How big can a Lakewood ADU be?
✓ Verified against code · August 19, 2026
1,400 sq ft of gross floor area — the most generous flat cap on the Front Range (Thornton's formula, the greater of 1,000 sq ft or 50% of the home's floor area, can run higher on a large house), 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 It predates the repealed rewrite, so the repeal didn't touch it.
Citation: §17.4.3.1.A.6.a (O-2024-12)
How current is this?
Lakewood’s ADU rules run under Zoning Ordinance Title 17, §17.4.3.1 (pre-rewrite code, restored by voter repeal) (O-2024-12 (the fall-2025 rewrite was repealed by voters April 7, 2026)). 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operative for exactly twelve days (January 1–12, 2026) before certified referendum petitions suspended it, and voters repealed all four rewrite ordinances by ~62.5% at an April 7, 2026 special election.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— amended for state ADU compliance in June 2024 (O-2024-12) — governs today, and the city charter bars re-adopting the repealed ordinances until roughly October 2026. Most guides written in late 2025 or early 2026 describe the repealed code. We verified this answer against primary sources on August 19, 2026, and every change we catch is logged in the changelog.
More Lakewood ADU questions
- Which zoning code is actually in force in Lakewood right now?
- How tall can a detached Lakewood ADU be?
- How fast is a Lakewood ADU approval?
- Do I have to live on the property?
All Lakewood ADU rules → · Compare Colorado cities →
Not legal advice — lot-specific overlays can change the answer for your parcel. The citation above points at the governing code section; check it, or ask the city to confirm.