Egress Windows & Window Wells in Lone Tree, CO
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Like-for-like window replacements are exempt in Lone Tree, but cutting a new egress opening or enlarging a basement window changes the opening size, so it needs a permit.
Lone Tree homeowners finishing basements generally need code-compliant egress for basement bedrooms (IRC R310: summary).
Permits in Lone Tree
Permits are issued by the City of Lone Tree Building Division (source). The city's page says replacing windows, doors or siding "does not require a permit unless you are changing the size of the opening. Like for like size replacements are exempt from permitting." Cutting a new egress opening or enlarging an existing basement window changes the opening size, so it needs a permit. Applications are accepted only through the city's online portal, and plan review fees are due when you apply (same page). County: Douglas.
Permit fees
Ask the City of Lone Tree Building Division for current permit and plan review fees. Plan review fees are due when you apply.
Services in Lone Tree
Egress windows · Window wells · Covers · Basement egress
Generally yes. Lone Tree homeowners finishing basements generally need code-compliant egress for basement bedrooms under IRC R310. The City of Lone Tree Building Division. Not for a like-for-like size replacement. The city says replacing windows, doors or siding does not require a permit unless you are changing the size of the opening. Yes. Cutting a new egress opening or enlarging an existing basement window changes the opening size, so it needs a permit. Applications are accepted only through the city's online portal, and plan review fees are due when you apply.Frequently asked questions
Does a basement bedroom in Lone Tree need an egress window?
Who issues egress window permits in Lone Tree?
Does a window replacement need a permit in Lone Tree?
Does a new egress window need a permit in Lone Tree?
How do I apply in Lone Tree?