Boulder County property record for 3645 Martin Dr, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,320 sqft · built 1955 |
| Lot Size | 0.167 acres (7,274 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $664,024 (Aug 2021) |
| Tax Bill | $4,020 (2025) |
| Deeds & Mortgages | Aug 2021 Transfer Aug 2021 Transfer + 3 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-05-3-05-006 |
| Primary APN | 1577-05-3-05-006 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,320 sqft Living Area |
| Gross Area | 1,600 sqft |
| 1st Floor Area | 1,320 sqft |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1970 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 7,274 sqft (0.167 acres) |
| Garage Area | 280 sqft |
| Porch | Enclosed Porch |
| Porch Area | 280 sqft |
| Patio Area | 100 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0014462 |
|---|---|
| Street Address | 3645 MARTIN DR |
| City | BOULDER |
| State | CO |
| Zip | 80305-5450 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 6 BLK 10 MARTIN ACRES 1 |
| Legal Subdivision | MARTIN ACRES 1 - BO |
| Legal Block | 10 |
| Legal Lot Number | 6 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 12507 |
3645 Martin Dr is owned and occupied by two individuals who bought it in August 2021.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Aug 30, 2021 | Correction Deed |
| Aug 30, 2021 | Correction Deed |
| Aug 30, 2021 | Special Warranty Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Aug 30, 2021 | Special Warranty Deed, Transfer · Conventional Mortgage UNITED WHOLESALE MORTGAGE |
| Apr 13, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Aug 30, 2021 · Amount on File |
| Deed Sale | Aug 30, 2021 · Amount on File |
| Prior Sale | Aug 30, 2021 · Amount on File |
| Deed Document Number | 20213910234 |
| Prior Transfer Date | May 17, 2021 |
| Prior Transfer Doc | 0003910121 |
| Record Updated | Oct 29, 2026 |
| Document Type | Correction Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 30, 2021 |
| Property Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910233 |
| Instrument Date | Aug 17, 2021 |
| Instrument | 3910233 |
| Record Updated | Sep 7, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 501 HARTFORD DR, BOULDER, CO 80305-5714 |
| Document Type | Correction Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 30, 2021 |
| Property Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910121 |
| Instrument Date | May 17, 2021 |
| Instrument | 3910121 |
| Record Updated | Sep 7, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 501 HARTFORD DR, BOULDER, CO 80305-5714 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 30, 2021 |
| Property Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910234 |
| Instrument Date | May 17, 2021 |
| Instrument | 3910234 |
| Transaction Type | Transfer |
| Record Updated | Sep 7, 2021 |
| Title Company | HERITAGE TITLE COMPANY, HERITAGE TITLE CO |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $66.40 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910123 |
|---|---|
| Date | Aug 30, 2021 |
| Instrument | 3910123 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 358 Months |
| Due | Jun 1, 2051 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 30, 2021 |
| Property Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910122 |
| Instrument Date | May 17, 2021 |
| Instrument | 3910122 |
| Transaction Type | Transfer |
| Record Updated | Sep 7, 2021 |
| Title Company | HERITAGE TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $66.40 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003910235 |
|---|---|
| Date | Aug 30, 2021 |
| Instrument | 3910235 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 358 Months |
| Due | Jun 1, 2051 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 13, 2021 |
| Property Address | 3645 MARTIN DR, BOULDER, CO 80305-5450 |
| Document Number | 0003876427 |
| Instrument Date | Apr 9, 2021 |
| Instrument | 3876427 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 501 HARTFORD DR, BOULDER, CO 80305-5714 |
The 2025 property tax bill for 3645 Martin Dr was $4,020.
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $41,286 (-2.08%) Land $30,501 Building $10,785 | $674,600 (-) Land $516,000 Building $158,600 | |
| 2025 | $4,020.00 | $42,163 Land $32,250 Building $9,913 | $674,600 Land $516,000 Building $158,600 |
| 2023 | $3,854.00 (+19.17%) | $48,313 (+38.7%) Land $37,600 Building $10,713 | $721,100 (+43.87%) Land $561,200 Building $159,900 |
| 2022 | $3,234.00 | $34,833 Land $28,043 Building $6,790 | $501,200 Land $403,500 Building $97,700 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA maps place 3645 Martin Dr in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 25 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 25 in force |
| Nearby Flood Claims | 16 (1995–2013) |
| Claims Outside the SFHA | 2 of 16 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Wildfire risk around 3645 Martin Dr is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF BOULDER serves 166,080 people · EPA ID CO0107152 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2024 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Haloacetic acids resolved · Jul 2017 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 451 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Networks Fixed Wireless | 2,500 / 2,500 |
| CenturyLink Fiber | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
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