Boulder County property record for 1727 18th St, Boulder, CO 80302
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 11 bd · 6.5 ba · 3,001 sqft · built 1880 |
| Lot Size | 0.186 acres (8,110 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $995,000 (Jun 2010) |
| Tax Bill | $14,294 (2025) |
| Deeds & Mortgages | Feb 2022 Transfer Jan 2022 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 1463-30-8-00-017 |
| Primary APN | 1463-30-8-00-017 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 11 Beds |
|---|---|
| Full Baths | 6.5 Baths |
| Half Baths | 6 Half Baths |
| Total Rooms | 19 Rooms |
| Units | 4 Units |
| Stories | 2 Stories |
| Building Area | 3,001 sqft Living Area |
| 1st Floor Area | 1,372 sqft |
| Upper Floors Area | 1,629 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 8,110 sqft (0.186 acres) |
| Porch | Porch |
| Porch Area | 298 sqft |
| Deck Area | 165 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0000737 |
|---|---|
| Street Address | 1727 18TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-6767 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | TR 545 30-1N-70 TOTAL 3,001 SF |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | TR, NBR 158, 160, 162 |
| Legal Tract | 545 |
| Legal Block | 22 |
| Legal Lot Number | 1 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 12206 |
Source: Boulder County records, as of June 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 7676 SPRING DR, BOULDER, CO 80303-5035 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Feb 10, 2022 | Quit Claim Deed, Transfer NOT AVAILABLE, ASCENDANT NATIONAL TITLE CO |
| Jan 31, 2022 | Quit Claim Deed, Transfer · Conventional Mortgage PROVIDENT FUNDING ASSOCIATES LP |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jun 8, 2010 · Amount on Record |
| Deed Sale | Jun 8, 2010 · Amount on Record |
| Prior Sale | Dec 9, 1997 · Amount on Record |
| Deed Document Number | 20103079096 |
| Last Transfer Date | Jan 4, 2022 |
| Transfer Doc | 0003944623 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Feb 10, 2022 |
| Property Address | 1727 18TH ST, BOULDER, CO 80302-6767 |
| Document Number | 0003944623 |
| Instrument Date | Feb 4, 2022 |
| Instrument | 3944623 |
| Transaction Type | Transfer |
| Record Updated | Apr 15, 2022 |
| Title Company | NOT AVAILABLE, ASCENDANT NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 7676 SPRING DR, 7676, BOULDER, CO 80303-5035 |
| Name | Verified Name |
|---|---|
| Address | 7676 SPRING DR, BOULDER, CO 80303-5035 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Jan 31, 2022 |
| Property Address | 1727 18TH ST, BOULDER, CO 80302-6767 |
| Document Number | 0003942883 |
| Instrument Date | Jan 23, 2022 |
| Instrument | 3942883 |
| Transaction Type | Transfer |
| Record Updated | Apr 15, 2022 |
| Title Company | ASCENDANT NATIONAL TITLE CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 7676 SPRING DR, 7676, BOULDER, CO 80303-5035 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 7676 SPRING DR, BOULDER, CO 80303-5035 |
| Document Number | 0003942884 |
|---|---|
| Date | Jan 31, 2022 |
| Instrument | 3942884 |
| Name | PROVIDENT FUNDING ASSOCIATES LP |
|---|---|
| Type | Mortgage Company |
| Address | ENGLEWOOD, CO 80111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Feb 1, 2052 |
Source: Boulder County assessment roll, as of June 15, 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 | $159,419 (+8.8%) Land $62,111 Building $97,308 | $2,344,400 (-) Land $913,400 Building $1,431,000 | |
| 2025 | $14,294.00 (+23.73%) | $146,526 (+9.35%) Land $57,088 Building $89,438 | $2,344,400 (+17.22%) Land $913,400 Building $1,431,000 |
| 2023 | $11,553.00 (+30.93%) | $134,000 (+45.97%) Land $68,675 Building $65,325 | $2,000,000 (+48.15%) Land $1,025,000 Building $975,000 |
| 2022 | $8,824.00 | $91,800 Land $44,200 Building $47,600 | $1,350,000 Land $650,000 Building $700,000 |
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.
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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 101 individual policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 174 units insured incl. 73 condo units |
| Nearby Flood Claims | 10 (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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.6% of Colorado |
|---|---|
| Wildfire Likelihood | Under 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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