Check Availability
$1,750,000
● House - For Sale

4445 Grinnell Ave

Boulder, CO 80305
bedrooms
4 Beds
bathrooms
1 Bath
square feet
1,850 Ft²
$9,187
Est. Monthly

About This Property

Fully reimagined and beautifully updated, this South Boulder gem combines modern design, custom details, and an unbeatable location. The open floor plan features vaulted ceilings, white oak floors, and a transformative entryway addition with heated floors. Enjoy true Colorado living with seamless indoor-outdoor flow - an expansive deck with dining and lounge areas, an extended outdoor bar with flip out kitchen window, and professionally landscaped yard, perfect for entertaining or relaxing. Inside, every detail has been considered, from the chef's kitchen to the additional private office space perfect for remote work or creative pursuits. Located in one of Boulder's most coveted neighborhoods, you're just minutes from local schools, parks, and the iconic Flatirons - practically outside your front door.This move-in-ready home blends comfort, sophistication, and the quintessential Boulder lifestyle!
Unit Size
1,850 Ft²
Days on Market
-
Land Size
0.17 acres
Price per sqft
$946
Property Type
House
Property Taxes
$594
HOA Dues
-
Year Built
1965

Listed By

Greta Tesalona
The Agency - Boulder

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Last updated: 9 months ago (IRES MLS #1049514)

Price History

Date / Event Date Event Price
Jan 13, 2026 Listed by The Agency - Boulder $1,750,000
Listed by The Agency - Boulder
Jul 1, 2016 Sold
Sold
May 2, 2005 Sold
Sold

Property Highlights

Garage
Air Conditioning
Fireplace
Parking Details
Has Garage
Attached Garage
Garage Spaces: 1
Interior Details
Full Bathrooms: 1
Interior Features: Eat-in Kitchen, Open Floorplan, Kitchen Island, Study Area, Separate Dining Room, Cathedral/Vaulted Ceilings, 9ft+ Ceilings
Appliances: Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave, Gas Range/Oven
Flooring Type: Wood Floors
Laundry Features: Lower Level
Has Fireplace
Fireplace Features: Electric
Basement: None
Exterior Details
Square Footage: 1850
Square Footage Source: $0
Property Condition: Not New, Previously Owned
Architectural Style: Ranch, Contemporary/Modern
Year Built: 1965
Building Area Total: 986
Levels: One, Bi-Level
Window Features: Skylight(s), Double Pane Windows
Construction Materials: Stone, Wood Siding, Wood/Frame, Composition Siding
Patio and Porch Features: Patio, Deck
Lot Features: Lawn Sprinkler System
Lot Size Area: 7294
Lot Size Units: Square Feet
Lot Size Acres: 0.17
Lot Size Square Feet: 7294
Water Source: City Water, City of Boulder
Financial Details
Tax Annual Amount: $7,122
Utilities Details
Cooling Type: Central Air
Heating Type: Forced Air, Radiant
Sewer : City Sewer

Building Info

Overview

    General

  • Year Built: 1965
  • Effective Year Built: 1995
  • Building Count: 1
  • Total Rooms: 8
  • Bedroom Count: 4
  • Bathroom Count: 2
  • Full Bathrooms: 1
  • Partial Bathrooms: 2
  • Building Condition: 6
  • Building Quality: 10
  • Construction Type: 6
  • Building Style: 40
  • Exterior Walls Type: 16
  • Interior Walls Type: 3
  • Roof Shape Type: 0
  • Roof Cover Type: 15
  • Living Units: 1
  • Floor Cover: 0
  • Basement Type: 1
  • Basement Area: 864
  • Garage Type: 1
  • Garage Square Area: 288
  • Parking Space Count: 1
  • Patio Type: 20
  • Porch Type: 0
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 7,294
  • Total Building Area: 2,120
  • Gross Building Area: 2,120
  • Building Area: 1,832
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 0
  • Heating: 4
  • Heated Square Feet: 1,832
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: TABLE MESA 2
  • Land Acres: 0000000167
  • Standard Land Use Code: 1001
  • County Land Use Code: 1112
  • Legal Description 1: LOT 25 BLK 18 TABLE MESA 2

Neighborhood

  • School District Name: Boulder Valley School District RE-2
  • Census Tract: 012509

Geography

  • Assessors Map Reference: B24-B
  • Account Number: R0012765
  • Parcel: R0012765
  • Block: 18
  • Lot: 25
  • Meridian: SEC 08 TWN 1S RNG 70
  • Municipality: BOULDER
  • Latitude: 39.9771
  • Longitude: -105.244

    Address

  • Full Address: 4445 Grinnell Ave
  • Address - House Number: 4445
  • Address - Street Name: Grinnell
  • Address - Suffix Type: Ave
  • State: CO
  • City Name: Boulder
  • Carrier Code: C031
  • 4-Digit Zip Code: 6612
  • Zip Code: 80305

Valuation

    Tax

  • Tax Year: 2022
  • Tax Amount: $534,200
  • Tax Rate Code Area: 00-010

    Appraisal Valuation

  • Standard Deviation: 0.1691
  • Valuation Date: May 17, 2023
  • Confidence Score: 78
  • Final Value: 1,268,686
  • High Value: 1,483,317
  • Low Value: 1,054,055

    Market Valuation

  • Market Total Value: $1,264,600
  • Market Land Value: $936,000
  • Market Improvement Value: $328,600

    Assessments Valuation

  • Assessed Year: 2023
  • Assessed Total Value: $85,550
  • Assessed Land Value: $63,320
  • Assessed Improvements Value: $22,230

    Sales

  • Current Sale Contract Date: Jun 29, 2016
  • Current Sale Recording Date: Jul 01, 2016
  • Current Sale Price:
  • Current Sale Document Type: 71
  • Current Sale Input Document Number: 3527800
  • Previous Sale Recording Date: May 02, 2005
  • Previous Sale Contract Date: Apr 18, 2005
  • Previous Sale Amount: $390,000
  • Previous Sale Document Type: 71
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About South Boulder


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Frequently Asked Questions

When was property at 4445 Grinnell Avenue built and last sold?
The property at 4445 Grinnell Avenue was built in 1965 and last sold on Jun 29, 2016 for $695,000.
How much is this home worth?
The estimated value of the home located at 4445 Grinnell Avenue is $1,735,082.
What are some comparable homes to 4445 Grinnell Avenue?
There are currently no comparable homes to 4445 Grinnell Avenue.