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Commercial Alteration / Tenant Improvement Permit in Castle Pines, Colorado

Required for commercial tenant finish and alteration work. Listed as 'Commercial Alteration' on the City's Building Permit Application; categorized under the Plan Review Permit track with the City's longer 10-business-day commercial review timeline.

Verified 2026-08-02 · Source

When you need this permit

  • Listed as 'Commercial Alteration' on the Building Permit Application (distinct checkbox from 'New Commercial')
  • Plan Review Permit track: two identical scaled drawing sets required
  • All contractors must hold applicable City of Castle Pines contractor licenses Contractor
  • No Castle-Pines-specific tenant-improvement submittal checklist is published; the general Plan Review Permit submittal standard applies (site plan/floor plan/construction details as applicable to scope). The City's live Building Design Guides and Resources page lists guides for Additions, Residential Basement Finish, Pole Barns, Accessory Structures, Residential Swimming Pools, Uncovered Decks and Porches, Re-Roofing, Asbestos Testing and Abatement, and Residential Fire Sprinkler Systems only — no Commercial Alteration or Tenant Improvement guide is published. This is a confirmed absence on the current page, not an inference.

Required documents

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Fee schedule

Building Permit Fee — $1.00 to $500.00
2026 Fee Schedule (effective document dated May 2026), Building section, 'Building Permit Fees' table. Show full citation2026 Fee Schedule (effective document dated May 2026), Building section, 'Building Permit Fees' table. This valuation-tier table is a single unified schedule that is NOT split by residential vs. commercial — the City's own fee-schedule PDF shows only one 'Building Permit Fees' table under the BUILDING section heading, immediately followed by a separately-labeled 'Electrical Permit Fees' line ('As outlined by State Statute'), which IS explicitly the only building-related fee split by residential/commercial in this schedule. Commercial tenant-improvement valuation fees therefore follow the same table as residential, not a different one. Independently corroborated by the City's Building Permit Application form (PDF), whose 'For Office Use Only' fee-assessment block (Building Permit Fee / Plan Review Fee / Zoning Fee / Castle Pines Tax / Douglas County Tax) is a single shared set of fields used regardless of which Permit Type checkbox is selected, including 'Commercial Alteration.'
$42.00
Building Permit Fee — $501.00 to $2,000.002026 Fee Schedule, Building Permit Fees table
$42.00 for the first $500.00 plus $5.45 for each additional $100.00 or fraction thereof, up to and including $2,000.00
Building Permit Fee — $2,001.00 to $25,000.002026 Fee Schedule, Building Permit Fees table
$123.75 for the first $2,000.00 plus $25.00 for each additional $1,000.00 or fraction thereof, up to and including $25,000.00
Building Permit Fee — $25,001.00 to $50,000.002026 Fee Schedule, Building Permit Fees table
$698.75 for the first $25,000.00 plus $18.00 for each additional $1,000.00 or fraction thereof, up to and including $50,000.00
Building Permit Fee — $50,001.00 to $100,000.002026 Fee Schedule, Building Permit Fees table
$1,148.75 for the first $50,000.00 plus $12.45 for each additional $1,000.00 or fraction thereof, up to and including $100,000.00
Building Permit Fee — $100,001.00 to $500,000.00
2026 Fee Schedule, Building Permit Fees table, page 5. Show full citation2026 Fee Schedule, Building Permit Fees table, page 5. The published row closes with “up to and including $100,000.00”, repeating the ceiling of the tier below it; every other tier closes at its own ceiling, so the $500,000.00 bound recorded here reads the table as the City evidently intends. Confirm with the City before relying on it for a project near the tier boundary.
$1,771.25 for the first $100,000.00 plus $9.95 for each additional $1,000.00 or fraction thereof, up to and including $500,000.00
Building Permit Fee — $500,001.00 to $1,000,000.002026 Fee Schedule, Building Permit Fees table
$5,751.25 for the first $500,000.00 plus $8.45 for each additional $1,000.00 or fraction thereof, up to and including $1,000,000.00
Building Permit Fee — $1,000,001.00 and up2026 Fee Schedule, Building Permit Fees table
$9,976.25 for the first $1,000,000.00 plus $6.50 for each additional $1,000.00 or fraction thereof
Plan Review Fee2026 Fee Schedule, Other Building Fees table
65% of total building permit fee
Zoning FeePer the City's current 2026 Fee Schedule PDF (Community Development table): 'Zoning Review for Building Permit -- $63.00.' This supersedes an earlier $60.00 figure.
$63.00 flat
Douglas County Use TaxBuilding Department FAQs, “What does a permit cost?”
1% of 50% of total project value
Castle Pines Use TaxBuilding Department FAQs, “What does a permit cost?”
3.75% of 50% of total project value

Review timeline

Plan reviewCastle Pines’s published plan-review target
1–10 business days

How long did your Commercial Alteration / Tenant Improvement Permit permit actually take in Castle Pines?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Rough Trade

    Electrical/mechanical/plumbing rough-in prior to concealment

  2. 2

    Final Inspection

    After tenant improvement work is completed

See the full Castle Pines inspection guide — scheduling & re-inspection fees →

Tips

  • Commercial plan review in Castle Pines is published at up to 10 business days, double the 5-day residential timeline — plan tenant-improvement schedules accordingly.

Frequently asked questions

Castle Pines requires a commercial alteration / tenant improvement permit for: Listed as 'Commercial Alteration' on the Building Permit Application (distinct checkbox from 'New Commercial'); Plan Review Permit track: two identical scaled drawing sets required; All contractors must hold applicable City of Castle Pines contractor licenses; No Castle-Pines-specific tenant-improvement submittal checklist is published; the general Plan Review Permit submittal standard applies (site plan/floor plan/construction details as applicable to scope). The City's live Building Design Guides and Resources page lists guides for Additions, Residential Basement Finish, Pole Barns, Accessory Structures, Residential Swimming Pools, Uncovered Decks and Porches, Re-Roofing, Asbestos Testing and Abatement, and Residential Fire Sprinkler Systems only — no Commercial Alteration or Tenant Improvement guide is published. This is a confirmed absence on the current page, not an inference.. If your project isn't listed, confirm with City of Castle Pines Building Department (Community Development Department, Building Division) at 303-705-0227 before starting work.

In Castle Pines, the published Building Permit Fee — $1.00 to $500.00 is: $42.00. Additional published fees: Building Permit Fee — $501.00 to $2,000.00 — $42.00 for the first $500.00 plus $5.45 for each additional $100.00 or fraction thereof, up to and including $2,000.00; Building Permit Fee — $2,001.00 to $25,000.00 — $123.75 for the first $2,000.00 plus $25.00 for each additional $1,000.00 or fraction thereof, up to and including $25,000.00; Building Permit Fee — $25,001.00 to $50,000.00 — $698.75 for the first $25,000.00 plus $18.00 for each additional $1,000.00 or fraction thereof, up to and including $50,000.00; Building Permit Fee — $50,001.00 to $100,000.00 — $1,148.75 for the first $50,000.00 plus $12.45 for each additional $1,000.00 or fraction thereof, up to and including $100,000.00; Building Permit Fee — $100,001.00 to $500,000.00 — $1,771.25 for the first $100,000.00 plus $9.95 for each additional $1,000.00 or fraction thereof, up to and including $500,000.00; Building Permit Fee — $500,001.00 to $1,000,000.00 — $5,751.25 for the first $500,000.00 plus $8.45 for each additional $1,000.00 or fraction thereof, up to and including $1,000,000.00; Building Permit Fee — $1,000,001.00 and up — $9,976.25 for the first $1,000,000.00 plus $6.50 for each additional $1,000.00 or fraction thereof; Plan Review Fee — 65% of total building permit fee; Zoning Fee — $63.00 flat; Douglas County Use Tax — 1% of 50% of total project value; Castle Pines Use Tax — 3.75% of 50% of total project value. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Up to 10 days, per the City's Building Department FAQ, which states all commercial plans will be in review for up to 10 days.

You'll need: Building Permit Application (Commercial Alteration); Plan Set. See the required-documents checklist on this page for details on each.

Castle Pines requires 2 inspection(s) for a commercial alteration / tenant improvement permit, in order: Rough Trade, Final Inspection. Schedule each through City of Castle Pines Building Department (Community Development Department, Building Division) (303-705-0227).

Apply through City of Castle Pines Building Department (Community Development Department, Building Division) at 7437 Village Square Drive, Suite 200, Castle Pines, CO 80108. Phone: 303-705-0227, email: BuildingDept@castlepinesco.gov. Office hours: Monday through Thursday 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.; Friday 8:00 a.m. to 12:00 p.m. Fax 303-688-9414..

Castle Pines, Colorado has adopted: 2021 International Building Code (IBC), Chapters 1-35 inclusive, exclusive of Appendices — adopted by Ordinance No. 23-02 (Feb. 28, 2023), City of Castle Pines Municipal Code Chapter 18, Article I; 2021 International Residential Code (IRC), 1st printing; Chapter 11 of the 2018 edition of the International Residential Code (retained separately alongside the 2021 IRC per Ordinance No. 23-02's title recitals — Chapter 11 of the IRC covers energy efficiency; the City kept the 2018 version of this chapter rather than adopting the 2021 IRC's Chapter 11 wholesale); 2020 National Electrical Code (NEC) — City of Castle Pines Municipal Code Chapter 18, Article III, Sec. 18-3-10, adopted pursuant to Title 31, Article 16, Part 2, C.R.S., 'as adopted, amended and updated to the most current edition by the Colorado State Electrical Board from time to time' per the authority in Article 23 of Title 12, C.R.S. — the City ties its NEC edition to whatever the Colorado State Electrical Board currently recognizes, rather than freezing a single print edition; 2021 International Mechanical Code (IMC), Chapters 1-15 inclusive — Article IV; 2021 International Plumbing Code (IPC), Chapters 1-13 inclusive — Article V; 2021 International Fire Code (IFC) — adopted by Ordinance No. 23-07 (2023); enforced by the South Metro Fire Rescue Fire Protection District, which Ordinance No. 23-02/23-07 designates as the Fire Marshal's Office / fire code official for the City; 2021 International Fuel Gas Code (IFGC); 2018 International Energy Conservation Code (IECC); 2021 International Swimming Pool and Spa Code (ISPSC); 2021 International Existing Building Code (IEBC); Note on code-adoption sourcing: the 2021 IBC/IRC/IMC/IPC/IFGC/IECC(2018)/ISPSC/IEBC + 2020 NEC list above is drawn directly from the recitals and Sections 1-5 of Ordinance No. 23-02 (a scanned/image PDF, read via rendered page images since it is not machine-text-extractable), the definitive code-adoption ordinance for Chapter 18 of the Municipal Code. The City's own Building Department FAQ page states more casually that the City 'is currently under the 2021 International Building Code/International Residential Code and the 2023 National Electrical Code' — this FAQ-page NEC reference (2023) is NOT used as the governing citation in this record because it conflicts with the specific, dated ordinance text (2020 NEC, floating to the State Electrical Board's current edition); the ordinance is treated as authoritative and the FAQ's '2023 NEC' is noted as a likely informal/rounded reference to whatever edition the State Electrical Board currently recognizes, consistent with the ordinance's own floating-adoption mechanism.; HB22-1362 (Colorado statewide energy code floor via updated model electrical/energy provisions): no City of Castle Pines ordinance, code-adoption page, or fee schedule references HB22-1362 or a specific electric-vehicle-readiness / electrification-readiness local amendment as of the last verification (Ordinance No. 23-02 predates HB22-1362's later compliance deadlines and does not mention it); not asserted as inapplicable, simply unconfirmed for this jurisdiction after checking the governing ordinance and the Building Department's public-facing pages directly.. Local amendments apply — see the Castle Pines overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-08-02.

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Castle Pines building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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Property Access

Castle Pines's permit history is searchable by address

11,292 permits on record for Castle Pines, 2015–2026 — searchable by street address, with permit type, status, issued date and valuation where the city publishes them.

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