New Residential Construction Building Permit (SFR Attached and Detached) in Silverthorne, Colorado

Silverthorne requires a new residential construction building permit (sfr attached and detached) for: Site plan with topographical information; building height table per Town Code definition of building height; Water and sewer service line details shown on site plans and mechanical plans; Construction management plan; erosion control and grading plan; Landscape plan (Town Code Section 4-6-14) including revegetation information and designated snow storage area(s); Tree conservation plan (Town Code Article VIII, Environmental Guidelines); Exterior lighting location on architectural elevations, plus exterior lighting spec sheet; Architectural plans (floor plans, elevations, materials); elevations with USGS ties for height calculations; Structural drawings stamped by a Colorado-licensed architect/engineer, including design loads, code versions, and project type; foundation plans; framing plans; Soils report; HOA approval if applicable; warranty deed if applicable for new ownership; Summit Fire & EMS fire mitigation permit required for all new construction; life-safety/sprinkler permit required for Eagles Nest Golf Course Filings 1-5 or homes over 6,000 SF; Plan Review: Town of Silverthorne Planning, Engineering, and Water and Sewer departments review per Town Code; Summit County Building Department conducts the Building Code plan review. 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 — valuation $1 to $500 is: $65.00. Additional published fees: Building Permit Fee — valuation $100,001 to $500,000 — $1,008.25 for the first $100,000, plus $6.73 per additional $1,000 or fraction thereof; Building Permit Fee — valuation $1,000,001 and up — $6,370.25 for the first $1,000,000, plus $3.90 per additional $1,000 or fraction thereof; Plan Review Fee — 65% of the Building Permit Fee; Excise Tax — $2.00 per square foot (living space, unfinished space, and garage); Stormwater System Development Charge — $0.55 per square foot of impermeable surface; Impact Fee — Based on building square footage (exact rate not published on reviewed pages); Water and Sewer Tap Fees (EQRs) and Water Meter Fee — Per Town Code Sec. 3-2-1 use classification schedule. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Neither the Town nor Summit County publishes a numeric review timeline. Both state review time depends on department workload and the completeness/quality of the submitted plans.

You'll need: Building Permit Application (SmartGov Portal); Construction Drawings and Structural Plans; Construction Management Plan. Depending on your project, Silverthorne may also ask for: Soils Report. See the required-documents checklist on this page for details on each.

Silverthorne requires 4 inspection(s) for a new residential construction building permit (sfr attached and detached), in order: Foundation / Footing, Foundation Drain / Damp-Proofing / Waterproofing / Foundation Insulation, Framing, Final Inspection (Town Engineering, Water/Sewer, Planning). 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.

The Town of Silverthorne's own Planning, Engineering, and Water and Sewer Departments review for Town Code compliance, but the Summit County Building Department performs the actual Building Code plan review and all inspections, per an intergovernmental arrangement described on the Town's own Plan Review page.