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Charlottesville Infill

    • This 2,572-square-foot neotraditional home on an infill lot in a 1990s-era development was constructed by Promethean Homes of Charlottesville, Virginia, and certified as a U.S. DOE Zero Energy Ready Home.
    • Even without solar panels on the roof, this high-performance home achieves a Home Energy Rating System (HERS) score of 33, far below the HERS 100 score typical of new homes. The home is expected to save its owners about $1,600 a year in utility bill savings.
    • Although the home architecture complements neighboring properties, it takes performance to a whole new level including ultra-low energy bills, engineered comfort, a healthful environment, advanced technology, and enhanced durability.
    • Carefully designed solar window shading helps keep heat out during hot summer weather.
    • Low-/no-VOC certified paints and finishes are used for a healthier indoor environment.
    • This home uses an ultra-efficient heat pump system (21 SEER, 12.2 HSPF). Short duct runs between floors and above a dropped ceiling create an interior comfort delivery system that keeps ducts away from extreme attic temperatures.
    • Advanced solid-state lighting technology with LED lamps is used in 85% of the fixtures, while fluorescent lighting is used in most of the remaining fixtures.
    • High-efficiency wall framing uses 2-by-6 studs spaced 24 inches apart instead of the standard 16 inches on-center, single instead of double top plates, and other details that reduce the use of lumber while increasing space for insulation in the walls.
    • Comprehensive draft protection includes rubber gaskets at all pipe and wiring penetrations, sealing every seam in the plywood sheathing with a liquid sealant, and taping seams between the slab and foundation walls. The home is so airtight it exceeds the most rigorous industry standards for air sealing set by Passive House.
    • The 5.5 inches of cellulose inside the walls is combined with a continuous exterior thermal blanket made with a 2-inch thick layer of bug-resistant, fire-resistant, rigid mineral wool insulation on the outside.

      Charlottesville Infill

      Project Address

      Charlottesville, VA

      Conditioned Square Footage
      2,572 sqft
      Number of Bedrooms
      3 Beds
      Number of Bathrooms
      2.5 Baths
      Number of Floors Above Grade
      2 Floors Above Grade
      Home Type
      Custom
      Climate Zone Temperature
      Mixed
      Climate Zone Humidity
      Humid

      With PV

      HERS Index with PV
      33HERS (PV)
      Average Monthly Energy Bill PV
      $70Average Monthly Energy Bill (PV)
      Annual Energy Cost Savings with PV
      $1,600Annual Energy Cost Savings (PV)
      30 Year Savings with PV
      $68,00030 Year Savings (PV)

      Promethean Homes, LLC

      ZERO

      HIA Year
      HIA Status
      Winner
      HIA Category
      Housing Innovation Award

      Learn More

      Key Features

      Key Features
      All-electric home Energy / Heat recovery ventilator Heat pump water heater High-efficiency variable-speed heat pump High-performance wall with continuous insulation Triple-pane windows ACH 50 < 2.5 or CFM50/SF of enclosure ≤ 0.25 Central Manifold Plumbing Design

      Read the Case Study

      Testimonials

      Home owner (or occupant) Testimony
      We're appreciating the comfortable, steady temperatures in the house, day and night. No drafts, no sudden changes. The prompt hot water delivery is quite a treat. We rarely hear outside noises. Our air exchanger appears to trap any fine dust and we don't have to breathe it – so we've been quite healthy since we moved in at the beginning of last July. Our electric bills have been remarkably low – and that's been a welcome change.
      Testimony Citation
      Homeowners Bob and Jean

      Additional Media

      Finished Elevations

        Finished Interiors

          Under Construction

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            Other Images

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              Floor Plan