What Impacts Commercial Tenant Improvement Costs?

The key factors that drive budget on dental, veterinary, office, restaurant, and retail buildouts.

Tenant improvement costs vary widely between projects, and two seemingly similar buildouts in the same building can carry budgets that differ by a factor of two or three. Understanding what drives those differences helps business owners, brokers, landlords, and lenders set realistic expectations before design work begins.

The factors below are not a pricing guide. They are the categories that most often determine whether a commercial buildout comes in at $40 per square foot or $140 per square foot. A contractor walkthrough of the actual space is the starting point for a real number.

Existing Conditions

The condition of the base building shell has a large effect on tenant improvement cost. A vanilla shell with a dropped ceiling grid, finished concrete, and basic electrical stubbed to the panel costs less to build out than a gray shell where the contractor must run all mechanical, electrical, and plumbing from base building systems. An occupied space being remodeled carries additional costs for selective demolition, protection of active areas, phased scheduling, and material handling.

Existing HVAC, plumbing, and electrical systems also matter. Building systems near end of life, systems without capacity for the planned use, or systems designed for a prior tenant's specific program may require upgrades before the tenant buildout can be completed. These conditions are discovered during preconstruction, not after work starts.

Scope of Work

The number and type of spaces being constructed is the single largest driver of overall project cost. A simple office buildout with open work areas, a conference room, and a break room costs substantially less per square foot than a dental office with eight treatment rooms, sterilization, X-ray, mechanical chases, and a central compressor room. The programming document is the starting point for understanding scope, and the scope document determines the budget range before design begins.

Changes to scope after design is complete are a primary source of budget overruns. Cost increases from scope changes made during construction are larger than cost increases from the same changes made before framing starts.

Mechanical, Electrical, and Plumbing Needs

MEP work is the category that most often separates specialty buildouts from general office buildouts in terms of cost per square foot. Dental offices require vacuum, compressed air, nitrous systems, and additional electrical capacity for imaging equipment. Veterinary clinics require plumbing in almost every room, high-volume air exchange systems, specialized floor drains, and dedicated utility connections for medical equipment. Restaurant construction requires commercial hood systems, high-capacity gas lines, grease interceptors, and commercial-grade plumbing throughout the kitchen.

The amount of MEP work required in a given space is determined by the specific program, the existing building infrastructure, and the equipment the tenant is bringing in. These items need to be understood before a budget can be set.

Permitting and Schedule

Permitting timelines affect project cost in two ways. Longer permitting timelines push occupancy back, which can affect lease start dates, equipment delivery windows, and business opening timelines. In some jurisdictions, construction cost escalation during an extended permit period can affect material pricing. Permit complexity also correlates with design cost: more complex permits require more detailed drawings and more review cycles.

Schedule compression affects cost. A buildout that needs to be completed faster than a typical schedule requires additional labor, shift work, or accelerated procurement that carries a cost premium. Planning a realistic schedule before lease signing is one of the ways preconstruction work protects the budget.

Finish Level and Specialty Equipment

Finish selections range from standard commercial grade to hospitality-level, and the difference in cost is real. A restaurant or retail buildout where brand standards require specific materials, fixtures, and custom millwork costs more per square foot than a standard office with commodity finishes. Healthcare environments require finishes rated for clinical use that may not look dramatically different but cost more than general commercial equivalents.

Specialty equipment that requires contractor coordination adds cost through equipment procurement coordination, utility rough-ins timed to delivery schedules, installation coordination with equipment vendors, and in some cases commissioning support. This is common in dental, veterinary, and medical buildouts where the equipment is a central part of the project program.

There is no meaningful average that applies across building types, markets, scopes, and finish levels. Published ranges for commercial tenant improvements in the Pacific Northwest typically span from $50 to $200 per square foot or more depending on the specific factors. A dental or veterinary buildout in the same building as a simple office buildout will cost significantly more per square foot because of the specialized MEP and equipment requirements. Rubicon provides project-specific budgets based on the scope, site conditions, and program.

Before the lease is signed is the ideal timing. A contractor walkthrough of prospective spaces can identify conditions that affect real buildout cost, which in turn affects the improvement allowance negotiation, the realistic schedule, and the total cost of occupancy in that space. Waiting until after the lease is signed eliminates the ability to use that information as a negotiating point with the landlord.

Landlords commonly provide a tenant improvement allowance, which is a dollar-per-square-foot contribution toward the buildout cost negotiated as part of the lease terms. The allowance may or may not cover the full cost of the buildout depending on the scope of work and the landlord's willingness to negotiate. When buildout cost exceeds the TI allowance, the tenant covers the difference. Rubicon can provide early cost estimates that help tenants and brokers evaluate whether a given allowance is realistic for their program.

Yes. Two tenants occupying the same square footage in the same building can have dramatically different buildout costs based entirely on what each business requires from the space. A standard office buildout in a vanilla shell may cost $60 to $80 per square foot. A dental practice in the same space requiring eight treatment rooms, specialized utility systems, imaging rooms, and full MEP infrastructure may cost $150 per square foot or more. The program drives the cost, not the square footage alone.