About This Home

This 6-bedroom, 7-bathroom single family at 517 15th St in Boulder, CO is listed for $6,750,000 ($997 per sqft). Built in 2007, the home offers 6,769 sqft of living space on a 0.28 acres lot.

Key Features

  • Built in 2007
  • 0.28 acre lot
  • 2 stories
  • Fireplace

Property Details

2 stories
4 full, 1 half
2-car garage
2007

Amenities

FireplaceViewA/C
Listing Description

AUCTION: Bidder registration deadline: 4 November. Starting bids expected between $3M-$4M. Set just below the iconic Flatirons in the storied Chautauqua neighborhood, this 2008 residence by celebrated Boulder architect Harvey Hine, remodeled throughout in 2023, unites a restored 1914 stone cottage with a striking nautilus-shaped contemporary addition.

A soaring 23-foot entry with a dramatic cantilevered staircase introduces an expansive open layout where historic character and modern design converge, finished with the finest custom details throughout. Gently curved walls, vaulted ceilings, and a kitchen that opens to a private deck create seamless indoor-outdoor flow, while a main-level primary suite offers two walk-in closets and a private office.

Thoughtful landscaping ensures privacy, yet Chautauqua Park trails are just two blocks away and downtown Boulder dining is only minutes from the door.

Monthly Cost Estimate

$36,100/mo

20% down · 6.5% · 30 years

Principal$4,882
Interest$29,250
Insurance$1,969

Estimates only. Actual payments may vary.

Location

517 15th St

Boulder, CO 80302

Wellington Heights

Features & Amenities

Interior Features

Eat-in KitchenSeparate Dining RoomCathedral Ceiling(s)Open FloorplanPantryWalk-In Closet(s)Wet BarWasher/Dryer HookupKitchen IslandHigh Ceilings

Exterior Features

Sprinkler SystemBalcony

Property Details

Construction

Frame Stone Stucco

Views

Hills

Outdoor Features

PatioDeck

Heating

RadiantHeat Pump (Heating)

Cooling

Central Air

Appliances

Electric RangeDishwasherRefrigeratorWasherDryerMicrowaveFire Alarm

Questions & Answers

This 6-bedroom, 7-bathroom single family at 517 15th St is listed at $6,750,000 ($997/sqft). The estimated monthly payment is $36,101 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 2007, 0.28 acre lot, 2 stories, Fireplace. Interior Features: Eat-in Kitchen, Separate Dining Room, Cathedral Ceiling(s). Exterior Features: Sprinkler System, Balcony.

This property is listed by Donald Cicchillo.

DC

Donald Cicchillo

Agent at RE/MAX Alliance

Listed by RE/MAX Alliance · Broker phone: (877) 412-4811 · View on Broker Site · Broker website

MLS# 1070327· Source: IRES MLS· 18 days on PropertySimple

Copyright © 2026 IRES MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

517 15th St, Boulder, CO 80302

Open this listing in: