FHA Multifamily Mortgage Insurance (Section 221(d)(4) and 223(f))

How It Works

The Federal Housing Administration (FHA), part of HUD, does not lend money for apartment buildings. It insures loans made by private, HUD-approved lenders. If the owner defaults, FHA pays the lender’s claim. That federal backing lets lenders offer longer terms and more borrowing than many conventional construction or bank loans.

The two workhorse programs are:

HUD regulations also cap any term at 75% of the building’s remaining economic life.

HUD sizes each loan using several limits and insures no more than the smallest result. These include a share of the project’s cost or value, a minimum debt service coverage ratio (how far net operating income must exceed loan payments), and statutory dollar caps per unit. By statute, a 221(d)(4) loan cannot exceed 90% of HUD’s estimate of the project’s replacement cost. HUD’s MAP Guide sets the specific ratios, which vary by property type. Because it is a long-term, fully amortizing first mortgage, the insured loan usually serves as the senior debt in a project’s capital stack. It can be combined with the 4% tax credit and tax-exempt bonds.

Borrowers pay a mortgage insurance premium. For applications submitted or amended on or after October 1, 2025, HUD set both the upfront and annual premium at 0.25% for every multifamily program. That replaced a tiered system, in place since 2016, under which market-rate properties paid more than green or affordable ones.

Who It Serves

The statute says Section 221 exists “to assist private industry in providing housing for low and moderate income families.” In practice, the program has no tenant income test of its own for market-rate housing. A property must have at least five units.

Even so, most recent activity has involved affordable or energy-efficient deals. In its September 2025 notice, HUD reported that from March 2024 to March 2025 only 4% of 221(d)(4) and 223(f) closings were for market-rate properties that did not qualify for a reduced premium. Because the insurance has no income test, it can finance unsubsidized, moderately priced workforce housing as well as tax-credit properties.

How to Access It

A developer or owner works with a HUD-approved multifamily lender. The lender prepares the application, third-party reports, and underwriting, and HUD reviews it before issuing a commitment. Contractors on 221(d)(4) construction must pay federal prevailing wages set under the Davis-Bacon Act.

History

Congress created FHA in 1934 and added Section 221 to the National Housing Act in 1954, at first to help rehouse families displaced by urban renewal and other government action. In 1961 Congress broadened the section’s stated purpose to low- and moderate-income families generally.

The Housing Act of 1959 added paragraph (d)(4). It covers loans to any borrower HUD approves, including profit-motivated owners. Paragraph (d)(3), by contrast, is limited to public bodies, nonprofits, cooperatives, limited-dividend companies and other regulated owners. The Housing and Community Development Act of 1974 added Section 223(f), which extended insurance to the purchase or refinancing of existing projects and made the program a tool for preservation.

For years, some observers argued that the per-unit dollar caps had fallen behind construction costs. That was despite annual inflation indexing and HUD’s authority to raise the caps by up to 170% where costs require it, or by up to 215% for individual projects in high-cost areas. The 21st Century ROAD to Housing Act of July 11, 2026 replaced the base limits set in 2001 with much higher figures. It also required HUD to index them to a Census Bureau price index for multifamily construction instead of the Consumer Price Index, and ordered a study of the effects, with a report to Congress due by July 11, 2029.

Limitations

• Each loan goes through the lender’s underwriting and then HUD’s own review before a commitment is issued, steps a conventional loan does not have.
• Construction under 221(d)(4) must follow Davis-Bacon prevailing wage rules, which add compliance requirements and can raise labor costs.
• Mortgages can include prepayment charges, and bond-financed or Ginnie Mae-securitized loans can carry prepayment restrictions, which reduce an owner’s flexibility.
• The insurance lowers financing costs but does not by itself make rents affordable to lower-income households. That requires subsidies or restrictions from other programs.