HUD Section 221(d)(4):
2026 multifamily construction guide
Everything multifamily developers, sponsors, and approved MAP lenders need to know about HUD's primary new-construction and substantial-rehab execution — 40-year fully amortizing, non-recourse, Davis-Bacon prevailing wage — current as of 2026.
What is HUD Section 221(d)(4)?
Section 221(d)(4) is the FHA-insured multifamily new-construction and substantial-rehabilitation loan program administered by HUD under Section 221 of the National Housing Act. It provides a 40-year fully amortizing loan — 5 years of construction interest-only plus 35 years of permanent amortization — that is non-recourse to the borrowing entity, fixed-rate for the full term, and rate-locked at initial endorsement.
221(d)(4) is the only 40-year fully amortizing construction loan in the U.S. multifamily market. The most common competitors — bank construction loans paired with permanent take-outs, LIHTC syndicator equity, and agency (Fannie/Freddie) forward commitments — all cap at materially shorter combined terms, carry recourse or refinance risk, or both. For long-hold ground-up developers and substantial-rehab sponsors who want to lock fixed-rate, non-recourse, fully amortizing debt over a multi-decade horizon, 221(d)(4) is the gold-standard execution.
On this page you'll find the four current 221(d)(4) variants, deep-dives on Davis-Bacon prevailing wage, construction-period mechanics, the Middle Income Housing carve-out under Notice H 2025-01, and answers to the questions developers and MAP lenders ask most.
221(d)(4) variants at a glance (2026)
The table below summarizes the four primary 221(d)(4) executions, including minimum loan size, maximum term, leverage caps, and minimum DSCR. The mission badge denotes variants that qualify for the higher 90% LTC affordable-housing leverage tier.
| Program | Purpose | Min loan | Max term | Max LTC | Min DSCR |
|---|---|---|---|---|---|
221(d)(4) Market-Rate NC New construction | Ground-up new construction; market-rate rents | $5M | 40 yrs | 87% LTC | 1.15x |
221(d)(4) Substantial Rehab Sub rehab | $15K/unit min rehab or replace 2+ major systems | $5M | 40 yrs | 87% LTC | 1.15x |
221(d)(4) Affordable / LIHTCmission 4% or 9% LIHTC | LIHTC, Section 8 HAP, HFA-restricted — higher leverage | $5M | 40 yrs | 90% LTC | 1.111x |
221(d)(4) Middle Incomemission Notice H 2025-01 | Middle Income Housing option (Jan 2025); workforce-housing AMI bands | $5M | 40 yrs | 90% LTC | 1.111x |
Variant deep-dives
221(d)(4) Market-Rate New Construction
The market-rate new-construction execution finances ground-up multifamily development at unrestricted market rents. Minimum loan size is $5M, leverage tops out at 87% LTC per Notice H 2025-01 (raised from the prior 85% cap), and minimum DSCR is 1.15x. Sponsors typically contribute 13–15% of total project cost in equity. Davis-Bacon prevailing wage applies, as do HUD's construction-cost benchmarks for the project's MSA. Typical execution timeline from application to initial endorsement runs 9–14 months.
221(d)(4) Substantial Rehabilitation
Substantial-rehab transactions use the same 87% LTC / 1.15x DSCR market-rate terms as new construction but apply to existing properties undergoing rehab of at least $15,000 per unit (adjusted by HUD's High Cost Percentage factor in expensive markets) or replacement of two or more major building systems — HVAC, roof, electrical, plumbing, elevators, structural. Cosmetic-only upgrades do not qualify; lighter-touch refis route to 223(f) instead. Substantial rehab is a key tool for preserving aging Class B/C multifamily inventory.
221(d)(4) Affordable / LIHTC
The affordable execution applies to LIHTC properties (4% or 9%), Section 8 HAP-contracted properties, state and local HFA-restricted transactions, and other rent- or income-restricted assets. Affordability unlocks more aggressive leverage — up to 90% LTC at 1.111x DSCR — because the rent restrictions reduce credit risk and the loan supports HUD's housing-mission priorities. The 221(d)(4) + 4% LIHTC + tax-exempt bond stack is one of the most common affordable-housing capital structures in the U.S. multifamily market.
221(d)(4) Middle Income Housing
Introduced by Notice H 2025-01 in January 2025, the Middle Income Housing variant extends the 90% LTC / 1.111x DSCR affordable terms to workforce-housing transactions where rents are restricted to households at 80–120% AMI. The carve-out targets the structural gap in the U.S. housing capital stack — the missing middle — by giving developers FHA-insured leverage on workforce-housing product that previously had to choose between market-rate underwriting or traditional ≤60% AMI affordability restrictions.
Middle Income Housing (Notice H 2025-01)
Notice H 2025-01, issued by HUD's Office of Multifamily Housing in January 2025, created a dedicated Middle Income Housing option inside the 221(d)(4) framework. The notice was driven by widespread industry input on the missing-middle problem: U.S. households earning between 80% and 120% of area median income are too affluent for traditional LIHTC product and too rent-burdened for unrestricted market-rate development in most metro markets.
The Middle Income carve-out works by extending the affordable-tier credit terms — 90% LTC and 1.111x DSCR — to projects that restrict rents to 80–120% AMI households. The new AMI bands sit above the traditional ≤60% AMI LIHTC threshold but below market rents. Critically, the Middle Income option does not replace the traditional Affordable / LIHTC carve-out — sponsors can layer the two within a single project (for example, a mixed-income property with a ≤60% AMI LIHTC component and an 80–120% AMI Middle Income component).
The notice also raised the market-rate LTC cap from 85% to 87%, signaling HUD's broader effort to keep 221(d)(4) economically competitive against bank construction debt in a higher-rate environment. Application volume under the Middle Income option has grown rapidly since launch.
Davis-Bacon prevailing wage
Davis-Bacon prevailing wage applies to every 221(d)(4) transaction — both new construction and substantial rehabilitation. The general contractor and all subcontractors at every tier must pay wages no lower than the locally determined Davis-Bacon rates published by the U.S. Department of Labor for the project's county and the trade categorization of each worker.
Construction cost impact: Davis-Bacon typically adds 5–15% to hard construction costs versus prevailing open-shop market wages. The premium is small or negligible in heavily unionized markets (NYC, Chicago, San Francisco) where market wages already meet or exceed Davis-Bacon scale, and material in non-union states (much of the Southeast, parts of the Mountain West) where market wages run well below Davis-Bacon. Sponsor pro formas should be stress-tested against the project's county-specific wage determinations before locking the budget.
Certified payroll: Every contractor and subcontractor submits weekly certified payroll reports to the HUD field office, listing each worker, the trade classification, hours worked, and gross wages. HUD audits payroll for misclassification (the most common compliance issue) and for back-wage liability. Davis-Bacon back-wage claims can land years after construction completion and are a personal liability of the contractor.
Construction period mechanics
At initial endorsement, HUD insures the full 40-year loan amount. The first 5 years are the construction phase: the loan is interest-only on outstanding draws and is funded incrementally through monthly construction draws against approved budget line items. Each draw request is reviewed by the MAP lender, then by HUD's construction analyst and HUD inspectors who verify physical progress against the requested draw amount before funds are released.
The interest rate is locked at initial endorsement for the full 40-year term, so the sponsor has no interest-rate exposure during the construction period and no take-out execution risk at conversion. At final endorsement, after construction is complete and HUD has signed off on cost certification, the loan automatically converts to the 35-year fully amortizing permanent phase. There is no separate take-out loan, no re-underwriting, and no refinance risk.
Cost certification reconciles actual hard and soft costs against the budget approved at initial endorsement. The general contractor, the mortgagor, and a HUD-acceptable independent CPA each submit certifications. If actual costs came in materially below budget, HUD may reduce the loan at final endorsement — the so-called cost-cert haircut — which can permanently impair sponsor equity returns. Disciplined pre-development budgeting and tight construction-cost controls are essential.
Eligibility essentials
The core borrower, property, and capital-stack requirements that apply across 221(d)(4) variants:
- Borrower: single-asset entity (typically Delaware LLC); HUD-approved sponsor; mortgagee letter prequalification through the MAP lender; experienced multifamily developer with comparable completed projects
- Property: 5+ residential units; either ground-up new construction or substantial rehab (>$15K/unit hard costs or replacement of 2+ major systems); commercial income capped at <20% of effective gross income
- Capital stack: sponsor equity typically 10–15% of total project cost; LIHTC equity, soft loans, deferred developer fee, and TIF allowed; HUD reviews the full stack for sources-and-uses balance
- Master Servicer / Construction Lender split: the MAP lender originates and acts as construction lender; loan is sold into Ginnie Mae MBS at final endorsement; a Master Servicer handles ongoing servicing
- MIP load: 1.00% upfront MIP paid at initial endorsement plus 0.25% annual MIP on outstanding principal for the life of the loan (reduced rates apply for affordable and energy-efficient executions)
- Recourse: non-recourse to the borrowing entity with standard HUD carve-outs (fraud, environmental, voluntary bankruptcy, unauthorized transfer)
Frequently asked questions
What is HUD Section 221(d)(4)?
Section 221(d)(4) is the FHA-insured multifamily construction and substantial-rehabilitation loan program administered by HUD. Authorized under Section 221 of the National Housing Act, it provides a 40-year fully amortizing loan (5 years construction interest-only plus 35 years permanent amortization) that is non-recourse to the borrower. 221(d)(4) is the only 40-year fully amortizing construction loan execution in the U.S. multifamily market — bank construction loans and agency forward commitments cap at much shorter terms, which makes 221(d)(4) the gold standard for long-hold ground-up multifamily developers and substantial-rehab sponsors.
What is the maximum loan-to-cost for 221(d)(4) market-rate vs affordable?
Market-rate new construction and substantial-rehab transactions are eligible for up to 87% LTC under Notice H 2025-01, which raised the cap from the prior 85% threshold. Affordable executions (LIHTC, Section 8 HAP, HFA-restricted) and Middle Income Housing transactions under Notice H 2025-01 qualify for up to 90% LTC. Minimum DSCR is 1.15x at 87% LTC and 1.111x at 90% LTC. Sponsors typically contribute 10–15% of total project cost in equity, depending on the leverage tier.
When does Davis-Bacon prevailing wage apply to 221(d)(4)?
Davis-Bacon prevailing wage applies to every 221(d)(4) transaction — both new construction and substantial rehabilitation. The general contractor and all subcontractors must pay wages no lower than the locally determined Davis-Bacon rates published by the U.S. Department of Labor for the project's county and trade categorization. Certified weekly payroll reports are submitted to the HUD field office throughout construction. Davis-Bacon typically adds 5–15% to hard construction costs depending on market — significantly more in non-union states where prevailing market wages run well below Davis-Bacon scale.
How does the 5-year construction period work?
At initial endorsement HUD insures the full 40-year loan amount; the first 5 years are the construction phase, during which the loan is interest-only and funded through monthly construction draws against approved budget line items. HUD inspectors verify each draw before funds release. At final endorsement (post-construction, after cost certification and HUD sign-off) the loan automatically converts to the 35-year fully amortizing permanent phase — no separate take-out, no re-underwriting, and no interest-rate risk because the rate was locked at initial endorsement.
What qualifies as substantial rehabilitation under 221(d)(4)?
Substantial rehab is defined as either (a) hard rehab costs of at least $15,000 per unit (adjusted by HUD's High Cost Percentage factor in expensive markets), or (b) replacement of two or more major building systems — for example HVAC, roof, electrical, plumbing, elevators, structural elements. Cosmetic-only upgrades do not qualify. If a project doesn't meet substantial-rehab thresholds, the appropriate execution is typically 223(f) for acquisition/refi rather than 221(d)(4).
What is the Middle Income Housing carve-out under Notice H 2025-01?
Notice H 2025-01, issued January 2025, introduced a Middle Income Housing option that extends the 90% LTC / 1.111x DSCR affordable terms to workforce-housing transactions where rents are restricted to households at 80–120% of area median income. Previously the higher leverage was available only to traditional LIHTC and Section 8 transactions targeting ≤60% AMI. The Middle Income carve-out fills a structural gap in the U.S. housing capital stack — the so-called missing middle — and has driven meaningful new 221(d)(4) application volume since launch.
What is cost certification and what does it involve?
Cost certification is HUD's post-construction audit that reconciles actual hard and soft costs against the budget approved at initial endorsement. The general contractor, the mortgagor, and a HUD-acceptable independent CPA each submit certifications detailing actual costs. If actual costs come in below budget, the loan may be reduced at final endorsement (the so-called cost-cert haircut). Conservative pre-development budgeting and tight construction-cost controls are essential because cost-cert reductions can permanently impair sponsor equity returns.
Can 221(d)(4) be combined with 4% LIHTC and tax-exempt bonds?
Yes — the 221(d)(4) + 4% LIHTC + tax-exempt bond structure is one of the most common affordable-housing capital stacks in the U.S. multifamily market. The FHA insurance enhances the bond rating, the 4% LIHTC equity contribution (typically 25–35% of project cost) reduces required debt, and the 90% LTC / 1.111x DSCR affordable terms apply. Bond underwriting, HUD underwriting, and LIHTC syndicator due diligence run in parallel — execution timelines are typically 12–18 months from application to initial endorsement.
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