What is the SBA 51 percent owner-occupancy rule?
The SBA requires the borrowing business to occupy at least 51 percent of the rentable square footage of an existing building financed with a 7(a) or 504 loan, and at least 60 percent of a newly constructed building with a plan to reach 80 percent within ten years. The remaining space can be leased to tenants, which is how many owner-users cover part of the payment.
The rule in numbers
| Situation | Minimum occupancy by your business |
|---|---|
| Existing building | 51 percent at closing |
| New construction | 60 percent at completion, 80 percent within 10 years |
| Space leased to third parties | Up to 49 percent (existing) or 40 percent falling to 20 percent (new) |
| Space leased to affiliates you control | Counts as occupied by your business |
How occupancy is measured
By rentable square footage, not by value or income. Common areas are usually allocated proportionally. A 10,000 square foot building where your business uses 5,100 square feet qualifies; 4,900 does not. Lenders verify with a floor plan and, at closing, the leases for any tenant space.
What counts as your business
The operating company that is the borrower or the guarantor, plus affiliates under common control. A common structure is a holding company that owns the building and leases it to your operating company; the SBA treats that as owner-occupied when the two are affiliated and the lease is at market with no profit built in for the holding company beyond the debt service.
What does not qualify
- Apartment buildings and rental houses: passive real estate.
- Buildings leased entirely to third parties.
- Self storage or hotels you do not operate.
- Space leased to your business by a landlord you do not control.
Why the rule exists
SBA programs support operating businesses, not real estate investment. The occupancy test is how the program separates the two. It is also why an investor buying a multi-tenant office building cannot use SBA unless their own business will fill most of it.
Planning around it
- Buy a building slightly larger than you need and lease the extra 30 to 40 percent. The rent offsets the payment and the space is there when you grow.
- On new construction, design for 60 percent occupancy at opening with tenant space that converts to your use over time.
- Document affiliate leases properly so the lender can count them.
Refinancing
The occupancy rule also applies to SBA refinances of existing commercial debt. If your business has shrunk below 51 percent of the building, the refinance will not qualify until occupancy is restored.
How CommFi handles it
Our lending desk checks the occupancy math on the floor plan before you apply, and structures affiliate leases so they count. SBA loans fund through approved lenders, so the desk searches a database of 7,000+ lenders and puts the file in front of the ones active in your industry, and they compete. Zero upfront fees.
Related reading
Related questions
- What is the SBA 51 percent rule?
- The borrowing business must occupy at least 51 percent of the rentable square footage of an existing building financed with an SBA loan.
- Can I rent out part of a building bought with an SBA loan?
- Yes, up to 49 percent of an existing building or 40 percent of a new build, falling to 20 percent within ten years.
- Does space leased to my own company count as occupied?
- Yes. Space used by the operating company or affiliates under common control counts as occupied by your business.
- Can I buy an apartment building with an SBA loan?
- No. Residential rental property is passive real estate and is not eligible.
- How is occupancy measured for SBA loans?
- By rentable square footage on the floor plan, with common areas allocated proportionally, verified by the lender at closing.
Property developer and licensed appraiser. 22+ years in real estate: TIC conversions, multi-unit redevelopments, mixed-use, fix and flips, commercial DSCR.