Boulder County property record for 603 Highland Ave, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 5,163 sqft · built 1900 |
| Lot Size | 0.238 acres (10,351 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $6,685,000 (Dec 2020) |
| Tax Bill | $45,273 (2025) |
| Deeds & Mortgages | Dec 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-25-4-09-005 |
| Primary APN | 1461-25-4-09-005 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 12 Rooms |
| Stories | 2 Stories |
| Building Area | 5,163 sqft Living Area |
| Gross Area | 5,491 sqft |
| 1st Floor Area | 2,470 sqft |
| Upper Floors Area | 1,902 sqft |
| Basement Area | 651 sqft |
| Finished Basement | 323 sqft |
| Unfinished Basement | 328 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1900 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Multi-Level |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 10,351 sqft (0.238 acres) |
| Garage Type | Detached |
| Garage Area | 524 sqft |
| Porch | Porch |
|---|---|
| Porch Area | 405 sqft |
| Deck Area | 72 sqft |
| Patio Area | 468 sqft |
| Total Buildings | 3 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Hot Water |
| Heating Fuel | Electric |
| Account Number | R0007870 |
|---|---|
| Street Address | 603 HIGHLAND AVE |
| City | BOULDER |
| State | CO |
| Zip | 80302-4721 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 25-26-27 BLK 6 MAPLETON |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 25 |
| Legal Subdivision | MAPLETON - BO |
| Legal Block | 6 |
| Legal Lot Number | 25 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 4 |
| Census Block | 4011 |
| Census Tract | 12101 |
Source: Boulder County records, as of September 18, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 603 HIGHLAND AVE, BOULDER, CO 80302-4721 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 23, 2020 · Amount on Record |
| Deed Sale | Dec 23, 2020 · Amount on Record |
| Prior Sale | Dec 4, 2014 · Amount on Record |
| Deed Document Number | 20203844744 |
| Record Updated | Oct 29, 2026 |
| Document Type | Special Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Dec 23, 2020 |
| Property Address | 603 HIGHLAND AVE, BOULDER, CO 80302-4721 |
| Document Number | 0003844744 |
| Instrument Date | Dec 15, 2020 |
| Instrument | 3844744 |
| Transaction Type | Transfer |
| Record Updated | Mar 31, 2022 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $668.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 603 HIGHLAND AVE, BOULDER, CO 80302-4721 |
| Document Number | 0003844745 |
|---|---|
| Date | Dec 23, 2020 |
| Instrument | 3844745 |
| Name | M & T BANK |
|---|---|
| Type | Bank |
| Type | ARM |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Jan 1, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.75% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Jan 1, 2031 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 7.75% |
| Index | 1-Year CMT |
| Max Rate | 7.75% |
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 | $511,836 (+7.8%) Land $131,308 Building $380,528 | $7,597,000 (-) Land $2,001,000 Building $5,596,000 | |
| 2025 | $45,273.00 (+10.38%) | $474,813 (-0.8%) Land $125,063 Building $349,750 | $7,597,000 (+6.35%) Land $2,001,000 Building $5,596,000 |
| 2023 | $41,015.00 (+58.55%) | $478,622 (+71.81%) Land $128,198 Building $350,424 | $7,143,600 (+78.22%) Land $1,913,400 Building $5,230,200 |
| 2022 | $25,869.00 | $278,570 Land $96,744 Building $181,826 | $4,008,200 Land $1,392,000 Building $2,616,200 |
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.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 15 units insured incl. 9 condo units |
| Nearby Flood Claims | 2 (2013) |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 68% of the US · above 62% of Colorado |
|---|---|
| Wildfire Likelihood | 0.3% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 684 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 · DSL in parts of the area | 2,000 / 1,000 |
| Xfinity Cable | 2,000 / 250 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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