4827 Thunderbird Dr, Boulder, CO 80303 Property Records

Boulder County property record for 4827 Thunderbird Dr, Boulder, CO 80303

Property Summary

Property Type	Apartment House (2-4 Units)
Details	107 bd · 91 ba · 70,467 sqft · built 1970
Lot Size	2.33 acres (101,601 sqft)
Owner	Company Name on Record
Last Sale	$433,500 (Jan 2008)
Tax Bill	$178,973 (2025)
Deeds & Mortgages	Apr 2018 Loan Modification
Flood Zone	Zone X (minimal risk)
APN	`1577-04-3-31-001`

Property Details

APN / Parcel Number

Primary APN	`1577-04-3-31-001`
Alternative APNs	`R0015620` `0015620`

Interior

Bedrooms	107 Beds
Full Baths	91 Baths
Total Rooms	198 Rooms
Units	182 Units
Building Area	70,467 sqft Living Area
Gross Area	72,260 sqft
1st Floor Area	24,250 sqft
Upper Floors Area	26,700 sqft
Basement Area	21,310 sqft
Finished Basement	19,517 sqft
Unfinished Basement	1,793 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1970
Effective Year Built	Effective 1984
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	101,601 sqft
Deck Area	7,890 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0015620
Street Address	4827 THUNDERBIRD DR
City	BOULDER
State	CO
Zip	80303-3840
Property Category	Commercial
Property Type	Residential > Multi-Unit > Apartment House (2-4 Units)
Legal Description	LOT 4 LESS R/W & EASEMENTS OF RECORD THUNDERBIRD 2 & TR 4519 BO TRACTS 4-1S-70 6 IMPS
Legal Range	70
Legal Township	1S
Legal Section	04
Legal Subdivision	THUNDERBIRD 2 - BO
Legal Tract	4519,4
Legal Block	1
Legal Lot Number	4
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1015
Census Tract	12511

Owner

Source: Boulder County records, as of July 9, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Company Name on Record
Mailing Address	6255 HABITAT DR, 3005, BOULDER, CO 80301-3219
Owner Type	Company
Vesting	Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jan 18, 2008 · Amount on Record
Deed Sale	Jan 18, 2008 · Amount on Record
Prior Sale	Jan 18, 2008 · Amount on Record
Deed Document Number	20082906003
Record Updated	Sep 20, 2026

April 2018: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	BOULDER CO
Property Address	4827 THUNDERBIRD DR, BOULDER, CO 80303-3840
Document Number	0003673253
Instrument Date	Apr 5, 2018
Transaction Type	Mortgage
Record Updated	Sep 6, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Limited Partnership
Address	4827 THUNDERBIRD DR BOULDER CO 803033840, BOULDER, CO 80303-3840

Mortgage

Document Number	0003673253
Date	Aug 27, 2018
Instrument	3673253

Lender

Name	KIEF-GARCIA MONIKA L L/TR (LT)

Agreement

Amount	Amount Recorded
Term	24 Months
Due	Aug 26, 2020

Interest

Rate	5.25%

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		$1,958,400 (+8.8%) Land $153,000 Building $1,805,400	$28,800,000 (-) Land $2,250,000 Building $26,550,000
2025	$178,973.00 (-6.62%)	$1,800,000 (-16.04%) Land $140,625 Building $1,659,375	$28,800,000 (-1%) Land $2,250,000 Building $26,550,000
2023	$191,660.00 (+47.47%)	$2,144,000 (+61.69%) Land $150,750 Building $1,993,250	$32,000,000 (+64.1%) Land $2,250,000 Building $29,750,000
2022	$129,962.00	$1,326,000 Land $153,000 Building $1,173,000	$19,500,000 Land $2,250,000 Building $17,250,000

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

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
Nearest Special Flood Hazard Area	Zone AE, within 100 ft
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 67 individual policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	174 units insured incl. 107 condo units
Nearby Flood Claims	107 (1982–2023)
Claims Outside the SFHA	83 of 107
Most Recent Claim	Sep 2023 · rainfall accumulation
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 89 claims

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	Moderate above 53% of the US · lower than 63% of Colorado
Wildfire Likelihood	0.1% annual chance
Exposure	Direct burnable vegetation

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 339 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
T-Mobile Fixed Wireless	100 / 20
AT&T Fixed Wireless	100 / 20