Boulder County property record for 3150 18th St, Boulder, CO 80304
| Property Type | Single Family Home |
|---|---|
| Details | 6 bd · 4.25 ba · 4,205 sqft · built 1957 |
| Lot Size | 0.308 acres (13,433 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $3,125,000 (Apr 2023) |
| Tax Bill | $15,087 (2025) |
| Deeds & Mortgages | Apr 2023 Sale & Mortgage Mar 2023 Mortgage + 3 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 1463-19-3-25-009 |
| Primary APN | 1463-19-3-25-009 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 6 Beds |
|---|---|
| Full Baths | 4.25 Baths |
| Half Baths | 3 Half Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 4,205 sqft Living Area |
| Gross Area | 4,566 sqft |
| 1st Floor Area | 1,566 sqft |
| Upper Floors Area | 946 sqft |
| Basement Area | 1,344 sqft |
| Finished Basement | 1,344 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 2005 |
| Architectural Style | Ranch |
| Exterior Material | Brick Veneer |
| Construction Type | Masonry / Concrete Block |
| Roof Material | Asphalt |
| Lot Area | 13,433 sqft (0.308 acres) |
| Garage Type | Attached |
| Garage Area | 361 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Porch |
| Porch Area | 358 sqft |
| Deck Area | 210 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0005503 |
|---|---|
| Street Address | 3150 18TH ST |
| City | BOULDER |
| State | CO |
| Zip | 80304-2622 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT 20 BLK 6 SILVER MAPLE VILLAGE 2 |
| Legal Range | 70 |
| Legal Township | 1N |
| Legal Section | 19 |
| Legal Subdivision | SILVER MAPLE VILLAGE 2 - BO |
| Legal Block | 6 |
| Legal Lot Number | 20 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | BOULDER |
| Census Block Group | 2 |
| Census Block | 2012 |
| Census Tract | 12106 |
Source: Boulder County records · APN 1463-19-3-25-009
Assessment roll updated June 15, 2026 · Last verified August 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 File |
|---|---|
| Mailing Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Apr 11, 2023 | Warranty Deed, Transfer · Conventional Mortgage ELEVATIONS CU |
| Mar 13, 2023 | Deed of Trust, Mortgage · Commercial Mortgage FLATIRONS BANK |
| Aug 04, 2022 | Intrafamily Transfer, Transfer |
| Oct 25, 2017 | Deed of Trust, Mortgage · Commercial Mortgage JPMORGAN CHASE BANK NA |
| Sep 16, 2020 | Deed of Trust, Mortgage · Conventional Mortgage JPMORGAN CHASE BANK NA |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Apr 11, 2023 · Amount on Record |
| Deed Sale | Apr 11, 2023 · Amount on Record |
| Prior Sale | Jun 04, 2012 · Amount on Record |
| Deed Document Number | 20234003450 |
| Prior Transfer Date | Aug 04, 2022 |
| Prior Transfer Doc | 0003975382 |
| Record Updated | Sep 20, 2026 |
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Apr 11, 2023 |
| Property Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Document Number | 0004003450 |
| Instrument Date | Apr 07, 2023 |
| Instrument | 4003450 |
| Transaction Type | Transfer |
| Record Updated | Apr 18, 2023 |
| Title Company | LAND TITLE |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on File |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $312.50 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Document Number | 0004003451 |
|---|---|
| Date | Apr 11, 2023 |
| Instrument | 4003451 |
| Name | ELEVATIONS CU |
|---|---|
| Type | Credit Union |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | May 01, 2053 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.75% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | May 01, 2028 |
| Change Frequency | 6 Months |
| Min Rate At Change | 3.75% |
| Max Rate At Change | 7.75% |
| Index | Other |
| Max Rate | 10.7% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Transaction Type | Mortgage |
| Record Updated | Mar 17, 2023 |
| Name | Verified Name |
|---|---|
| Address | 869 BLUEBIRD LN, LAFAYETTE, CO 80026-8911 |
| Document Number | 0003999777 |
|---|---|
| Date | Mar 13, 2023 |
| Instrument | 3999777 |
| Name | FLATIRONS BANK |
|---|---|
| Type | Bank |
| Address | BOULDER, CO 80302 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 12 Months |
| Due | Mar 06, 2024 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | BOULDER CO |
| Recording Date | Aug 04, 2022 |
| Property Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Document Number | 0003975382 |
| Instrument Date | Aug 04, 2022 |
| Instrument | 3975382 |
| Transaction Type | Transfer |
| Record Updated | Aug 22, 2022 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0003621995 |
|---|---|
| Date | Oct 25, 2017 |
| Instrument | 3621995 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Nov 05, 2047 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 3150 18TH ST, BOULDER, CO 80304-2622 |
| Transaction Type | Mortgage |
| Record Updated | Mar 31, 2022 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|
| Document Number | 0003815736 |
|---|---|
| Date | Sep 16, 2020 |
| Instrument | 3815736 |
| Name | JPMORGAN CHASE BANK NA |
|---|---|
| Type | Bank |
| Address | COLUMBUS, OH 43240 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Sep 01, 2050 |
Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified August 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 | $172,156 (+8.8%) Land $71,074 Building $101,082 | $2,531,700 (-) Land $1,045,200 Building $1,486,500 | |
| 2025 | $15,087.00 (+6.05%) | $158,231 (-6.05%) Land $65,325 Building $92,906 | $2,531,700 (+0.71%) Land $1,045,200 Building $1,486,500 |
| 2023 | $14,226.00 (+9.06%) | $168,424 (+19.9%) Land $68,648 Building $99,776 | $2,513,800 (+24.38%) Land $1,024,600 Building $1,489,200 |
| 2022 | $13,044.00 | $140,467 Land $52,438 Building $88,029 | $2,021,100 Land $754,500 Building $1,266,600 |
Source: FEMA National Flood Hazard Layer as of October 14, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 50 policies |
| Community Rating System | Class 5 (25% premium discount) |
| Nearby Flood Policies | 50 in force |
| Nearby Flood Claims | 3 (2013) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides |
| Claims by Event |
|
| Wildfire Risk | Low lower than 80% of the US · lower than 91% of Colorado |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Ayva Fixed Wireless | 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 | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
Based on FCC filings for 640 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF BOULDER serves 166,080 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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