Studio vs. One Bedroom vs. Two Bedroom

Bedroom count is really a decision about who lives there — and it shapes cost, rent, and flexibility more than any finish you'll pick.

Studio (roughly 300–450 SF). One open room plus a bathroom. Cheapest to build, easiest to fit on tight lots, and rents surprisingly well in strong urban markets to solo tenants. The catch: the tenant pool is narrowest, and studios feel small fast. Great as an office/guest hybrid; fine as a rental in dense areas.

One bedroom (roughly 450–700 SF). The workhorse. A separated bedroom widens the tenant pool to couples and makes the unit feel like a real home. Usually the best rent-per-construction-dollar of the three, and the most flexible: solo tenants, couples, a parent, a home office with a guest room. When in doubt, this is the default.

Two bedroom (roughly 700–1,200 SF). Now families and roommates can live there, and total rent is highest. But cost rises with size, and rent per square foot falls — two tenants sharing a 2BR pay less per foot than one tenant in a 1BR. Choose it when your goal demands it: housing a family member plus an office, maximizing total rent on a big lot, or multigenerational living.

Match the count to the goal

• Max rental efficiency: 1 bedroom, almost every time.
• Housing parents: 1 bedroom, single-story, accessible — a second bedroom only if a caregiver is realistic.
• Adult child or small family: 2 bedroom.
• Office/flex now, rental later: studio or 1BR depending on lot.

One more nuance for later modules: bedroom count interacts with size caps. Under state law, cities must allow at least 850 SF for a studio/1BR ADU and at least 1,000 SF for a unit with more bedrooms — so going from one bedroom to two can actually unlock extra allowed square footage.