Leawood Living
A Custom High Performance Home in Leawood, Kansas
It's all in the details.
Kala collaborated with SixTwentyOne to ensure high performance details were included from the beginning of the process on this custom build in Leawood. The result? A home that provides exceptional comfort, health, durability, and sustainability for decades longer than a traditionally built home.
The difference goes far beyond aesthetics; it’s intentionally included in every layer and detail, from the continuous exterior insulation in the airtight building envelope, to
Phius-certified windows and doors
with thermally-broken frames from Zola, to an ERV system that provides whisper-quiet mechanical ventilation.
Airtight (0.83 ACH50), vapor-open envelope assembly
A vapor-open (or vapor-permeable) wall assembly allows moisture that inevitably enters the wall (from leaks, air transport, or vapor diffusion) to dry out rather than being trapped. The goal is not to let unlimited vapor flow through, but to balance control + drying potential ensuring the long-term durability of your home.
Thermally-broken, triple-pane, NFRC-certified U-Value of 0.18 windows
Among the best in the world, these windows provide exceptional insulation while allowing for abundant natural light—keeping you warm in winter and cool in summer.
R-32 wall assembly with continuous exterior insulation
Exceptional insulation capacity for managing thermal transfer of energy keeping the inside of your home temperature stable in all conditions.
R-66 thermally-broken roof assembly
The roof is an area where energy often escapes. The assembly here provides excellent resistence to heat loss and gain, helping to keep your home comfortable all year long.
R-16 continuous slab and R-29 foundation wall insulation
Minimizes thermal energy transfer to and from the ground through the basement slab and walls ensuring the lowest part of your home is the same comfortable temperature as the rest of your home.
31 HERS index score
A HERS score is a ranking of a home's expected energy efficiency on a scale of 0-150. The lower the score the more efficient a home is. In recent years, the average HERS score in Kansas has been in the mid 60s.
Mechanically-controlled, continuously filtered fresh air system
Delivers exceptionally clean air certified by the EPA’s Indoor Air Quality+ standards, ensuring a healthier living environment.
Heat pump water heater
An ultra-efficient hot water solution that’s as sustainable as it is effective.
Geothermal heat pump HVAC
Coupled with the control layers built into the building envelope, this efficient system ensures energy costs are 70-80% lower than a similarly sized conventionally built home.
Minimized thermal bridge design
Reduces energy loss, prevents condensation in walls, and ensures consistent indoor temperatures.
EV charge ready
Conveniently charge your electric vehicle in your own garage.
