Boulder County property record for 720 Marine St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,670 sqft · built 1912 |
| Lot Size | 0.116 acres (5,063 sqft) |
| Owner | Company Name on File |
| Last Sale | $182,500 (Feb 1992) |
| Tax Bill | $6,487 (2025) |
| Deeds & Mortgages | Feb 2020 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 1461-36-1-00-020 |
| Primary APN | 1461-36-1-00-020 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 2 Stories |
| Building Area | 1,670 sqft Living Area |
| Gross Area | 2,272 sqft |
| 1st Floor Area | 925 sqft |
| Upper Floors Area | 745 sqft |
| Basement Area | 504 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1912 |
|---|---|
| Effective Year Built | Effective 1975 |
| Architectural Style | Multi-Level |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Lot Area | 5,063 sqft (0.116 acres) |
| Garage Type | Detached |
| Garage Area | 340 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Enclosed Porch |
| Porch Area | 175 sqft |
| Heating System | Hot Water |
|---|
| Account Number | R0007038 |
|---|---|
| Street Address | 720 MARINE ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-5948 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 494-D BOULDER 36-1N-71 BOOK 748 PAGE 333 BCR |
| Legal Range | 71 |
| Legal Township | 1N |
| Legal Section | 36 |
| Legal Subdivision | TR, NBR 158, 160, 162 |
| Legal Tract | 494-D |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 12201 |
720 Marine St is owned by a company that bought it in February 1992.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 2291 ARAPAHOE AVE, BOULDER, CO 80302-6603 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 19, 1992 · Amount on File |
| Deed Sale | Feb 19, 1992 · Amount on File |
| Deed Document Number | 19921162126-9 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Feb 4, 2020 |
| Property Address | 720 MARINE ST, BOULDER, CO 80302-5948 |
| Document Number | 0003764259 |
| Instrument Date | Dec 30, 2019 |
| Instrument | 3764259 |
| Transaction Type | Transfer |
| Record Updated | Feb 20, 2020 |
| Title Company | NOT AVAILABLE |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 2291 ARAPAHOE AVE BOULDER CO 803026603, BOULDER, CO 80302-6603 |
The 2025 property tax bill for 720 Marine St was $6,487, down 0.6% from the year before.
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 | $68,340 (-21.68%) Land $59,473 Building $8,867 | $1,075,000 (-23%) Land $944,600 Building $130,400 | |
| 2025 | $6,487.00 (-0.6%) | $87,257 Land $59,038 Building $28,219 | $1,396,100 Land $944,600 Building $451,500 |
| 2024 | $6,526.00 (+1.81%) | ||
| 2023 | $6,410.00 (-9.63%) | $77,050 (+1.95%) Land $60,541 Building $16,509 | $1,150,000 (+5.76%) Land $903,600 Building $246,400 |
| 2022 | $7,093.00 | $75,574 Land $50,888 Building $24,686 | $1,087,400 Land $732,200 Building $355,200 |
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.
FEMA maps place 720 Marine St in Zone X, an area of minimal 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 minimal risk |
|---|---|
| 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 26 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 41 units insured incl. 15 condo units |
| Nearby Flood Claims | 19 (1983–2014) |
| Claims Outside the SFHA | 7 of 19 |
| Most Recent Claim | Jul 2014 · rainfall accumulation |
| 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 720 Marine St is moderate, ranking above 67% of the US, with a 0.3% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 67% of the US · above 60% 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 550 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: Magnolia Road Internet Cooperative, Verizon.
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