Conventional commercial loan feasibility study.

Bank construction lending in 2026 operates predominantly through mini-perm 3-to-5-year structures, with construction loans rolling into either bank-held mini-perm or being taken out by life-co, CMBS, or agency permanent debt at stabilization. Post-SVB regulatory scrutiny and the December 5, 2025 rescission of the 2013 Interagency Leveraged Lending Guidance have produced a market where banks selectively returned to construction lending — depository CRE originations grew 74 percent year-over-year in Q4 2025 — with tighter documentation expectations even as examiner posture lightened.

Bank construction underwriting tiers split by lender size. Money-center banks (JPMorgan Chase, Wells Fargo, Bank of America, Citi) underwrite institutional-scale construction debt, typically $50M and up, with strong sponsor and project documentation requirements. Super-regionals (PNC, Truist, Regions, Fifth Third, US Bank) handle the $10M-$100M range. Regional and community banks fund deals in the $2M-$30M range, often with more sponsor-relationship-driven underwriting and lighter documentation expectations.

Feasibility study expectations scale with lender tier and deal complexity. Money-center construction lending almost always requires standalone feasibility analysis. Super-regional lending often does. Regional and community bank lending varies — many community banks accept the appraisal's market analysis section in lieu of standalone feasibility for stabilized refinance, but require feasibility for ground-up construction, lease-up bridge, or value-add transitional deals.

CMBS financing operates through two structural variants. Conduit deals pool 30 to 60 individual loans into a single rated securitization, with each loan typically running $5M to $75M; aggregate conduit issuance reached approximately $90B in 2025. SASB transactions securitize a single large loan or portfolio independently, starting at $75M and frequently exceeding $500M for trophy assets, hyperscale data centers, and institutional industrial portfolios; SASB issuance reached approximately $65B in 2025.

CMBS underwriting is governed by rating agency methodology rather than lender credit policy. KBRA Property Evaluation Methodology (updated January 9, 2026), S&P Global CMBS Property Evaluation Methodology Guidance, Fitch U.S. and Canadian Multiborrower Rating Criteria, Moody's Approach, and DBRS Morningstar North American CMBS methodology each publish detailed property evaluation standards that drive feasibility scope. B-piece buyers — Rialto, KKR, Eightfold, Prime Finance, Ellington — gate the bottom of the capital stack and effectively decide which loans clear into the rated pool by exercising their kick-out rights at securitization.

DSCR thresholds typically run 1.20x to 1.35x for conduit and 1.15x to 1.30x for SASB on premium assets. Debt yield, the post-2008 second filter, runs 8 to 10 percent for conduit and 7 to 9 percent for SASB. Feasibility study requirements are routine for transitional deals (lease-up, value-add, conversion), specialty asset classes (hospitality, senior housing, manufactured housing), and any deal where comparable supply analysis or tenant rollover scrutiny is operationally important.

Life-insurance companies hold approximately $704 billion in CRE and multifamily debt as of 2025-2026, making them collectively one of the largest CRE lender categories. The structural feature that distinguishes life-co lending from CMBS is hold period — life-cos hold loans on balance sheet for 20 to 30 years, which drives a structurally different underwriting posture. Where CMBS sells the credit risk into a securitization within months of close, a life-co underwrites for the entire 25-year hold.

Major life-co allocators include PGIM (industrial heavy), MetLife (diversified institutional), Northwestern Mutual (industrial and multifamily), Principal (industrial), MassMutual (industrial and multifamily), Pacific Life (multifamily), Symetra, and TIAA-Nuveen. Allocation patterns shifted notably through 2025: industrial up sharply, multifamily steady, office down, senior housing returning, data centers rising. Total ACLI commercial mortgage commitments in 2025 exceeded $80B in new originations.

Life-co underwriting runs tighter than CMBS on DSCR (1.30x to 1.50x) and LTV (55 to 65 percent), and adds debt yield as a hard threshold (8 to 10 percent). Life-cos require feasibility studies for construction, lease-up bridge financing, hospitality, senior housing, manufactured housing, student housing, and tax-credit affordable. For stabilized permanent loans on income property, MAI appraisal often carries the market analysis without standalone feasibility commission — Section 12 below covers when this distinction matters.

Fannie Mae's Delegated Underwriting and Servicing (DUS) program and Freddie Mac's Optigo platform together govern the largest share of US multifamily debt. FHFA 2026 caps total $176 billion ($88 billion per Enterprise), up from $146 billion in 2025. Mission-driven set-asides — workforce housing, affordable, manufactured housing — count toward the cap; market-rate allocation fills the balance.

Fannie DUS lender designations are governed by Form 4165 capital tests (updated August 2024); active DUS lenders include Walker & Dunlop, Berkadia, Greystone, JLL, CBRE, Newmark, Capital One, KeyBank, PNC, and Wells Fargo. Freddie Optigo segments into Small Balance Loan (SBL, $1M to $7.5M), Conventional ($7.5M+), and Targeted Affordable Housing (TAH for LIHTC and bond deals). The two agency platforms compete actively, which drives spread compression and execution speed.

Agency multifamily feasibility scope varies by deal status. Stabilized refinance typically does not require standalone feasibility; the DUS or Optigo lender's underwriting plus appraisal market section suffices. Construction, lease-up bridge, value-add transitional, and any deal involving NCHMA-aligned methodology (LIHTC, workforce, tax credit) generally require feasibility. Market study scope for agency multifamily increasingly aligns with NCHMA Model Content Standards, particularly the September 2025 update.

HUD/FHA multifamily and healthcare programs operate through the Multifamily Accelerated Processing (MAP) framework for 221(d)(4) construction and 223(f) refinance, and through the LEAN healthcare process for Section 232 (skilled nursing, assisted living, board-and-care). MAP Guide March 2021 provides the base regulatory framework, layered with Mortgagee Letters through 2026. The MIP reduction to 0.25 percent effective October 1, 2025 represents a meaningful pricing tailwind for HUD-financed multifamily and healthcare deals.

Market study requirements for 221(d)(4) include full market study at pre-application and again at firm commitment; 223(f) requires abbreviated market study; 232 LEAN runs through HUD Office of Healthcare Programs with separate seniors-housing-focused expectations. Required HUD forms include 92273 (rent comparables), 92274 (operating expenses), and 92264 (project income/appraisal). NCHMA Model Content Standards alignment is increasingly expected, particularly post-September 2025 update.

HUD lending categorically lives within "conventional" classification despite the FHA insurance guarantee, because the structural underwriting framework — rating agency-style market study, defined regulatory format, balance-sheet equivalents on the lender side — operates institutionally rather than through the SBA/USDA government-direct model. The bankable framework's HUD scope is built to MAP Guide expectations and incorporates NCHMA-aligned market analysis where applicable.

Debt funds and bridge lenders fill the transitional capital gap between bank construction debt and stabilized permanent financing. Active debt funds in 2026 include Blackstone Real Estate Debt Strategies, Brookfield, KKR Real Estate Finance, Starwood Property Trust, Ares, Mesa West, Pacific Western, Bain Capital, MSD Partners, Argentic, and Greystone Capital. Bridge structures typically run 75 to 80 percent loan-to-cost, floating rate at SOFR plus 350 to 650 basis points, 2 to 3 year terms with extension options.

CRE CLO (Collateralized Loan Obligation) issuance increasingly funds debt fund balance sheets. The CRE CLO market originated approximately $30B in 2025 and serves as the securitization wrapper for transitional bridge loans. CRE CLO underwriting carries rating agency oversight similar to CMBS but with greater allowance for transitional and value-add credit profiles.

Debt fund underwriting focuses on as-stabilized value, capex budget review, lease-up timeline, and exit-takeout assumption credibility. Most bridge structures contemplate agency multifamily, CMBS conduit, or life-co takeout at stabilization. Feasibility scope must address both the bridge underwriting and the contemplated takeout — the bankable framework's debt fund scope is structured for that dual lens. Bridge financing is most active in transitional multifamily, data center development, and industrial repositioning. Hospitality bridge has thinned post-2024.

Mezzanine debt and preferred equity fill the capital stack gap between senior debt (typically 60 to 70 percent LTV) and sponsor equity (typically 10 to 20 percent), enabling 80 to 90 percent total leverage on deals where senior debt cannot reach. Mezzanine is subordinated debt secured by ownership-interest pledge with intercreditor agreement governing senior-mezz dynamics; preferred equity is structured as equity participation with preferred return waterfall, sometimes "hard pref" (debt-like with maturity and current pay) or "soft pref" (equity-like with promote-only).

Pricing typically runs 10 to 15 percent all-in for mezzanine and 10 to 14 percent preferred return for hard pref. Active mezz and pref capital sources include Brookfield, Blackstone, KKR, Starwood, BridgeInvest, Mesa West, Pacific Coast Capital Partners, and a number of family offices and high-net-worth allocators. Senior CMBS, life-co, and agency multifamily lenders increasingly accept mezz and pref behind them with intercreditor restrictions.

The bankable framework models all-in cost of capital including mezzanine or preferred equity layers, surfaces the cure-rights and intercreditor structure where applicable, and stress tests refinance risk for the layered capital stack. Note that SBA disallows mezzanine and preferred equity behind 504 senior financing — for SBA-paired deals, capital stack scope addresses this disallowance explicitly.