Almost everyone underestimates this, and the underestimate is what causes the financial pressure that follows.
Ask someone planning a startup how long it will take and you often hear six months. Ask someone who has finished one and the number is usually considerably longer. The gap between those two numbers is where budgets break, because a runway planned for six months has to cover twelve.
Choosing a market, analyzing demographics and competition, and developing the business plan you will need for financing. This stage moves at whatever pace you push it, but rushing it is the wrong economy since the location decision is the hardest one to undo.
Assembling documentation, approaching lenders, and getting to a commitment. Dental-specific lenders generally move faster than conventional banks, and SBA paths generally take longest. This stage frequently overlaps with site selection, since lenders want to know where.
Finding a space, negotiating terms, and executing the lease. Lease negotiation is slower than people expect, particularly when tenant improvement allowances are involved. Do not sign a lease with a commencement date that assumes construction starts immediately, because it will not.
Architectural plans, then submission for permits. This is the stage that most reliably runs long, and it is largely outside your control. Municipal review timelines vary enormously, and dental offices involve plumbing and sometimes radiographic shielding review that a standard office buildout does not. Build real slack here.
The actual buildout. A contractor experienced with dental offices is worth the premium, because the coordination of plumbing, electrical, and equipment rough-in is specific and mistakes are expensive to correct later. Weather, inspections, and material availability all introduce variability.
Equipment goes in near the end, after the space is ready. Order lead times need to be planned backward from this date, and lead times on some equipment are long. This is also where used equipment has an advantage, since it is available now rather than on a manufacturing schedule.
Several things have to happen alongside construction, and forgetting them causes delays independent of the building:
Credentialing in particular is worth starting as early as your circumstances allow, because it is slow, largely outside your control, and directly affects revenue.
Every month between commitment and opening is a month of costs without revenue: rent may start before you open, loan payments may begin, and your own expenses continue. The realistic timeline, not the optimistic one, is what your working capital has to cover. Our guide on startup financing covers how to size that.
If you are weighing this against buying an existing practice, our acquisition track covers that alternative, which has a very different timeline profile.
Timelines vary substantially by market, municipality, lender, and project scope. This is general guidance for planning purposes, not a schedule you should rely on. Consult professionals familiar with your specific market.