Superior allows a detached accessory dwelling unit by right on most single-family lots. Here is exactly what the code permits — size, setbacks, parking, and owner-occupancy — each point cited to the adopted regulations.
Every figure below is drawn from Superior's adopted ADU regulations. The exact setbacks for your parcel depend on its zoning — the planner reads them off your lot.
Permitted by right
Yes
Approved through the normal building-permit process — no discretionary hearing.
Maximum size
Up to 750 sq ft
Detached ADU ≤ the greater of 750 sf or 50% of the principal dwelling's floor area, and in no event larger than the principal dwelling. Town of Superior ADU Code (Size).
Owner-occupancy
Confirm
Superior's published ADU Code requires the property owner to reside on the property on the date the ADU application is filed (this does NOT apply to an ADU built on a vacant lot). Colorado HB24-1152 prohibits owner-occupancy mandates for subject jurisdictions, so this at-application clause may be superseded — confirm the current requirement with the Town.
Off-street parking
None required
No off-street parking required for the ADU. Town of Superior ADU Code (Parking): 'Off-street parking is not required.'
Setbacks
Your zone's accessory setbacks
A detached ADU follows this city's accessory-structure setbacks, which vary by zoning district. Trace your lot in the planner and we'll show the exact side, rear, and front lines on your parcel.
Source
Town of Superior ADU Code (superiorcolorado.gov — Planning & Building › Zoning Regulations › ADU Code): ADU = permitted use on all lots that allow a single- or two-unit dwelling (incl. Planned Development). DOLA Multilaw Applicability = 'Required' (HB24-1152 Subject Jurisdiction); DOLA-certified ADU Supportive Jurisdiction; Colorado HB24-1152 (eff. June 30, 2025).
This is a plain-language summary for planning, not a legal determination. Codes are amended; confirm the current requirements with Superior and a design professional before you rely on them.
A subject jurisdiction must allow at least one ADU by right (administrative — no discretionary review or public hearing) on any lot where a single-unit detached dwelling is an allowed use, and may not impose owner-occupancy mandates, ADU-specific minimum lot size, parking minimums (narrow exceptions only), or design standards stricter than the primary dwelling. It took effect June 30, 2025. That is why cities like Superior now approve a backyard home administratively — and why owner-occupancy and parking mandates are largely gone.
We keep cited ADU rules for every city below. Switch to yours.
Draw your lot and house on the satellite map, drop an ADU, and see the setbacks and a budget range on your own property — in about a minute.
Keep exploring
ADU rules by city
Cited, city-by-city ADU rules across the Front Range.
Rental income potential
Real numbers on what ADUs earn.
ADUs for family
Aging parents, multigenerational living, childcare.
How to finance an ADU
HELOC, construction loans, and CHFA options.
Process & timeline
What to expect from contract to move-in.
Floor plans & pricing
Three sizes, three tiers, two styles.
About Addwell
Who we are and how we build.