39
$6,750,000
6 bd · 7 ba · 6,769 sqft
517 15th St, Boulder, CO
Donald Cicchillo · on 2 MLSs
Est. $45,274/mo$867/sqft · 39 days on Realty
5
Beds
6
Baths
8,066
Sqft
1941
Built
Nestled at the base of Boulder's iconic Flatirons, 770 Circle Drive occupies one of the city's most extraordinary residential settings. Behind private gates, this exceptionally secluded 1.29-acre estate commands spectacular 360-degree vistas spanning the Flatirons, Chautauqua, downtown Boulder, Folsom Field and the Boulder Valley beyond. Step outside to hundreds of miles of protected open space and celebrated trails for hiking, running and year-round adventure, while Pearl Street's acclaimed restaurants, boutiques and cultural attractions remain an easy walk away. Few properties offer such a remarkable balance of privacy, natural beauty and urban accessibility. Spanning 8,066 finished square feet, the residence was designed to embrace its breathtaking surroundings. Soaring ceilings and dramatic walls of glass fill the interiors with natural light and frame unforgettable views. Expansive living and dining rooms, a generous kitchen and inviting family room flow to multiple terraces and outdoor living spaces, creating an exceptional setting for everyday living and entertaining. The primary suite is a private retreat with a curved wall of glass, fireplace, sitting area, spa-inspired bath and panoramic mountain vistas. Above, an expansive rooftop terrace offers an extraordinary vantage point over the Flatirons, Chautauqua, downtown Boulder and surrounding valley. A fully equipped private apartment with its own kitchen, living area, bedroom and bath offers flexibility for multigenerational living, extended-stay guests, an au pair, caregiver or executive office. Originally built in 1941 and thoughtfully expanded over time, the residence blends architectural character with generous scale and the opportunity to enjoy as-is or personalize over time. 770 Circle Drive is a rare Boulder estate where exceptional privacy, iconic scenery, outdoor recreation and walkable urban living converge.
Listing agent
Patrick Brown
Courtesy of Compass - Boulder
(303) 242-6012
REcolorado · Listing RECIR1067849
Listing agent
Patrick Brown
Courtesy of brokerage not provided
(303) 242-6012
IRES MLS · Listing IRE1067849
Choose a source to show its complete, unblended listing record.
Showing REcolorado
$1,399,000
Estimated monthly payment
$45,274/mo
Loan amount $5,596,000. Estimate only — your actual rate and payment depend on credit, location, and lender.
2026 roll
IRES MLS
REcoloradoThis content last refreshed on 2026-10-12 09:22:50 UTC. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.
39
$6,750,000
6 bd · 7 ba · 6,769 sqft
517 15th St, Boulder, CO
Donald Cicchillo · on 2 MLSs
37$5,500,000
4 bd · 5 ba · 3,035 sqft
307 Labelle Rd, Boulder, CO
Marybeth Emerson · on 2 MLSs
Price Reduced35$5,900,000
5 bd · 6 ba · 8,479 sqft
1344 Weaver Dr & 470, Boulder, CO
The Bernardi Group · on 2 MLSs
25$4,995,000
4 bd · 4 ba · 3,791 sqft
855 Circle Dr, Boulder, CO
The Zach Zeldner Team · on 2 MLSs
Price Reduced43$6,495,000
4 bd · 5 ba · 4,410 sqft
9631 Mountain Ridge Pl, Boulder, CO
John Canova · on 2 MLSs
11$6,999,999
4 bd · 6 ba · 6,079 sqft
9573 Mountain Ridge Dr, Boulder, CO
Cari Higgins · on 2 MLSs





Rings at ½ mile and 1 mile. Basemap © OpenMapTiles © OpenStreetMap contributors.
Open the Boulder camera map1 license-plate reader mapped within ½ mile of this home. Nearest: 0.4 mi east. Operator named in the data: Boulder Police Department.
| Device type | Within ½ mi | Within 1 mi |
|---|---|---|
| License-plate readers | 1 | 3 |
| of which Flock Safety | 0 | 1 |
Community-reported via OpenStreetMap; may be incomplete. Data as of . © OpenStreetMap contributors (ODbL)
License-plate readers (ALPR) are fixed cameras that photograph passing vehicles and read their plates. Records are typically shared with the agency or association that operates the camera.
Flock Safety is a company whose plate-reader cameras are used by police departments, cities, HOAs and businesses. Its devices are usually solar-powered and pole-mounted.
Within 2 miles of this home: 39+ restaurants and cafés, 6 grocery stores, 39 parks and green spaces, and 30+ transit stops.
Place data from OpenStreetMap.
Chautauqua Dining Hall
Clematis Drive
Flagstaff House
Flagstaff Road
Alpine Modern Cafe
College Avenue
Chipotle
Mexican restaurant · College Avenue
Prime Nutrition
13th Street
Loving Cup
13th Street
Scrooge Maki
13th Street
Flower Pepper
Chinese restaurant · College Avenue
University Hill Market & Deli
13th Street
Boulder Farmers Market
13th Street
Whole Foods Market
Alpine Avenue
Sprouts Farmers Market
Arapahoe Avenue
Safeway
Arapahoe Avenue
India Bazaar
28th Street
Edward Sell Smith Park
Centennial Garden
Chautauqua Park
Baseline Road
Waterwise Garden
Sleepy Bear Playground
Beach Park
Euclid Avenue
Eben G. Fine Park
Community Garden
College Ave & 9th St
College Ave & 11th St
9th St & University Ave (Fs)
9th St & University Ave
Euclid Ave & 14th St
College Ave & 13th St
14th St & College Ave
Broadway & College Ave
School ratings (A+ to F) from HJN community data.
Flatirons Elementary School
KG-5 · Regular · Boulder Valley School District Re-2
163 students · 13.9:1 student–teacher
September School
6-12 · Regular
74 students · 3.4:1 student–teacher
University Hill Elementary School
PK-5 · Regular · Boulder Valley School District Re-2
405 students · 15.7:1 student–teacher
New Vista High School
9-12 · Regular · Boulder Valley School District Re-2
327 students · 17.8:1 student–teacher
Boulder High School
9-12 · Regular · Boulder Valley School District Re-2
1,939 students · 21.3:1 student–teacher
Williamsburg Academy of Colorado
6-12 · Regular · EDUCATION REENVISIONED BOCES
622 students · 30.8:1 student–teacher
Mapleton Early Childhood Center
PK-PK · Regular · Boulder Valley School District Re-2
68 students · 19.4:1 student–teacher
Sacred Heart of Jesus School
KG-8 · Regular
190 students · 11.5:1 student–teacher