The buy vs. lease dental office space decision should start with three questions: how long the practice expects to use the premises, how much cash each option requires, and what obligations remain if the plan changes. Compare equivalent usable space over the same period. Then evaluate control, repair exposure, financing, and exit choices alongside the numbers.
Buying can create a property asset and greater control, while leasing can preserve initial cash and offer a different route to future relocation. Neither result is automatic. The actual building, agreements, financing, and practice plan determine the tradeoffs.
Compare premises that can support the same practice
Complete the trade-area and location review before choosing a property simply because it is for sale. Compare patient access, usable treatment capacity, staffing practicality, opening timing, and the work required to make each candidate usable.
A purchased shell and an equipped leased suite are not comparable at asking price alone. Obtain a professional test fit and condition assessment for both. Identify utility upgrades, accessibility work, permits, dental construction, and installation dependencies. The SBA's location guidance says physical premises must conform to local zoning whether the business buys or rents. SBA business-location guidance.
Record each unresolved condition beside its cost estimate. If the leading purchase candidate cannot support the intended practice, ownership advantages elsewhere in the model do not fix that mismatch.
Put opening cash on one page
The table below uses hypothetical figures for two suitable premises. Both require $180,000 of practice-funded improvements, with no landlord reimbursement assumed. These are occupancy amounts only; clinical equipment, payroll, operating supplies, and the wider practice working-capital reserve are excluded from both columns.
| Opening commitment | Buy | Lease |
|---|---|---|
| Down payment on a hypothetical $1 million property | $200,000 | — |
| Security deposit | — | $15,000 |
| Closing, professional, and review costs | $30,000 | $5,000 |
| Practice-funded improvements | $180,000 | $180,000 |
| Initial property contingency set aside | $40,000 | $20,000 |
| Cash required or reserved | $450,000 | $220,000 |
Buying uses or reserves $230,000 more in this example. That difference is not a statement of total economic cost: a down payment creates an ownership interest, a deposit may be refundable, and reserved cash remains cash until spent.
Show the practice's remaining unrestricted cash after either commitment. If a landlord offers an improvement allowance, record what qualifies and when reimbursement occurs. An allowance paid after construction does not fund the contractor's earlier deposits.
Obtain actual financing terms before replacing the example. SBA 504 financing can support eligible buildings and land, but it cannot fund working capital or speculative rental real estate. Confirm project eligibility and the separate opening-cash requirement with the lender and Certified Development Company. SBA 504 program guidance.
Separate carrying cash from investment return
Build the monthly occupancy budget from the documents. For ownership, include total debt payments, property taxes, insurance, association charges where applicable, service costs, repairs, and planned capital reserves. For a lease, include base rent, scheduled increases, operating charges, tenant repair duties, and any financed improvements.
Continue the hypothetical example:
| Monthly requirement | Buy | Lease |
|---|---|---|
| Debt payment or base rent | $6,500 | $6,000 |
| Taxes, insurance, or quoted additional rent | $1,200 | $1,800 |
| Routine maintenance budget | $600 | $300 |
| Capital reserve contribution | $400 | $0 |
| Cash paid or set aside | $8,700 | $8,100 |
The ownership budget requires $600 more per month, or $7,200 across twelve unchanged months. The reserve contribution is a cash allocation rather than a current repair expense. Loan principal also differs from an expense, even though it must be paid.
For an investment comparison, have the accountant model the full holding period, debt balance, selling costs, potential property value, taxes, and the alternative use of the additional initial cash. Use cautious property-value scenarios rather than assuming appreciation. Keep the operational liquidity view beside that analysis.
Tax treatment needs its own review. IRS Publication 946 explains depreciation rules and states that land cannot be depreciated. Have the adviser distinguish land, building, improvements, financing, and lease costs under the actual transaction; a sales presentation's promised deduction is not a completed analysis. IRS depreciation guidance.
Identify what control costs in each arrangement
Ownership may allow more direct decisions about repairs and alterations, subject to applicable approvals, financing terms, and any association restrictions. It also gives the owner responsibility for organizing that work and funding it. Ask who manages the building when the dentist is treating patients.
A lease allocates responsibilities through its terms. Determine which repairs remain with the tenant and what happens when the landlord's work disrupts the practice. Use the dental office lease checklist for the clause review, including renewal, assignment, improvements, and surrender.
For a purchase, investigate title, access rights, physical condition, and environmental history with the relevant professionals. EPA explains that All Appropriate Inquiries evaluates environmental conditions and is relevant to certain liability protections. Ask counsel and the environmental professional what investigation and continuing duties apply; a property inspection alone does not settle that question. EPA guidance on All Appropriate Inquiries.
Test three different endings
The practice stays longer than expected. Model lease renewal terms and notice windows against the ownership loan's maturity, possible refinancing, and major repairs. A stable current payment does not establish stable future occupancy spending.
The practice needs to move earlier. For the lease, estimate remaining obligations, assignment or subletting conditions, restoration, and moving overlap. For ownership, estimate time to sell or lease the property, carrying costs during vacancy, debt payoff, and transaction costs. Avoid treating an assumed tenant as guaranteed income.
The owner sells the practice. Consider whether the buyer would purchase the property, become a tenant, or require another location. Retaining real estate creates an ongoing landlord role. If a separate property entity leases to the practice, have advisers review both agreements and avoid counting internal rent twice in the combined owner analysis.
Use the practice financing comparison to reconcile debt and property deadlines. Finish with a decision memo stating the intended occupancy period, remaining cash, full monthly requirements, downside exposure, and the facts that would change the choice. Commit after the premises, contracts, and financing support the same plan.
