Marina Financing: Broker Guide to CRE Loans for Marinas and Boatyards

Marina financing is one of the most specialized corners of commercial real estate lending. Marinas are hospitality businesses, real estate assets, and waterfront infrastructure all at once, which pushes them out of the box for most generalist commercial lenders. This broker guide walks through the full lender landscape for marina financing, from SBA 504 and 7(a) for owner-operators to CMBS and life company debt for institutional-scale properties, plus the underwriting factors that make marinas different from any other commercial deal.

The Marina Financing Lender Landscape

There is no single "marina loan." Marina financing typically pulls from six main lender categories, and the right execution depends on deal size, sponsor profile, geography, and business plan.

SBA 504 for Owner-Operated Marinas

SBA 504 is one of the most common marina financing structures for owner-operators. The 504 program uses a three-party structure: a conventional first mortgage (typically 50 percent of project cost), a CDC debenture (typically 40 percent, SBA-guaranteed), and borrower equity (typically 10 percent, or 15 percent for special-purpose properties). Because marinas are treated as special-purpose, most SBA 504 marina deals require 15 percent equity from the borrower.

Terms on the CDC debenture portion are typically 25 years fully amortizing at a fixed rate. The first mortgage bank loan terms depend on the lender. SBA 504 works well for marina acquisitions, expansions, dock replacements, and major equipment purchases. For a broader look at the program, see the Janover Pro guide to SBA loans for small businesses and real estate.

SBA 7(a) for Business-Heavy Marina Deals

SBA 7(a) is the more flexible SBA program. It can finance real estate, business acquisitions, equipment, and working capital in a single loan up to $5 million. Amortization on real estate can reach 25 years; goodwill and business assets amortize over 10 years. SBA 7(a) fits marina deals where the operating business (fuel dock, service, ships store, restaurant) is a large share of value and the sponsor wants a single-loan solution.

USDA B and I for Rural Marinas

Marinas in USDA-eligible rural areas can access the Business and Industry (B and I) Guaranteed Loan Program. USDA guarantees 80 to 85 percent of a loan made by an approved commercial lender, which enables terms up to 30 years on real estate, up to 15 years on equipment, and competitive fixed or variable rates. The Janover Pro USDA loan for rural hotel or motel guide walks through the B and I program mechanics, which apply similarly to rural marinas.

CMBS for Institutional Marinas

CMBS conduits will finance stabilized marinas at institutional scale, typically $5 million and up, with clean environmental, strong cash flow, and a track record of stable operations. Terms are typically 5, 7, or 10 years fixed with 25- to 30-year amortization, non-recourse, and defeasance or yield maintenance prepayment. CMBS marina loans size to 55 to 65 percent LTV, 1.40x to 1.50x DSCR, and 9 to 11 percent debt yield. For the broader CMBS mechanics, see the broker guide to CMBS loans.

Life Company Debt for Larger Investment-Grade Marinas

Life insurance companies will finance high-quality marinas for the right sponsor and property. Life company marina loans are typically 10 to 25 years fixed rate, 55 to 65 percent LTV, 1.30x to 1.40x DSCR, and non-recourse. Life companies prefer marinas with strong location, minimal environmental risk, and stabilized cash flow. The life company loans guide covers the broader program.

Bank Debt for Local and Relationship Deals

Community and regional banks with waterfront market experience remain a common marina financing source, especially for local operators. Bank marina debt is typically 5 to 10 years fixed with 20- to 25-year amortization, recourse to the sponsor, and priced off a bank base rate. Bank flexibility on structure and process often outweighs the higher rate compared to CMBS or life company alternatives.

Bridge Debt for Value-Add and Repositioning

Marinas undergoing repositioning, dock replacement, or business transition often need bridge debt before qualifying for permanent execution. Bridge marina loans typically stretch to 65 to 75 percent loan-to-cost, priced above SOFR, with 24- to 36-month terms and interest reserves. See the bridge loans guide for the broader mechanics.

What Makes Marina Underwriting Unique

Marinas do not underwrite like typical commercial real estate. Brokers who treat a marina like a hotel, a self-storage facility, or a retail property will get pushback from lenders on the first submission. Here are the underwriting factors that specifically drive marina deals.

Slip Count and Slip Mix

Slip count is the marina equivalent of unit count on a multifamily property. Wet slips, dry storage, transient slips, and mooring balls each have different revenue profiles and operating cost structures. Wet slips typically generate the highest annual revenue per slip but require the most dock infrastructure and maintenance. Dry storage is lower revenue per unit but often higher margin. Transient slips deliver seasonal spikes.

Lenders want a clear slip-by-slip breakdown: how many wet vs dry, what sizes, what current occupancy, what rates, what waiting list dynamics. A marina with 200 slips at 95 percent annual occupancy on a two-year waiting list underwrites very differently from a marina with the same slip count and 60 percent occupancy.

Seasonality and Winter Storage

Most marinas outside of Florida and southern coastal markets have significant seasonality. Northern marinas may draw the majority of annual revenue between May and October. Underwriters look at trailing 12-month operating statements plus seasonal cash flow patterns to size debt that survives the off-season.

Winter storage revenue matters. Marinas that offer haul-out, indoor storage, or shrink-wrap services generate off-season cash flow and margin that helps stabilize the annual operating profile. Marinas without winter storage income are more exposed to seasonal cash flow stress.

Fuel Dock and Ancillary Revenue

Fuel sales are often the largest ancillary revenue stream at a marina, but they are also volatile. Fuel margin depends on wholesale prices, competition, and local demand. Lenders typically underwrite fuel revenue at a conservative margin and normalize for volatile years.

Ancillary revenue can also include the ships store, restaurant, boat sales and brokerage, service and repair, seasonal events, and short-term rentals. Each stream carries its own operating margin and volatility profile. Break the operating statement apart and show each revenue line with its associated cost of goods and direct expenses.

Environmental Risk

Environmental risk is the single largest underwriting factor unique to marinas. Fuel storage tanks (above-ground and underground), oil-water separators, stormwater management, shoreline stabilization, hull-cleaning byproducts, and historical uses all create potential contamination liability. Every marina financing package requires at minimum a Phase I Environmental Site Assessment. Deals with material findings typically require Phase II sampling, remediation plans, and sometimes environmental insurance.

Lenders may require additional reserves or letters of credit to protect against environmental liability. Sponsors with a clean environmental history and documented compliance procedures move faster through underwriting than sponsors with historical issues.

Submerged Land and Riparian Rights

The real estate under a marina is not always fee-simple owned. Many marinas operate under submerged land leases with state or federal agencies, and riparian rights vary by state. Lenders diligence the lease term, renewal provisions, rent escalators, and any restrictions on use.

A marina on a 40-year submerged land lease with 30 years remaining underwrites very differently from a marina on a 40-year lease with 5 years remaining and no renewal option. Match the loan term to the lease term. Most lenders will not extend a loan beyond the remaining ground or submerged land lease term.

Local Boating Demographics and Demand

Marina cash flow depends on local boat ownership, tourism, and marine industry activity. Lenders look at the local boater population, competing marinas, waiting list dynamics at comparable facilities, and long-term trends in registered boats in the area. Marinas in growing coastal and lake markets with limited new supply have a fundamentally different risk profile than marinas in flat or declining markets.

Typical Marina Financing Terms by Program

Rates and structures vary by lender and market cycle. Use these ranges as a starting benchmark and confirm with active lenders for current market pricing.

Packaging a Marina Financing Deal

Marina financing lives or dies on the quality of the loan package. Here is what belongs in the file before you approach lenders.

Property Description and Slip Rent Roll

Include a full property description, aerial photos, a site plan showing all slips and dock configurations, and a slip-by-slip rent roll. The rent roll should identify each slip by number, size (length and beam), type (wet, dry, transient, mooring), current tenant, current annual rate, occupancy status, waiting list position where relevant, and any long-term leases.

Three-Year Operating Statements Plus Trailing 12-Month

Show three years of historical operating statements plus a trailing 12-month operating summary. Break out revenue by source: slip fees, fuel, ships store, service, dry storage, transient, events, and other. Break out expenses by category: payroll, insurance, utilities, maintenance, dock repair, fuel costs, cost of goods sold, marketing, professional fees, and reserves.

Marinas that separate operating expenses cleanly and consistently move faster through underwriting than marinas with commingled expense categories. Run a NOI calculation and a DSCR check at the target loan sizing before you approach lenders.

Environmental Documentation

Include the most recent Phase I Environmental Site Assessment and any Phase II reports. Document current fuel storage tanks (type, capacity, age, compliance status), oil-water separator maintenance records, stormwater management plans, and any known historical environmental issues with remediation status.

Submerged Land Lease or Deed

Provide the underlying real estate documents: fee-simple deed for owned property, submerged land lease documents for leased water bottoms, and any riparian rights documentation. Highlight remaining lease term, renewal options, and rent escalators.

Sponsor Background and Operating Experience

Marina operations require specialized experience. Document the sponsor's marina operating history, general manager and dockmaster resumes, and any management company track record. First-time marina buyers should either pair with an experienced operator or hire a proven management company from day one.

Business Plan

For value-add and repositioning deals, include a specific business plan with a timeline, capital budget, and projected stabilized operating profile. Show what changes and why the changes produce the projected revenue and expense improvements.

Marina Financing vs Other Waterfront Hospitality Options

Common Pitfalls and How to Avoid Them

Treating a Marina Like a Hotel or Storage Deal

Marinas are their own asset class. Lenders that treat marinas as generic hospitality or generic self-storage will misprice risk, and lenders that avoid marinas entirely will not close. Filter your lender pool to those with active marina experience before you submit.

Underestimating Environmental Diligence

Environmental issues sink more marina deals than any other underwriting factor. Get the Phase I early, address any red flags before submission, and be ready to fund Phase II sampling and remediation if required. Sponsors that try to close a marina without clean environmental documentation almost always end up in a longer, more expensive process.

Ignoring the Submerged Land Lease

Loan term cannot exceed the remaining ground or submerged land lease term (minus a buffer). Marinas on short-remaining leases may need to renegotiate the lease before financing can close. Verify lease term early and factor renewal negotiations into the timeline.

Overstating Fuel Margin

Fuel revenue is volatile. Sponsors sometimes present peak-year fuel margins as normalized run-rate. Lenders will normalize. Present three years of fuel volume and margin data and use a conservative underwriting margin in the proforma.

Weak Operator Documentation

Marinas require operating expertise. Sponsors who cannot document marina operating experience or a strong third-party management arrangement will hit resistance from most lenders. Solve the operator question before the financing question.

Missing Seasonal Cash Flow Analysis

Annual DSCR is not enough on a seasonal marina. Lenders want to see how the property funds off-season operating costs, debt service, and reserves. Show a month-by-month cash flow model plus a seasonal reserve or operating line structure.

Use Cases: Where Marina Financing Deals Make Sense

Owner-operator marina acquisition: A local sponsor with marine industry experience buying a 100- to 200-slip marina in the $3 million to $8 million range. SBA 504 is often the right fit, providing up to 90 percent of project cost (with 15 percent equity for special-purpose treatment) and long amortization on the real estate portion.

Institutional marina portfolio: A private equity buyer acquiring a stabilized marina or a small portfolio of marinas at $10 million or more. CMBS or life company debt provides non-recourse permanent financing at 55 to 65 percent LTV with 5- to 10-year fixed terms.

Value-add repositioning: A sponsor acquiring a tired marina, replacing docks, upgrading the fuel dock, adding dry storage, and rebranding. Bridge debt at 65 to 75 percent LTC funds the acquisition and capital plan. Permanent takeout is planned through CMBS, life company, or bank debt after stabilization.

Rural lake or river marina: A marina on a lake, river, or coastal market in a USDA-eligible rural area. USDA B and I financing provides up to 30-year amortization on real estate with a federal guarantee that makes the deal financeable at community banks that would not offer competitive terms on an unguaranteed basis.

Marina expansion or new construction: A sponsor adding slips, expanding dry storage, or building a new marina on approved waterfront. Construction financing typically comes from a bank or SBA 504, with permanent takeout planned at stabilization.

Working with Marina Specialists

Marina financing benefits from specialist involvement across the transaction. Marina appraisers understand slip mix, dock condition, and comparable sales in ways that generalist appraisers do not. Marina environmental consultants know what to look for at fuel docks and hull-cleaning areas. Marina brokers with sale-side experience often have the operating data lenders want.

On the lender side, prioritize firms that have closed marina deals in the past 24 months. Ask for representative closings and how the lender handled the specific underwriting issues that come up on marinas: environmental, submerged land leases, seasonality, and slip mix. A lender's willingness to talk specifics is a strong signal of real marina experience.

Frequently Asked Questions