Active

$4,490,000

For sale

512 Ma••••• St (Sign up for 50 free credits to unlock)Boulder, CO 80302

4Beds

5Baths

5,048Sq Ft Living

10,019Sq Ft Lot

1903Year Built

Property Description

Perfectly located on one of Boulder's most idyllic streets, this exceptional home blends Victorian charm with luxurious modern amenities. The homes' traditional exterior gives way to a welcoming main level that features light-filled spaces, soaring ceilings, a formal dining room perfected for entertaining, and an array of spaces that welcome the outdoors in. The chef's kitchen features a new Sub-Zero fridge, Wolf range, granite topped island, and a walk-in pantry that makes organization easy. Don't miss the cleverly-designed under stair office with secret bookshelf, one of the many special touches that make this home so unique.Upstairs the primary suite features two fireplaces, a generous soaking tub and steam shower in the spa-like bath, soaring ceilings and mountain views. Two more light-filled bedrooms, two full baths and a dedicated laundry room complete the second floor. The lower level includes the large fourth bedroom with an en-suite bath, impressive ceiling height, an office, third living room, and an abundance of useful built-in storage. Step outside to a peaceful retreat of a backyard that includes a waterfall feature, plumbed-in BBQ, multiple outdoor patios, a two story playhouse, and an array of flowers and fruit trees. The separate backyard cottage with vaulted ceilings, a kitchenette, and powder bath creates the ultimate flexibility for a gym, home office, or guest house. The two car garage with epoxy floors and additional storage adds to the comfort and convenience of the home.Walk to trails, downtown restaurants, and all the best that Boulder has to offer. This is Boulder living at its best

Property Facts & Features

Property Type: Single Family
Status: Active
Listed: Aug 17, 2026
Price per Sq Ft: $889/sqft
ZIP Code: 80302
Full Baths: 4
Half Baths: 1
Stories: 2
Garage: 2 spaces
Parking: Attached
Heating: Forced Air
Cooling: Central Air
Construction: Frame, Brick
Style: Victorian
Property Tax (2025): $27,327/yr
Assessed Value: $286,607
Last Sold: $4,650,000 · Nov 23, 2025
Neighborhood: Flatirons
County: Boulder
School District: Boulder Valley Re 2 School District

Estimated Value

$4,409,401Range $3,913,400 to $5,294,600

Automated estimate. Not an appraisal.

Features & Amenities

Bedrooms

Bedrooms: 4
Primary Bedroom Dimensions: 15' x 27'
Primary Bedroom Level: Upper
Primary Bedroom Description: Hardwood

Bathrooms

Total Bathrooms: 5
Full Bathrooms: 4
1/2 Bathrooms: 1

Farm Info

Irrigation Water Rights: No

Land Info

Lot Description: Wooded, Deciduous Trees, Level, Paved, Curbs, Gutters, Sidewalks
Lot Size Acres: 0.23
Lot Size Square Feet: 10019

Utilities

Electric: Xcel
Sewer: Public Sewer
Natural Gas Available
Electricity Available
Water Source: Public

Appliances

Gas Range
Double Oven
Refrigerator
Bar Fridge
Washer
Dryer
Microwave
Gas Bar-B-Q
Water Purifier Owned
Fire Alarm

Other Rooms

Basement Features: Full, Partially Finished, Built-In Radon, Sump Pump

Home Features

View: Hills

Interior Features

Eat-in Kitchen
Separate Dining Room
Open Floorplan
Pantry
Wood Windows
Walk-In Closet(s)
Washer/Dryer Hookup
Kitchen Island
High Ceilings
Flooring: Wood

Garage and Parking

Attached Garage: Yes
Garage Spaces: 2
Garage Description: Attached
Parking Features: Attached

Kitchen and Dining

Kitchen Description: Hardwood
Kitchen Dimensions: 13' x 14'
Kitchen Level: Main

School Information

Elementary School: Flatirons
High School: Boulder
High School District: Boulder Valley Dist RE2
Middle School: Manhattan
School District: Boulder Valley Dist RE2

Heating and Cooling

Cooling Features: Central Air
Fireplace Features: Two or More, Gas, Living Room, Family Room, Bedroom
Heating Features: Forced Air
Heating: Yes
Number of Fireplaces: 2

Other Property Info

Annual Tax Amount: 27328
Source Listing Status: Active
County: Boulder
Tax Year: 2025
Exclusions: Seller property and staging (including window coverings)
Possible Use: Single Family
Area: Boulder
Source Neighborhood: Highland Lawn
Parcel Number: R0000453
Subdivision: Highland Lawn
Zoning: RES
Property Subtype: Single Family Residence

Homeowners Association

Association: No
Calculated Total Monthly Association Fees: 0

Building and Construction

Total Square Feet Living: 5048
Year Built: 1903
Above Grade Finished Area: 3238
Construction Materials: Frame, Brick
Levels: Two
Living Area Source: Assessor
Property Age: 123
Property Attached: No
Property Condition: Not New, Previously Owned
Roof: Composition
Levels or Stories: Two
Total Above Grade Sqft Area: 3238
Total Area Sqft: 4348
Architectural Style: Victorian

Price & Event History

Date	Event	Price	$/Sq Ft
Oct 7, 2026	Listing removed	$4,985,000	$1,017
Oct 5, 2026	Price Changed	$4,490,000	$889
Aug 17, 2026	Listed	$4,650,000	$921
Nov 20, 2025	Sold	$4,650,000	$948
Sep 30, 2025	Listed	$4,750,000	$969
Sep 25, 2025	Listed	$4,750,000	$969
Jun 17, 2019	Sold	$3,480,000	$747
Oct 28, 2012	Sold	$2,250,000	$483
Aug 13, 2012	Listed	$2,350,000	$505
May 26, 2008	Sold	$2,050,000	$471
Jan 21, 2007	Sold	$700,000	$161
Apr 26, 1982	Sold	$85,000	$20

Property Tax History

Year	Tax	Assessed	Land	Building	Market
2025	$27,327	$286,607	$93,644	$192,963	$4,585,700
2024	$25,583	$286,607	$93,644	$192,963	$4,585,700
2023	$25,139	$291,108	$94,336	$200,457	$4,399,900
2022	$22,558	$242,917	$71,335	$171,582	$3,495,200
2021	$21,510	$249,907	$73,388	$176,519	$3,495,200
2020	$20,114	$231,082	$92,450	$138,632	$3,231,900
2019	$19,806	$231,082	$92,450	$138,632	$3,231,900
2018	$17,458	$201,369	$80,568	$120,801	$2,796,800
2017	$16,912	$201,369	$80,568	$120,801	$2,796,800
2016	$15,900	$183,677	$73,471	$110,206	$2,307,500
2015	$15,056	$183,677	$73,471	$110,206	$2,307,500
2014	$12,868	$149,679	$81,510	$68,169	$1,880,400

Nearby Schools

8/10
Flatirons Elementary School
Public · Elementary · Grades K-5
0.3 mi
9/10
Boulder High School
Public · High · Grades 9-12
0.8 mi
9/10
Manhattan Middle School Of The Arts And Academics
Public · Middle · Grades 6-8
3.4 mi
NR
Sacred Heart Of Jesus School
Private · Elementary, Middle · Grades K-8
0.9 mi