Boulder County property record for 100 S 34th St, Boulder, CO 80305
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3.25 ba · 2,276 sqft · built 1955 |
| Lot Size | 0.165 acres (7,205 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $950,000 (Apr 2019) |
| Tax Bill | $6,955 (2025) |
| Deeds & Mortgages | Jun 2019 Mortgage Sep 2020 Mortgage + 2 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 1577-05-3-08-004 |
| Primary APN | 1577-05-3-08-004 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3.25 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,276 sqft Living Area |
| Gross Area | 2,556 sqft |
| 1st Floor Area | 1,556 sqft |
| Upper Floors Area | 720 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 2010 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 7,205 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 280 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Account Number | R0013068 |
|---|---|
| Street Address | 100 S 34TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80305-3430 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 4 BLK 6 MARTIN ACRES 1 |
| Legal Range | 70 |
| Legal Township | 1S |
| Legal Section | 05 |
| Legal Subdivision | MARTIN ACRES 1 - BO |
| Legal Block | 6 |
| Legal Lot Number | 4 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2018 |
| Census Tract | 12507 |
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 | 100 S 34TH ST, BOULDER, CO 80305-3430 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Jun 3, 2019 | Deed of Trust, Mortgage · Conventional Mortgage GUILD MORTGAGE CO |
| Sep 11, 2020 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE INC |
| Apr 29, 2019 | Warranty Deed, Transfer LAND TITLE GUARANTEE |
| Sep 11, 2017 | Warranty Deed, Transfer · Conventional Mortgage ELEVATIONS CU |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Apr 29, 2019 · Amount on Record |
| Deed Sale | Apr 29, 2019 · Amount on Record |
| Prior Sale | Sep 11, 2017 · Amount on Record |
| Deed Document Number | 20193709489 |
| Prior Transfer Date | Feb 23, 2012 |
| Prior Transfer Doc | 0003205349 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 100 S 34TH ST, BOULDER, CO 80305-3430 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | LAND TITLE GUARANTEE CO |
| Name | Verified Name |
|---|
| Document Number | 0003715556 |
|---|---|
| Date | Jun 3, 2019 |
| Instrument | 3715556 |
| Name | GUILD MORTGAGE CO |
|---|---|
| Type | Mortgage Company |
| Address | SAN DIEGO, CA 92111 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Jun 1, 2049 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 100 S 34TH ST, BOULDER, CO 80305-3430 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Title Company | FIRST INTEGRITY TITLE |
| Name | Verified Name |
|---|
| Document Number | 0003814699 |
|---|---|
| Date | Sep 11, 2020 |
| Instrument | 3814699 |
| Name | GUARANTEED RATE INC |
|---|---|
| Type | Mortgage Company |
| Address | CHICAGO, IL 60613 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2050 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 29, 2019 |
| Property Address | 100 S 34TH ST, BOULDER, CO 80305-3430 |
| Document Number | 0003709489 |
| Instrument Date | Apr 26, 2019 |
| Instrument | 3709489 |
| Transaction Type | Transfer |
| Record Updated | May 7, 2019 |
| Title Company | LAND TITLE GUARANTEE |
| Amount | Amount Recorded |
|---|---|
| Tax | $95.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 100 S 34TH ST BOULDER CO 803053430, BOULDER, CO 80305-3430 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Sep 11, 2017 |
| Property Address | 100 S 34TH ST, BOULDER, CO 80305-3430 |
| Document Number | 0003613952 |
| Instrument Date | Sep 8, 2017 |
| Instrument | 3613952 |
| Transaction Type | Transfer |
| Record Updated | Sep 19, 2017 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE INSURA |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $88.00 |
| Amount Accuracy | Confirmed |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 100 S 34TH ST BOULDER CO 803053430, BOULDER, CO 80305-3430 |
| Document Number | 3613953 |
|---|---|
| Date | Sep 11, 2017 |
| Instrument | 3613953 |
| Name | ELEVATIONS CU |
|---|---|
| Address | BOULDER, CO 80301 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 10, 2047 |
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 | $74,610 (+2.28%) Land $33,320 Building $41,290 | $1,167,200 (-) Land $560,000 Building $607,200 | |
| 2025 | $6,955.00 (+2.28%) | $72,950 (-11.51%) Land $35,000 Building $37,950 | $1,167,200 (-5.14%) Land $560,000 Building $607,200 |
| 2023 | $6,800.00 (+16.08%) | $82,436 (+30.67%) Land $41,017 Building $41,419 | $1,230,400 (+35.55%) Land $612,200 Building $618,200 |
| 2022 | $5,858.00 | $63,085 Land $30,420 Building $32,665 | $907,700 Land $437,700 Building $470,000 |
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 |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 9 in force |
| Nearby Flood Claims | 1 (2013) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
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 65% of the US · lower than 82% of Colorado |
|---|---|
| Wildfire Likelihood | 0.03% 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 451 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 | 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 |
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