1125 Maxwell Avenue, Boulder, CO 80304

Boulder
Local realty services provided by:Better Homes and Gardens Real Estate Kenney & Company
1125 Maxwell Avenue,Boulder, CO 80304
$2,625,250
  • 4 Beds
  • 5 Baths
  • 3,252 sq. ft.
  • Single family
  • Active
Listed by: joe bennell
Office: the colorado group
MLS#:IR1067914
Source:ML

Price summary

  • Price:$2,625,250
  • Price per sq. ft.:$807.27

About this home

The Allen Residence. Built in 1922 on Boulder's historic Mapleton Hill, this Craftsman bungalow is a legally conforming duplex, income-ready from day one. The main home features original Douglas Fir floors, 6 panel doors, Craftsman casework, 3 beds, 2 3/4 baths, a covered front porch on tapered brick piers, and a skylit finished attic with charming flex space. Tucked below is a fully finished walk-out garden level apartment, a true second unit with its own private, entrance on the east side and separately metered is ready for a tenant, guests, or a standalone private suite. Out back, a detached 3-car garage (rare on this end of Mapleton Hill) is topped by a 612 SF studio currently with a half bath, convertible to full, with light and bright, living space under current Boulder zoning for a third income stream. RMX-1 zoning supports single-family, duplex, or triplex use across the property's two structures. The finished interior living space totals 3,252 SF, with an additional 374 SF of...

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Home facts

  • Year built:1922
  • Subdivision & Development:Mapleton Hill
  • Listing ID #:IR1067914

Rooms and interior

  • Bedrooms:4
  • Total bathrooms:5
  • Full bathrooms:3
  • Half bathrooms:1
  • Flooring:Wood
  • Kitchen Description:Dishwasher, Disposal, Eat-in Kitchen, Microwave, Oven, Refrigerator
  • Basement:Yes
  • Basement Description:Full, Walk-Out Access
  • Living area:3,252 sq. ft.

Heating and cooling

  • Cooling:Air Conditioning-Room
  • Heating:Hot Water

Structure and exterior

  • Roof:Composition
  • Year built:1922
  • Building area:3,252 sq. ft.
  • Lot area:0.1 Acres
  • Lot Features:Rolling Slope, Sprinklers In Front
  • Architectural Style:Cottage
  • Construction Materials:Block, Frame, Stucco
  • Exterior Features:Balcony, Deck, Patio
  • Levels:1 Story

Schools

  • High school:Boulder
  • Middle school:Casey
  • Elementary school:Whittier E-8

Utilities

  • Water:Public
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$2,625,250
  • Price per sq. ft.:$807.27
  • Tax amount:$14,768 (2025)

Features and amenities

  • Laundry features:Dryer, Washer
  • Amenities:Double Pane Windows, Skylight(s), Smoke Detector(s)

Parking

  • Total parking spaces:3
  • Garage:Yes
  • Garage spaces:3
MLS LogoBased on information submitted to the MLS GRID as of September 5, 2026 02:48 PM. 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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