Modular Buildings

A modular building is built in sections at a factory, trucked to your site, and set on a foundation. You get real office, classroom, or clinic space in weeks, where a conventional build takes months. Schools use them when enrollment outruns the campus. Contractors use them on long jobs. Hospitals, churches, and city departments use them as swing space during a renovation, and plenty of them end up staying for good.

RentalHawk shows you what these buildings cost to lease or buy, then gets you quotes from suppliers that deliver to your area.

Types of Modular Buildings

Single-Section Offices

One section, roughly 500 to 900 square feet, with two or three rooms and usually a restroom. This is the step up from a jobsite trailer: better finishes, and often set on a foundation and skirted instead of left on wheels. Leases typically run $500 to $1,100 per month.

Modular Classrooms

The standard classroom is two sections joined on site, about 24 by 40 feet, built to education codes with the door hardware, windows, and ventilation schools need. Districts lease them one at a time or by the dozen. Expect $900 to $2,000 per month for each classroom.

Double-Section Offices

Two sections give you 1,400 to 2,000 square feet with open work areas, private offices, a conference room, and restrooms. A common pick for sales centers, administrative offices, and project headquarters. Leases run $1,200 to $2,800 per month.

Multi-Section Office Complexes

Four or more sections combine into 3,000 square feet and up, laid out like any other office building. Once the skirting, steps, and landscaping are in, most visitors cannot tell it arrived on trucks. Plan on $3,000 to $8,000 per month, depending on size and finish.

Clinics, Labs, and Specialty Buildings

Exam rooms, labs, restroom and shower buildings, guard booths, and kitchens need plumbing, special electrical, and code work that general office space does not. That pushes the price up, typically to $3,500 to $9,000 per month for a clinic or lab.

Leasing vs. Buying

Lease when the need has an end date: a two-year construction job, a school renovation, a temporary branch. Buy when you expect to use the space for more than three to five years, because by then the lease payments have usually passed the purchase price.

Purchase prices vary widely. A used single-section office can sell for $20,000 to $45,000. New modular office and classroom space generally costs $80 to $160 per square foot before site work, and permanent modular construction with custom finishes can reach $250 per square foot. Ask suppliers to quote both ways. Many also offer lease-to-own terms.

What Affects the Price

• Size and layout: square footage is the biggest driver, and every interior wall, restroom, and door adds to it.
• New or used: a refurbished building from a supplier's fleet costs much less than one built to order, and it is available sooner.
• Lease length: a 36-month term has a lower monthly rate than a 12-month term on the same building.
• Delivery and installation: trucking, the crane or roll-off set, joining the sections, and anchoring are one-time charges. Budget $3,000 to $15,000 or more for a multi-section building.
• Foundation and site work: grading, piers or a slab, and utility connections are usually your responsibility, or your general contractor's.
• Steps, ramps, and decks: accessible ramps are required for most public and commercial uses, and they are priced separately.
• Removal: at the end of a lease you pay to have the building taken apart and hauled away. Get that number in writing up front.

Before You Request Quotes

You will get better numbers, and get them faster, if you know four things: what the building is for, about how many people or rooms it has to hold, how long you need it, and when you need it on site. A photo or sketch of where it will sit also helps. Suppliers ask about access for the trucks, and tight sites cost more to set.

Most buildings need a permit. Requirements depend on your city or county, how long the building stays, and how it will be used, so call your local building department early. Suppliers can tell you which drawings and approvals they provide.