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Flagship guide · Leasing

The 27 questions to ask before you sign.

UFThe Shop Manual editorial team 18 min readUpdated August 2026Free checklist inside

A commercial lease deserves careful questions and, where needed, advice from your own professional. These twenty-seven questions follow the order of a leasing conversation. Bring them to our buildings or a competitor’s, and use them to prepare for your own lease review.

“A fair lease survives its own arithmetic being read out loud.”

§1The money questions

Everything in a lease eventually becomes a number. These first questions force the numbers into the open while you still have leverage, which is to say, before you've signed.

01What is the all-in monthly price, rent plus everything?

Ask for base rent, CAM (common area maintenance, your share of park upkeep), taxes, insurance, and any admin fee added together, as one figure, in writing. If the answer is a rate per square foot and a shrug, the building has a math problem it wants you to discover in month three.

Why it mattersA $1,700 bay with $340 of pass-throughs is a $2,040 bay. Budget on the all-in number or don’t budget at all.

02Is this lease gross, modified gross, or triple-net, and what does that word mean in dollars here?

The label matters less than the arithmetic. Make the landlord translate the structure into last year’s actual dollars for the exact space you’re taking. A fair landlord has that number; an unfair one has an estimate that rounds down.

Why it mattersNNN (triple net: you pay your share of taxes, insurance and upkeep on top of base rent) is not a trap by itself, an undisclosed NNN is.

03What did CAM actually cost last year, per square foot, in this building?

Not the projection: the actual. Then ask what’s in it: snow, landscaping, lot maintenance, management fee. Ask which lines the landlord controls and whether those are capped.

Why it mattersThe most credible number a landlord can hand you is last year’s reconciliation. Silence here is an answer too.

04How does the rent escalate, and what will I pay in year three, in dollars?

Fixed-percentage escalators can be shown as arithmetic today. CPI-linked ones can’t. Ask for year three in dollars on paper; if the lease can’t produce that number, you are signing a variable you can’t price.

Why it mattersA 4% annual bump turns $2,000 into $2,163 by year three. Know it now, not then.

05What amperage, phase, and voltage does my specific bay carry, at the panel, not the property?

The building brochure says “heavy power.” Your welder cares about the panel in your bay: amps, single- or three-phase, 208 or 480. Have your electrician read the panel schedule before you sign, not after your first tripped main.

Why it mattersThree-phase 200A runs most one-crew shops. A second lift, a compressor, and a paint booth is a different conversation.

06Where does the floor drain go, and is it legal for what I do?

A drain to sanitary sewer with an oil-water separator is one thing; a drain to daylight is another; no drain at all changes your fit-out. If you wash, spray, or wrench, this single question decides whether the bay works.

Why it mattersAuto uses live and die on this answer. Get it in writing from the landlord, then verify with the town.

07Exactly which uses are permitted in this bay, by the zoning AND by the lease?

Two documents can each say no. The town’s zoning table decides what the parcel allows; the lease’s use clause decides what the landlord allows. Get your specific use named in the lease, “general industrial” has evicted a lot of gyms.

Why it mattersIf the leasing agent says “should be fine,” the correct response is “show me.”

08What insurance minimums does the lease require, and what will that policy actually cost me?

Most small-bay leases want $1M/$2M general liability with the landlord as additional insured; some add property and umbrella. Price the certificate before you sign, for most trades it’s $900 to $3,000 a year, but spray finishing and fitness change the quote fast.

Why it mattersThe lease is signed the day the certificate arrives. Slow insurance holds more move-ins than slow paperwork.

09What is the personal guarantee, full term, or capped and burning off?

Many landlords ask you to guarantee the lease personally. The fair version is capped, a fixed number of months that burns down as you pay on time. The unfair version follows you for five years after your LLC is gone. Ask which one this is, out loud.

Why it mattersThis clause outlives the business. It deserves ten minutes of attention, not a signature reflex.

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§2The building questions

The physical building decides what your business can become inside it, and almost none of it is in the listing. Questions 10 through 19 walk the slab, the heights, the doors, the neighbors, and the water.

10How thick is the slab, what PSI, and where do the control joints run?

If you will ever anchor a lift, a rack row, or a machine, the slab is your foundation and the manufacturer’s manual is the law: most call for 4 to 6 inches at 3,000+ PSI with anchors kept clear of joints. A landlord who can show a slab spec, or will let you core-test, is a landlord who has answered this before.

Why it mattersAnchoring six inches from a control joint is the most common install failure in the trade. Know the joints before you plan the floor.

11What is the clear height under the LOWEST obstruction, not to the roof deck?

Ducts, sprinkler mains, door tracks, and light fixtures all hang below the number in the listing. Measure to the lowest thing in the space you’ll actually use, the lift zone, the rack row, the rig line, and get that number, not the marketing number.

Why it mattersA “16-foot building” with pipes at 12 feet is a 12-foot building. Every trade with height needs has been burned by this once.

12What are the door dimensions, and what do I lose to the track at the opening?

Measure width AND height of the clear opening, then check your tallest loaded vehicle against it, racks, ladders, and light bars included. Door track and header steel almost always shave inches off the stated size exactly where you need them.

Why it mattersThe box truck that fits the spec sheet but not the doorway is a story every park has. Don’t be its next chapter.

13Who are the neighbors, and what do they do at 6 a.m.?

Walk the aisle and read the doors. A compressor neighbor is fine for a fabricator and miserable for a recording studio; a 5 a.m. loading crew is ambience to a contractor and a complaint waiting to happen for others. Ask the landlord how they place uses, a good one has an answer.

Why it mattersYou’re not just renting a bay. You’re joining whatever the aisle already is.

14Where does water go, roof, lot, and the apron in a hard rain?

Ask the roof’s age and last inspection, then look at the lot: where does snowmelt pond, does the apron slope toward your door, and what happened in the last hundred-year storm (they come more often now). Water damage to your inventory is your policy’s problem, and your problem first.

Why it mattersOne puddle at the threshold in March tells you more than any brochure.

15What does heating this bay actually cost in January, from a real bill?

Northern bays live and die by this line. Ask for a similar partner’s actual winter utility numbers, what the heat source is, and what insulation the walls and door really carry. “Utilities vary” is not an answer; a January number is.

Why it mattersThe cheapest rent in town can be the most expensive space in the county by February.

16Can I ventilate, and am I ALLOWED to penetrate the wall or roof to do it?

Fume extraction, makeup air, dust collection, and a paint-adjacent exhaust all need penetrations, which need landlord approval and sometimes permits. Get the yes (or the no) in writing before you price equipment that assumes it.

Why it mattersA fabricator without approved extraction is one visit from an ugly conversation. Ask first; the answer shapes the whole fit-out.

17How many parking spaces are actually MINE, and what are the rules on trailers and overnight vehicles?

Get an assigned count in the lease, plus the policy on trailers, equipment, customer vehicles, and anything parked overnight. Shared-lot fights are the most common neighbor-vs-neighbor friction in every park in America, and they’re all preventable on paper.

Why it mattersThe lot is part of the lease whether the lease mentions it or not. Better that it mentions it.

18What utilities and internet actually serve THIS unit, today, not theoretically?

Which carriers reach the building, is the water line live, is gas plumbed, and are the meters separate or shared? “Available at the street” and “in the unit” are different answers with a trench between them.

Why it mattersEvery “we can always add that later” is a change order wearing a smile.

19What security actually exists, and what happened the last time something went wrong?

Gates, cameras, lighting, and access logs are specs; the real question is the story. Ask when the last break-in or theft happened and what changed after. A landlord who answers that honestly will answer everything else honestly too.

Why it mattersTool theft is a business-ending event for a one-truck trade. The gate is not a detail.

§3The paper questions

The lease itself, in plain English. None of these take a law degree; all of them take ten minutes you'll be glad you spent, ideally before the tour, certainly before the signature.

20If I sell my business, does the lease go with it, and on what terms?

Assignment and subletting clauses decide whether your lease is an asset or a trap when you exit. Look for “consent not unreasonably withheld” language, and ask what the landlord’s actual process and fees are for an assignment.

Why it mattersYour lease outlives your plans. Make sure it can follow the business, not strangle the sale.

21What is the holdover rate if my timing slips a month?

Most leases charge 150 to 200% of rent if you stay past the end date without a renewal. Life slips; build-outs run long; closings move. Know the number and the notice mechanics before you need the grace.

Why it mattersA two-week slip at double rent funds a very bad month. Read this clause while it’s still boring.

22Is there a relocation clause, can the landlord move me to another unit?

Some leases let the landlord relocate you within the property with notice. For a business with anchored equipment, published addresses, and customer habits, that clause deserves either deletion or tight limits (costs paid, comparable space, real notice).

Why it mattersYou’re building a location. A relocation clause makes it provisional. Negotiate it before it matters.

23When is my renewal notice due, and does this lease auto-renew or auto-expire?

Find the exact date you must give notice to renew (or to leave) and put it in three calendars. Notice windows of 6 to 9 months before expiry are common, and missing one either locks you in or throws you out, both at the worst time.

Why it mattersMore leases are lost to a missed date than to a bad landlord. This is the cheapest question on the list.

24Who fixes what: specifically the HVAC, the door, and the slab?

Maintenance splits vary wildly: many small-bay leases hand HVAC repair (and sometimes replacement) to the partner. Get the split as a table, roof, structure, slab, doors, HVAC, plumbing, glass, and ask what each has cost lately.

Why it mattersA $9,000 rooftop unit failing in year two teaches this lesson expensively. The table costs nothing.

25What counts as default, what is the cure period, and what are the late fees?

Know the grace period on rent, the fee schedule, and what non-monetary defaults exist (insurance lapse, unapproved alterations, use violations). Fair leases give real cure windows; harsh ones make a bad month into a crisis.

Why it mattersYou’re not planning to be late. You’re planning for the month the customer who owes you is.

26What happens to my lease if the building sells?

Your lease should bind successors, and mostly does, but ask about termination-on-sale or redevelopment clauses, and whether your renewal options survive a new owner. The trades’ horror stories almost all start with “then the building sold.”

Why it mattersYou can’t control who buys the building. You can control what the paper says when they do.

27What condition must I return the bay in, and what does “normal wear” mean here?

Surrender clauses decide whether your improvements stay, your racking holes are “damage,” and your deposit returns. Do a documented walkthrough with photos at move-IN, agree what stays at move-OUT, and get the standard in writing.

Why it mattersThe move-out argument is won on move-in day, with a camera.

Where this guide is wrong for you

This checklist helps you prepare questions; it does not replace advice about your particular lease. Ask a qualified attorney to review obligations you do not understand, especially personal guarantees, permitted use, renewal rights and build-out responsibilities.