SL Green Realty Corp.

aid: sl-green-realty
name: SL Green Realty Corp.
description: 'SL Green Realty Corp. (NYSE: SLG) is "Manhattan''s largest office landlord,
  a fully integrated real estate investment trust, or REIT, that is focused primarily
  on acquiring, managing and maximizing the value of Manhattan commercial properties."
  Founded in 1997 by Stephen L. Green (as successor to S.L. Green Properties, established
  1980) and headquartered in New York City, SL Green is led by Chairman & CEO Marc
  Holliday. As of fiscal year-end 2024 the company reported 39 properties totaling
  approximately 25.3 million square feet, US$886M in revenue, US$10.47B in total assets,
  and 1,221 employees. The portfolio includes flagship trophy assets One Vanderbilt
  (1,401 ft, 1.75M sq ft, 62 stories, fully leased; home to Summit One Vanderbilt
  observation deck) and One Madison Avenue (2026 ULI Award for Excellence in Office
  Development), plus 420 Lexington Avenue, 1185 Avenue of the Americas, 1350 Avenue
  of the Americas, 800 Third Avenue, 825 Eighth Avenue, Worldwide Plaza, the Pershing
  Square Building, and 15 Laight Street in Tribeca. The company is the New York joint-venture
  partner for Caesars Palace Times Square, the proposed casino/entertainment complex
  at 1515 Broadway (and adjacent 1185 Avenue of the Americas redevelopment), pending
  issuance of one of three New York State downstate gaming licenses. Business divisions
  span leasing, finance, investments, construction, development, hospitality, property
  management, security & life safety, sustainability, and technology. SL Green publishes
  no public developer APIs, no OpenAPI/AsyncAPI specs, no SDKs, no developer portal,
  no public GitHub organization, and no public sandbox. Its tenant-facing technology
  surface is delivered through third-party platforms — the "My Building" tenant portal,
  RequestCom for building services, and ADP Workforce for recruitment — none of which
  expose a programmable interface attributable to SL Green. This profile documents
  the REIT, its portfolio, leadership, and verified absence of a public API footprint.'
kind: company
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Casino Development
- Commercial Real Estate
- Manhattan
- New York City
- NYSE Listed
- Office Leasing
- Office Properties
- Property Management
- Real Estate
- REIT
url: https://raw.githubusercontent.com/api-evangelist/sl-green-realty/refs/heads/main/apis.yml
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.19'
apis:
- name: SL Green Realty Corp. GraphQL Schema
  description: Conceptual GraphQL schema for SL Green Realty Corp. covering Property,
    Building, Floor, Suite, Lease, Tenant, Occupancy, Transaction, Contact, AmenityLevel,
    CertificationLevel, GreenInitiative, InvestorRelations, FinancialSummary, Dividend,
    NOI, CapRate, Portfolio, Market, and Submarket. SL Green publishes no public API;
    this data model is derived from public portfolio and SEC filing data.
  properties:
  - url: graphql/sl-green-realty-graphql.md
    type: GraphQL
  - url: graphql/sl-green-realty-schema.graphql
    type: GraphQLSchema
common:
- type: Website
  url: https://slgreen.com
- type: AboutUs
  url: https://slgreen.com/about/
- type: Properties
  url: https://slgreen.com/properties/
- type: Leadership
  url: https://slgreen.com/about/
- type: InvestorRelations
  url: https://slgreen.com/investors/
- type: PressReleases
  url: https://slgreen.com/news/
- type: Careers
  url: https://slgreen.com/careers/
- type: Sustainability
  url: https://slgreen.com/sustainability/
- type: TenantPortal
  url: https://slgreen.com/my-building/
  title: '"My Building" tenant services portal'
- type: SECFilings
  url: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001040971&type=10-K&dateb=&owner=include&count=40
  title: SEC EDGAR 10-K filings (CIK 0001040971)
- type: LinkedIn
  url: https://www.linkedin.com/company/sl-green-realty-corp
- name: CorporateFacts
  type: Features
  description: SL Green corporate fact sheet (verified May 2026 via slgreen.com and
    public filings).
  data:
  - fact: Legal Name
    value: SL Green Realty Corp.
  - fact: Founded
    value: 1997 (successor to S.L. Green Properties, est. 1980)
  - fact: Founder
    value: Stephen L. Green
  - fact: Headquarters
    value: New York, NY, USA
  - fact: Stock Exchange
    value: NYSE
  - fact: Ticker
    value: SLG
  - fact: CIK
    value: 0001040971
  - fact: Chairman & CEO
    value: Marc Holliday
  - fact: Entity Type
    value: Real Estate Investment Trust (REIT)
  - fact: Property Count (FY 2024)
    value: '39'
  - fact: Portfolio Square Footage (FY 2024)
    value: 25,297,353 sq ft
  - fact: 2024 Revenue
    value: US$886 million
  - fact: 2024 Net Income
    value: US$30 million
  - fact: 2024 Total Assets
    value: US$10.470 billion
  - fact: 2024 Total Equity
    value: US$3.951 billion
  - fact: Employees (2024)
    value: 1,221
  - fact: Market Description
    value: Manhattan's largest office landlord
- name: FlagshipProperties
  type: Features
  description: 'Selected SL Green Manhattan properties drawn from slgreen.com/properties
    and Wikipedia (One Vanderbilt). Verbatim from slgreen.com homepage — "SL Green
    Realty Corp. (NYSE: SLG), Manhattan''s largest office landlord."'
  data:
  - property: One Vanderbilt
    address: 1 Vanderbilt Avenue (42nd Street & Vanderbilt Ave), Manhattan
    heightFt: 1401
    sqFt: 1750000
    stories: 62
    completed: '2020-09-14'
    cost: US$3.31 billion
    coOwners: SL Green Realty, National Pension Service of Korea, Hines, Mori Building
      Company
    anchorTenant: TD Bank
    notableFeatures: Summit One Vanderbilt observation deck (1,020 ft); Le Pavillon
      (Daniel Boulud)
    notableTenants: The Carlyle Group, McDermott Will & Emery, UiPath
    status: Fully leased (late 2024)
  - property: One Madison Avenue
    location: Madison Square Park, Manhattan
    recognition: 2026 ULI Award for Excellence in Office Development
  - property: 1515 Broadway / 1185 Avenue of the Americas
    location: Times Square, Manhattan
    currentUse: Office tower (1185 6th Ave is part of redevelopment proposal)
    proposedUse: Caesars Palace Times Square — casino, hotel, entertainment complex
      (pending NY State downstate gaming license)
  - property: 420 Lexington Avenue (Graybar Building)
    location: Midtown East / Grand Central, Manhattan
  - property: 800 Third Avenue
    location: Midtown East, Manhattan
  - property: 825 Eighth Avenue (Worldwide Plaza)
    location: Midtown West / Times Square, Manhattan
  - property: 1350 Avenue of the Americas
    location: Midtown, Manhattan
  - property: 15 Laight Street
    location: Tribeca, Manhattan
  - property: Pershing Square Building
    location: 125 Park Avenue / Grand Central, Manhattan
  - property: 461 Fifth Avenue
    location: Midtown, Manhattan
  - property: 810 Seventh Avenue
    location: Midtown West, Manhattan
  - property: 919 Third Avenue
    location: Midtown East, Manhattan
  - property: Random House Tower
    location: 1745 Broadway, Manhattan
- name: BusinessDivisions
  type: Features
  description: SL Green operating divisions as listed across slgreen.com.
  data:
  - division: Leasing
  - division: Finance
  - division: Investments
  - division: Construction
  - division: Development
  - division: Hospitality
  - division: Property Management
  - division: Security & Life Safety
  - division: Sustainability
  - division: Technology
- name: SubmarketCoverage
  type: Features
  description: Manhattan submarkets in which SL Green operates properties (per slgreen.com/properties).
  data:
  - submarket: Grand Central
  - submarket: Midtown South / Chelsea
  - submarket: Plaza
  - submarket: Downtown
  - submarket: Westside
  - submarket: Midtown West
  - submarket: Times Square
  - submarket: Park Avenue South / Flatiron
  - submarket: Penn Station
- name: CaesarsPalaceTimesSquare
  type: Features
  description: Proposed Caesars Palace Times Square casino/entertainment complex —
    a SL Green-led joint venture with Caesars Entertainment and Roc Nation (Jay-Z).
    Pending issuance of one of three NY State downstate commercial gaming licenses.
    Site spans 1515 Broadway with adjacent 1185 Avenue of the Americas redevelopment.
  data:
  - role: Joint venture lead / property owner
    partner: SL Green Realty Corp.
  - role: Gaming operator
    partner: Caesars Entertainment
  - role: Entertainment / cultural partner
    partner: Roc Nation
  - role: Regulator
    partner: New York State Gaming Commission / Gaming Facility Location Board
  - status: Pending downstate gaming license award (as of May 2026)
- name: APISurfaceAssessment
  type: Features
  description: API Evangelist assessment of SL Green's public API and developer surface
    as of May 23, 2026.
  data:
  - finding: Public developer portal
    status: None — no developer.slgreen.com or equivalent
  - finding: Public OpenAPI / AsyncAPI specs
    status: None published
  - finding: Public REST or GraphQL APIs
    status: None — tenant services delivered via third-party portals
  - finding: SDKs / CLI
    status: None published
  - finding: GitHub organization
    status: None — no github.com/slgreen org found
  - finding: Status page / changelog
    status: None public
  - finding: Sandbox / Console
    status: None
  - finding: Tenant technology surface
    status: Vendor-mediated — "My Building" portal, RequestCom, ADP Workforce
  - finding: Tier rationale
    status: Tier 3 — no-apis. REIT with no programmable public surface.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com