Pueblo ADU rules
✓ Verified against code · August 19, 2026
Current rules under PMC 17-4-16 (Pueblo Municipal Code), adopted by Ordinance 11022, in effect since August 25, 2025. Until August 25, 2025, new ADUs were prohibited in Pueblo entirely — only units 'established' before February 1968 were recognized. The city obtained a six-month compliance extension from the state, then adopted rules that track the statute nearly verbatim. Everything written about Pueblo ADUs before late August 2025 describes a ban.
Common questions, answered from the code
Can I build an ADU in Pueblo now?
Yes — since August 25, 2025. Before that, new ADUs were prohibited citywide (only pre-1968 units were recognized), so anything you read dated earlier describes a ban that no longer exists. One ADU per lot, up to 800 sq ft, by administrative approval.
PMC 17-4-16 (Ord 11022) · Permalink
What design rules apply to a Pueblo detached ADU?
The strictest design menu in the region: colors and materials must complement the house, and the unit must incorporate at least 7 of 17 enumerated design features. Budget design time accordingly.
PMC 17-4-16(c) · Permalink
Do I need parking for a Pueblo ADU?
Usually not. A new space is required only in the statute's narrow case — no existing usable off-street space, a zone that required parking as of January 1, 2024, and a block where on-street parking is prohibited. Otherwise you just designate an existing surplus space.
PMC 17-4-16(b)(10)–(11) · Permalink
Was Pueblo late complying with the state ADU law?
Technically the ordinance passed about eight weeks after the June 30, 2025 deadline — but Pueblo had obtained a six-month compliance extension from the state, so it wasn't a scofflaw. The adopted rules track the statute nearly word for word.
Ord 11022; TA-22-03 staff packet · Permalink
The rules at a glance
| ADUs allowed per lot | One ADU — attached, detached, or integrated — accessory to a one-family residence, in any zone district (including PUDs) where one-family residences are allowed. Not permitted on lots with duplexes, townhouses, multi-family, mobile homes, or RVs.PMC 17-4-16(a), (b)(6) |
| Maximum size | The lesser of 100% of the residence's gross floor area or 800 sq ft.PMC 17-4-16(b)(7) |
| Detached ADU height | A detached ADU may not exceed the height of the residence on the lot; attached ADUs use the zone maximum (35 ft in most residential districts).PMC 17-4-16(b)(8) |
| Detached ADU setbacks | Rear: 5 ft for ADUs up to 16 ft tall; taller units meet the zone rear setback. Front and side per zone standards.PMC 17-4-16(b)(9) |
| Off-street parking | One space only if all three statutory conditions apply (no existing usable off-street space; the zone required parking as of January 1, 2024; the block prohibits on-street parking) — otherwise an existing surplus space is simply designated to the ADU. Statute-verbatim.PMC 17-4-16(b)(10)–(11) |
| Owner-occupancy | Application-time only: proof of occupancy (a utility or medical bill, first-class mail, or bank statement within 12 months) when applying. No ongoing requirement.PMC 17-4-16(b)(1) |
| Lot coverage / floor area | ADUs are exempt from the accessory-building chapter entirely — including its 15%-of-lot / 1,500 sq ft caps. The zone's general lot coverage (50% in most residential districts) still applies.PMC 17-4-23(a)(7); 17-4-2(d) |
| Permit path & timeline | Administrative approval plus a building permit via the regional building department. The state reviewed the draft for statutory compliance before adoption. No published timeline.PMC 17-4-16; TA-22-03 staff packet |
Worth knowing
- The distinctive Pueblo requirement: a detached ADU must be color- and material-complementary to the house AND incorporate at least 7 of 17 listed design features — the heaviest design menu in our corpus.
- No separate sale or subdivision of the ADU from the residence.
- Manufactured homes qualify as ADUs on an engineered permanent foundation; mobile homes and RVs don't.
- The legacy pre-1968 'established ADU' category survives as its own classification.
- Between the state deadline (June 30, 2025) and adoption, Pueblo operated under a state-granted extension — a nuance most coverage misses.
On our watchlist
No ADU-specific fee schedule located; fees unverified.
Check your parcel
The rules above are citywide — what you can build depends on your lot’s zone, size, and setbacks. Look yours up on the official viewers:
Primary sources
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Not legal advice. Every fact above cites the code section it comes from — check the cite, or ask your city’s planning department to confirm your specific lot. Spotted an error or a new ordinance? See about to reach us; corrections are logged in the changelog.