Completion date


home for retired couple. Live here all year around; not snowbirds.

Days per year Building is fully occupied:


Total gut rehab, affecting 99% of structure

Type of Construction Retrofit
Number of buildings 2
Floor area of each building 3,640
Bedrooms 1
Bathrooms 3.0
Stories 2
Conditioned Building Volume 32,544 cu ft
Conditioned Floor Area 3,640 sq ft
Unconditioned Floor Area 250 sq ft

Location and Climate Details

single-family residence

2021 Harriet Avenue
Minneapolis, MN 55405
United States
Location Type Urban
Climate Region Zone 6
Lat. / Long. POINT (-93.2851629 44.9619735)
Elevation 550 ft


Site conditions:
preexisting structure(s)
Site description:

Typical tired old urban house on typical urban plot (40x 120)

Materials and Design Strategy


Flooring and millwork were regionally sourced (Wisconsin)
low-VOC paints
wallboarding that absorbs formaldehyde

Special architectural measures:

modest passive solar--extended eaves
solar heat gain/loss film on windows optimized for window location

Indoor Environment Description:
no added urea to kitchen cabinetry wallboarding designed to absorb formaldehyde active radon venting --collected in sump, vented through roof continuous airflow into house via ERV, with heat exchange.