Boulder County property record for 623 Martin St, Longmont, CO 80501
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,592 sqft · built 1937 |
| Lot Size | 0.207 acres (8,993 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $1,970 (2025) |
| Deeds & Mortgages | Aug 2018 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 1315-03-1-14-019 |
| Primary APN | 1315-03-1-14-019 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,592 sqft Living Area |
| Gross Area | 1,992 sqft |
| 1st Floor Area | 936 sqft |
| Basement Area | 936 sqft |
| Finished Basement | 656 sqft |
| Unfinished Basement | 280 sqft |
| Interior Walls | Plaster |
| Year Built | Built 1937 |
|---|---|
| Effective Year Built | Effective 1937 |
| Architectural Style | Ranch |
| Exterior Material | Wood Shingle |
| Construction Type | Frame |
| Lot Area | 8,993 sqft (0.207 acres) |
| Garage Type | Detached |
| Garage Area | 720 sqft |
| Parking Spaces | 3 Parking Spaces |
| Porch | Enclosed Porch |
| Porch Area | 218 sqft |
| Heating System | Forced Air with A/C |
|---|
| Account Number | R0042552 |
|---|---|
| Street Address | 623 MARTIN ST |
| City | LONGMONT |
| State | CO |
| Zip | 80501-5101 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS 31-32 BLK 22 DOWNER & DONOVAN |
| Legal Range | 69 |
| Legal Township | 2N |
| Legal Section | 03 |
| Legal Subdivision | DOWNER & DONOVANS (OT LG B22) - LG |
| Legal Block | 22 |
| Legal Lot Number | 31 |
| Jurisdiction | BOULDER CO |
| Township / Civil Division | LONGMONT |
| Census Block Group | 3 |
| Census Block | 3013 |
| Census Tract | 13401 |
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 | 623 MARTIN ST, LONGMONT, CO 80501-5101 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 6, 1998 |
| Deed Sale | Jan 6, 1998 |
| Prior Sale | Oct 20, 1989 |
| Deed Document Number | 19981760784 |
| Last Transfer Date | Oct 22, 2003 |
| Transfer Doc | 0002563645 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | BOULDER CO |
| Property Address | 623 MARTIN ST, LONGMONT, CO 80501-5101 |
| Document Number | 0003673773 |
| Instrument Date | Aug 28, 2018 |
| Transaction Type | Mortgage |
| Record Updated | Sep 10, 2018 |
| Name | Verified Name |
|---|---|
| Address | 623 MARTIN ST LONGMONT CO 805015101, LONGMONT, CO 80501-5101 |
| Document Number | 0003673773 |
|---|---|
| Date | Aug 29, 2018 |
| Instrument | 3673773 |
| Name | MISCELLANEOUS GOVT AGCY |
|---|---|
| Address | LONGMONT, CO 80501 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
Source: Boulder County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Boulder County |
| Municipality | Longmont City |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $24,504 (-2.08%) Land $6,273 Building $18,231 | $400,400 (-) Land $132,300 Building $268,100 | |
| 2025 | $1,970.00 (+16.98%) | $25,025 (-11.37%) Land $8,269 Building $16,756 | $400,400 (-4.98%) Land $132,300 Building $268,100 |
| 2023 | $1,684.00 (+11.97%) | $28,234 (+27.47%) Land $9,132 Building $19,102 | $421,400 (+32.22%) Land $136,300 Building $285,100 |
| 2022 | $1,504.00 | $22,149 Land $6,637 Building $15,512 | $318,700 Land $95,500 Building $223,200 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective October 14, 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 LONGMONT serves 104,178 people · EPA ID CO0107485 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2025 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 564 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| NextLight Fiber | 10,000 / 10,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| CenturyLink DSL | 140 / 20 |
May also be available: AT&T, Rise Broadband, T-Mobile, TDS Telecom.
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