CSP multifamily requirements

IREM certifies office, medical office, multifamily, senior housing, retail, industrial and self storage properties.


  • At least 25 units
  • At least 18 months after substantial completion or repositioning
  • At least 75% occupancy
  • Smoke-free interior common areas
  • In compliance with all environmental laws

Baseline requirements – All properties must complete

Management Perform a sustainability market analysis
Management Discuss sustainability and investment goals with owner or supervisor
Management Commit to monitoring the effect of sustainability on property financials
Management Hold meetings with your staff team, at least quarterly, to discuss progress on sustainability program
Management Establish a plan for marketing your sustainability success
Energy Establish an energy management policy
Energy Benchmark energy use
Water Establish a water management policy
Water Benchmark water use
Health Establish an IAQ management plan
Health Conduct an IAQ walk-through
Recycling Assess your recycling practices and options
Recycling Conduct a waste and recycling container audit
Purchasing Establish a sustainable purchasing policy
Purchasing Assess your purchasing practices and options

Options for each category

  • Earn a minimum of 2 points in each category
  • Accumulate at least 62 total points by completing the activities of your choice
  • Download the multifamily properties checklist to track the points you earn

Click on each category to view your options.

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  • Energy
    • Commit to ongoing training on energy management for maintenance team
    • Hold periodic site manager-maintenance supervisor meetings to discuss energy management and property financials
    • Conduct a walk-through to detect malfunctioning equipment and opportunities for improvement
    • Provide information to residents on energy management
    • Conduct an energy meter inventory
    • Determine if onsite renewable energy installations are feasible for the property
    • Reduce energy consumption by 5% over baseline
    • Reduce energy consumption by 10% over baseline
    • Commit to installing ENERGY STAR equipment during rehabs and unit turnovers
    • Achieve an ENERGY STAR Score of at least 60
    • Install electric vehicle charging stations
  • Water
    • Commit to ongoing training on water management for maintenance team
    • Check for water leaks
    • Provide information to residents on water management
    • Establish a plan for improving water efficiency in landscaping
    • Install high-efficiency fixtures in common areas and commit to installing high-efficiency fixtures in units during rehabs and unit turnovers
    • Conduct an inventory of water meters
    • Reduce water consumption by 5% over baseline
    • Reduce water consumption by 10% over baseline
    • Install a water reuse system
  • Health
    • Establish a green construction policy for rehabs and unit turnovers
    • Engage residents in health and wellness
    • Provide filtered water for residents and guests in common areas
    • Provide at least 3 healthy options in vending machines
    • Inspect filters and exhaust systems
    • Establish a smoke-free policy for the entire property
    • Use healthy, low emitting materials in common area
    • Use healthy, low emitting materials for rehabs and unit turnovers
    • Employ green cleaning services for common areas
    • Establish integrated pest management (IPM) in areas under management control
    • Provide an onsite fitness facility and/or other wellness-inspired amenities for residents
  • Recycling
    • Install recycling signage throughout the property
    • Provide information on recycling program to residents
    • Establish a construction waste management plan for rehabs and unit turnovers
    • Establish a policy for recycling e-waste, batteries, light bulbs, and bulk items
    • Set diversion rate goals for the property
    • Achieve a minimum diversion rate of 20% for the property
    • Establish recycling services
    • Hold regular recycling and/or donation drives for residents
    • Achieve a minimum diversion rate of 25% for the property
    • Achieve a minimum diversion rate of 30% for the property
    • Establish additional recycling services
  • Purchasing
    • Use green-certified products in common areas
    • Use sustainable products for copier operations
    • Use reusable or compostable kitchen products (cups, forks, etc.) for management operations
    • Use sustainable paper for marketing materials or establish a paperless marketing and leasing program
    • Purchase green power, carbon offsets, or renewable energy credits for common area energy
    • Work with vendors to decrease packaging materials for orders
    • Include sustainability clauses in vendor contracts

Additional resources

Here you can find additional resources to help you finish applying for the Certified Sustainable Property certification.

CSP diversion rate calculator

This diversion rate calculator allows you to obtain an estimate of a property's diversion rate - the amount of waste material produced in property operations that is diverted from the landfill through recycling and other waste management strategies.

Download calculator

Outreach templates

As a part of the application, you may want to reach out to tenants to inform them of steps you have already taken in sustainability and any sustainability goals for the property. These templates include the aforementioned categoires: energy, water, and recycling.

Outreach templates

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