This small 1922 Bungalow in Portland’s Historic Irvington neighborhood is on the National Historic Registrar and was in need of upgrades.  The original 800 sf home was expanded to 1750 sf with 4 bedrooms and 3 baths.  Retaining the historic facade the new space-efficient modern interior includes comprehensive energy upgrades and full house Heat Recovery Ventilation for continuous fresh, filtered, air.  This Earth Advantage Platinum certified home also features a mini-split heat pump, Pacific Madrone Cabinets, and a Central Vacuum system.