4670 Portside Way, Boulder, CO 80301 Property Records

Boulder County property record for 4670 Portside Way, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	2 bd · 1.5 ba · 1,024 sqft · built 1980
Lot Size	0.037 acres (1,611 sqft)
Owner	Individual Name on Record
Last Sale	$325,000 (Sep 2021)
Tax Bill	$2,604 (2025)
Deeds & Mortgages	Dec 2021 Mortgage Sep 2021 Sale + 1 more
Flood Zone	Zone X (minimal risk)
APN	`1463-11-3-10-018`

Property Details

APN / Parcel Number

Primary APN	`1463-11-3-10-018`
Alternative APNs	`R0084006` `0084006`

Interior

Bedrooms	2 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	4 Rooms
Building Area	1,024 sqft Living Area
Gross Area	1,536 sqft
1st Floor Area	512 sqft
Upper Floors Area	512 sqft
Basement Area	512 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1980
Effective Year Built	Effective 1980
Architectural Style	Townhouse
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	1,611 sqft (0.037 acres)
Garage Type	Carport
Garage Area	378 sqft
Carport	Carport
Carport Area	378 sqft
Parking Spaces	1 Parking Space
Deck Area	378 sqft
Patio Area	478 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0084006
Street Address	4670 PORTSIDE WAY
City	BOULDER
State	CO
Zip	80301-3129
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SR
Legal Description	LOT 18 PORTAL ESTATES
Legal Range	70
Legal Township	1N
Legal Section	11
Legal Subdivision	PORTAL ESTATES - BOV
Legal Block	1
Legal Lot Number	18
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1005
Census Tract	12708

Owner

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	Individual Name on Record
Mailing Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Dec 28, 2021	Intrafamily Transfer, Transfer · Conventional Mortgage LOAN SIMPLE INC
Sep 14, 2021	Correction Deed
May 28, 2020	Grant Deed, Transfer HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 14, 2021 · Amount on Record
Deed Sale	Sep 14, 2021 · Amount on Record
Prior Sale	Sep 15, 1980 · Amount on Record
Deed Document Number	20213913795
Last Transfer Date	Dec 17, 2021
Transfer Doc	0003937114
Record Updated	Oct 29, 2026

December 2021: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	BOULDER CO
Recording Date	Dec 28, 2021
Property Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129
Document Number	0003937114
Instrument Date	Dec 17, 2021
Instrument	3937114
Transaction Type	Transfer
Record Updated	Jan 17, 2022
Title Company	CANTON TITLE, CANYON TITLE

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Tenants in Severalty
Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129

Mortgage

Document Number	0003937115
Date	Dec 28, 2021
Instrument	3937115

Lender

Name	LOAN SIMPLE INC
Type	Mortgage Company

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	361 Months
Due	Jan 1, 2052

September 2021: Correction Deed

Document Type	Correction Deed
Jurisdiction	BOULDER CO
Recording Date	Sep 14, 2021
Property Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129
Document Number	0003913795
Instrument Date	Aug 18, 2021
Instrument	3913795
Record Updated	Oct 1, 2021

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated

Transferred From (Grantor/Seller)

Name	Verified Name
Address	2061 RIDGELINE DR, 2061, MOBILE, AL 36695-4031

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129

May 2020: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	BOULDER CO
Recording Date	May 28, 2020
Property Address	4670 PORTSIDE WAY, BOULDER, CO 80301-3129
Document Number	0003786681
Instrument Date	May 26, 2020
Instrument	3786681
Transaction Type	Transfer
Record Updated	Jul 10, 2020
Title Company	HERITAGE TITLE COMPANY, HERITAGE TITLE CO.

Transaction

Amount	Amount Recorded
Tax	$33.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Joint Tenants with Right of Survivorship
Address	4670 PORTSIDE WAY BOULDER CO 803013129, BOULDER, CO 80301-3129

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$25,172 (-2.08%) Land $6,948 Building $18,224	$411,300 (-) Land $143,300 Building $268,000
2025	$2,604.00 (+10.11%)	$25,706 (-12.78%) Land $8,956 Building $16,750	$411,300 (-6.5%) Land $143,300 Building $268,000
2023	$2,365.00 (-1.05%)	$29,473 (+21.23%) Land $8,663 Building $20,810	$439,900 (+25.76%) Land $129,300 Building $310,600
2022	$2,390.00	$24,311 Land $6,582 Building $17,729	$349,800 Land $94,700 Building $255,100

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

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

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

Wildfire Risk	Moderate above 46% of the US · lower than 70% of Colorado
Wildfire Likelihood	0.07% annual chance
Exposure	None beyond 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 334 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Ayva Networks Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
Verizon Fixed Wireless	300 / 20
LiveWireNet Fixed Wireless	250 / 100
CenturyLink DSL	140 / 20

Cell Coverage

5G (outdoors only) and 4G LTE

Nearby Properties on Portside Way

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