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Massachusetts Institute of Technology

New York City local law 97 : an analysis of institutional response & decision making towards groundbreaking carbon emissions legislation

Abstract

dc:description.abstract

In May 2019, New York City (under Mayor Bill De Blasio) enacted its own version of the Green New Deal called the Climate Mobilization Act, a local law to amend its charter and administrative code to achieve certain reductions in greenhouse gas emissions by 2050. The Act comprises a series of ten bills passed by the New York City Council including a tax on paper bags, a green roof mandate, and a process to close oil and gas plants around the city, amongst others. One major portion of this Act is a bill to limit greenhouse gas emissions, caps, on tens of thousands of buildings in the City. This mandate, called Local Law 97 (LL97), is the first of its kind in any large city in the world. This thesis focuses specifically on LL97, which limits carbon emissions on buildings over 25,000 square feet on real estate product types such as, commercial office spaces, healthcare facilities, residential co-ops, condos, and rental apartment buildings. It examines the characteristics and impacts of the law on real estate owners, as well as the city. It diagnoses how owners are responding to the law and where improvements can be made as this model becomes replicated globally through industry surveys. Since its approval in the Spring of 2019, a number of cities have expressed interest in promulgating similar regulations, though little research analysis has been undertaken to fully evaluate the implications of LL97, whether or not the policy falls short of our goals, or if it's even achievable. It finds and later recommends, that amendments to the law, such as carbon credit portfolio trading, the incorporation of additional asset types, and green leases, amongst others, can help to achieve Local Law 97 goals with enhanced success and mitigated burdens on New York City real estate owners.

Degree

thesis:*
Name thesis:degree_name
Master
Department dc:contributor.department
Massachusetts Institute of Technology. Department of Urban Studies and Planning
Grantor dc:publisher
Massachusetts Institute of Technology
Year dc:date.issued
2020

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Steele, Kristopher Stephen.
Advisor dc:contributor.advisor
  • Siqi Zheng.

Subjects

dc:subject × 2

Rights

dc:rights
Statement dc:rights
  • MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
Language dc:language.iso
eng

Identifiers

dc:identifier.*
Handle dc:identifier.uri
https://hdl.handle.net/1721.1/129002
OAI identifier oai:identifier
oai:dspace.mit.edu:1721.1/129002

Chain of custody

source
Harvested from
MIT
Base URL
dspace.mit.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Steele, Kristopher Stephen.. New York City local law 97 : an analysis of institutional response & decision making towards groundbreaking carbon emissions legislation. Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129002