COTaxCalc.comHB24B-1001 Ready
Colorado Property Tax Engine: Modeled for Tax Year 2026. Mill levies are certified annually each December by county authorities.

New Construction Buyer Alert: Beware the MLS "Unimproved Dirt" Tax Trap

Month-13 Escrow Shock

New-build listings on MLS, Zillow, or Redfin often display nominal property taxes (typically ~$300 to $1,200/year in raw land examples). This is because county assessors initially assess only the unimproved vacant lot prior to full certificate of occupancy and structural re-assessment.

Colorado HB24B-1001 Colorado Property Tax & Escrow Estimator

Estimate Tax & Monthly Escrow

$
$250,000$1,000,000$2,000,000
Includes Title 32 Metro District+47.0 Mills

Inspiration Metropolitan District bond levy funding extensive clubhouse, pools, pine-lined trails, and regional arterial infrastructure.

$
%

Estimated Metro-District Impact

The metro district levy (47.0 mills) adds approximately +$181.11/mo ($2,173.28/year) to your housing payment.

📉 Estimated Mortgage Capacity Impact: ~$28,653

Inspiration / Rockinghorse (Parker)Levy Benchmark 2024
Data Source: Douglas County 2024 Mill Levy Certification (Tax Area 0075 / Inspiration Metro)
Mill Levy Source Year: 2024 (Certified)
Tax Calculation Rules: 2026 Statutory Law Applied
⚠️ 2026 Certified Mill Levies are certified each December by county authorities.
Last Verified: 2026-09-20
View Official Assessor Certification
Low Mill Benchmark119.0 mills
$640/mo

Estimated Monthly Escrow (Tax + Ins)

Property Tax:$485/mo
Est. Insurance:$156/mo
Annual Tax:$5,814/yr
Certified Area Benchmark
Inspiration / Rockinghorse (Parker)124.0 mills
$689/mo

Estimated Monthly Escrow (Tax + Ins)

Of that, Metro District:+$181.11/mo
Equivalent Loan Capacity Impact:~$28,653
Property Tax:$505/mo
Est. Insurance:$183/mo
Annual Tax:$6,062/yr
Effective Rate:0.81%
High Mill Benchmark129.0 mills
$746/mo

Estimated Monthly Escrow (Tax + Ins)

Property Tax:$526/mo
Est. Insurance:$220/mo
Annual Tax:$6,310/yr

Estimated Mortgage Capacity Impact: -$28,653

Metro district levy (47.0 mills) adds approximately +$181.11/month to your housing payment

Tax Year 2026 Rules

The metro district portion adds about +$181.11/month to your tax bill. At a 6.5% 30-year fixed interest rate, that payment could support about $28,653 less in equivalent loan amount. Illustrative only; actual lender qualification depends on income, debts, taxes, insurance, loan program, DTI limits, and underwriting factors.

Escrow Cushion Note: Standard RESPA regulations allow mortgage lenders to collect up to a 2-month reserve cushion at closing (estimated $1,377).
Varies by lender & closing month

Export & Share Calculation

Send instant payment breakdown via Text Message, Email, or generate a PDF report for your client

Douglas County Assessor

County Directory

Covers Inspiration / Rockinghorse (Parker) & Douglas County County properties

301 Wilcox St, Castle Rock, CO 80104

This calculator provides benchmark estimates. Always verify exact parcel mill levies on your county assessor PIN record.

Colorado Property Tax & Escrow Methodology

Colorado calculates property taxes using two separate residential assessment rates established under SB24-233 and HB24B-1001:

1. School District Assessment (7.05%)

Assessed at a flat 7.05% of actual market value with no statutory deduction. School districts account for roughly 45% to 60% of total non-metro mill levies.

2. Local Government Assessment (6.80% in 2026 / 6.25% in 2025)

In 2026 (HB24B-1001), local governments assess at 6.80% after subtracting a statutory 10% reduction on the first $700,000 (max $70k deduction). In 2025 (SB24-233), local governments assess at a flat 6.25%.

Disclaimer: This tool provides estimated calculations based on statutory assessment rules and certified historical mill levy benchmarks. It does not constitute a Loan Estimate, tax bill, or lender underwriting commitment. Actual annual taxes are determined by your county assessor based on your parcel's unique tax area and certified in December.

Est. Escrow
$689/mo
Metro: +$181.11/mo