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$1,750,000 New to Website

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 1 Full Bath
  • 1 Partial Bath
  • 1,850 Sq. Ft.
  • 1 Car Garage
  • Updated 15 hours ago

Next open house:

Open House: 11:00 AM - 1:00 PM

Saturday 1/17 11:00 AM - 1:00 PM

4445 Grinnell Ave,Boulder, CO 80305

4445 Grinnell AveBoulderCO80305

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Join us at 4445 Grinnell Ave on:

  • Open House: 1:00 PM - 3:00 PM

    Sunday 1/18 1:00 PM - 3:00 PM

    4445 Grinnell Ave,Boulder, CO 80305
    4445 Grinnell AveBoulderCO80305
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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!

Full Property Details for 4445 Grinnell Ave

General

  • Price: $1,750,000
  • Taxes: $7,122 (2024)
  • Status: Active
  • Type: Single Family
  • Source: IRES
  • MLS ID: 1049514
  • Updated: 1/15/2026
  • Added to Site: 3 day(s) ago

Interior

  • Interior Features: Eat-In Kitchen, Separate Dining Room, Cathedral Ceiling(s), Open Floorplan, Skylights, Kitchen Island, High Ceilings
  • Fireplace: Yes
  • Fireplace(s): Electric
  • Appliances: Gas Range, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Microwave
  • Flooring: Wood

Rooms

Bathrooms

  • Total Bathrooms: 2
  • Full Bathrooms: 1
  • 3/4 Bathrooms: 1
  • Main Floor Baths: 1

Bedrooms

  • Total Bedrooms: 4

Exterior

  • Exterior Features: Sprinkler System
  • Porch/Patio/Deck: Patio, Deck

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 1
  • Garage Description: Attached

Location

  • Area: Boulder
  • County: Boulder
  • Subdivision: Table Mesa 2

School Information

  • School District: Boulder Valley Dist RE2
  • Elementary School: Bear Creek
  • Middle School: Southern Hills
  • High School: Fairview

Heating & Cooling

  • Cooling Type: Central Air
  • Heating Type: Forced Air, Radiant

Utilities

  • Gas: Yes
  • Gas: XCEL
  • Sewer: Public Sewer
  • Water: City
  • Utility Description: Natural Gas Available, Electricity Available

Structural Information

  • Architectural Style: Contemporary
  • Construction: Frame, Stone, Composition, Wood Siding
  • Exterior Const.: Frame, Stone, Composition, Wood Siding
  • Basement Desc.: None
  • Roof: Composition
  • Windows: Skylight(s)
  • Square Feet: 1,850
  • Sq. Ft. Source: Appraiser
  • Living Area: 1,850 Sq. Ft.
  • Year Built: 1965

Lot Features

  • Lot Size (Acres): 0.17
  • Lot Size (Sq. Ft.): 7,294
  • Frontage: City Street
  • Fence: Yes
  • Lot Features: House Faces South
  • Potential Use: Single-Family
  • Zoning: RL-1
  • Fencing (Description): Fenced

Green Features

  • Energy Efficient: Southern Exposure, Windows

Financial Considerations

  • Tax Amount: $7,122
  • Tax Year: 2024
  • Terms: Cash, Conventional, FHA, VA

Disclosures and Reports

  • Special Conditions: Private Owner
  • Exclusions: All personal property of the Seller except for the above mentioned inclusions.
  • Property ID: R0012765

Listed by The Agency - Boulder (720) 577-5503

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Listing agent

— 4445 Grinnell Ave —

  • The Agency - Boulder

    720-577-5503

3037173826

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 4445 Grinnell Ave

School District:Boulder Valley School District Re-2
NameGradesDistance
Mesa Elementary School, Boulder, CO
1575 Lehigh Street, Boulder, CO 80305
K-50.9 mi
Bear Creek Elementary School, Boulder, CO
2500 Table Mesa Drive, Boulder, CO 80305
K-51 mi
Southern Hills Middle School
1500 Knox Drive, Boulder, CO 80305
6-80.2 mi
Fairview High School
1515 Greenbriar Boulevard, Boulder, CO 80305
9-120.3 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 4445 Grinnell Ave Get Price Alerts and Save Property

Date
Details
Price
Change
Source
1/13/2026
Listed
$1,750,000
151.8%
MLS
6/29/2016
Sold
$695,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 4445 Grinnell Ave

Year
Property Taxes
Change
Tax Assessment
Change
2024
$7,122
2%
$81,043
-4%
2023
$6,999
37%
$84,728
43%
2021
$5,094
-5%
$59,181
3%
2022
$5,342
5%
$57,525
7%
2021
$5,094
11%
$53,618
—
2019
$4,596
4%
$53,618
5%
2018
$4,428
3%
$51,077
—
2017
$4,290
13%
$51,077
17%
2016
$3,789
6%
$43,772
—
2015
$3,588
9%
$43,772
14%
2014
$3,289
2%
$38,256
—
2013
$3,217
—
$38,256
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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*These costs are estimates, and the interest rates assume exceptional credit standing.

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Listed by The Agency - Boulder (720) 577-5503

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4445 Grinnell Ave, Boulder, CO 80305 (MLS# 1049514) is a Single Family property with 4 bedrooms, 1 full bathroom and 1 partial bathroom. 4445 Grinnell Ave is currently listed for $1,750,000 and was received on January 13, 2026. Want to learn more about 4445 Grinnell Ave? Do you have questions about finding other Single Family real estate for sale in Boulder? You can browse all Boulder real estate or contact a Coldwell Banker agent to request more information.

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