SBA 504 Loans for Commercial Real Estate: How Owner-Occupied Financing Actually Works

Who This Loan Is Actually For

An SBA 504 loan is not an investor loan — it finances a business buying (or building, or substantially improving) the real estate it operates out of. If you are a business owner tired of paying rent, or your landlord just listed the building you occupy, this is the program built for exactly that decision.

The Structure — Three Pieces, Not One Loan

A 504 deal is not a single mortgage; it is three layers stacked together:

50% conventional first mortgage from a bank or non-bank lender, at market commercial rates.

40% SBA-backed second mortgage through a Certified Development Company (CDC), at a below-market fixed rate — this is the piece that makes 504 financing attractive.

10% borrower down payment (higher — typically 15–20% — for special-use properties like hotels or gas stations, or for a startup business under two years old).

That structure is what lets a business buy real estate with as little as 10% down while still locking a long-term fixed rate on 40% of the deal.

The Owner-Occupancy Requirement

Your business must occupy more than 51% of the building for an existing property, or 60% for new construction (with a plan to eventually occupy 80%+). This is a hard eligibility line, not a guideline — a 504 loan is not available for a pure investment property you plan to lease out entirely to third parties.

Eligibility, Beyond Occupancy

For-profit business, operating in the U.S.

Tangible net worth under $20 million

Average net income under $6.5 million (after federal taxes) for the two years prior to applying

Owner-occupied use for offices, retail, medical, industrial, warehouse, hospitality, and similar commercial property types

What It Can Be Used For

Purchasing an existing building, ground-up construction, substantial renovation or expansion, and even long-term equipment tied to the real estate. It is specifically a real-estate-and-fixed-asset program — not working capital.

Maximum Loan Size

The SBA-backed portion caps at $5.5 million, which combined with the 50% conventional first mortgage means total project financing can reach well into eight figures depending on the deal.

SBA 504 vs. SBA 7(a) — Not the Same Program

7(a) is the SBA's general-purpose loan, usable for working capital, equipment, and real estate together, with more flexibility but a smaller real-estate-specific benefit. 504 is purpose-built for owner-occupied real estate and major fixed assets, and its below-market fixed-rate second mortgage is usually the better structure when real estate is the primary need.

Where 818 Fits

818 Capital is a direct lender on DSCR, bridge, and commercial investment paper — SBA 504 sits outside our direct book, but we source and place these deals through our lending partner network for business owners ready to buy the building they operate in. Send us the business financials, the property, and the timeline and we will tell you whether 504 is the right structure or whether conventional owner-occupied commercial financing gets you there faster.