505 S 46th St, Boulder, CO 80305 Property Records

Boulder County property record for 505 S 46th St, Boulder, CO 80305

Property Summary

Property Type	Single Family Home
Details	3 bd · 1.75 ba · 2,040 sqft · built 1958
Lot Size	0.167 acres (7,286 sqft)
Owner	2 Individual Names on Record
Last Sale	$640,000 (Apr 2019)
Tax Bill	$4,948 (2025)
Deeds & Mortgages	Jan 2020 Mortgage Apr 2019 Sale & Line of Credit
Flood Zone	Zone X (minimal risk)
APN	`1577-08-1-02-038`

Property Details

APN / Parcel Number

Primary APN	`1577-08-1-02-038`
Alternative APNs	`R0011798` `0011798`

Interior

Bedrooms	3 Beds
Full Baths	1.75 Baths
Half Baths	1 Half Bath
Total Rooms	8 Rooms
Stories	1 Story
Building Area	2,040 sqft Living Area
Gross Area	2,370 sqft
1st Floor Area	1,020 sqft
Basement Area	1,020 sqft
Finished Basement	1,020 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1995
Architectural Style	Ranch
Exterior Material	Brick Veneer
Construction Type	Masonry / Concrete Block
Roof Material	Asphalt
Lot Area	7,286 sqft (0.167 acres)
Garage Type	Attached
Garage Area	330 sqft
Parking Spaces	1 Parking Space
Porch	Porch
Porch Area	300 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0011798
Street Address	505 S 46TH ST, A
City	BOULDER
State	CO
Zip	80305-6055
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 38 BLK 2 MARTIN ACRES 3
Legal Range	70
Legal Township	1S
Legal Section	05
Legal Subdivision	MARTIN ACRES 3 - BO
Legal Block	2
Legal Lot Number	38
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3000
Census Tract	12508

Owner

Source: Boulder County records, as of June 15, 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	505 S 46TH ST, BOULDER, CO 80305-6055
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Jan 14, 2020	Quit Claim Deed, Transfer BANK OF CO
Apr 3, 2019	Grant Deed, Transfer · Line of Credit BANK OF CO

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Apr 3, 2019 · Amount on Record
Deed Sale	Apr 3, 2019 · Amount on Record
Prior Sale	Oct 26, 1992 · Amount on Record
Deed Document Number	20193705470
Last Transfer Date	Jan 9, 2020
Transfer Doc	0003760476
Record Updated	Sep 20, 2026

January 2020: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	BOULDER CO
Recording Date	Jan 14, 2020
Property Address	505 S 46TH ST, BOULDER, CO 80305-6037
Document Number	0003760476
Instrument Date	Jan 9, 2020
Instrument	3760476
Transaction Type	Transfer
Record Updated	Jan 30, 2020
Title Company	LAND TITLE GUARANTEE

Transaction

Tax	$0.00
Additional	Quitclaim Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	505 S 46TH ST BOULDER CO 803056037, BOULDER, CO 80305-6037

Mortgage

Document Number	3760477
Date	Jan 14, 2020
Instrument	3760477

Lender

Name	BANK OF CO
Type	Bank
Address	JOHNSTOWN, CO 80534

Agreement

Amount	Amount Recorded
Term	360 Months
Due	Jan 13, 2050

April 2019: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	Apr 3, 2019
Property Address	505 S 46TH ST, BOULDER, CO 80305-6037
Document Number	0003705470
Instrument Date	Apr 2, 2019
Instrument	3705470
Transaction Type	Transfer
Record Updated	Apr 9, 2019
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Amount	Amount Recorded
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$64.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Sole Owner
Address	505 S 46TH ST BOULDER CO 803056037, BOULDER, CO 80305-6037

Mortgage

Document Number	3705471
Date	Apr 3, 2019
Instrument	3705471

Lender

Name	BANK OF CO
Type	Bank
Address	GRAND JUNCTION, CO 81501

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	120 Months
Due	Apr 2, 2029

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of June 15, 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Municipality	Boulder City
Unified School District	Boulder Valley School District RE-2 (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$55,550 (+8.8%) Land $28,710 Building $26,840	$816,900 (-) Land $422,200 Building $394,700
2025	$4,948.00 (+2.72%)	$51,057 (-12.87%) Land $26,388 Building $24,669	$816,900 (-6.6%) Land $422,200 Building $394,700
2023	$4,817.00 (+13.98%)	$58,599 (+31.09%) Land $31,363 Building $27,236	$874,600 (+35.98%) Land $468,100 Building $406,500
2022	$4,226.00	$44,702 Land $23,442 Building $21,260	$643,200 Land $337,300 Building $305,900

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.

Flood

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
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	5 in force

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.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 67% of the US · lower than 84% of Colorado
Wildfire Likelihood	0.04% annual chance
Exposure	Indirect within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 678 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.

Nearby Properties on S 46th St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures