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5 Beds
6 Baths
4,111 sqft

$4,975,000

661 Maxwell Ave, Boulder CO, 80304

Price per sqft$1,210.17
Built in1910
Property size4,111 sqft
Property typeResidential
Courtesy of RE/MAX of Boulder, Inc, Karolyn Merrill Listing Contact: 3034415642

Overview

Coming soon Oct 16, 2026

Listed Oct 16, 2026

Updated 5h ago

A rare find in Mapleton Hill! Beautifully remodeled down to the studs in 2020 and complemented by a brand-new $1,000,000 ADU, this unique home brings together historic charm, gorgeous modern finishes and exceptional flexibility.Filled with natural light, the home offers an inviting flow with spaces that feel both connected and comfortable. Exposed brick adds warmth and character, while hardwood floors and thoughtfully chosen finishes create a cohesive feel throughout. The custom kitchen is a standout, featuring Wolf appliances, a Sub-Zero refrigerator and a charming built-in corner table-the perfect gathering spot for morning coffee or a casual meal.The main level includes a spacious study, a bedroom, a full bath and a powder room, providing wonderful options for guests and working from home. An elegant staircase with custom treads and metal detailing leads upstairs to the primary suite, where a generous deck captures foothill views and beautiful sunsets. It's a lovely place to start the day or unwind in the evening.The walkout lower level expands the living space with a recreation room, two additional bedrooms and a three-quarter bath, offering room to spread out and host guests comfortably.Adding to this exceptional property is the brand-new ADU with high end finish, bringing another dimension to the home's versatility and appeal. Walk to the Mount Sanitas trails for a morning hike or head to Pearl Street for shopping, dining and all the energy of downtown Boulder. With its blend of timeless character, modern comfort and a coveted Mapleton Hill setting, 661 Maxwell captures the best of Boulder living and with the Sundance Film Festival coming to Boulder in 2027, this location offers even more to look forward to.The main house is 3048 sq ft. ADU 1063 with a separate entrance basement 576 sq ft (great for storage!)

$33,099/mo

Est. mortgage payment based on a $4,975,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
1070334

Interior Features

Bedrooms
5
Bathrooms
6
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
0.16 Acres

Other Property Details

Taxes
$15,843
Tax Frequency
Annually
View
Yes
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Listings courtesy of Information and Real Estate Services, LLC (IRES) as distributed by MLS GRID

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Based on information submitted to the MLS GRID as of 6:29 AM UTC on 10/10/2026. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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