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Mirra房屋—Contemporary Density in Magnolia

Posted on Jan 4, 2023 in:
  • 案例研究

重要的数据

Section

Location: Magnolia, Seattle
星级:4星
Checklist: 2018 Single Family/Townhome New Construction
验证人: 常绿的认证
场地及水源 116
能源效率 94
Health and Indoor Air Quality 105
材料效率 76
  总分 446

Medium density and Seattle’s Magnolia neighborhood are not terms you typically associate together. 然而, Mirra房屋’ Magnolia development offers 15 new townhomes in this stanchly single-family neighborhood increasing the site’s density by 400%.

Mirra房屋' Magnolia townhomes, exterior front

Magnolia is a highly desirable neighborhood. It is close to downtown Seattle but offers a respite from the hustle with access to large outdoor spaces and iconic views of Seattle’s waterfront and the Puget Sound. 然而, due to the neighborhood being predominantly low density, 独栋分区, many cannot obtain a home in the neighborhood. The Magnolia development transformed what used to be three single-family homes to 15 new townhomes ready for families to make their home.

The homes’ contemporary style and oversized windows let in an abundance of light, but don’t detract from their privacy. Through thoughtful layout and the use of various window sizes, units do not look directly into one-another or prominently display a neighbor’s wall. Roof-top decks provide expansive views of Magnolia, Queen Anne, Phinney Ridge, and beyond. Their open floor and stacked floor plans offer efficient and flexible space for a variety of family needs. 维修费用低, drought-tolerant plantings and pervious hardscape reduce potable water use and stormwater runoff.

With ductless heat pump mini-splits space conditioning throughout most of the unit, residents have zonal temperature control for both heating and cooling in their living spaces. A gas tankless water heater services domestic hot water demands with an Energy Factor of 96%. 这些系统, combined with the rigid foam roof and blown-in fiberglass wall insulations, 双层玻璃窗, 能源之星电器, and LED照明 contributed to these homes achieving a modeled performance of 29.2% improvement over 2015 WSEC.

The project also used an abundance of locally produced material, including rigid insulation, 木材框架, 石膏灰胶纸夹板, 橱柜, 和窗户. Mirra homes promoted superior indoor air quality by choosing materials with fewer toxins/VOCs in them to limit off-gassing inside the units—from the paints, 捻缝, 粘合剂, and sealants to the pre-finished laminate flooring, 橱柜, 和磨光工作.

Mirra房屋' Magnolia townhomes, interior
Mirra房屋' Magnolia townhomes, exterior back
Mirra房屋' Magnolia townhomes, kitchen
 

构建绿色 highlights:

场地及水源

  • Infill site, increased site density by 400%
  • Shared off-street parking
  • Light-colored pervious hardscaping
  • 80% of stormwater mitigated on-site
  • WaterSense, low-flow plumbing fixtures
  • Drought-tolerant plantings and no turf grass

能源效率

  • 模型实现29.2% improvement over WSEC 2015
  • Blown-in fiberglass insulation
  • Sealed attic with rigid insulation above the sheathing
  • Ductless heat pump and electric cadet space heating systems
  • Gas tankless water heater with an EF 0.96
  • LED照明
  • EnergyStar appliances, washer and dryer included
  • Prewired for future EV charging

Health and Indoor Air Quality

  • Low-pile, CRI Green labeled carpet
  • Greenguard Gold certified insulation
  • Low VOC paints, 粘合剂 & 完成
  • CARB II flooring, 橱柜 和磨光工作
  • Pre-finished engineered laminate flooring
  • Ultra-quiet bathroom spot fans with timer
  • No garages or fireplaces

材料效率

  • Open and stacked floorplan
  • Locally harvested, SFI certified lumber for framing, sheathing and beams
  • Vertical Grain Hemlock trim/millwork
  • An abundance of locally-produced materials
  • No vinyl flooring or siding
  • Recycled-content cement-fiber siding
  • Recycled-content plastic lumber composite decking
  • Self-adhering underlayment on eves, valleys, and penetrations
  • 75% recycling rate for all new construction waste
  • Built-in kitchen recycling center

Mirra房屋' Magnolia townhomes, location


Photos provided by Mirra房屋

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