green circle with white arrowsGRRP Comprehensive

The Green and Resilient Retrofit Program (“GRRP”) GRRP provides funding for direct loans and grants to fund projects that improve energy or water efficiency, enhance indoor air quality or sustainability, implement the use of zero-emission electricity generation, low-emission building materials or processes, energy storage, or building  electrification strategies, or address climate resilience, of eligible HUD-assisted multifamily properties. The Comprehensive cohort is designed for properties with high efficiency and resilience needs. Properties receiving GRRP Comprehensive grants or loans will be comprehensively assessed to evaluate which energy and climate resilience investments are best suited to the property. View the webinar below to learn more about GRRP Comprehensive.

GRRP Overview: Comprehensive, edited 11/17/2023 (Video, 12 mins)


Learn more about GRRP and the Comprehensive cohort.





  • GRRP's new Participant Resources web page has tools, training and other resources to support participants who have been selected for GRRP awards under the Elements, Leading Edge and Comprehensive cohorts.
  • The application review periods for Comprehensive is closed.  


Have questions?


  • To learn more about program requirements, ask us your questions directly during our GRRP Office hours on Wednesdays from 3:00-3:30 PM EST (no registration necessary):
  • GRRP's frequently asked questions (FAQs) can provide answers to basic questions about the program.
  • Visit the GRRP playlist on YouTube for Office Hours recordings and other program videos.
  • Join our mailing list to receive our newsletter and other GRRP updates.
    • Read our first issue of GRRP's Newsletter now. Topics in this edition include: Closing Documents, Final Application Deadline, Application Revisions and more. 
  • Email us at


Tools & Resources


GRRP Applicant

Comprehensive Overview Fact Sheet
Comprehensive Notice of Funding Opportunity (NOFO) (Updated 4/2/2024)
Comprehensive Application. (Updated 4/2/2024) Download and complete form. Ensure all tabs are thoroughly complete and all required attachments are added before submitting. The Comprehensive application review period is now closed: August 31, 2023 (closed), November 30, 2023 (closed), February 28, 2024 (closed), June 12, 2024 (closed).
Common GRRP Application Issues. This Excel document outlines common GRRP application issues and their corrections. The document is filterable by cohort or issue type. All applicants will need to register on if you do not have a UEI number. Additional application materials are posted and must be submitted through Visit the web page to learn how to submit a grants application.
GRRP Comprehensive Scoring Process. (Video, 8 mins)
Applicants for the Comprehensive NOFO must either submit Benchmarking Data through EPA's Portfolio Manager or the Multifamily Building Efficiency Screening Tool (MBEST):
Benchmarking Resources
Owners using Portfolio Manager benchmarking may use the posted resources, including instructions for inputting and sharing data, a sample tenant release for owners that cannot access whole-building data, and template RFPs for hiring a benchmarking contractor.
The Multifamily Building Efficiency Screening Tool (MBEST)
All owners applying to the Leading Edge cohort must complete the MBEST. This tool was created in partnership with the U.S. Department of Energy and the Lawrence Berkeley National Laboratory to screen multifamily buildings and understand current opportunities for energy efficiency improvements. Completing the MBEST will require owners to walk through their building and enter information about lighting, HVAC heating/cooling systems, domestic hot water systems, and the building envelope. For more information on how to fill out the tool, view the Overview video.
Paperwork Reduction Act (PRA) for GRRP Application Tools
GRRP Elements application tools are part of the Paperwork Reduction Act (PRA) collection under OMB control number 2502-0624. Public reporting burden for this collection of information is estimated to average 45 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Comments regarding the accuracy of this burden estimate and any suggestions for reducing this burden can be sent to the Reports Management Officer, REE, Department of Housing and Urban Development, 451 7th St SW, Room 4176, Washington, DC 20410-5000.  When providing comments, please refer to OMB Approval No. 2502-0624. This information is required to obtain benefits. HUD may not collect this information, and you are not required to complete this form, unless it displays a currently valid OMB control number. This information is being collected under Title III of the Inflation Reduction Act of 2022, H.R. 5376 (IRA), section 30002 titled “Improving Energy Efficiency or Water Efficiency or Climate Resilience of Affordable Housing,” authorizes the Green and Resilient Retrofit Program (GRRP). The program provides grants or loans for building retrofits to HUD-assisted multifamily projects with utility efficiency or climate resilience needs. The Elements cohort of the program targets properties currently undergoing a recapitalization or other transaction with HUD and offers owners a menu of green and resilient building design features for reimbursement. This information collection is used to determine eligibility of HUD-assisted multifamily properties for participation in the GRRP Elements program and the terms on which participation should occur. The purpose of the program is to fund projects that improve energy or water efficiency, enhance indoor air quality or sustainability, implement the use of zero-emission electricity generation, low-emission building materials or processes, energy storage, or building electrification strategies, or address climate resilience, of an eligible property. While no assurances of confidentiality are pledged to respondents, HUD generally discloses this data only in response to a Freedom of Information Act request.
Multifamily Assessment Contractors (MACs)

Through a procurement process, HUD selected the following entities to serve as Multifamily Assessment Contractors (MACs) for the Green and Resilient Retrofit Program. MACs will undertake a suite of assessments for GRRP awardees in the Comprehensive cohort. MACs may employ subcontractors for a portion of work under the GRRP program, however HUD does not have any involvement with the selection or recommendation of subrecipients for MACs. If you are interested in working with any of our MACs, please reach out to them directly. If you have any questions, you can contact Natalicia Garcia (, Contracting Officer Representative, on this contract.

Guidehouse, Inc. – Kristin Uckert,
Deloitte Consulting, LLP – Ken Marsh,
Jones Lange Lasalle America, Inc. – Tim McGarrity,
CreditVest, Inc. – Andrea Humphrey,
Ernst & Young LLP - Neyousha Jelinski, 
GRRP Participant

GRRP Notice. Program requirements for participants selected under the NOFOs are detailed in the Housing Notice 2023-05 (as amended by Housing Notice 2024-01). The redlined version is also available.
Comprehensive Application Walk-Through Video
Additional tools, training and other resources are available on GRRP's Participant Resources web page.
GRRP Closing Documents

Coming soon.


Learn more about GRRP Cohorts