Flatirons

Flatirons House sits on a cherished family lot in Boulder’s Chautauqua neighborhood, where the owner grew up and now returns seasonally from the East Coast. Designed as a compact Passive House, it features single-floor living with a basement for visiting family. A simple, modern form with a single-pitch roof captures iconic Flatirons views and winter sun. Nestled in a lush garden originally cultivated by the owner's mother, the home is both a retreat and a quiet tribute to family legacy.

Completion

3,240 sf

PHIUS

Boulder, CO

2026

coming soon ach50

Type

Location

Living Space

Others

Heating and Cooling

Plumbing

Electric

Performance Consultant

Architect

NS Electric

HVAC Engineer: Dake Collaborative
Electrical Engineer: D.Keller Engineering
Concrete: Earthen Design
Drywall: Fossil Creek
Excavation: Earthen Design
Roofing: Boulder Roofing

PureHVAC

Structural Engineer

Size

Overview

Single Family Certified Passive House

3,240

TBD

R-60

Slab

Envelope R Value

R-36

Wall 

R-30

Floors

Windows