Boulder County property record for 1723 Marine St, Boulder, CO 80302
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 840 sqft · built 1940 |
| Lot Size | 0.114 acres (4,967 sqft) |
| Owner | Company Name on File |
| Last Sale | $758,500 (Jun 2020) |
| Tax Bill | $6,920 (2025) |
| Deeds & Mortgages | May 2021 Mortgage Jun 2020 Sale |
| Flood Zone | Zone AE (high risk) |
| APN | 1463-31-1-00-031 |
| Primary APN | 1463-31-1-00-031 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 840 sqft Living Area |
| 1st Floor Area | 840 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Ranch |
| Exterior Material | Combination |
| Construction Type | Frame |
| Lot Area | 4,967 sqft (0.114 acres) |
| Garage Type | Carport |
| Garage Area | 198 sqft |
| Carport | Carport |
| Carport Area | 198 sqft |
| Porch | Porch |
| Porch Area | 50 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0005690 |
|---|---|
| Street Address | 1723 MARINE ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6450 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 131-B1 BO 31-1N-70 BOOK 906 PAGE 80 BCR |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | TR, NBR 158, 160, 162 |
| Legal Tract | 131-B1 |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2006 |
| Census Tract | 12300 |
1723 Marine St is owned by a company that bought it in June 2020.
Source: Boulder County records, as of September 18, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 4 SOUTHWINDS LN, MALVERN, PA 19355-9686 |
| 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.
| Date | Document |
|---|---|
| May 24, 2021 | Deed of Trust, Mortgage · Commercial Mortgage ELEVATIONS CU |
| Jun 26, 2020 | Warranty Deed, Transfer LAND TITLE GUARANTEE |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 26, 2020 · Amount on File |
| Deed Sale | Jun 26, 2020 · Amount on File |
| Prior Sale | May 30, 2013 · Amount on File |
| Deed Document Number | 20203794032 |
| Prior Transfer Date | Aug 17, 2001 |
| Prior Transfer Doc | 0002189267 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 1723 MARINE ST, BOULDER, CO 80302-6450 |
| Transaction Type | Mortgage |
| Record Updated | Jun 3, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0003887098 |
|---|---|
| Date | May 24, 2021 |
| Instrument | 3887098 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Address | BOULDER, CO 80301 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jun 26, 2020 |
| Property Address | 1723 MARINE ST, BOULDER, CO 80302-6450 |
| Document Number | 0003794032 |
| Instrument Date | Jun 2, 2020 |
| Instrument | 3794032 |
| Transaction Type | Transfer |
| Record Updated | Jul 24, 2020 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount on Record |
|---|---|
| Tax | $76.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Company |
| Address | 4 SOUTHWINDS LN MALVERN PA 193559686, MALVERN, PA 19355-9686 |
The 2025 property tax bill for 1723 Marine St was $6,920, up 21.2% 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 | $73,284 (+2.17%) Land $58,861 Building $14,423 | $1,147,700 (-) Land $935,600 Building $212,100 | |
| 2025 | $6,920.00 (+21.19%) | $71,731 Land $58,475 Building $13,256 | $1,147,700 Land $935,600 Building $212,100 |
| 2024 | $5,710.00 (+1.82%) | ||
| 2023 | $5,608.00 (-0.5%) | $67,764 (+13.15%) Land $59,047 Building $8,717 | $1,011,400 (+17.37%) Land $881,300 Building $130,100 |
| 2022 | $5,636.00 | $59,888 Land $49,880 Building $10,008 | $861,700 Land $717,700 Building $144,000 |
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 1723 Marine St in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Varies along the reach; see FIRM |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 32 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 70 units insured incl. 38 condo units |
| Nearby Flood Claims | 23 (2013) |
| Most Recent Claim | Oct 2013 · 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 1723 Marine St 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 93% of the US · lower than 97.2% 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 432 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 |
| Verizon Fixed Wireless | 300 / 20 |
| LiveWireNet Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
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