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  • Inclusionary Housing
  • Affordable Housing Policy

Unit & Cash-in-Lieu (CIL) Calculator

The City of Boulder Inclusionary Housing Program is designed to maintain a diverse housing stock that meets the needs of people of all incomes.

The program requires that 25 percent of all new residential development be provided as permanently affordable housing. For-sale developments must provide at least half of the required affordable units on-site, the other half may be satisfied through the following options: 1) providing affordable units off-site; 2) making a Cash-in-lieu (CIL) contribution; or 4) donating land. Rental developments do not have an on-site requirement and may satisfy the entire requirement with any of the options listed above.

The program includes incentives when more than half of any required FOR-SALE affordable units are provided on-site.

Housing staff are available to walk you through the calculator. Note that the data generated by the calculator are estimates for different options to fulfill the inclusionary housing (IH) requirement and must be verified by the city. The calculation is not transmitted to the city. In order to satisfy the IH requirement, you will need to include additional steps and details NOT included in the calculator.  

When your development is ready for a city review or permit, please contact a housing planner at 303-441-3157, #5, to discuss the inclusionary requirement for your project.

HOW TO USE THE CALCULATOR

(Fractions are resolved using standard rounding; .5 or greater is rounded up)

  1. Start with the “Project Input” tab to input data on your residential project. Note that it is optional to estimate the number of affordable units you will provide on-site at this point.
     
  2. Once you have entered your project inputs go to the “Options Summary” tab.

Information is provided in sections labeled A-E.  

  1.   All Cash-in-lieu (CIL) . This table indicates the amount required to fully satisfy the inclusionary requirement with a cash contribution if no affordable units are provided on-site. Cash-in-lieu is updated annually on July 1.
  2.   50 Percent On-Site Affordable Units . This table indicates the total number of affordable units required to meet the 50 percent threshold and the amount of remaining cash-in-lieu owed. It also shows the number of affordable units which may be priced at the low/moderate and middle-income levels and the breakdown of the middle-income units into three pricing tiers. For-sale incentives included in this calculation:
    1. Remaining CIL is REDUCED by 50 percent  when at least half of the required affordable units are provided on-site.
    2. In For-Sale developments with 20 or fewer total units ALL affordable units provided on-site may be priced at the middle-income level.
  3. 75 Percent On-site Affordable units . This table indicates the number of affordable units required to meet the 75 percent threshold and the amount of remaining cash-in-lieu owed. It also shows the number of affordable units which may be priced at the low/moderate and middle-income levels and the breakdown of the middle-income units into three pricing tiers. For-Sale development Incentives included in this calculation:
  • In addition to the remaining CIL being REDUCED by half, when 75 percent or more For-Sale affordable units are provided on-site HALF may be priced at the middle-income level.
  1. All On-Site . This table indicates the total number of affordable units required to meet the 100 percent threshold and the amount of any remaining cash-in-lieu owed for a fraction of an affordable unit. It also shows the number of affordable units which may be priced at the low/moderate and middle-income levels and the breakdown of the middle-income units into three pricing tiers.
  2. All Off-Site . When affordable units are provided off-site the number of units required equal 25 percent of the combined units on both projects. This table indicates the total number of affordable units required off-site to meet the inclusionary requirement for your development and the off-site location combined and the amount of remaining cash-in-lieu owed if any. It also shows the number of affordable units which may be priced at the low/moderate and middle-income levels and the breakdown of the middle-income units into three pricing tiers.
  3. User Specified . On the Project Input tab, input the number of affordable units to be provided on-site and this table will show that number of affordable units, amount of remaining cash-in-lieu owed, the number of affordable units which may be priced at the low/moderate and middle-income levels and the breakdown of the middle-income units into three pricing tiers.

Check out our web site boulderaffordablehomes.com for more details.

IMPORTANT NOTE: The Inclusionary Housing Unit & Cash-in-Lieu Calculator may not be compatible with Safari Browser.  Please use an alternate browser for this tool.

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