Lakewood ADU rules

✓ Verified against code · August 19, 2026

Current rules under Zoning Ordinance Title 17, §17.4.3.1 (pre-rewrite code, restored by voter repeal), adopted by O-2024-12 (the fall-2025 rewrite was repealed by voters April 7, 2026), in effect since July 10, 2024. Lakewood is the cautionary tale of the Front Range: the city replaced its entire zoning code in fall 2025, the new code was operative for exactly twelve days (January 1–12, 2026) before certified referendum petitions suspended it, and voters repealed all four rewrite ordinances by ~62.5% at an April 7, 2026 special election. The pre-rewrite Title 17 — amended for state ADU compliance in June 2024 (O-2024-12) — governs today, and the city charter bars re-adopting the repealed ordinances until roughly October 2026. Most guides written in late 2025 or early 2026 describe the repealed code.

Common questions, answered from the code

Which zoning code is actually in force in Lakewood right now?

The pre-rewrite Title 17, as amended in June 2024. The fall-2025 replacement code was operative only January 1–12, 2026 — certified referendum petitions suspended it under the charter — and voters repealed all four rewrite ordinances by about 62.5% on April 7, 2026. Guides describing 'Lakewood's new zoning code' are describing repealed law.

Charter §13.2(d); April 7, 2026 special election results · Permalink

How big can a Lakewood ADU be?

1,400 sq ft of gross floor area — the most generous cap on the Front Range, adopted in June 2024 (up from 700 sq ft with a one-bedroom limit). It predates the repealed rewrite, so the repeal didn't touch it.

§17.4.3.1.A.6.a (O-2024-12) · Permalink

How tall can a detached Lakewood ADU be?

The code disagrees with itself — 30 ft in one article, 20 ft (30 over a garage) in another — and its own tie-breaker rule says the more restrictive number governs, so plan on 20 ft (30 over a garage) and get the city's determination in writing before designing taller.

§17.4.3.1.A.5.b; Table 17.5.1; §17.1.6.2.A · Permalink

How fast is a Lakewood ADU approval?

The zoning step is unusually fast on paper: an administrative review with no hearing, and the director must decide within 15 days of a complete application. Building-permit review time is separate and unpublished.

§17.2.12.2.B.2 · Permalink

Do I have to live on the property?

Only at permit issuance — the permit goes to an owner-occupant or their designee. The old ongoing-occupancy rule and its recorded covenant were deleted in the June 2024 state-compliance amendment.

§17.4.3.1.A.4 · Permalink

The rules at a glance

ADUs allowed per lot	One ADU per lot, accessory to a single-family home — attached, detached, or over a garage. The old 9,000 sq ft minimum-lot rule was deleted in 2024. Allowed as a limited use in all R districts (and inside the permitted use's building in several mixed/commercial districts); prohibited in the industrial districts.§17.4.3.1.A.1, .3, .8–.11; Table 17.4.1
Maximum size	1,400 sq ft of gross floor area — raised from 700 sq ft (with a one-bedroom cap, also deleted) by the June 2024 amendment. This generous cap predates the repealed rewrite and survives it.§17.4.3.1.A.6.a (O-2024-12)Previously: 700 sq ft with a one-bedroom cap — changed by O-2024-12, adopted June 10, 2024
Detached ADU height	The code conflicts with itself: Article 4 says 30 ft, Article 5's table says 20 ft (30 ft over a detached garage). The code's own rule that the more restrictive provision governs makes the effective answer 20 ft, or 30 ft over a garage — but get the city's reading in writing.§17.4.3.1.A.5.b vs. Table 17.5.1; §17.1.6.2.A
Detached ADU setbacks	Another internal wrinkle: the ADU section points at primary-structure standards (front 25 / side 15-10-5 / rear 15 ft in R districts), while the accessory-structure table gives 10 ft side/rear in the large-lot districts and 5 ft elsewhere, behind the front edge of the house. Large structures (any wall over 32 ft long or 12 ft high) take primary setbacks. The ADU can't sit in front of the house.§17.4.3.1.A.5; Table 17.5.1; §17.5.5.1
Off-street parking	Conditional: parking applies only if on-street parking is 'legally or practically unavailable' (arterial/collector frontage, streets under 28 ft, or posted no-parking) — then one space per unit. Since June 30, 2025, the state statute further limits when a new space can be demanded; treat the statute as controlling where more permissive.§17.4.3.1.A.6.e; Table 17.8.1; C.R.S. 29-35-403(3)
Owner-occupancy	Permit-issuance only: an ADU permit issues to an owner-occupant or their designee — no ongoing occupancy requirement and no recorded covenant (the 2024 amendment deleted both). Consistent with the state statute's application-time allowance.§17.4.3.1.A.4 (O-2024-12); C.R.S. 29-35-403(2)(b)
Lot coverage / floor area	Accessory structures combined: at most 50% of the rear/side/non-primary-front yard area and 10% of the total lot; zone minimum open space runs 25–65% by district.§17.5.5.1.B.1; Table 17.5.1
Permit path & timeline	Administrative Review of Supplemental Standards (no hearing, no public input) — and the director must decide within 15 days of a complete application, one of the fastest codified clocks anywhere — plus residential design standards and the building permit.§17.4.3.1.A.7; §17.2.12.2.B.2

Worth knowing

The repealed rewrite would have kept the 1,400 sq ft cap — the headline number was never actually at stake; the fight was over the rest of the code.
The 'similar in appearance' design rule (materials, color, roof pitch matching the house) sits in unresolved tension with the state statute's design-standard limits.
Waivers of ADU standards are possible only through the major-waiver process before the Planning Commission.
The city charter bars council from re-adopting the repealed ordinances for six months (until about October 7, 2026) — expect a new zoning effort after that.
Whatever was permitted under the new code during its twelve days in force (January 1–12, 2026) sits in undocumented territory.

On our watchlist

The charter's six-month re-adoption bar lifts around October 7, 2026 — a new zoning effort is likely after that; this page's framework could change again.

O-2024-12's exact effective date is pinned to ~July 2024 by charter math; the ordinance PDF itself is bot-blocked (manual download would confirm).

The internal height and setback contradictions await a city determination; we publish both readings rather than pick one.

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.