State Line Passive House

NEIGHBORHOOD

Westwood

SIZE

4,000 sqft

BEDS

4

BATH

4.5

Meticulously designed, modeled, and constructed, the Kala home at 4800 State Line is unlike any other in the area.


Taking the definition of luxury to a new level, you’ll feel the difference quality, high performance construction makes as soon as you enter the space. Built to Passive House standards, the home is virtually airtight, has a continuous air barrier and uses an ERV for mechanically controlled fresh filtered air. 


We are excited to collaborate with ULAH Interiors + Design for the interiors of the State Line Passive House.

It's all in the details.

  • Airtight (target below 1 ACH50*), vapor-open envelope assembly

    Keeps your home comfortable year-round by preventing air leaks while allowing any trapped moisture to dry safely outside, ensuring long-term durability.

  • Thermally-broken, triple-pane, NFRC-certified U-Value of 0.14 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.

  • High-performance entry doors

    Multi-point locks and airtight seals make these doors not only secure but also energy efficient and incredibly durable.

  • R-45 thermally-broken wall assembly

    Exceptional insulation capacity for managing thermal transfer of energy.


  • R-18.4 continuous slab and R-26 foundation insulation

    Minimizes thermal energy transfer and helps the slab maintain a steady temperature relative to indoor temperature.


  • R-71 roof insulation

    The ultimate thermal control layer in both winter and summer, keeping the house a comfortable temperature year round.

  • 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.

  • 12.6 HSPF heating and 17.8 SEER cooling high efficiency heat pump

    Coupled with the control layers, ensures energy costs are 80-90% lower than a similarly sized conventionally built home.


  • Heat pump water heater

    An ultra-efficient hot water solution that’s as sustainable as it is effective.

  • 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.