Colorado ADU Permits

Pueblo ADU Permits & Requirements

Fees $6,000–$18,000 · 6–10 weeks timeline · 500–750 sf

Quick Answer

Pueblo ADUs: $135K–$255K

Permits: $6K–$18K · Updated April 2026

Permit Fees Breakdown

Fee Type	Cost	Notes
Building Permit	$700–$3,500	Valuation-based, Southern Colorado Building Dept
Plan Review	$200–$900	Plus City of Pueblo administrative ADU review
Water & Sewer Taps	$3,000–$9,000	Board of Water Works / Pueblo West Metro — verify
Utility Connections	$500–$2,500	Electric, gas, and trenching for rear-yard runs

Permit Process Timeline

Administrative ADU & Zone Verification

1–2 weeks

Confirm the lot allows a one-family residence and is not a designated historic property

Plan & Soils Preparation

2–4 weeks

Architectural plans plus a geotechnical soils report for the expansive clay

Building Permit Review

3–5 weeks

Southern Colorado Building Department review and routing-sheet agency sign-offs

Construction

4–7 months

Build on the engineered foundation with required inspections

Final Inspection & CO

1–2 weeks

Final inspection and Certificate of Occupancy

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Zoning & Requirements

Typical ADU Size

500–750 sf

Height Limit

~24 ft (verify)

Rear Setback

≥ 5 ft (HB24-1152)

Parking

No new space (typical)

Key Regulations

HB24-1152 (effective June 30, 2025) requires one ADU by-right (administrative) on single-family lots — Pueblo's biggest ADU change
Pueblo's code allows one ADU accessory to a one-family residence in any zone that permits one-family homes, including PUDs
HB24-1152 bars a blanket owner-occupancy mandate; a city may condition owner-occupancy only for short-term-rental licensing
Architectural compatibility with the primary residence is expected (matching roof pitch and exterior color)
A geotechnical soils report is expected on expansive-clay lots and drives the foundation design
HB24-1152 remains contested by some Colorado home-rule cities — verify the current process with City of Pueblo Planning

Climate & Construction Notes

Pueblo's bentonite-rich Pierre Shale and weathered claystone are highly expansive, so a geotechnical soils report and an engineered foundation (drilled piers or over-excavation) are the norm, not the exception. The high-desert, semi-arid climate brings wide temperature swings, wind, and freeze-depth footing requirements, while low humidity and intense sun call for durable exterior finishes.

Frequently Asked Questions

How long does it take to get an ADU permit in Pueblo?

Because HB24-1152 makes most ADUs an administrative approval, a clean submittal typically clears zoning and building review in 6–10 weeks. Total project time including design and construction is usually 7–11 months.

What types of ADUs are allowed in Pueblo?

Pueblo allows detached, attached, above-garage, and garage-conversion ADUs. Units generally fall in the 500–750 sf band; confirm the current size cap with the City of Pueblo Department of Planning and Community Development.

Do I need to live on the property to build an ADU in Pueblo?

Under HB24-1152 Pueblo cannot impose a blanket owner-occupancy requirement, though it may condition owner-occupancy on short-term-rental licensing. Verify the current rule with Pueblo's planning department before you plan a rental.

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