTES: PUBLIC HEARING (LPC AND July 14th, 2020 Name of Landmark Building Type of Presentation Month xx, year Public Hearing

The current proposal is: Preservation Department – Item 3, LPC-20-09535 468 West 23rd Street, Borough of Manhattan

How to Testify Via Zoom: https://us02web.zoom.us/j/89088348352?pwd=b2FRd3VaUjlZMDl3TUt6RjlmVmExUT09 Meeting ID: 890 8834 8352 Password: 866423 Note: If you want to testify on an item, join the Zoom webinar at the agenda’s “Be Here by” time By Phone: 1 646-558-8656 (about an hour in advance). When the Chair US (New York) 877-853-5257 (Toll free) indicates it’s time to testify, “raise your hand” via US 888 475 4499 (Toll free) the Zoom app if you want to speak (*9 on the phone). Those who signed up in advance will be called first.