While legal documents provide the basic framework for preserving long-term affordability, many communities have concluded that legal documents alone are insufficient.  Proactive stewardship and ongoing monitoring and support of homeowners are necessary to successfully preserve affordability of affordable homes over the very long term.

A study of inclusionary housing programs in California found that programs experienced fewer losses of both rental and ownership inclusionary units when the program had strong monitoring procedures.*   The Grounded Solutions Network has established a detailed set of stewardship standards that outline best practices for proactive management of units with long-term affordability requirements.

Read more about stewardship of inclusionary homes in the Making it Work section of this site.

Common Questions

Why is long-term affordability so important?

Some of the most compelling arguments for the need to ensure permanent affordability have come from analyses of federally-subsidized rental units (e.g. Project Based Rental Assistance).

According to an analysis by the National Low Income Housing Coalition (NLIHC), nearly half a million of the nation’s 1.4 million federally assisted rental units are at risk of leaving the affordable stock because of “owners opting out of the program, maturation of the assisted mortgages, or failure of the property under HUD’s standards.”  NLIHC advocates for the need to preserve these existing units, pointing to research that indicates that it cost 40 percent less to preserve an existing affordable unit than to build a new one.

At the same time, if one goal of an inclusionary housing program is to create economic integration, we can only hope to maintain that economic diversity if we preserve the affordable housing units over a very long time. Inclusionary housing produces new housing relatively slowly, over time as communities grow. Inclusionary housing programs can build up sizable portfolios of homes in every part of the community, but if units are only maintained as affordable for relatively short periods of time, the most desirable locations are likely to remain out of reach for lower-income residents.

How long should affordability restrictions last?

Nothing lasts forever, but many cities attempt to structure their inclusionary housing policies to preserve the affordable homes for as long as possible. Many argue that if inclusionary housing programs are to create and preserve mixed-income communities, long-term restrictions are necessary for the program to have a lasting impact. If homes expire out of the program after a few decades, the program can never really address the need for affordable housing.

Ownership programs typically record deed restrictions or covenants that limit sale or rental of a regulated unit only to approved low-income (or moderate-income) households. In some communities, these covenants are structured to run ‘in perpetuity.’ In others, they have a fixed term, generally somewhere between 30 and 99 years.

Affordability terms applied to rental developments are a bit more complex. An investor might pay more for a property with rent restrictions that expire after 15 years than one with 99-year restrictions, but the difference might be slight. In other words, the length of affordability makes a big difference to the long-term impact of the program and, at most, a small difference to initial feasibility.

The best practice is to record fixed, but long-term restrictions (50 or 99 years, for example) and re-record them and ‘reset the clock’ each time a property is sold or redeveloped. For example, if a property is sold 20 years after initial development, a new restriction is recorded with a new 50-year term. If the restrictions last approximately as long as the useful life of the buildings, there is a high likelihood that affordability will be maintained over time.

For homeownership units, the affordability restrictions can be reset each time a unit is resold. Rental properties may not sell as frequently, but eventually they will be torn down and rebuilt and the jurisdiction would be in a position to require new affordable units at that point.

Can we achieve lasting affordability without perpetual restrictions?

Permanent affordability is frequently the goal for inclusionary housing programs, and a number of communities record affordability restrictions that are perpetual and ‘run with the land.’  However, legal concerns are often cited as reasons not to adopt perpetual restrictions. For several jurisdictions, this problem is solved by simply changing the term used. Davidson, North Carolina, Chapel Hill, North Carolina, Burlington, Vermont, San Mateo, California, and Redmond, Washington all chose to define their affordability term as “the life of the building” or 99 years, rather than “in perpetuity.”

Another way that programs get around concerns about “perpetual affordability” for single-family homes is to adopt control periods of 30 or more years and require that these terms restart for the next homebuyer if the home is resold within the control period. The administrators of programs in Montgomery County, MD, Fairfax County, VA and San Mateo believe, plausibly, that this reset requirement will have the same impact as “perpetual” affordability requirements, because most homes tend to be sold within 30 years.

Fairfax County uses its preemptive option to purchase homes at the first sale of the home after the control period expires. The preemptive purchase option is another way to protect inclusionary housing units and to extend their affordability in perpetuity; however, the jurisdiction must purchase the home at market price and then subsidize it to make it affordable, which can be very expensive and therefore reduces the impact of the original subsidy.

Another approach is to require repayment of a portion of sales proceeds in excess of the affordable price when a home reaches the end of the affordability period and is sold on the open market. Montgomery County and Fairfax County capture half of these proceeds if the home sells after the completion of the 30-year affordability term. Jurisdictions in New Jersey capture 100 percent of the difference between the affordable price and market price, but this is calculated as the difference that existed at the time of initial sale. In other words, these communities capture 100 percent of the original affordability subsidy.




Achieving Lasting Affordability Through Inclusionary Housing

This paper analyzes a set of 20 inclusionary housing programs to highlight how long affordability periods, strong legal mechanisms, carefully designed resale formulas, dedicated program stewardship, and strategic partnerships can help preserve affordable homes.  View Paper

Preservation of Affordable Homeownership: A Continuum of Strategies

This report by the National Housing Conference’s Center for Housing Policy compares the range of affordability preservation mechanism used to protect public investment in affordable homeownership units. View Report