Perfectly positioned in one of Boulder's most sought-after neighborhoods, Flagstaff, 505 Geneva Avenue captures the essence of Colorado luxury living with unobstructed Flatiron views, timeless design, and unmatched access to Boulder's outdoor lifestyle. Nestled just steps from premier hiking trails and the base of Flagstaff Mountain-beloved by cyclists-this exquisite residence combines privacy, elegance, and adventure in one breathtaking setting. Spanning 6,564 square feet across four levels, this architecturally refined home showcases soaring ceilings, natural light, and seamless indoor-outdoor connections. The main level features a spectacular primary suite with a spa-inspired bathroom, private deck for sunrise views, and a grand walk-in closet with a washer and dryer. The open-concept kitchen flows effortlessly into the dining and living spaces, all framed by dramatic Flatiron vistas and access to an expansive entertainment deck. A tranquil office loft above offers panoramic mountain views-perfect for remote work or creative inspiration. The lower levels include five additional bedrooms, four bathrooms, a spacious recreation room, and a stylish media lounge, plus room for pool or ping-pong and a fully equipped home gym for wellness enthusiasts. Sustainability meets sophistication with solar panels and dual Tesla Powerwalls, ensuring energy efficiency and dependable backup power. Surrounded by nature yet moments from downtown Boulder's dining, shopping, and culture, this home delivers the ultimate Colorado lifestyle. With iconic views, exceptional craftsmanship, and a coveted Flagstaff location, 505 Geneva Avenue is a true Boulder sanctuary-luxurious, peaceful, and built for those who live boldly.
Utility FeaturesNatural Gas Available, Electricity Available, Cable Available
SEWERCity Sewer
WATER SOURCECity Water, City of Boulder
Year Built1993
BasementFull, Walk-Out Access
FINISHED BASEMENT SIZE1360.0
ARCHITECTURAL STYLEContemporary/Modern
RoofMetal
EXTERIOR FEATURESBalcony
Parking FeaturesGarage Door Opener, Oversized
FencePartial
Lot FeaturesCorner Lot, Wooded
Garage spaces2
ViewFoothills View, City
CITYBoulder
SUBDIVISIONGeneva Park
COUNTYBoulder
AREABoulder
STATECO
SENIOR COMMUNITYNo
TAX AMOUNT27384.0
LATEST UPDATE2025-11-04T18:44:24.430Z
DAYS ON MARKET180
PRICE CHANGE(S)
$7,750,000 May 10, 2025
$7,250,000 Oct 22, 2025
CUMULATIVE DAYS ON MARKET180
Market Trends
New Properties On Market
35
Average Asking Price
$1,669,171
$140,886 Decrease In Avg Asking Price
Average Asking Price / Sq. Ft.
$685
$40 Increase In List Price/Sq. Ft.
Average Days On Market
15
32 Day
Decrease In Days On Market
Data as of Nov 23, 2025.
Remaining statistics above are calculated on activity within the period from Sep 01, 2025 to Oct 31, 2025.
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