Residential Addition / Remodel Building Permit in Silverthorne, Colorado

Silverthorne requires a residential addition / remodel building permit for: Residential Additions: site plan with topographical info, building height table, water/sewer service line details, construction management plan, erosion control/grading plan, landscape plan, tree conservation plan, exterior lighting location, architectural plans, elevations with USGS ties, stamped structural drawings, foundation and framing plans, soils report; Residential Remodels: overall floor plans showing existing and proposed scope of work, scope of work list, stamped structural plans by a licensed Colorado engineer (lighter submittal than additions/new construction); Summit Fire & EMS fire mitigation permit required for additions (not listed as required for remodels specifically); Plan Review: Town of Silverthorne Planning and Engineering Departments review per Town Code; Summit County Building Department conducts Building Code plan review; Water and sewer tap fees (EQRs) required for additions that add bedrooms/bathrooms. If your project isn't listed, confirm with Town of Silverthorne Community Development Department, Building Division at 970-262-7360 before starting work.

In Silverthorne, the published Building Permit Fee (same valuation table as new construction) is: $65.00 minimum, scaling per the valuation tiers in the Town's fee table. Additional published fees: Plan Review Fee — 65% of the Building Permit Fee; Impact Fee (additions only) — Based on added square footage; Water and Sewer Tap Fees (EQRs) — Per Town Code Sec. 3-2-1. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Silverthorne does not publish a plan-review timeline for this permit. Contact Town of Silverthorne Community Development Department, Building Division at 970-262-7360 for current turnaround.

You'll need: Building Permit Application (SmartGov Portal); Scope of Work list; Stamped Structural Plans. See the required-documents checklist on this page for details on each.

Silverthorne requires 3 inspection(s) for a residential addition / remodel building permit, in order: Foundation (additions with new footings), Rough Frame / Rough Trades, Final Inspection. Schedule each through Town of Silverthorne Community Development Department, Building Division (970-262-7360).

Apply through Town of Silverthorne Community Development Department, Building Division at 601 Center Circle, P.O. Box 1309, Silverthorne, CO 80498. Phone: 970-262-7360, email: buildinginfo@silverthorne.org. Office hours: Monday through Friday, 8 a.m. to 5 p.m.; building permit submittal appointments required (per Community Development FAQ). Town Hall main line (970) 262-7300; Community Development/Building direct line (970) 262-7360. Electrical permits are handled separately by the Summit County Building Department, 0037 Peak One Drive / 37 S.C.R. 1005, Frisco, CO, (970) 668-3170.. Official information: https://www.silverthorne.org/town-government/community-development/building-copy.

Silverthorne, Colorado has adopted: 2018 International Building Code (IBC), with Town of Silverthorne local amendments — Town of Silverthorne Building Codes & Amendments page, https://www.silverthorne.org/town-government/community-development/building-copy/building-codes-construction-resources; 2018 International Fire Code (IFC), with Town of Silverthorne local amendments — same source; 2023 NFPA 70 National Electrical Code (NEC), adopted by Town Ordinance 2023-10 — the Town's own Building Codes & Amendments page attributes this specific adoption to the Summit County Building Department ('Ordinance 2023-10 2023 NFPA70 National Electrical Code Adoption - from the Summit County Building Department'), consistent with Summit County issuing and governing all electrical permits Town-wide; Underlying building-code plan review and inspection for all permit types is performed by the Summit County Building Department 'based on the Building Code most recently adopted by the Town' — Town of Silverthorne Plan Review page, https://www.silverthorne.org/town-government/community-development/building-copy/resubmittals-and-revisions; IRC Section 321.1 as locally amended (temporary/permanent address numbering requirements) and IBC Sections 105.4, 105.6, 109.1, 109.5, 109.7, 104.10, 104.11, and 3402.1 as locally amended (administrative provisions: permit suspension/revocation, inspection access, reinspection fees, code-modification authority, alternate materials/methods, and additions/alterations conforming to new-construction code) — Town of Silverthorne Building Codes & Construction Resources page, General Requirements / Administrative Requirements sections. Local amendments apply — see the Silverthorne overview page for the full list.

No. Residential Remodels require only overall floor plans, a scope of work list, and stamped structural plans where applicable — a lighter package than the full topographical/landscape/tree-conservation package required for new construction and additions.