Fitting Out a Commercial Space for the First Time
You signed a lease on your first dedicated commercial space. That is a real milestone. It is also the beginning of a process that works differently than most first-time tenants expect.
Building out a commercial space is not the same process as renovating a house. The permit requirements are different, the team is different, and the cost structure is different.
First generation versus second generation space
The condition of the space at turnover affects what the buildout actually involves.
First generation space has never been occupied. The landlord delivers it unfinished. The exact condition varies, but there are typically no partitions, no finished ceilings, and limited or no distribution of mechanical and electrical systems. Everything gets built from scratch. You get exactly the layout you need, and you pay for all of it – sometimes with an allowance from the landlord.
Second generation space has had a prior tenant. Some buildout already exists: partitions, ceiling grid, HVAC distribution, electrical panels. You may be able to work with what is there, which can reduce cost. The tradeoff is that the existing layout may not match what your business needs, and you will likely want to change it.
Most small businesses signing a first commercial lease are taking over second generation space. That matters for what comes next.
What triggers a permitted buildout
Under the International Existing Building Code, which Massachusetts has adopted, alterations to existing commercial spaces fall into levels based on scope.
Level 1 covers cosmetic work: paint, flooring, replacing finishes in kind. No stamped drawings required.
Level 2 is triggered by any reconfiguration of space, any addition or removal of a door or window, or any extension of a building system: modifying electrical, extending ductwork, adding or relocating plumbing. If you are moving partitions, adding offices, changing a door location, or running new electrical to new locations, you are in Level 2. That requires a building permit and stamped drawings from a licensed architect.
Most tenants who are actually fitting out a space and not just repainting, are triggering Level 2. If you are taking second generation space and changing the layout at all, you are there.
What the permit package requires
A commercial permit submission requires stamped architectural drawings and, depending on scope, stamped drawings from mechanical, electrical, plumbing, and fire protection engineers (MEP/FP). The architectural drawings cover layout, egress, life safety, occupancy, and accessibility. The MEP/FP engineers address their respective systems and produce the energy code compliance documentation Massachusetts requires.
The architect is the licensed professional of record on the project. They produce the architectural drawings, scope and coordinate the engineering disciplines, assemble the coordinated permit drawing and affidavit package, and respond to any plan review comments. The building department does not accept the permit application without the coordinated permit package.
This is the part that surprises first-time commercial tenants. On a residential project, a licensed contractor can pull the building permit and the trades typically pull their own permits independently. Commercial work does not operate that way. The trades still pull separate permits, but those permits have to align with the approved permit set. Without that set, nothing moves.
What happens during construction
The architect’s role does not end at permit issuance.
During construction, the architect performs site observations and provides construction administration: reviewing submittals, responding to contractor questions, issuing clarifications when field conditions require it. In Massachusetts, construction control is a formal requirement that involves regular documented site observation. That documentation protects the tenant. It is also what the building inspector expects to see at the end of the project.
What this costs
Design and engineering fees on a commercial tenant fit-out are a predictable line item. Architectural fees typically run 8 to 12 percent of construction cost. MEP engineering adds another 3 to 5 percent. Combined with permitting fees, total soft costs generally fall between 10 and 15 percent of the construction budget. On smaller projects, that percentage tends to run toward the higher end — there is a baseline scope of work regardless of square footage.
Furniture and fixtures are not part of construction cost and are not included in those figures. They are a separate budget line that first-time tenants frequently underestimate.
Build the full picture into your budget before you sign a lease. The fees are not optional, and they are not the variable you want to discover after you have committed to the space.
