The most expensive decisions in a restaurant project are made before a single drawing exists. They are made the day the lease is signed, because the lease fixes the two things no budget can change afterward: the building and the address. A restaurant space walkthrough with a designer, done before that signature, takes about thirty minutes and answers one question: can this room hold the restaurant you intend to run, and at what rough cost. New York's own Small Business Services puts it plainly in its restaurant starter guide: before you sign, review the location with a licensed professional and a lawyer to confirm restaurant use is allowed and the space is right for the business.
Most owners do the opposite. They fall for a room, sign, and then call a designer to make the numbers work. Sometimes the numbers do not work. This piece is the checklist we walk in that half hour, and what each line item costs when it goes wrong.
The vent path is the first question we ask
Not the light, not the storefront. The duct.
Every commercial kitchen in the city needs a hood. The SBS guide is unambiguous: all commercial cooking, on gas or electric stoves, fryers, or ovens, requires a range hood and a fire suppression system, with plans filed with the Fire Department. A hood needs a duct, and the duct needs a legal path to the exterior, usually up through the building to the roof. In a one-story taxpayer that path is short. In a six-story residential building with apartments above the kitchen, it may not exist at any price the landlord will tolerate.
This is the single most common walkthrough failure, and it is invisible in a listing photo. So we stand in the likely kitchen zone and trace the vertical: is there an existing shaft, a rear yard route, a prior tenant's duct still in place. The money at stake is real. One commercial brokerage's 2026 cost breakdown puts a single-line Type I hood system, with suppression, ductwork, exhaust fans, and makeup air, at $30,000 to $50,000 installed for a modest kitchen, and $60,000 to $120,000 or more for a high-volume one. Those are Atlanta figures; New York does not come in under them.
Grease handling rides along with the hood question. Commercial kitchens must capture grease from sinks, fryers, and floor drains, and the grease trap and backflow preventer may need Department of Environmental Protection approval. A small indoor trap is a few thousand dollars; a large in-ground interceptor, cut into the slab, runs five figures. Whether your floor can take one is a walkthrough observation, not a design decision.
Ceiling height, measured after the ceiling drops
The 2022 NYC Building Code sets the floor: occupiable spaces and corridors need a finished ceiling height of not less than 7 feet 6 inches, measured to the underside of the ceiling or its beams.
The number that matters on a walkthrough is not the number on the listing. Sprinkler mains, hood ductwork, HVAC trunks, and lighting all live between the slab and the finished ceiling, and together they can take twelve to twenty inches out of whatever you measured with a laser at the open house. A raw 9-foot slab can become a 7-foot-8 dining room, legal but oppressive. We measure at the beams, note every pipe already crossing the space, and subtract before anyone gets attached to the room. Ceiling height also drives acoustics, lighting strategy, and how generous the room feels at full occupancy; it is the one dimension you cannot buy back later.
Gas, power, and the meter you do not have yet
A stove with no gas behind it is furniture. On the walkthrough we find the gas service, the electrical service size, and the risers, then ask the question that decides months of schedule: does this space need new or upgraded utility service.
Con Edison's own guidance for business customers says that if a service installation requires excavation, you should allow up to 90 days from the time the site is inspected, and that a new meter takes roughly ten days after all deposits, applications, and the final inspection clear. Ninety days is a full quarter of rent on a room that cannot cook. A space with adequate existing service skips that clock entirely, which is why two otherwise identical storefronts can differ by a season in time-to-open. The permit clocks stack on top of this one; we mapped those separately in the NYC build-out permits and timeline piece.
Second-generation spaces are a discount with conditions
A former restaurant looks like the safe choice. The hood is there, the trap is there, the gas is sized. The SBS guide endorses the instinct with a caveat that carries the whole sentence: taking over a former restaurant saves time and construction cost only if that restaurant passed its inspections and was in compliance. Inheriting a non-compliant hood means paying to demolish it before you pay to replace it. So a restaurant space walkthrough of a second-generation room starts with paperwork: the prior tenant's inspection history, before any of the equipment gets credited toward your budget.
The spread between the two paths is the largest number in the project. The same 2026 brokerage breakdown puts second-generation work at $50 to $150 per square foot for a modest refresh, and $100 to $250 for a significant remodel, against $200 to $450 per square foot for a raw full-service build-out. A construction firm's 2026 figures land in the same band from the other side: $250 to $400 per square foot for full-service casual dining, with soft costs adding 12 to 20 percent on top. On 2,000 square feet, the gap between a compliant second-generation space and a raw one can exceed $400,000. Where the design fee sits inside those numbers is its own topic; we broke it down in what restaurant interior design costs.
A lease is a commitment to a building's constraints. The walkthrough is where you learn what they are while walking away is still free.
The map around the address
Some walkthrough findings are not in the room at all. If the concept includes a bar, the State Liquor Authority's siting rules attach to the address itself. The 200-foot rule is absolute: no on-premises license may be issued within 200 feet of a building used exclusively as a school or place of worship, on the same street, with no hearing and no exception. The 500-foot law is conditional: three or more existing on-premises licenses within 500 feet triggers a hearing and a public-interest finding before a fourth can issue.
Capacity has its own threshold. Seventy-five or more people indoors makes the room a place of assembly and requires a Place of Assembly Certificate of Operation, with the heavier filings and annual inspections that follow. Whether your business plan needs 74 seats or 90 is worth knowing before you commit to the square footage, not after.
How ORÉA runs a restaurant space walkthrough
ORÉA COLLECTIVE is a two-founder studio, and both of us walk every candidate space; that is how we work on everything, from first site visit through installation. On a walkthrough we carry a laser measure and a checklist that looks like this article: vent path, slab-to-beam height, gas and electrical service, riser and drain locations, window orientation and what the light does at service hours, and the block itself. The same discipline of settling constraints before drawings, then producing full drawing sets before any trade is engaged, is what carried Sesilya from a Park Slope storefront to an open dining room without a mid-construction surprise.
Our contact page says we prefer conversations that start before the lease, and this is why. Everything a designer can do for you after signing is optimization. The one thing we can do before signing is tell you to keep looking, and that advice has no price tag once the ink is dry.
A restaurant space walkthrough costs half an hour. The problems it catches cost between $30,000 and a quarter of rent on a dark room. If you are weighing a space in New York right now, start with a conversation.