4603 Greylock St, Boulder, CO 80301 Property Records

Boulder County property record for 4603 Greylock St, Boulder, CO 80301

Property Summary

Property Type	Single Family Home
Details	4 bd · 2.25 ba · 1,835 sqft · built 1975
Lot Size	0.319 acres (13,897 sqft)
Owner	2 Individual Names on Record
Last Sale	$502,000 (Jul 2015)
Tax Bill	$5,110 (2025)
Deeds & Mortgages	Aug 2026 Line of Credit Oct 2020 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`1465-07-3-02-008`

Property Details

APN / Parcel Number

Primary APN	`1465-07-3-02-008`
Alternative APNs	`R0039200` `0039200`

Interior

Bedrooms	4 Beds
Full Baths	2.25 Baths
Half Baths	2 Half Baths
Total Rooms	9 Rooms
Stories	1 Story
Building Area	1,835 sqft Living Area
Gross Area	4,153 sqft
1st Floor Area	1,835 sqft
Basement Area	1,835 sqft
Interior Walls	Wallboard/Drywall

Exterior

Year Built	Built 1975
Effective Year Built	Effective 1975
Architectural Style	Ranch
Exterior Material	Wood Shingle
Construction Type	Frame
Roof Material	Asphalt
Lot Area	13,897 sqft (0.319 acres)
Garage Type	Attached
Garage Area	483 sqft
Parking Spaces	2 Parking Spaces
Patio Area	140 sqft

Utilities, Heating & Cooling

Cooling System	Central
Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0039200
Street Address	4603 GREYLOCK ST
City	BOULDER
State	CO
Zip	80301-4206
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	SR
Legal Description	LOT 21 BLK 2 HEATHERWOOD 6
Legal Range	70
Legal Township	1N
Legal Section	12
Legal Subdivision	HEATHERWOOD 6 - BOV
Legal Block	2
Legal Lot Number	21
Jurisdiction	BOULDER CO
Township / Civil Division	BOULDER
Census Block Group	1
Census Block	1013
Census Tract	12709

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	4603 GREYLOCK ST, BOULDER, CO 80301-4206
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Joint Tenants

Deeds, Mortgages & Sale History

Date	Document
Aug 24, 2026	Deed of Trust, Mortgage · Line of Credit ELEVATIONS CREDIT UNION
Oct 20, 2020	Deed of Trust, Mortgage · Conventional Mortgage PARAMOUNT RESIDENTIAL MORTGAGE GROUP INC

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Jul 9, 2015 · Amount on Record
Deed Sale	Jul 9, 2015 · Amount on Record
Prior Sale	Oct 17, 1975 · Amount on Record
Deed Document Number	20153458559
Record Updated	Oct 29, 2026

August 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Recording Date	Aug 24, 2026
Property Address	4603 GREYLOCK ST, BOULDER, CO 80301-4206
Document Number	0004144884
Instrument Date	Aug 12, 2026
Instrument	20264144884
Transaction Type	Mortgage
Record Updated	Sep 9, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	4603 GREYLOCK ST, BOULDER, CO 80301-4206

Mortgage

Document Number	0004144884,
Date	Aug 24, 2026
Instrument	20264144884

Lender

Name	ELEVATIONS CREDIT UNION

Agreement

Type	Line of Credit
Amount	Amount Recorded
Term	240 Months
Due	Sep 1, 2046

Interest

Max Rate	-1%

October 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	BOULDER CO
Property Address	4603 GREYLOCK ST, BOULDER, CO 80301-4206
Transaction Type	Mortgage
Record Updated	Feb 5, 2021
Title Company	HOMESTEAD TITLE & ESCROW

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0003825586
Date	Oct 20, 2020
Instrument	3825586

Lender

Name	PARAMOUNT RESIDENTIAL MORTGAGE GROUP INC
Type	Mortgage Company
Address	CORONA, CA 92879

Agreement

Type	Conventional Mortgage
Amount	Amount Recorded
Term	241 Months
Due	Nov 1, 2040

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		$50,633 (-0.55%) Land $23,215 Building $27,418	$814,600 (-) Land $411,400 Building $403,200
2025	$5,110.00 (+9.66%)	$50,913 (-7.17%) Land $25,713 Building $25,200	$814,600 (-0.49%) Land $411,400 Building $403,200
2023	$4,660.00 (+16.27%)	$54,846 (+33.75%) Land $28,502 Building $26,344	$818,600 (+38.75%) Land $425,400 Building $393,200
2022	$4,008.00	$41,005 Land $20,871 Building $20,134	$590,000 Land $300,300 Building $289,700

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	3 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	Moderate above 56% of the US · above 40% of Colorado
Wildfire Likelihood	0.1% 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 286 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
CenturyLink DSL	140 / 20

May also be available: AT&T.

Nearby Properties on Greylock St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

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