Affordable housing

How CLT resale formulas keep homes affordable — for good

The single dial that lets a Community Land Trust home stay affordable for the next family while its owner still builds real equity.

A companion to our free interactive lesson. Open the lesson →

When people first hear about a Community Land Trust (CLT), they usually ask the same fair question: if a home is sold below market and stays affordable, how does the family who lives there ever build any wealth? It sounds like a trade-off — affordability or equity. The clever part of a CLT is that it turns that trade-off into a dial you can tune.

The core idea

In a CLT, a nonprofit owns the land and the household owns the home on top of it, typically through a long-term ground lease. Because the household isn't paying for the land, the home costs far less to buy. In exchange, the resale price is governed by a resale formula rather than the open market.

What the formula actually does

An appreciation-based resale formula — the kind used by the Champlain Housing Trust, one of the most studied models in the country — lets the seller keep their original down payment and principal paid down, plus a defined share of the home's appreciation. The community keeps the rest, which is exactly what holds the next sale price down to something the next family can afford.

  • Owner keeps: their equity built through payments, plus an agreed slice of appreciation.
  • The home keeps: the remaining appreciation, baked back into a below-market resale price.
  • The dial: the appreciation share. Turn it up and owners build more wealth; turn it down and homes stay more affordable, faster.

Why both things can be true

The reason affordability and wealth-building coexist is that homeownership builds equity in two ways: paying down a mortgage, and appreciation. A CLT lets owners keep all of the first and a portion of the second. That portion is usually enough to be a meaningful step up — often a far better outcome than continued renting — while keeping the home reachable for the next buyer.

See it move

Reading about a dial is one thing; feeling it is another. Our free lesson gives you three calculators built on the real Champlain formula so you can drag the appreciation share and watch affordability and owner equity trade off in real time.

Try the interactive lesson →

This article is educational and is not financial, investment, or legal advice.