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Okauchee Lake Single-Family Residence
Lakeview Lane
Okauchee Lake
Oconomowoc, WI

Type of Construction: Custom Single-Family Residence
Construction Manager: Hunzinger Construction
LEED Consultant: Sustainable Building Solutions
Size: 2,561 sf / 2-story / 5 bedroom
Architect: Johnson Design & Plunkett Raysich Architects
Engineering: R.A. Smith, Strass-Maguire, Total Mechanical
Summary: LEED Gold Goal

Sustainable Aspects:

  • Erosion Controls during construction
  • Landscaping: no invasive plants, 20% limited conventional turf, 90% drought-tolerant plants
  • Reduced Heat Island Effects: installed light-colored, high-albedo materials for 50% of hardscapes
  • Surface Water Management: Permeable Lot = 40% vegetative landscape, 20% permeable paving, 20% impermeable surfaces directed to infiltration features, 20% other
  • Permanent erosion controls
  • Management of runoff from roof
  • Rainwater Harvesting System: 50% of roof area used for harvesting
  • Irrigation System: high-efficiency irrigation system, use of drip irrigation for 50% of planting beds, high-efficiency nozzles with distribution uniformity of at least 0.70
  • High-efficiency fixtures and fittings
  • Optimized energy performance: Energy Star for Homes
  • 75% Construction & Demolition Waste diverted from landfill
  • Enhanced Outdoor Air Ventilation: installed heat recovery system
  • Radon-Resistance Construction
  • Energy Star Labeled appliances

Design Concepts:

East Elevation
1) The stair tower design provides architectural interest, detail, and uniqueness.  The circle window and corrugated metal add a nice eclectic twist.
2) The transition point of the horizontal siding was lowered to board and batten to redistribute the facade proportions for better balance and more architectural interest.
3) Cable rail was used to add a lighter, more updated feel to the overall design.
4) Casement windows provide clear site lines and update the design.
5) The stone wall and heavier columns help ground the house.
6) The stone knee wall extends to downplay the basement level door.
7) The cascading stair and raised planter make the entry sequence more visible and gracious.

West Elevation
1) Corrugated metal is being introduced to the west elevation at the upper bay & dormers. Weaving the material throughout the design, in small special places, continues a unique surprise element.
2) The den window pattern aligns with the master bedroom windows and features operable windows on 2 sides, with a large fixed center.
3) The raised stone base is continued at the base of the columns and continues the tapered column profile.

South Elevation
1) The expression of the chimney on the exterior is introduced.  The design mixes stone and stainless steel vent pipe for a unique look and beach house aesthetic.
2) Raised stone is located around the patio area.
3) Corrugated metal dormers are introduced in this elevation.

North Elevation
1) A full lite door with sidelite at the entry makes the entryway more open and inviting.
2) The windows at the stair coordinate with the east elevation.
3) The window pattern into the den consists of three square windows to coordinate with the other square windows in this area.
4) The raised stone around the stair align with the additional stone base on the house.