Boulder County property record for 1027 12th St, Boulder, CO 80302 · Last verified June 2026
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 9 bd · 6 ba · 3,651 sqft · built 1923 |
| Lot Size | 0.139 acres (6,046 sqft) |
| Owner | Individual Name on File |
| Last Sale | $285,000 (Jun 1996) |
| Tax Bill | $11,074 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-31-3-07-015 |
| Primary APN | 1463-31-3-07-015 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 9 Beds |
|---|---|
| Full Baths | 6 Baths |
| Total Rooms | 19 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 3,651 sqft Living Area |
| 1st Floor Area | 1,378 sqft |
| Upper Floors Area | 918 sqft |
| Basement Area | 1,355 sqft |
| Finished Basement | 1,355 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1923 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Combination |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 6,046 sqft (0.139 acres) |
| Porch | Porch |
|---|---|
| Porch Area | 102 sqft |
| Shed | 1 Shed |
| Total Buildings | 2 Buildings |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0006351 |
|---|---|
| Street Address | 1027 12TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80302-7291 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | LOTS 31-32 BLK 5 UNIVERSITY PLACE |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 31 |
| Legal Subdivision | UNIVERSITY PLACE - BO |
| Legal Block | 5 |
| Legal Lot Number | 31 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 4 |
| Census Block | 4003 |
| Census Tract | 12401 |
Source: Boulder County records · APN 1463-31-3-07-015
Assessment roll updated June 15, 2026 · Last verified June 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 File |
|---|---|
| Mailing Address | PO BOX 1959, BOULDER, CO 80306-1959 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Jun 19, 1996 · Amount on Record |
| Deed Sale | Jun 19, 1996 · Amount on Record |
| Prior Sale | Oct 12, 1990 · Amount on Record |
| Deed Document Number | 19961618579 |
| Record Updated | Sep 20, 2026 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Boulder City |
| Unified School District | Boulder Valley School District RE-2 (PK - 12) |
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.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $123,603 (+8.8%) Land $58,956 Building $64,647 | $1,817,700 (-) Land $867,000 Building $950,700 | |
| 2025 | $11,074.00 (+5.13%) | $113,607 (-7.69%) Land $54,188 Building $59,419 | $1,817,700 (-1.04%) Land $867,000 Building $950,700 |
| 2023 | $10,534.00 (+16.18%) | $123,066 (+29.25%) Land $55,215 Building $67,851 | $1,836,800 (+31.18%) Land $824,100 Building $1,012,700 |
| 2022 | $9,067.00 | $95,217 Land $44,261 Building $50,956 | $1,400,250 Land $650,900 Building $749,350 |
Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130124014, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 367 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Ayva | Fixed Wireless (unlicensed) | 2,500 / 2,500 |
| Lumen Technologies | Fiber | 2,000 / 1,000 |
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| Live Wire Networks | Fixed Wireless (licensed-by-rule) | 250 / 100 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
May also be available at this address: AT&T, Lumen Technologies, Magnolia Road Internet Cooperative. Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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