436 Concord Ave, Boulder, CO 80304 Property Records

Boulder County property record for 436 Concord Ave, Boulder, CO 80304

Property Summary

Property Type	Multi-Family Dwellings
Details	4 bd · 2 ba · 1,772 sqft · built 1905
Lot Size	0.133 acres (5,803 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,010,000 (Nov 2016)
Tax Bill	$11,157 (2025)
Deeds & Mortgages	Feb 2024 Line of Credit Jun 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1461-25-1-01-004`

Property Details

APN / Parcel Number

Primary APN	`1461-25-1-01-004`
Alternative APNs	`R0007617` `0007617`

Interior

Bedrooms	4 Beds
Full Baths	2 Baths
Total Rooms	11 Rooms
Units	2 Units
Stories	2 Stories
Building Area	1,772 sqft Living Area
1st Floor Area	1,044 sqft
Upper Floors Area	728 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1905
Effective Year Built	Effective 1975
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	5,803 sqft (0.133 acres)
Garage Type	Detached
Garage Area	399 sqft

Exterior Amenities

Porch	Porch
Porch Area	200 sqft
Deck Area	200 sqft
Patio Area	312 sqft
Total Buildings	2 Buildings

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0007617
Street Address	436 CONCORD AVE
City	BOULDER
State	CO
Zip	80304-3919
Property Category	Residential
Property Type	Residential > Multi-Unit > Multi-Family Dwellings
Legal Description	LOT 6 & W 15 FT LOT 5 BLK 10 MAXWELL AMENDED
Legal Range	71
Legal Township	1N
Legal Section	25
Legal Subdivision	MAXWELLS - BO
Legal Block	10
Legal Lot Number	6
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	4
Census Block	4003
Census Tract	12101

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	2 Individual Names on Record
Mailing Address	436 CONCORD AVE, BOULDER, CO 80304-3919
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Feb 21, 2024	Deed of Trust, Mortgage · Line of Credit ALPINE BANK
Jun 5, 2020	Deed of Trust, Mortgage · Conventional Mortgage CHERRY CREEK MORTGAGE CO INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 1, 2016 · Amount on Record
Deed Sale	Nov 1, 2016 · Amount on Record
Prior Sale	Apr 8, 2016 · Amount on Record
Deed Document Number	20163554317
Prior Transfer Date	Apr 22, 2016
Prior Transfer Doc	0003514811
Record Updated	Oct 29, 2026

February 2024: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	436 CONCORD AVE, BOULDER, CO 80304-3919
Transaction Type	Mortgage
Record Updated	Mar 22, 2024

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	438 CONCORD AVE, BOULDER, CO 80304-3919

Mortgage

Document Number	0004037415
Date	Feb 21, 2024
Instrument	4037415

Lender

Name	ALPINE BANK
Type	Bank
Address	RIFLE, CO 81650

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	120 Months
Due	Feb 25, 2034

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

June 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	436 CONCORD AVE, BOULDER, CO 80304-3919
Transaction Type	Mortgage
Record Updated	Mar 31, 2022

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003789270
Date	Jun 5, 2020
Instrument	3789270

Lender

Name	CHERRY CREEK MORTGAGE CO INC
Type	Mortgage Company
Address	ENGLEWOOD, CO 80111

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	359 Months
Due	May 1, 2050

Tax Assessment & Valuation

Source: Boulder County assessment roll, as of September 18, 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		$122,556 (+4.73%) Land $96,961 Building $25,595	$1,872,300 (-) Land $1,495,900 Building $376,400
2025	$11,157.00 (-0.1%)	$117,019 (-12.02%) Land $93,494 Building $23,525	$1,872,300 (-5.69%) Land $1,495,900 Building $376,400
2023	$11,168.00 (+23.9%)	$133,008 (+37.02%) Land $101,786 Building $31,222	$1,985,200 (+39.07%) Land $1,519,200 Building $466,000
2022	$9,014.00	$97,070 Land $64,335 Building $32,735	$1,427,500 Land $946,100 Building $481,400

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	15 units insured incl. 9 condo units
Nearby Flood Claims	2 (2013)
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.

Wildfire

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

Wildfire Risk	High above 77% of the US · above 78% of Colorado
Wildfire Likelihood	0.4% annual chance
Exposure	Indirect within ember reach
Adjoins Burnable Land	Yes

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 684 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
LiveWireNet Fixed Wireless	250 / 100
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20

May also be available: Verizon.

Nearby Properties on Concord Ave

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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