Do I have to live on the property in Castle Rock?
✓ Verified against code · August 20, 2026
You have to live there when you apply, but not afterwards. The code ties eligibility to the owner of an existing primary dwelling and the application includes an Affidavit of Residency attesting that you currently reside on the property. There is no ongoing obligation and no annual re-certification — which is what HB24-1152 permits. This is a change: the original 2017 ordinance imposed a genuinely ongoing occupancy requirement until Ordinance 2025-023 replaced it in July 2025.
Citation: CRMC §17.61.050(C)(2)
How current is this?
Castle Rock’s ADU rules run under CRMC Ch. 17.61 (Accessory Dwelling Units) (Ordinance 2025-023). Castle Rock is bound by HB24-1152 through DRCOG. Ordinance 2025-023 took effect July 1, 2025, one day after the statute's June 30 deadline — a timing note rather than evidence of anything, since the deadline governed filing rather than the effective date of local code. That ordinance made a real change: the original 2017 ADU ordinance imposed a genuinely ongoing occupancy obligation, and the current code checks residency only once, when you apply. We verified this answer against primary sources on August 20, 2026, and every change we catch is logged in the changelog.
More Castle Rock ADU questions
- How big can a Castle Rock ADU be?
- Do I need parking for a Castle Rock ADU?
- Can I build an ADU on a Castle Rock townhome lot?
- Does my Castle Rock ADU have to match my house?
All Castle Rock 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.