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Perched atop the crest of one of Mapleton Hill's most desirable streets, 403 Mountain View has it all. Historic character, strong architecture and an unbeatable in-town setting give this home a presence that is immediately distinctive. Inside, original details are balanced by thoughtful updates, creating rooms that feel warm, collected and beautifully livable. A dramatic glass atrium brings exceptional light into the heart of the home and captures seasonal and mountain views, while generous living and dining spaces flow easily for both everyday life and entertaining. A private lower-level entrance creates an independent living arrangement with two bedrooms, a separate bath and generous living space, ideal for extended family, long-term guests, an au pair, or simply added privacy and flexibility. The primary suite is equally considered, with a beautifully appointed bath and steam shower, while three generous in-wall/eave storage areas on the upper level provide valuable additional storage.Outside, the home really comes into its own. Multiple porches and patios create places to gather, dine and unwind throughout the day, while the private pool and waterfall bring an effortless resort-like quality to the setting. An 8' x 10' garden/storage shed tucked behind the pool adds convenient additional storage. Seller has also secured City of Boulder Landmark Alteration Certificate approval for a proposed one-car garage and enclosed mudroom-an unusual and valuable opportunity in historic Mapleton Hill. Flatiron views, mature landscaping, an electric gate and 220V car charging station add both character and convenience. There is also one off-alley parking space at the rear of the property.And the location is next to impossible to beat: just moments from Pearl Street, downtown restaurants and shops, neighborhood cafes, Mt. Sanitas and some of Boulder's best trails. This is Mapleton Hill living in its most complete form-private, connected, architectural and distinctly Boulder.

DAYS ON MARKET 4 LAST UPDATED 9/18/2026
TRACT Mapleton Hill YEAR BUILT 1900
COMMUNITY Boulder COUNTY Boulder
STATUS Active PROPERTY TYPE(S) Single Family

SCHOOLS
Elementary School Whittier
Jr. High School Casey
High School Boulder


ADDITIONAL DETAILS
AIR Central Air
AIR CONDITIONING Yes
APPLIANCES Bar Fridge, Dishwasher, Dryer, Gas Range, Microwave, Refrigerator, Washer
AREA Boulder
BASEMENT None
CONSTRUCTION Frame, Stone
EXTERIOR Balcony
FIREPLACE Yes
HEAT Hot Water
HOA DUES |
INTERIOR Eat-in Kitchen, High Speed Internet, Kitchen Island, Natural Woodwork, Open Floorplan, Walk-In Closet(s)
LOT 6970 sq ft
LOT DESCRIPTION Paved, Rolling Slope, Wooded
LOT DIMENSIONS 7129
PARKING None
POOL Yes
POOL DESCRIPTION Private
SEWER Public Sewer
STORIES 3+
STYLE Victorian
SUBDIVISION Mapleton Hill
TAXES 20134
UTILITIES Natural Gas Available, Electricity Available, Cable Available
VIEW Yes
VIEW DESCRIPTION Hills
WATER Public
MORTGAGE CALCULATOR
   

TOTAL MONTHLY PAYMENT

0
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*Estimate only

SATELLITE VIEW



 
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Listing provided by Marybeth Emerson, The Agency - Boulder, 7203941997
Last updated: 9/22/26 12:22 AM PDT

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Information deemed reliable but not guaranteed by the MLS

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This IDX solution is (c) Diverse Solutions 2026.