Guides
The startup budget for a self-storage business and the ways to finance it for a small operation
Self-storage startup costs written as a sources and uses table, with the carry through lease-up separated out and funding structures compared honestly.
What to take away
- A startup budget for a self-storage business belongs in a uses schedule per rentable square foot, not a purchase list.
- The line most often missing is the carryoperating cost and debt service during lease-up. On a 200-unit site, plan $80,000 to $300,000.
- Funding is a structure question before it is a price question. SBA 7(a), SBA 504, bank loans, seller notes, and equipment financing carry different recourse and patience.
- Contingency belongs in the plan as a number5% to 10% of hard cost, 10% to 15% on a conversion.
- Equipment that keeps a unit rentable is not the same class of spending as equipment that keeps the office comfortable.
Write the costs as uses of funds
A purchase list invites you to add things up until you stop. A uses schedule forces every dollar into a category a lender recognizes. It also gives you a denominator: cost per rentable square foot.
Uses of Funds Schedule
Use of funds
- Land or building acquisition
- Purchase, closing, survey
- Sitework and shell
- Grading, drainage, paving
- Interior build
- Partitions, doors, latches
- Systems
- Gate, access, cameras
- Soft costs
- Design, permits, legal
- Lease-up carry
- Operating cost and debt service
- Contingency
- Unallocated
What sits here
- Land or building acquisition
- Cost per rentable sq ft
- Sitework and shell
- Cost per gross sq ft
- Interior build
- Cost per unit, size band
- Systems
- Cost per door served
- Soft costs
- Share of total uses
- Lease-up carry
- Months covered
- Contingency
- Share of hard cost
Denominator to watch
- Land or building acquisition
- Sitework and shell
- Interior build
- Systems
- Soft costs
- Lease-up carry
- Contingency
| Use of funds | What sits here | Typical 2026 range and denominator |
|---|---|---|
| Land or building acquisition | Purchase, closing, survey, environmental work | $100,000 to $400,000 per acre in secondary markets, or $6 to $25 per rentable square foot after site coverage |
| Sitework and shell | Grading, drainage, paving, foundations, structure | $35 to $65 per gross square foot for drive-up metal; $70 to $110 for multi-story climate-controlled |
| Interior build | Partitions, doors, latches, corridors, conditioned space | $10 to $20 per rentable square foot drive-up; $35 to $60 climate-controlled; $4,000 to $12,000 per unit |
| Systems | Gate, access control, cameras, lighting, management software | $25,000 to $120,000 for a 150 to 300 door site, or $150 to $500 per door |
| Soft costs | Design, permits, legal, insurance binders, financing fees | 10% to 20% of hard cost |
| Lease-up carry | Operating cost and debt service until stabilization | M times (F plus D minus R), often $80,000 to $300,000 for a small site |
| Contingency | Unallocated | 5% to 10% of hard cost, 10% to 15% on a conversion |
The interior build turns the unit mix decision into money. A corridor of small units costs $35 to $60 per rentable square foot to build; a row of large drive-up doors costs $10 to $20. The small units rent for more per square foot, so the trade is cash up front against rent per foot.
The carry row is the one people leave out entirely. That omission is why the order in which startup decisions are made matters so much.
The carry line, in named variables
Let F be monthly fixed operating cost at full staffing, D monthly debt service, and M the months to reach stabilized occupancy. Let R be the revenue the site earns on average during that ramp. R sits well below stabilized revenue because occupancy is climbing.
Carry Requirement Variables
- FMonthly fixed operating cost
- DMonthly debt service
- MMonths to stabilized occupancy
- RAverage revenue during ramp
The carry requirement is roughly M times (F plus D minus R). You control every assumption except M. The market sets M through absorption.
A worked example: 200 units, 25,000 rentable square feet, $2.4 million hard cost. F is $4,000, D is $14,000, R is $5,000, M is 18 months. Carry is 18 times $13,000, or $234,000.
To make the plan honest, compute the carry at your assumed absorption and again at two thirds of it. Fund the larger figure. The absorption arithmetic behind M is in the lease-up model for a new facility.
Funding structures, compared on the terms that bite
- Conventional commercial mortgage. A bank or credit union loan, such as a self-storage loan from Live Oak Bank, often prices at prime plus 1.5 to 3 points. It usually offers the lowest quoted rate and the shortest patience for lease-up. Ask what happens at the first covenant test if occupancy is behind plan.
- Guaranteed small business lending. SBA 7(a) loans run up to $5 million, with real estate amortization up to 25 years and a personal guarantee. SBA 504 loans use a Certified Development Company, typically require 10% down, and fix the real estate portion for 20 years. The Small Business Administration guide to financing and managing a business explains what these programs expect from a borrower and where to apply.
- Seller financing on an existing site. A seller carry-back note often runs 5 to 10 years at 5% to 8%, with 20% to 30% down. It is fast and flexible. It also leaves you dependent on a seller whose disclosures you should verify rather than trust.
- Equity partners. A real estate syndication under Regulation D usually pays no fixed monthly payment, which is what a lease-up needs. The price is control and a share of the upside. Typical promote structures give the sponsor 20% to 30% of profits after a preferred return of 6% to 8%.
- Equipment financing. A lender such as Balboa Capital or Stearns Bank can finance a gate system or a fleet vehicle for 3 to 7 years. It is not sensible for anything embedded in the structure. Rates typically run 6% to 12%, depending on credit and collateral.
If the site is designed to be built in phases, say so to every lender before terms are drawn. Phasing changes the covenant tests and the drawdown schedule, and the physical triggers for starting a later phase are described in when to add more units.
Ask each lender what it does in the month absorption comes in behind plan. That month is far more likely than default, and it is where the relationship is tested.
Separate the spending that keeps units rentable
Not all equipment is the same class of decision. A failed latch takes a unit out of service and stops revenue on that door. An office chair does not.
Rank the list by whether a failure costs a rented unit, and fund the top first. A gate controller, access software, and door latches sit above lobby furniture. The full inventory sits in what the building needs installed, and carry that ranking into the maintenance budget after opening.
What the tax and record side needs from day one
Register the entity and settle the tax identity before the first rental. Set up the books so construction spending, capitalized soft costs, and operating expense stay separable from the start. Reconstructing that split later is expensive and often approximate.
The Internal Revenue Service page on starting a business and its record requirements covers federal registration. Tell your accountant about the project before the first invoice arrives, not after.
Accessibility spending belongs in hard cost at design stage. The Department of Justice small business guide to the Americans with Disabilities Act describes obligations ordinary at drawing stage, disruptive once concrete cures.
That is why the parking count and the office route are drawn before anything is poured.
What the funding package has to contain
The document a lender reads is not a story but a set of assumptions with sources attached. The assumption set is described in what belongs in the plan a lender reads.
At minimum it carries the uses schedule above, the absorption assumption and its evidence, and the carry calculation at two absorption rates. It also carries the guarantor's personal financial position. Add a sources and uses table that ties every dollar of the loan, equity, and seller note to a line in the budget.
Common questions
How much contingency is enough?
Nobody can give you a percentage that holds for your site. List the three uses lines with the widest range of possible outcomes: sitework, interior build, and carry. Size the contingency against those three rather than against the total. Typical practice is 5% to 10% of hard cost, and 10% to 15% on a conversion.
Is it cheaper to convert an existing building?
Sometimes, and the savings are rarely where people expect. Conversions save shell cost and lose it again on column spacing, floor loading, ceiling height, and fire separation. Get a structural opinion before the conversion appears in a budget. A conversion contingency often runs 10% to 15%.
Should the carry be borrowed or funded with equity?
Borrowing the carry means paying debt service on the money that pays debt service. That is not automatically wrong. It should be a deliberate choice with the compounding written out, not a gap plugged at closing.
What is the most common budgeting error?
Funding construction to completion and nothing beyond it. The building is finished on the day the money runs out, and the site then has to fill itself from cash flow it does not yet have.
