Boulder, CO 80304 643 Mapleton Ave

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Presented By: Coldwell Banker Realty 02; 3032426012
  • MLS# 1044438
  • 09/25/2025
  • Request Tour
  • Request Info
  • Beds • 4
  • Baths • 3
  • SQFT • 3,926
  • Garage • 2

Home Details

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.
Presented By: Coldwell Banker Realty 02; 3032426012

Interior Features for 643 Mapleton Ave

Bedrooms

Bedroom 2 FeaturesWood Floor
Bedroom 3 Area240
Bedroom 3 FeaturesWood Floor
Bedroom 3 Length15
Bedroom 3 LevelUpper
Bedroom 3 Width16
Bedroom 4 Area180
Bedroom 4 FeaturesWood Floor
Bedroom 4 Length12
Bedroom 4 LevelMain
Bedroom 4 Width15
Primary Bedroom Area224
Primary Bedroom FeaturesWood Floor
Primary Bedroom Length14
Primary Bedroom Width16
Primary on Main144
Second Bedroom Length12
Second Bedroom LevelUpper
Second Bedroom Width12
Total Bedrooms4

Bathrooms

3/4 Baths1
Half Baths0
Primary Bathroom FeaturesLuxury Features Primary Bath
Total Baths3

Kitchen

Kitchen Area304
Kitchen FeaturesWood Floor
Kitchen Length19
Kitchen LevelMain
Kitchen Width16

Other Interior Features

LivingAreaSourceOther
Above Grade Finished Area3239
Air Conditioning Y/NYes
BasementPartially Finished, Walk-Out Access
Below Grade Finished Area687
Fireplace FeaturesFree Standing, 2+ Fireplaces, Gas, Living Room, Basement
Fireplace Y/NYes
FlooringWood Floors
Heating Y/NYes
Interior AmenitiesStudy 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 FeaturesWasher/Dryer Hookups, Main Level
Window FeaturesWindow Coverings, Wood Frames, Bay Window(s), Skylight(s)

Other Rooms

Dining Room Area12
Dining Room Area180
Dining Room FeaturesWood Floor
Dining Room LevelMain
Dining Room Width15
Kitchen Area304
Kitchen FeaturesWood Floor
Kitchen Length19
Kitchen LevelMain
Kitchen Width16
Living Room Area272
Living Room FeaturesWood Floor
Living Room Length17
Living Room LevelMain
Living Room Width16

General for 643 Mapleton Ave

AccessibilityLevel Lot, Main Floor Bath, Main Level Bedroom, Main Level Laundry
AppliancesGas Range/Oven, Self Cleaning Oven, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, Freezer, Disposal
Architectural StyleVictorian
Attached Garage Yes
CityBoulder
Construction MaterialsStone, Wood Shingle
CoolingCentral Air, Wall/Window Unit(s)
CountyBoulder
ElectricElectric, Xcel
Elementary SchoolWhittier
ExclusionsSeller's personal property.
Facing DirectionSouth
Full Baths2
Garage Spaces2
Garage Y/NYes
Gas Y/NNatural Gas, Xcel
HOANo
HeatingForced Air, Hot Water, Wood Stove, Zoned Heat, Radiant, Radiator, 2 or more Heat Sources
High SchoolBoulder
High School DistrictBoulder Valley Dist RE2
Land Lease Y/NNo
LevelsTwo
Living Area UnitsSquare Feet
Lot Size Square Feet6332
Lot Size UnitsSquare Feet
MLS AreaBoulder
Middle/Junior High SchoolCasey
New ConstructionNo
Other StructuresKennel/Dog Run
Patio/Porch FeaturesPatio, Deck, Enclosed
Pool FeaturesPrivate
Possible UseSingle Family
Primary Bedroom LevelUpper
Property Attached Y/NNo
Property ConditionNot New, Previously Owned
Property SubtypeResidential-Detached
Property TypeResidential
RoofComposition
Senior Community Y/NNo
SewerCity Sewer
Standard StatusActive
StatusActive
Stories Count2
Subdivision NameMapleton
Tax Annual Amount18826
Tax Year2024
UtilitiesNatural Gas Available, Electricity Available
ViewFoothills View
Virtual TourClick here
Year Built1900
ZoningRES

Exterior for 643 Mapleton Ave

Building Area Total3239
Covered Spaces2
Exterior AmenitiesGas Grill
FencingFenced
Horse Y/NNo
Lot FeaturesSidewalks, Lawn Sprinkler System, Corner Lot, Wooded, Level, Historic District
Lot Size Acres0.15
Lot Size Area6332
Parking FeaturesGarage Door Opener
Road Frontage TypeCity Street
Road Surface TypePaved
SpaYes
Water SourceCity Water, City of Boulder
Waterfront Y/NNo

Additional Details

Price History

Schools

High School Boulder High School
Middle School Casey Middle School
Elementary School Whittier Elementary School

Jon Holsten

Price $5,395,000
MLS#1044438
List Date 09/25/2025
Property Type Single Family
Phone 970.237.2752
Request Tour
Request Info
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