Close Menu
Retrofit HomeRetrofit Home
    • Features
    • Industry News
    • Manufacturer News
    • Products
    • Online Exclusives
    What's Hot

    FGIA Releases Industry Statistical Review and Forecast

    Tile Backer Board Is Free from VOCs, Quartz Silica Dust and More

    Acrylic Flashing Is Fully Transparent

    Facebook X (Twitter) Instagram Pinterest YouTube
    • About
    • Contact Us
    • Media Kit
    Subscribe
    X (Twitter) Facebook LinkedIn YouTube Instagram
    Retrofit HomeRetrofit Home
    • Features
      • Bath
      • DesignVibes
      • Exterior
      • Kitchen
      • Multifamily
      • Outdoor Living
      • Projects
      • RoomReveal
      • Single Family
      • Unique
      • Viewpoint
    • News
      • Industry
      • Manufacturer
    • Online Exclusives
      • Blog
    • Archives
      • Summer 2025
      • Winter 2025
      • Fall 2024
      • Summer 2024
      • Winter 2024
      • Fall 2023
      • Summer 2023
      • Spring 2023
      • Winter 2023
      • Fall 2022
      • Summer 2022
      • Spring 2022
      • Fall 2021
    • Products
      • Appliances
      • Electrical
      • Equipment
      • Fixtures
      • Flooring
      • Glass
      • HVAC
      • Insulation
      • Interior Design
      • Lighting
      • Outdoor Amenities
      • Paints/Coatings
      • Plumbing
      • Roofing
      • Safety
      • Siding & Accessories
      • Solar
      • Structural
      • Surfaces
      • Technology
      • Walls & Ceilings
      • Windows/Doors
    • Metamorphosis Awards
      • 2024 Awards
      • 2023 Awards
      • 2022 Awards
      • 2021 Awards
      • 2020 Awards
      • 2019 Awards
    Retrofit HomeRetrofit Home
    You are at:Retrofit Home » Features » Single Family » A Confused Structure Is Shaped into a Coherent Mid-century Modern Home
    Single Family

    A Confused Structure Is Shaped into a Coherent Mid-century Modern Home

    By Ken ShallcrossJanuary 6, 20256 Mins Read
    DNM Architecture, structural problems, Mid-century modern
    Share
    Facebook Twitter LinkedIn Email Copy Link

    Perched atop a hill in Marin County, Calif., a 4,280-square-foot, five-bedroom home, known
    as Sugarloaf, provides its residents amazing 270-degree views of the Golden Gate Bridge and San Francisco Bay. In fact, the location is so spectacular that it is rumored the Dali Lama owned the home for about 10 years.

    Built in the 1960s, the house had been carelessly modified through the years to adopt the elements of California’s Mid-century Modern style, but it remained very closed and boxy inside. In addition, the modifications were so haphazard that the structure had morphed into a tortured and seismically unstable agglomeration of past structures and additions with a second story literally built on the roof of the first story. The result was multiple structural deficiencies.

    DNM Architecture, structural problems, Mid-century modern
    On axis with the front door and across the foyer, the sweeping views of San Francisco and the entire Bay Area are immediately on display.

    A Change in Plans

    The clients asked Architect David Marlatt, principal/founder of DNM Architecture, and his team to open the interiors and maximize the home’s geographical benefits (bring in those views!); create a real primary suite on the second floor; and redo the outdated, dimly lit kitchen.

    However, it didn’t take long to discover serious structural flaws lying beneath the surface. When the kitchen ceiling was opened, the renovation team discovered the second-story addition had been built over the previous roof without removing any of the tar roof. Additionally, the added upper floor was not connected properly to the walls of the already existing lower floor, which made the house in its then-current state extremely unstable in an earthquake. To make matters worse, some of the existing lower-floor walls were just sitting on the concrete slab without proper footings, and there was a considerable amount of dry rot further weakening the walls and base structure. 

    As a result of this discovery, the scope of the project was changed to include an extensive structural update. 

    Because part of the original plan was to open the interiors, some existing interior walls were already scheduled to be removed, and steel beams were to be installed to ensure proper seismic stability. Now, however, the first and second floor have been properly framed and joined from the inside using hold-downs and straps to correct the poor construction and dangerous hinge connections. The dry-rotted wood found around sill plates, windows and roof eaves that had resulted from improper sealing was also fully removed and replaced. 

    DNM Architecture, structural problems, Mid-century modern
    BEFORE: Built in the 1960s, the house had been carelessly modified through the years to adopt the elements of California’s Mid-century Modern style, but it remained very closed and boxy inside. PHOTO: DNM Architecture

    The original intent was to reinvent the home into the modernist architecture dwelling it aspired to be. Although this mission never changed, the structural update has secured the home properly and corrected all previous faulty and dangerous construction.

    New Design

    The redesign centers around a welcoming 2-story entry that anchors two wings of the home. The home’s existing footprint did not change, except for the new foyer created by pushing the front door out and removing some faux roof elements to make the wall flush. Visitors now enter through a stunning atrium, walled almost entirely by glass. On the right side of the atrium opposite the stairs, in preparation for aging-in-place, a pneumatic vacuum elevator was installed to connect the upper and lower floors.

    On axis with the front door and across the foyer, the sweeping views of San Francisco and the entire Bay Area are immediately on display. The strong indoor-outdoor connection in the living room is made with large windows and a three-panel accordion folding glass door. The view continues as the eye reflexively sweeps to the right to take in the dining room defined by a peninsula fireplace room divider. 

    DNM Architecture, structural problems, Mid-century modern
    The strong indoor-outdoor connection in the living room is made with large windows and a three-panel accordion folding glass door.

    A wall separating the dining room from the modernized kitchen was removed. The difference is striking in the efficiency of flow and space (not having to pass through a narrow doorway) and the abundance of light (now uninhibited by a wall). 

    To the left of the entry foyer, a hall leads past the rebuilt staircase to a separate family room, a pair of guest rooms and two remodeled bathrooms. 

    The second floor was overhauled to fulfill the clients’ dreams of a true primary suite: They now have a full wing of the home to themselves. At the top of the rebuilt modern staircase is a walkway bridge that spans the front entry, giving a grand view from the second floor. To the left, the new luxurious primary bedroom sits opposite a spa-like primary bathroom, which includes dual sinks, dual toilets, a large
    walk-in shower and a balcony with a view. Each spouse also has his or her own custom-designed walk-in closet. This is truly a space for the owners to relax, rejuvenate and get ready for the day; in fact, large windows in front of each bathroom sink put the north bay on full display. 

    Two additional bedrooms and a bathroom complete the second floor. 

    DNM Architecture, structural problems, Mid-century modern
    At the top of the rebuilt modern staircase is a walkway bridge that spans the front entry, giving a grand view from the second floor.

    The exterior of the home also received a modern update. Remnants of the original single-story roof were removed, and the home received a new coat of bright white stucco—a color change from the previous beige. Windows were completely replaced throughout, and minor repairs were made to the roof to complete the visual transformation of the main home. A pool and detached accessory dwelling unit are in the planning phases and will complete the composition.

    Transformed

    Architecture tells a story, whether intentional or not. This project is the story of a neglected house that has been reinvented into a confident home with two wings flanking a core entry and living room in a most welcoming gesture. Its large windows frame inspiring views of the San Francisco Bay while generous roofs express both shelter and exuberance. Sugarloaf is finally the modernist home it was intended to be. 

    PHOTOS: Jamie Leasure unless otherwise noted

    Retrofit Team

    Architect: DNM Architecture

    Contractors: Filshie Enterprises and Endora Builders

    Structural Engineer: WM Structural Engineering

    Civil Engineer: DeBolt Civil Engineering

    Interior Designer: Martin Kobus Home

    Materials

    Appliances: Miele

    DNM Architecture, structural problems, Mid-century modern
    In the primary bath, large windows in front of each bathroom sink put the north bay on full display.

    Floors: European Oak from Johnson Hardwood

    Cabinets: Durabella Custom Cabinetry

    Windows and Doors: Ultimate from Marvin

    Bath Faucets: Loure and Ribbon from Kohler

    Bath Sinks: Kohler

    Fireplace: Ortal

    Suspended Lighting: Perpetual from ET2 Contemporary Lighting

    Stucco: LaHabra

    Elevator: PVE 

    Structural Straps: Simpson Strong-Tie

    Author

    • Ken Shallcross
      Ken Shallcross

      Ken Shallcross is vice president of the Modern Architecture + Design Society, for which he has shined the spotlight on some of the best residential projects across North America through writing and the signature Modern Home Tour event series.

      View all posts
    DNM Architecture elevator mid-century modern structural problems
    Share. Facebook Twitter LinkedIn Copy Link
    Previous ArticleEnvironment America’s 2025 Look-ahead: Protecting Consumers and Nature, Cleaning Air and Water
    Next Article S-5! Wins MBMA Gold-Level Industry Advocate Award

    Related Posts

    Tiles Combine Geometric Forms with Natural Imperfections

    May 13, 2025

    Color Conundrum

    May 12, 2025

    These Five Home-hardening Techniques Can Protect against Natural Disasters

    May 12, 2025
    Leave A Reply Cancel Reply

    Stay In Touch
    • Facebook
    • Twitter
    • YouTube
    • LinkedIn
    • Instagram
    Top Posts

    The Importance of Custom Door Craftsmanship

    April 23, 2025280

    Wood-look Siding Is Made of Vinyl

    March 4, 2024

    Outdoor Flooring System Snaps Together to Create Foundation for Ground-level Deck

    April 24, 2024

    Fireplace Redefines ‘Fire’ with Water Vapor

    April 8, 2024
    About Us
    About Us

    retrofit home magazine’s goal is to provide designers, contractors and others education about and insight into retrofitting existing homes for the betterment of their owners and communities. Learn More >>

    Facebook X (Twitter) Instagram YouTube LinkedIn
    RetrofitTV

    Experience a world of retrofitting without leaving your desk via our retrofitTV channel. View our current featured video:

    Visit retrofitTV.com to watch more videos from our industry.

    Visit Our Other Publications
    retrofit mag logo
    retrofit tv logo
    © 2025 retrofit home
    • About
    • Contact Us
    • Media Kit
    • Subscribe
    • Privacy Policy

    Type above and press Enter to search. Press Esc to cancel.