An Ingenious In-law Suite on an Unforgiving Site - Fine Homebuilding
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CozyDigz

CozyDigz


An Ingenious In-law Suite on an Unforgiving Site

comments (0) February 15th, 2013 in Blogs
Olitch Mike Litchfield, Blogger, book author, one of the first FHB editors

Before. Seen from the house walkway, the garage sits against a steeply sloping hill. The bottom of the window is the same level as the garage floor, so most of the structure was unused space. The site gets heavy fog 300 days a year.
Side view of the garage, at right. Cut into a steep hillside, the unused space beneath the garage was a natural for an in-law suite--if structural challenges could be met and a multi-functional floor plan could be developed.
After installing the subfloor, the crew erected shoring to transfer garage loads from a wooden girder to a new steel I-beam that would be hidden in the finished ceiling.  
The renovated façade deftly balances light and privacy for the in-law suite. The large white panel, at left, uses laminated glass to prevent silhouetting in the shower, whereas the obscure glass panel, at right, admits more natural light to the living area.
Multi-functionality optimizes precious space. The design makes the most of the 490 sq. ft. footprint, thanks to a bank of custom cabinets, a Murphy bed and a moving wall. Shown as a heavy line in front of the kitchenette, the sliding wall, when opened, disappears into the walk-in closet, bottom left. 
The in-law suites interior detailing is much like that of the main house: clean lines, solid maple floors, recessed lights, and generous expanses of glass. The custom beech built-ins along the south wall house a Murphy bed and a compact kitchen.
Chris Rogers, Job Super/Cabinetmaker
With the Murphy bed down, one looks out into a forest-a rare sight on the edge of a city. The cabinet panel hiding the kitchen is, in fact, a giant pocket door that slides silently into a walk-in closet, off-camera, at left. Bumpered guides keep the door aligned, so theres no need for unsightly floor tracks. 
The bathroom has the same cabinetry and modern aesthetics. The shower area, of closely fitted slate, is bounded by glass partitions…but no threshold. The showers floor-to-ceiling glass panel, at right, is made of white laminated glass; it admits light but ensures privacy.
The in-law at night, looking toward the main house.
Renovation 4th Edition offers thousands of practical tips and techniques from master builders and showcases exemplary renovation design solutions.
In-laws, Outaws and Granny Flats was named one of the Ten Best Design Books for 2011. More than 200 architectural photos, 26 floor plans and case histories, overviews of the six most common types of in-law suites. Practical info on planning, permits, space-saving appliances and more.
Before. Seen from the house walkway, the garage sits against a steeply sloping hill. The bottom of the window is the same level as the garage floor, so most of the structure was unused space. The site gets heavy fog 300 days a year.Click To Enlarge

Before. Seen from the house walkway, the garage sits against a steeply sloping hill. The bottom of the window is the same level as the garage floor, so most of the structure was unused space. The site gets heavy fog 300 days a year.

Photo: Mike Litchfield

(This case history from Renovation 4th Edition reflects today's need to maximize space and functionality, conserve resources, and create homes that can accommodate life's changes.)

 

At first glance, the space beneath the garage was a daunting place to add an in-law suite. It was dark, steeply pitched and--perched on one of San Francisco's foggier hillsides--damp most of the year. Structurally, the rehab was sure to be complex as well. So by the time the owners, Narayan and Melanie, met with Stephen Shoup of buildingLab, they had spent a lot of time pondering a renovation, and had as many questions as answers.

 

Initially, the suite would house an au pair but some day one of their parents would probably move in. So it needed to be a self-contained living space. Aesthetically, the suite should match the main house. For budgetary reasons, it must be built entirely within the footprint of the garage, 490 sq. ft. And because both clients were very busy, they wanted to simplify decision-making and lines of responsibility. They wanted just one entity, buildingLab, to handle all aspects of the job--whether wrangling with the city, refining the design, or explaining the technical implications of a choice. 

 

Clients' requirements: "Create an in-law suite from the raw space under the garage. Tie the new unit to the main house by incorporating similar materials, proportions and aesthetics. Though the unit should be autonomous, it need not be slavishly so, because whoever lives in the suite will be an active part of our lives."

 

Design Solutions: The size of the space and the disposition of the site largely decided the layout. To create a complete dwelling in so little space, clearly some areas would have to do double duty--be multi-functional, that is.

 

Two walls had no opportunities for windows: the south wall was cut into the hillside, whereas the east wall bordered the stairs. Thus the large walk-in closet, which needed no natural light, was placed in the SE corner; the kitchenette (which was too small for entertaining) was placed next to the closet, along the south wall. Clearly, the living room area needed light, so it was situated along the north wall, near the door. The main trade-off was between the bath and bed. Because it would be calming to lie in bed and look out into the forest, the owners decided to situate the Murphy bed in the SW corner, so the bath was consigned to the remaining (NE) corner, with white laminated glass to assure its privacy. 

  

Heavy Lifting: To create a clear open space for the suite, it was necessary to replace an existing wood girder with a 600-lb steel I-beam that spanned 22 ft. This operation will chronicled in Feb 22's CozyDigz blog, "Replacing a Wooden Girder with a Steel I-Beam."

 

Green touches: FSC-certified lumber. Locally sourced materials whenever possible. Low-flow bath fixtures. Using a recirculation loop to pull hot water to the suite, saving water. Recycled cotton insulation. Created new dwelling on existing lot, within existing structure. Multi-functional, space-conserving layout and furniture. 

 

Clients' parting thoughts: "We chose a design-build firm…based on our fundamental belief that if you are detail oriented, like us, then you need someone who understands the build implications of the design and conversely the design choices that will best fit your taste if build constraints emerge…A design-build approach seems the most customer-centric one to us because they are involved with you all through the project."

 

 

Thousands of field-tested tips

This blog was adapted from Renovation 4th Edition, just published by Taunton Press. In addition to case histories about award-winning designs, Renovation 4's 614 pages include 250+ technical drawings, 1,000 photos from the 40,000 I have taken over the years, and thousands of field-tested tips and techniques that master builders have shared with me.

 

If you are specifically interested in in-law units, have a look at In-laws, Outaws and Granny Flats: Your Guide to Turning One House into Two Homes, which was named one of the Ten Best Design Books for 2011. 200+ architectural photos, 26 case histories and floor plans, practical info on planning, permits, space-saving appliances and more.

 

© Michael Litchfield 2013



posted in: Blogs, remodeling, additions, contemporary, garage

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