BUILDING ENTERANCE
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SURROUNDING NEIGHBORHOOD
3 STAR MICHELIN RATED RESTAURANT ELEVEN MADISON PARK
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MADISON SQUARE PARK
THE CLOCK
TOWER
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LOCAL TENANT MAP
S | RENDERING
12.679.7729 | LBARCH.COM
STACKING PLAN
EAST 25TH STREET
EAST 24TH STREET
Core and Shell
11TH FLOOR - 98,420 RSF
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TENANT BUILDOUTS
TENANT BUILDOUTS
Owner: SL Green Realty Corp.
BMS: Siemens Apogee 600 system.
Location: Madison Avenue and Park Avenue South, Between 24th and 25th Streets
Column Spacing: East to West typically 17’ on center. North to South typically 22’ on center.
Year Built: Phased: 1932 - 1950
Ceiling Height: (Slab to Slab height) « Lobby approximately 45’0”
Architect: D. Everett Ward and Harvey Wiley Corbett
« Floors 2-4 approximately 17’0” « Floors 5-15 approximately 13’0” « Floors 16-29 approximately 12’6”
Building Size: 2,310,056 rentable square feet
Building Height: 31 stories above ground 4 stories below ground
Security: Coordinated program of controlled electronic access (turnstiles with key- card access). Electronic surveillance and uniformed security guards on a 24/7 basis.
Floor Sizes:
Loading Dock: Six loading bays accessed from 25th street. The loading bays offer direct access to the service elevators.
4B
26,718
3B
22,831
2B
90,964
1B
73,697
1
28,337
1M
21,421
Elevators/Escalator::
« Six escalators run between the lobby and B2. « 41 passenger elevators and five freight elevators.
2
77,965
3
87,482
4
103,662
5
13,662
6
103,630
7
103,630
Electric Capacity: 6 watts per square foot.6 vaults and five KVA transformers. 5 transformers provide service to 6 switchboards adjacent to vaults in level 1B.
8
103,360
9
98,391
10
98,420
11
98,420
Generator: Caterpillar 1750 KVA generator supports base building life safety.
12
99,556
13
82,812
14
82,390
15
18,012
Floor Loads:
16
73,558
17
73,626
« Lobby and Loading Dock: 120 pounds per square foot « Rest of Property: 80 pounds per square foot
18
72,378
19
74,391
20
74,600
21
60,716
Telecom/ Cable:
22
60,710
23
48,738
« Altice Business, AT&T, Century Link, Crown Castle Fiber, Pilot Fiber, Spectrum Business, Verizon, Zayo « Wired Certified Platinum
24
48,282
25
48,282
26
49,532
27
49,472
28
48,068
29
4,376
HVAC: Central cooling plant. Operates from 8:00 AM-6:00 PM, Monday through Friday. Condenser water available for tenant supplemental cooling from separate cooling tower plant. Life Safety: Standpipe and sprinkler system with sprinkler control valves stations and fire pumps. The base building fire alarm system is a Class “E” addressable fire alarm system equipped with new command centers and central station reporting, fully integrated with the HVAC systems.
Lobby: Marble floors and walls with six separate entrances.
Façade: Curtain wall constructed of limestone and granite with fixed framed glass windows.
Construction: Concrete-encased structural steel.
BUILDING SPECIFICATIONS
SUSTAINABILITY AT SL GREEN
HIGHLIGHTS
AIR • HVAC systems are equipped with MERV-15 media filters that capture airborne particles, exceeding the requirements of New York City’s Energy Code. • Mechanical systems increase the supply of outdoor air and continuously cycle fresh, filtered air throughout the building. 6 • Base building air quality is assured by WellStat, a monitoring system that provides real-time air quality levels that measure indicators including carbon dioxide, particulate matter, VOCs, temperature, humidity, and more. • Building staff are required to use low VOC emitting products including solvents, carpets, adhesives, paints, and coatings to maintain optimal indoor air quality. BUILDING HEALTH & SAFETY • 11 Madison Avenue is WELL Health-Safety Rated, under an evidence-based, third-party verification of the effectiveness of our operational and maintenance protocols. • Janitorial staff conduct high frequency cleaning and sanitization using green cleaning products. • Construction materials used at 11 Madison Avenue are LEED-compliant, recycled, responsibly sourced, and non-toxic. • SL Green provides training on emergency preparedness and workplace safety to building occupants and coordinates response drills quarterly. ENERGY • 11 Madison Avenue is equipped with automated control systems. • LED lighting systems are installed throughout building common areas to increase energy efficiency. • SL Green’s Engineering team uses a real-time energy management platform (iES EnergyDesk) to monitor energy use in 15-minute intervals and respond to building conditions promptly. • SL Green invests in capital upgrades and commissions building systems to ensure they are maximining performance.
RECYCLING • 11 Madison Avenue deploys a color-coordinated recycling procedure to minimize waste sent to landfills. • We conduct annual waste audits to identify areas for waste diversion improvement and develop corrective action plans. • We offer free recycling training sessions to tenants. • Janitorial staff uses double-barrel waste bins to ensure waste streams remain separated and are trained annually to maintain recycling best practices. • We offer complimentary e-waste pick-up to tenants to ensure materials are properly recycled.
WATER • Building engineers review water logs daily to compare trends and identify potential water loss. • SL Green disinfects cooling towers twice a year and conducts testing for legionella bacteria every 90 days.
SUSTAINABILITY AT SL GREEN
BUILDING ACHIEVEMENTS
TENANT PARTNERSHIPS
• SL Green partners with tenants to pursue incentives such as the NYSERDA RTEM + Tenant Program, which provides funding to install software in tenant spaces that gives real-time insights on energy usage. The software can help tenants identify measures to reduce their energy usage. • We promote recognition of tenant sustainability practices through the Tenant ENERGY STAR program. • If interested in additional partnership opportunities, please contact the SL Green sustainability team.
ORGANIZATIONAL SOCIAL RESPONSIBILITY Company-wide ESG Initiatives
• Bloomberg ESG Disclosure score among “Top 10” of all REITs listed on the Russell 1000 Index • Top Quartile on Refinitiv (formerly Thomson Reuters) ESG performance among all Commercial REITs globally in ESG Performance • MSCI’s Environment Category Top 15% Ranking (Opportunities in Green Buildings) in 2022 • Achieved a “5 Star” rating on GRESB, the organization’s highest accolade • S&P Global Sustainability Yearbook members (2022, 2023) • Green Lease Leaders Platinum Award (2023-2026) • CDP’s Climate Change Questionnaire score of “B” for 2020, 2021, and 2022 • State Street’s R-Factor Score “Leader” ranking for top 10% performance in Real Estate Industry
• ENERGY STAR Partner of the Year – Sustained Excellence (2018, 2019, 2020, 2021, 2022, 2023) • Annual voluntary ESG disclosures through leading frameworks SASB, GRI, CDP, S&P CSA (DJSI) • Seeded Food1st Foundation, a not-for-profit organization with a $1.5M investment, which has resulted in over one million meals donated to food-insecure New Yorkers and first responders • Sustainalytics’ 2023 Top-Rated ESG Companies List • Top 10% in ISS Corporate ESG Performance • Named to Newsweek’s list of America’s Most Responsible Companies 2023 • Validated our Scope 1, 2, & 3 emissions reduction targets aligned with the SBTi’s 1.5-degree Celsius scenario
For more information, visit sustainability.slgreen.com or email sustainability@slgreen.com.
ABOUT SL GREEN
SL Green Realty Corp., Manhattan’s largest office landlord, is a fully integrated real estate investment trust, or REIT, that is focused primarily on acquiring, managing and maximizing value of Manhattan commercial properties. As of December 31, 2025, SL Green held interests in 56 buildings totaling 31.4 million square feet . This included ownership interests in 28.0 million square feet of Manhattan buildings and 2.7 million square feet securing debt and preferred equity investments.
BRENT OZAROWSKI EXECUTIVE MANAGING DIRECTOR 212.372.2246 | brent.ozarowski@nmrk.com
BRIAN S. WATERMAN EXECUTIVE VICE CHAIRMAN 212.372.2299 | brian.waterman@nmrk.com
ERIK HARRIS EXECUTIVE MANAGING DIRECTOR 212.372.2105 | erik.harris@nmrk.com
ZACH FREEMAN VICE PRESIDENT 212.216.1748 | zach.freeman@slgreen.com
DAVID KAUFMAN SENIOR VICE PRESIDENT 212.356.4104| david.kaufman@slgreen.com
LIZA SCHWARTZ ASSOCIATE 212.216.1748 | liza,schwartz@slgreen.com
SLGREEN.COM
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