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](/apply) and we will tell you whether 504 is the right structure or whether conventional owner-occupied commercial financing gets you there faster.