Truth Over Optimism
Feasibility comes before design. If the lot cannot hold the home, that is the answer — before drawings, before a contract.
Feasibility first
Dane County's ADU Specialists
About Boundless Tiny Homes: Madison ADU & Small-Format Builder.
Stewardship of Property, Family, and Trust.
We design, permit, and build ADUs and small-format homes in Madison and across Dane County — start to Certificate of Occupancy. One firm, one contract, one point of contact.
A detached ADU, an attached addition, an ADU over a new garage, or a small-format community on a larger parcel. ADUs are the specialty. Small-format housing is that same work at neighborhood scale.
Start a Free Feasibility Check →#1
ADU Design-Build Firm in Dane County
15+
Years of Industry Experience
ADU
Specialists, Plus Small-Format Homes
CO
Every Project to Certificate of Occupancy
01 · Why we care
Not a shed. Not a box. Not a maybe.
For too long, families were handed bad choices: buy a glorified backyard shed, hire a general contractor who treats a small home like a side job, or watch an aging parent drain a lifetime of savings on a $12,000 to $15,000 a month care facility. We exist to build the better way — permanent, architecturally crafted small homes that keep family close and preserve hard-earned equity, with an honest answer from day one.
A permanent single-level home, like the B-436, starts at $145K. That is roughly one year of those facility fees. The difference is that the outlay stays in the property, and the person you love is thirty steps away.
02 · What we stand on
Four Commitments Every Homeowner Can Hold Us To
Human Warmth in Every Square Foot
Residential architecture in a small footprint. Daylight, real rooms, and finishes a person can live with. Never a shed.
Architectural craft
Local Accountability
One Madison team designs, permits, and builds. We track the rules in 21 Dane County municipalities ourselves.
Radical ownership
Permanent Craftsmanship
Frost-wall foundations, the Wisconsin dwelling code, and a lifetime roof, built for this climate. Starting at $145K.
Enduring permanence
03 · What we build
Two Scales of Living.
Individual backyard ADUs
Twenty pre-engineered plans, 360–1,250 sq ft, starting at $145K. Single-level studios and family homes, two-story 1-bedrooms with living below and sleeping above, and a 1-bedroom or 2-bedroom above a new garage. Custom-built on your lot. See the plans.
Small-format housing developments
Cottage courts under Madison Ordinance 90557, pocket neighborhoods, and infill clusters. Shared infrastructure on those multi-unit sites is a municipal conversation. An individual backyard ADU is a private single-lot build. Small-format housing.
The Boundless System
Turnkey ADU — Start to Certificate of Occupancy
We take care of everything, from start to finish. With a Boundless ADU, there are no hidden fees or bait-and-switch tactics. We believe in transparency.
01
Turnkey Construction
We begin with the design phase, crafting plans and blueprints tailored to your property and goals. We handle permitting, construction management, and final inspection — one firm, one contract, one point of contact from start to CO.
02
High-Quality Materials
Every Boundless ADU comes standard with premium materials — quartz countertops, luxury vinyl flooring, slow-close cabinetry, lifetime composition shingle roofs, and appliance packages available. No allowances, no surprises at the end.
03
Full Transparency
We don't provide estimates without walking you through every line item. You see the full number before you sign anything. Our contracts are fixed-price, and our process is documented so you know exactly where your project stands at every phase.
Local Knowledge
Can I Build an ADU in My Town?
While Madison's laws have made it much easier to add an ADU, each municipality operates with its own set of requirements. We know the zoning codes across Dane County — setbacks, size limits, owner-occupancy rules — in detail.
Select your municipality to see current ADU regulations, or start with a free feasibility check to get a definitive answer about your specific property.
Ready to Start?
Find out what's buildable on your property.
The feasibility check is free. We review your address, zoning, and lot — and give you a clear picture of what's possible.
Get a Free Feasibility Check →