Bloomberg Philanthropies is paying 15 city governments to copy one of three local housing reforms that have already shown results elsewhere, with plans to expand the program to as many as 30 cities. The bet is that the fastest way to add housing supply is not a new subsidy but a faster city hall: quicker permits, more accessory dwelling units, and a single team that cuts through agency-by-agency approvals.
The first 15 local governments, announced Oct. 15, 2026, are Albuquerque, N.M.; Alexandria, Va.; Charleston, S.C.; Chattanooga, Tenn.; Cleveland; Columbia, S.C.; Durham, N.C.; Louisville, Ky.; Miami; Nashville, Tenn.; Omaha, Neb.; Pittsburgh; Portland, Maine; Providence, R.I.; and San Jose, Calif. The program details below come from the City of Pittsburgh’s announcement of its selection, which reproduces the initiative’s terms; the foundation also published its own release, titled “Bloomberg Philanthropies Invests in 30 U.S. City Halls to Scale Proven Solutions to America’s Housing Crisis,”
Three models, one per city
Each participating city adopts one of three approaches drawn from existing local programs:
- Faster, digitized permitting, modeled on San Diego.
- Expanded accessory dwelling units, the backyard cottages and garage apartments sometimes called ADUs, modeled on Austin, Texas.
- Housing strike force teams, modeled on Atlanta.
Pittsburgh said it will pursue the San Diego permitting model and expects to receive between $450,000 and $750,000 from Bloomberg Philanthropies. Beyond the money, the cities get operational support from Accelerator for America, plus other outside specialists. The initiative sits inside Accelerator for America’s Bloomberg Cities Idea Exchange, part of its government innovation work, which the announcement says includes more than 1,000 city halls in 95 countries.
Pittsburgh’s announcement does not say how the remaining slots will be filled or on what schedule the grants will be paid.
The San Diego numbers behind the pitch
San Diego is the program’s most quantified case. According to the announcement, the city’s median home price is more than $1 million and just 17% of households can afford one. After an executive order set a 30-day limit on approvals, the number of homes cleared for construction “jumped 82% in one year,” which the announcement describes as the most since 2005, and the pace held the following year with nearly 8,800 homes permitted.
Those figures come from the program’s own materials and describe one city’s experience. Whether a smaller grant and borrowed playbook produce similar gains in, say, Omaha or Chattanooga will depend on local zoning, staffing and demand that the announcement does not address.
The supply problem it targets
The announcement frames the effort around the shortage of modest homes. It says homes under 1,400 square feet made up more than a third of new single-family construction in the 1970s but roughly one in ten today, that some 8.1 million families now share a home with people outside their household, and that only 35 affordable homes exist for every 100 of the lowest-income renter households nationally.
That squeeze on entry-level supply is a theme RealtyWire has tracked, including an analysis finding that aging owners will release 13.9 million homes by 2036 but only 380,000 of them are starter homes, and a builder’s account of why it is “incredibly difficult” to profit from a traditional starter home.
Part of a wider push on approvals
The Bloomberg program joins a run of efforts aimed at the approval process rather than at construction financing. Maryland recently created a permitting acceleration team alongside a modular housing push, and Airbnb has committed $250 million to unstick stalled housing projects, starting in Austin.
On our reading, the significance for builders and agents in the selected cities is less the dollar amount, which is small next to a city budget, than the political cover and technical help to change how approvals work. Permit timelines feed directly into carrying costs for developers, and ADU rules determine whether existing single-family lots can add rental units. For builders and lenders, the practical questions in each of the 15 cities will be which of the three models the city adopts and when the changes reach the permit counter. More housing-supply coverage is in RealtyWire’s Housing Market section.
