Accessory Dwelling Units (ADus)

Your yard is an asset, Let's build on it.

An ADU turns unused yard into a second income and builds real equity in the property you already own. It can also give an adult children or aging parent a place of their own. Bercini Construction designs and builds ADUs across Grand Rapids, start to finish.

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Why build and ADU

Independence, close by

Give an adult child their own private and comfortable space, steps away instead of across town.

A second income

Lease it long-term and put a new stream of rent to work on the mortgage, tuition, or your next investment property.

Care, without a facility bill

An ADU lets a parent age in place on your property, independent but never far.

Equity that compounds

Added square footage, added rental income, added resale value - one of the few home investements that keeps paying you back.

Grand Rapids Zoning

The city made this easier

Since Grand Rapids updated its housing ordinance, ADUs have become one of the most practical additions a homeowner can make. We handle the zoning and the permit - you just decide what to build.

No owner-occupancy requirement - rent it out, house family, or both.
Up to 1,000 SF permitted in every residential zone in the city.
No additional off-street parking required.

Building Right

Efficient to run. Built for every stage of life.

Every Bercini ADU is built to the same standard: tight, efficient, and safe to live in for decades.

Energy Efficient

R-20 Exterior walls insulation and R-38 attic insulation
High-performance, low-E windows rated U-0.32.
Insulated, weather-sealed exterior doors.
Whole-envelope air sealing, blower-door tested.
High-efficiency heat pump heating and cooling.
ENERGY START appliances.
LED lighting.

Age-in-Place Ready

Zero-step entry.
36" wide doorways and hallways throughout.
Wall blocking behind bathroom walls, ready for grab bars whenever they're needed.
Wheelchair-accessible bathroom with curbless, walk-in shower entry.
Lever-style door and faucet handles- easy to grip, no twisting required.
Rocker light switches set low enough to reach from a chair.