Boulder County property record for 2510 23rd St, Boulder, CO 80304
| Property Type | Multi-Family Dwellings |
|---|---|
| Details | 4 bd · 2.75 ba · 3,750 sqft · built 1955 |
| Lot Size | 0.297 acres (12,935 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $651,500 (Jul 2005) |
| Tax Bill | $13,527 (2025) |
| Deeds & Mortgages | May 2017 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-30-1-00-026 |
| Primary APN | 1463-30-1-00-026 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2.75 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 3,750 sqft Living Area |
| 1st Floor Area | 2,238 sqft |
| Basement Area | 1,512 sqft |
| Finished Basement | 1,512 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Ranch |
| Exterior Material | Combination |
| Construction Type | Frame |
| Roof Material | Asphalt |
| Lot Area | 12,935 sqft (0.297 acres) |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0007396 |
|---|---|
| Street Address | 2510 23RD ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-3706 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Multi-Family Dwellings |
| Legal Description | TRACTS 563-A-1 563-B-1 & 563-C 30-1N-70 PER DEED 931702 07/22/88 BCR |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 30 |
| Legal Subdivision | TR, NBR 101-103,105,107,109,170 |
| Legal Tract | 563 |
| Legal Block | 2 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 12107 |
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 | 2512 23RD ST, BOULDER, CO 80304-3706 |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jul 6, 2005 · Amount on Record |
| Deed Sale | Jul 6, 2005 · Amount on Record |
| Prior Sale | Sep 9, 2003 · Amount on Record |
| Deed Document Number | 20052701734 |
| Last Transfer Date | Feb 10, 2012 |
| Transfer Doc | 0003203363 |
| Record Updated | Oct 29, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | May 3, 2017 |
| Property Address | 2510 23RD ST, BOULDER, CO 80304-3706 |
| Document Number | 0003590208 |
| Instrument Date | May 3, 2017 |
| Instrument | 3590208 |
| Transaction Type | Transfer |
| Record Updated | May 12, 2017 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Common |
| Address | 2512 23RD ST BOULDER CO 803043706, BOULDER, CO 80304-3706 |
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 | $146,839 (+5.38%) Land $94,493 Building $52,346 | $2,229,400 (-) Land $1,459,600 Building $769,800 | |
| 2025 | $13,527.00 (+1.54%) | $139,338 (-10.3%) Land $91,225 Building $48,113 | $2,229,400 (-3.85%) Land $1,459,600 Building $769,800 |
| 2023 | $13,322.00 (+22.1%) | $155,346 (+34.99%) Land $96,071 Building $59,275 | $2,318,600 (+37.01%) Land $1,433,900 Building $884,700 |
| 2022 | $10,911.00 | $115,076 Land $73,358 Building $41,718 | $1,692,300 Land $1,078,800 Building $613,500 |
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 |
| Flood Insurance Cost | Premium on Record median of 31 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 31 in force |
| Nearby Flood Claims | 5 (2013) |
| Claims Outside the SFHA | 2 of 5 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| 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 663 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 |
May also be available: AT&T.
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