# 517 15th St, Boulder, CO 80302 > **TL;DR:** 6bd/7ba single family, $6,750,000 ($997/sqft), built 2007, 6,769 sqft. > Fireplace, View, A/C, 2-car garage. Est. $36,101/mo. Listed 19 days. ## Property at a Glance | Attribute | Value | |-----------|-------| | Price | $6,750,000 | | Price/sqft | $997 | | Bedrooms | 6 | | Bathrooms | 4 full, 1 half | | Square Feet | 6,769 | | Year Built | 2007 | | Lot Size | 12,197 sqft (0.28 acres) | | Stories | 2 | | Garage | 2-car | | Property Type | Single Family (Single Family Residence) | | Status | Active | | Days on Market | 19 | ## Why This Home Stands Out - **Views** - Hills ## Estimated Monthly Costs | Category | Amount | |----------|--------| | Principal & Interest (20% down, 30-year at 6.5%) | $34,132 | | Estimated Insurance | $1,969 | | **Total** | **$36,101** | ## Nearby Schools - **Elementary:** Creekside - **Middle:** Manhattan - **High:** Boulder ## Key Amenities - Fireplace - View - A/C - 2-car garage ## Property Highlights - Built in 2007 - 0.28 acre lot - 2 stories - Fireplace ## Description ### Agent 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. ## Location - **Address:** 517 15th St, Boulder, CO 80302 - **County:** Boulder - **Neighborhood:** Wellington Heights - **Coordinates:** 39.998672, -105.274066 - **Google Maps:** https://www.google.com/maps?q=39.998672,-105.274066 ## Virtual Tour & Media - **Video Tour:** https://www.listingsmagic.com/sps/tour-slider/index.php?property_ID=286633 ## Listing Agent - **Name:** Donald Cicchillo - **Brokerage:** RE/MAX Alliance - **Broker Phone:** (877) 412-4811 - **Listing URL:** [View original listing](https://www.realtor.com/realestateandhomes-detail/517-15th-St_Boulder_CO_80302_M12853-12341?f=listhub&s=IRESCO&m=1070327&c=propsimple) ## Photos ![517 15th St - Photo 1](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2267764025r.jpg) ![517 15th St - Photo 2](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2267764025r.jpg) ![517 15th St - Photo 3](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1698694995r.jpg) ![517 15th St - Photo 4](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1698694995r.jpg) ![517 15th St - Photo 5](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4097764068r.jpg) ![517 15th St - Photo 6](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f610193378r.jpg) ![517 15th St - Photo 7](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f610193378r.jpg) ![517 15th St - Photo 8](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3812957349r.jpg) ![517 15th St - Photo 9](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3812957349r.jpg) ![517 15th St - Photo 10](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2987213269r.jpg) ![517 15th St - Photo 11](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f868832600r.jpg) ![517 15th St - Photo 12](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f59040483r.jpg) ![517 15th St - Photo 13](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4170305102r.jpg) ![517 15th St - Photo 14](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4170305102r.jpg) ![517 15th St - Photo 15](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2228807914r.jpg) ![517 15th St - Photo 16](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2799547214r.jpg) ![517 15th St - Photo 17](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3056918402r.jpg) ![517 15th St - Photo 18](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3056918402r.jpg) ![517 15th St - Photo 19](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f638676723r.jpg) ![517 15th St - Photo 20](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3555716592r.jpg) ![517 15th St - Photo 21](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3555716592r.jpg) ![517 15th St - Photo 22](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f653678610r.jpg) ![517 15th St - Photo 23](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3019246626r.jpg) ![517 15th St - Photo 24](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3750498545r.jpg) ![517 15th St - Photo 25](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3750498545r.jpg) ![517 15th St - Photo 26](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2968900868r.jpg) ![517 15th St - Photo 27](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2968900868r.jpg) ![517 15th St - Photo 28](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1847680122r.jpg) ![517 15th St - Photo 29](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2529236620r.jpg) ![517 15th St - Photo 30](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2529236620r.jpg) ![517 15th St - Photo 31](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2441598643r.jpg) ![517 15th St - Photo 32](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2318531663r.jpg) ![517 15th St - Photo 33](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2318531663r.jpg) ![517 15th St - Photo 34](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3573190794r.jpg) ![517 15th St - Photo 35](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1164681259r.jpg) ![517 15th St - Photo 36](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f215414442r.jpg) ![517 15th St - Photo 37](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f215414442r.jpg) ![517 15th St - Photo 38](http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f55848871r.jpg) --- **MLS#:** 1070327 | **Updated:** 2026-10-25 **Source:** listhub *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.* [View on PropertySimple](https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f) --- ## Structured Data ```json { "@context": "https://schema.org", "@type": "RealEstateListing", "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#listing", "url": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f", "name": "517 15th St, Boulder, CO 80302", "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.", "image": [ "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2267764025r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1698694995r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4097764068r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f610193378r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3812957349r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2987213269r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f868832600r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f59040483r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4170305102r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2228807914r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2799547214r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3056918402r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f638676723r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3555716592r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f653678610r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3019246626r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3750498545r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2968900868r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1847680122r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2529236620r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2441598643r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2318531663r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3573190794r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1164681259r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f215414442r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f55848871r.jpg" ], "primaryImageOfPage": { "@type": "ImageObject", "url": "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2267764025r.jpg", "caption": "517 15th St - Boulder, CO" }, "datePosted": "2026-10-09", "dateModified": "2026-10-25T01:22:51.910Z", "mainEntity": { "@type": "Accommodation", "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#property", "name": "517 15th St, Boulder, CO 80302", "address": { "@type": "PostalAddress", "streetAddress": "517 15th St", "addressLocality": "Boulder", "addressRegion": "CO", "postalCode": "80302", "addressCountry": "US" }, "geo": { "@type": "GeoCoordinates", "latitude": 39.998672, "longitude": -105.274066 }, "image": [ "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2267764025r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1698694995r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4097764068r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f610193378r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3812957349r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2987213269r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f868832600r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f59040483r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f4170305102r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2228807914r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2799547214r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3056918402r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f638676723r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3555716592r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f653678610r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3019246626r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3750498545r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2968900868r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1847680122r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2529236620r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2441598643r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f2318531663r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f3573190794r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f1164681259r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f215414442r.jpg", "http://lh.rdcpix.com/0b01051ea845314d414c7763447de186l-f55848871r.jpg" ], "identifier": { "@type": "PropertyValue", "propertyID": "MLS", "value": "1070327" }, "accommodationCategory": "Single Family Residence", "numberOfBedrooms": 6, "numberOfBathroomsTotal": 7, "numberOfFullBathrooms": 4, "numberOfPartialBathrooms": 1, "floorSize": { "@type": "QuantitativeValue", "value": 6769, "unitCode": "FTK", "unitText": "square feet" }, "yearBuilt": 2007, "amenityFeature": [ { "@type": "LocationFeatureSpecification", "name": "Heating", "value": "Radiant, Heat Pump (Heating)" }, { "@type": "LocationFeatureSpecification", "name": "Cooling", "value": "Central Air" }, { "@type": "LocationFeatureSpecification", "name": "Appliances", "value": "Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Microwave, Fire Alarm" }, { "@type": "LocationFeatureSpecification", "name": "Construction Materials", "value": "Frame, Stone, Stucco" }, { "@type": "LocationFeatureSpecification", "name": "Views", "value": "Hills" }, { "@type": "LocationFeatureSpecification", "name": "Pool Features", "value": "Patio, Deck" }, { "@type": "LocationFeatureSpecification", "name": "Fireplace", "value": true }, { "@type": "LocationFeatureSpecification", "name": "Air Conditioning", "value": true }, { "@type": "LocationFeatureSpecification", "name": "View", "value": true } ], "additionalProperty": [ { "@type": "PropertyValue", "name": "Lot Size", "value": "0.28 acres" }, { "@type": "PropertyValue", "name": "Stories", "value": 2 }, { "@type": "PropertyValue", "name": "Garage Spaces", "value": 2 }, { "@type": "PropertyValue", "name": "Property Subtype", "value": "Single Family Residence" } ] }, "offers": { "@type": "Offer", "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#offer", "url": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f", "price": 6750000, "priceCurrency": "USD", "businessFunction": "http://purl.org/goodrelations/v1#Sell", "availability": "https://schema.org/InStock", "seller": { "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#agent" } }, "provider": { "@type": "Person", "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#agent", "name": "Donald Cicchillo", "worksFor": { "@type": "Organization", "@id": "https://www.propertysimple.ai/listing/517-15th-st-boulder-co-80302-2a8d4f18ef2149fd8ae9abe558b5dc3f#brokerage", "name": "RE/MAX Alliance", "telephone": "(877) 412-4811", "logo": { "@type": "ImageObject", "url": "http://lh.rdcpix.com/ff8080811784beeb01179e45458b00f4k-c572796898r.png" } } } } ```