643 Mapleton Ave

Boulder, CO 80304

$5,395,000
Price
4
Beds
3,926 Sq. Ft.
$1,374 / Sq. Ft.
3,926
Sq. Ft.
$1,374
per Sq. Ft.
Listed By CompassVirtual Tour
Listed By CompassVirtual Tour
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Description

Seller Financing Available. The beautifully preserved past meets the exciting present in this carefully updated and diligently maintained historic Mapleton Hill home. This fine Boulder 4BD/3BA landmark awaits its next generation of lucky residents with an expansive modernized layout, a wealth of original and period-appropriate architectural details, and phenomenal poolside outdoor space. Built in 1895, The Law House is a Gothic Revival masterpiece built from stone quarried from Mt. Sanitas. Inside,...Seller Financing Available. The beautifully preserved past meets the exciting present in this carefully updated and diligently maintained historic Mapleton Hill home. This fine Boulder 4BD/3BA landmark awaits its next generation of lucky residents with an expansive modernized layout, a wealth of original and period-appropriate architectural details, and phenomenal poolside outdoor space. Built in 1895, The Law House is a Gothic Revival masterpiece built from stone quarried from Mt. Sanitas. Inside, you'll find tall tin ceilings, original fir floors, stained glass windows and exceptional millwork paired with thoughtfully selected lighting, windows and doors, Cleveland Art and Antiques handblown light fixtures and Sonos speakers. A charming covered porch and gracious foyer open to a sun-kissed layout perfect for peaceful relaxation and lavish entertaining, including a fireplace living room, elegant formal dining room and a stately library with breathtaking woodwork, a Murphy bed and a hidden passageway to both the lower and upper levels. The open gourmet kitchen boasts a skylight, custom cabinetry, honed raw-edge Australian granite and upscale appliances, while an adjacent guest bath and laundry room add convenience. Grill masters will love the large deck's Lynx summer kitchen. Below, the newer saltwater jetted pool spa is surrounded by manicured gardens and tall trees for optimal privacy. A handsome fir staircase leads to the upper-level private quarters, including a luxurious owner's suite with a spa bath and walk-in closet. Two secondary bedrooms & a full bath complete the top floor, while the walkout basement provides a vast footprint for media room, home gym & game room use. Completely remodeled in 2006, the home includes upper-level HVAC and mini-split/radiant heat on the main and lower levels. Plans are available for a primary bathroom and closet remodel and a basement expansion with a depth increase. Coveted Mapleton Hill Historic District close to EVERYTHING.

Listing Agent

  1. Patrick Brown

    Patrick Brown

    Listing Agent

    Compass

    p.brown@compass.com

    P: (303)-242-6012

    CallTextEmail

Amenities

  • Air Conditioning
  • Attached Garage
  • Common Outdoor Space
  • Dryer
  • Forced Air
  • Garage
  • Gym
  • Laundry in Building
LISTING UPDATED: 11/12/2025 03:34 PM

Property Details for 643 Mapleton Avenue

StatusActive
MLS #1044438
Days on Compass74
Taxes$18,826 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential-Detached
Year Built1900
Lot Size0.15 AC / 6,332 SF
CountyBoulder County

Location

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Building Information for 643 Mapleton Avenue

Stories2Year Built1900Building Size-Lot Size0.15 AC / 6,332 SF

Payment Calculator

$28,227 per month

30 year fixed, 6.28% Interest

Principal and Interest

$26,659

Property Taxes

$1,569

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 643 Mapleton Avenue

Summary
Location and General Information
  • Road Access 2: City Street
  • Longitude and Latitude: -105.28751, 40.02082
  • Latitude: 40.02
  • Longitude: -105.29
  • Elementary School District: Boulder Valley Dist RE2
  • Middle Or Junior School District: Boulder Valley Dist RE2
Parking
  • Garage SqFt: 351
  • Garage Type 1: Yes
  • # of Garage Spaces 1: 2
  • # of Garage Spaces 3: Yes
  • Parking Features: Garage Door Opener
Taxes and HOA Information
  • Tax Information: No
  • Tax Year: 2024
  • HOA Transfer Fee: No
  • HOA 2 Transfer Fee: No
  • Has Association Fee: No
  • Has Association 2 Fee: No
  • Has Association Reserve: No
  • Has Association 2 Reserve: No
  • Tax Annual Amount: $18,826
  • Parcel Number: R0008802
Property
Lot Information
  • Lot Improvements: Sidewalks, Lawn Sprinkler System, Corner Lot, Wooded, Level, Historic District
  • Lot Size Area: 6,332.00
  • Lot Size Units: Square Feet
  • Has Irrigation Water Rights: No
  • Has Improvements: No
  • Vegetation: Wooded
Property and Assessments
  • Total Finished Area Source: Other
  • Total Finished Area Units: Square Feet
  • Living SqFt: 3239
  • Above Grade Finished Area Units: Square Feet
  • Sq Ft Apx: 687
  • Below Grade Finished Area Units: Square Feet
  • Total Finished Area: 3239
  • Location Description 2: No
  • Pano Url Position: 1
  • Are Ditches Active: No
  • Security Features: Smoke Detector(s), Fire Alarm
  • New Construction YN: No
  • Property Styles: 2
  • Levels: Two
  • Home Warranty YN: No
Utilities
  • Cooling: Yes
  • Utilities 1: No
  • Electric: Electric, Xcel
  • Gas: Natural Gas, Xcel
  • Sewer: City Sewer
  • Heating YN: Yes
Interior and Exterior Features
Exterior Features
  • Exterior Features: Gas Grill
  • Flooring: Wood Floors
  • Outdoor Features: Private
  • Pool Private YN: Yes
Interior Features
  • ViewYN: Yes
  • Interior Features: Study Area, Eat-in Kitchen, Separate Dining Room, Cathedral/Vaulted Ceilings, Open Floorplan, Walk-In Closet(s), Wet Bar, Kitchen Island, Steam Shower, 9ft+ Ceilings, Beamed Ceilings, Crown Molding
  • Laundry Features: Washer/Dryer Hookups, Main Level
  • Spa YN: Yes
  • Window Features: Window Coverings, Wood Frames, Bay Window(s), Skylight(s)
  • Other Equipment: Media Room
  • Fireplaces 1: Free Standing, 2+ Fireplaces, Gas, Living Room, Basement
  • All Bedrooms Conform: Yes
  • Full Bathrooms: 2
  • Half Bathrooms: 0
  • Bathrooms Total Decimal: 2.75
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 1
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Half Additional: 0
  • Baths Half Basement: 0
  • Baths Three Quarters Additional: 0
  • Baths Three Quarters Basement: 0
  • Baths Three Quarters Lower: 0
  • Baths Three Quarters Upper: 0
  • Main Level Bathrooms: 1
Living Room
  • Living Room Level: Main
  • Living Room Length: 17
  • Living Room Width: 16
  • Living Room Area: 272
  • Living Room Floor Covering: Wood Floor
Family Room
  • Has Family Room: No
Kitchen
  • Kitchen Level: Main
  • Kitchen Length: 19
  • Kitchen Width: 16
  • Kitchen Area: 304
  • Kitchen Floor Covering: Wood Floor
Dining Room
  • Dining Room Level: Main
  • Dining Room Length: 12
  • Dining Room Width: 15
  • Dining Room Area: 180
  • Dining Room Floor Covering: Wood Floor
Master Bedroom
  • Primary Bedroom Level: Upper
  • Primary Bedroom Length: 14
  • Primary Bedroom Width: 16
  • Primary Bedroom Area: 224
  • Primary Bedroom Floor Covering: Wood Floor
Bedroom 2
  • Bedroom 2 Level: Upper
  • Bedroom 2 Length: 12
  • Bedroom 2 Width: 12
  • Bedroom 2 Area: 144
  • Bedroom 2 Floor Covering: Wood Floor
Bedroom 3
  • Bedroom 3 Level: Upper
  • Bedroom 3 Length: 15
  • Bedroom 3 Width: 16
  • Bedroom 3 Area: 240
  • Bedroom 3 Floor Covering: Wood Floor
Bedroom 4
  • Bedroom 4 Level: Main
  • Bedroom 4 Length: 12
  • Bedroom 4 Width: 15
  • Bedroom 4 Area: 180
  • Bedroom 4 Floor Covering: Wood Floor
Laundry Room
  • Laundry Room Length: 7
  • Laundry Room Width: 7
  • Laundry Room Floor Covering: Wood
Rec Room
  • Rec Room Length: 19
  • Rec Room Width: 25
Study
  • Study Length: 12
  • Study Width: 15
  • Study Level: Main
  • Study Floor Covering: Wood
Rental
Rental Information
  • Lease Sq Ft Unit: Square Feet
  • Horse YN: No

Property History for 643 Mapleton Avenue

DateEvent & SourcePriceAppreciation
Jan 5, 2006

Sold (Public Record)

Public Record #172482997

$1,167,500—
DateEvent & SourcePrice
01/05/2006

Sold (Public Record)

Public Record #172482997

$1,167,500

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 643 Mapleton Avenue

Taxable ValueLand$100,151Additions$114,061Total$214,212
Tax Record2024$18,826 ($1,569 / month)
Home Facts
Beds4Baths2.8Total Finished SqFt3,239 SqFtAbove Grade Finished SqFt3,239 SqFtUnfinished Basement SqFt687 SqFtStories2Lot Size6,316 SqFtStyleSingle Family ResidenceYear Built1900Year Renovated1995Zoning1112CountyBOULDERAPN1461-25-4-04-002

Schools near 643 Mapleton Avenue

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Whittier Elementary School
Public - K to 5
Casey Middle School
Public - 6 to 8
Boulder High School
Public - 9 to 12
University Hill Elementary School
Public - PK to 5
Rating
School
Distance
Whittier Elementary School
PublicK to 5

Casey Middle School
Public6 to 8

Boulder High School
Public9 to 12

University Hill Elementary School
PublicPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 643 Mapleton Avenue, Boulder, CO 80304

643 Mapleton Avenue is a single family home for sale in Boulder, CO 80304. This property was listed for sale on September 25, 2025 by Compass, it's currently listed at $5,395,000. It has been on the market for a total of 74 days and was last sold on January 5, 2006. This listing's school district is Boulder Valley Re 2 School District. Nearby schools include Whittier Elementary School, Casey Middle School and Boulder High School. 643 Mapleton Avenue is a 4-bed, 3-bath, 3,926 sqft single family home built in 1900.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Based on information from one of the following Multiple Listing Services: REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS . Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by REColorado, Summit MLS Inc (a wholly owned subsidiary of Summit Association of REALTORS), Pikes Peak Association of Realtors, IRES, Grand Junction Area REALTOR, CREN, Vail Board of REALTORS and Grand County Board of REALTORS is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.