4050 Nevis St, Boulder, CO 80301 Property Records

Boulder County property record for 4050 Nevis St, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	4 bd · 4.5 ba · 4,776 sqft · built 1999
Lot Size	0.223 acres (9,707 sqft)
Owner	2 Individual Names on File
Last Sale	$919,300 (May 2014)
Tax Bill	$11,495 (2025)
Flood Zone	Zone X (minimal risk)
APN	`1463-17-4-21-005`

Property Details

APN / Parcel Number

Primary APN	`1463-17-4-21-005`
Alternative APNs	`R0118666` `0118666`

Interior

Bedrooms	4 Beds
Full Baths	4.5 Baths
Half Baths	1 Half Bath
Total Rooms	10 Rooms
Stories	2 Stories
Building Area	4,776 sqft Living Area
Gross Area	5,612 sqft
1st Floor Area	1,755 sqft
Upper Floors Area	1,441 sqft
Basement Area	1,755 sqft
Finished Basement	1,580 sqft
Unfinished Basement	175 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1999
Effective Year Built	Effective 1999
Architectural Style	A-Frame
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	9,707 sqft (0.223 acres)
Garage Type	Attached
Garage Area	661 sqft
Parking Spaces	2 Parking Spaces
Porch	Porch
Porch Area	252 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0118666
Street Address	4050 NEVIS ST
City	BOULDER
State	CO
Zip	80301-6093
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOT 145 FOUR MILE CREEK FLG 2
Legal Range	70
Legal Township	1N
Legal Section	17
Legal Subdivision	FOUR MILE CREEK FLG 2 - BO
Legal Block	3
Legal Lot Number	145
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	3
Census Block	3009
Census Tract	12701

Owner

Source: Boulder County assessment roll, APN 1463-17-4-21-005, as of June 15, 2026 · Last verified June 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 File
Mailing Address	4050 NEVIS ST, BOULDER, CO 80301-6093
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	May 28, 2014 · Amount on Record
Deed Sale	May 28, 2014 · Amount on Record
Prior Sale	Jun 19, 2009 · Amount on Record
Deed Document Number	20143382115
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

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

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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$131,172 (+8.8%) Land $38,291 Building $92,881	$1,929,000 (-) Land $563,100 Building $1,365,900
2025	$11,495.00 (+8.6%)	$120,563 (-2.87%) Land $35,194 Building $85,369	$1,929,000 (+4.12%) Land $563,100 Building $1,365,900
2024	$10,585.00 (+1.77%)
2023	$10,401.00 (+21.41%)	$124,131 (+34.55%) Land $36,200 Building $87,931	$1,852,700 (+39.57%) Land $540,300 Building $1,312,400
2022	$8,567.00	$92,254 Land $32,679 Building $59,575	$1,327,400 Land $470,200 Building $857,200

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Boulder County (08013C), as of October 14, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 080130127013, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on Record median of 29 policies
Community Rating System	Class 5 (25% premium discount)
Nearby Flood Policies	29 in force
Nearby Flood Claims	5 (1995–2013)
Claims Outside the SFHA	3 of 5
Most Recent Claim	Sep 2013 · Severe Storms, Flooding, Landslides, And Mudslides
Claims by Event	Severe Storms, Flooding, Landslides, And Mudslides, Sep 2013 · 4 claims

Wildfire

Wildfire Risk	Moderate above 45% of the US · lower than 72% of Colorado
Wildfire Likelihood	0.1% annual chance
Exposure	Indirect within ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, 615 locations within half a mile, as of December 31, 2025 · Last verified October 2026

Provider	Max Down / Up (Mbps)
Ayva Fixed Wireless	2,500 / 2,500
Xfinity Cable	2,000 / 250
Live Wire Networks Fixed Wireless	250 / 100
Lumen Technologies DSL · Fiber in parts of the area	140 / 20

May also be available: AT&T, Verizon.

Cell Coverage

5G (outdoors only) and 4G LTE

Drinking Water

Source: EPA Safe Drinking Water Information System, water system CO0107152, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026

Water System	CITY OF BOULDER serves 166,080 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.