Boulder - Garden House
Address: 3176 8th St Boulder CO 80304
Architect: bldg.collective
bldg.collective
bldg.collective was founded in 2009 with the purpose of approaching the practice of architecture in a unique way. We are a creative, committed, and client-oriented residential and commercial architecture firm that hopes to change the ways we think about design.
Always transparent in our design processes, we work towards achieving our clients’ goals while keeping their aesthetic, programmatic, sustainable, and budget aspirations front of mind.
Builder: Bauen Build
Structural: Lopez Smolens Associates - Ian Smith
MEP: NOCO Energy Solutions
Landscape: R Design
PHI rater: EMU Passive
ㅤ
SUMMARY
Built: 2026
Size: 3,400-SF
Type: New Build
Certifications: All-Electric, PHI Low E, HERS -6
Budget: 5% in performance premiums
ㅤ
NARRATIVE
This 3,400 sq ft Boulder, CO home is a certified Passive House, emphasizing energy efficiency, comfort, and sustainability. The custom build features an artist’s studio and thoughtful indoor-outdoor transitions to support an active lifestyle while providing a quiet, comfortable retreat. High-performance windows and a thermally efficient envelope ensure a serene, energy-optimized environment, perfectly blending modern aesthetics with functional living.
ㅤ
SPECIFICATIONS
WINDOWS
Spec: Enersign, Uf 0.12
ENVELOPE + INSULATION
Airtightness: 0.25 ACH50
Slab: R-33, XPS
Wall underground: R-46, XPS Exterior + Rockwool Batts
Wall aboveground: R-35, Dense-pack Cellulose + Rockwool Batts
Roof: R-65, Dense-pack Cellulose + Rockwool Batts
MECHANICAL
Heat Pump: Mitsubishi 4 zone ducted
ERV: Zehnder Q600
Water heater: Rinnai Heat Pump
SPAN panels: electrical panel with circuit level energy monitoring and control
ON-SITE RENEWABLES
PV: 9.46 kw
OTHER GREEN FEATURES
EV Charging
Induction Cooktop
Heat Pump Dryer
Sustainable landscaping
Green Roof
Featured Sponsors
What did you enjoy most about your visit?
You've already responded to this poll