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Private residence and studio in La Jolla, California

This project explores the potential for an urban house in Downtown La Jolla to incorporate both a working studio and traditional residential programs.

This 7,200 square-foot lot was an abandoned brownfield site, vacant since 1992. The architect/owner used the space to build a private, urban residence for his family with an on-site architecture studio that is fully sustainable and divorced form the grid by roofmounted photovoltaic electrical panels. The residence is a cement plaster-clad box resting on and supported by Corten steel wall planes, providing both privacy and noise attenuation. The main living area is surrounded by a reflecting pool on one side and a glass floor on the opposite. Below grade, where the office and recreation facilities are located, the glass floor/ceiling liberates the space and allows ample natural light. The house is open and flowing, extending the livable space into the private garden and reflecting pool. Boundaries are dissolved and extended through sliding panels and lightness, transparency, and expansive views.

Three-story wood frame construction
Type V Construction
Value: $4,200,000




  • Subdivision of 50 x 100 lot into 25 x 25, 25 x 25, and 50 x 75

  • Live-work convertible housing

  • Wall to lower housing costs

  • Like many parts of the U.S., downtown San Diego is experiencing tremendous growth and revitalization. Although ultimately beneficial for the community and residents, an unfortunate result of the building boom is a loss of the city's connection to the past. In this project, the architect took a 50 x 100-foot infill lot and developed two housing prototypes for San Diego's urban core - a small-lot convertible house and a new urban mixed-use mansion. Conceived as a way to lower housing costs in San Diego, the site's two convertible units are on 25 x 25-foot lots, with the lower levels designed as rentable office or living space, allowing the owner to subsidize the cost of the mortgage. The "T" shaped upper level of the larger unit is dedicated living space, which shapes two courtyards neatly hidden behind the streets' walls. The lower level houses an architecture office. The units respect the small scale of the neighborhood and add elegance to the city's streetscape.


    Value $2,500,000





    Urban adaptive reuse, affordable and sustainable, for rent housing.

    The KLOFTS, and affordable housing project, was designed with a participatory design process creating positive connections between and among residents, community stakeholders, local government officials and civic group. The design outcome provides a building and public and private spaces that enhance human scale and further promote social interaction, shared use of space, defensible space to help revitalize this deteriorating community while at the same time enhancing the community's physical fabric. The project was built at a cost of $82/SF and utilized no governmental subsidy.

    KLOFTS is a collection of simplistic architectural forms collaged to create a nine unit loft building on a nine thousand square foot urban property in Golden Hill area of Downtown, San Diego. The former Circle K convenience store and gas station was saved and integrated into the new design to minimize the deconstruction and make adaptive reuse of the existing building. The modern building integrates urban living environments for a mixture of very low income (50% of median income) affordable and market rate rental units with each unit containing large private outdoor spaces and oversize glazing. The sustainable project provides 50% renewable electricity and a unit set aside for very low-income families. The architect/developer worked closely with the community for nine months to ensure a project that is well received by the neighborhood and provides much needed affordable housing in San Diego.

    Adaptive re-use of an existing Circle K building into 9 for-rent lofts and affordable housing.
    Two-story wood frame construction
    Value: $1,950,000





  • Adaptive reuse

  • 100% photovoltaic

  • Sustainable
  • Drought tolerant landscaping

  • Cross ventilation

  • During the 70's San Diego had a flourishing textile business and strong union membership. The Golden Hill area directly adjacent to the San Diego Freeway and Downtown became the home for the textile manufactures union hall. Subsequently the union and textile manufacturing industry moved away and the site fell in disarray. Rather than demolishing the nondescript 70's slump block building, the architect took a sustainable approach and acting as owner/developer/contractor decided to adaptively reuse the building as fully sustainable edifice with two affordable livework lofts and his own architectural office.

    In addition the property provided two parking lots that are now developed to include 13 individual "for rent" sustainable town homes. Conceptually the homes are designed to harmonize with the neighborhood, have significant individual presence on the street and substantial private outdoor space connected to the interiors by an abundance of glazing. Each unit generates their own power form roof mounted photovoltaic panels and landscaping with drought tolerant plants. No subsidies or variances were provided for from the city of San Diego.

    Rehabilitation and adaptive reuse of Union Hall into architectural office and construction of 13 new sustainable, for-rent loft/apartments
    Three-story wood frame construction
    Value: $6,000,000







    Currently, the Little Italy district of Downtown San Diego has an over-abundance of restaurants and residential construction.  To achieve a 24-hour neighborhood, a mix of office space needs to be included.


    The Q, a seven-story fully sustainable office/residential/retail building, will fill this void.


    San Diego, leading the nation in urban removal, has a total disregard to historical heritage.  The Q will integrate Little Italy’s oldest house, a 1889 historically designated Gothic Victorian structure into its plans.  The 316 square foot residence will be integrated into the overall design scheme, leaving a twelve-foot separation between it and the new structure.  The residence will be moved from its current locale on the site’s western elevation to the eastern more commercial street and utilized as a small café.


    The Q will be completely photovoltaic driven with an abundance of high performance floor-to-ceiling glazing and operable windows for cross-ventilation, eliminating the need for air-conditioning for a carbon-less building.


    The Q will become the new benchmark for green, sustainable office development in Downtown San Diego.  Photovoltaic panels, abundance of glazing and cross ventilation will become ubiquitous once the development community understands the civic and financial virtues of good, sustainable design.

    Value: $14,500,000






    U R B A N   D E V E L O P M E N T   P R O J E C T S

    All projects are located in San Diego, designed and developed by Jonathan Segal FAIA.

    IN PROGRESS
    THE Q
    The Q is the newest project in development by Jonathan Segal FAIA. This 6 story mixed used building will be located in the heart of Little Italy and is expected to be completed in 2009.
    Value $14,500,000

    2006
    THE UNION MIXED-USE LOFTS (Golden Hills)
    Rehabilitation and adaptive reuse of Union Hall into architectural office and construction of 13 new sustainable, for-rent loft/apartments; three-story wood frame construction
    Value $6,000,000

    2005
    K LOFTS (Golden Hills)
    Adaptive reuse of an existing Circle K building into 9 for-rent lofts and affordable housing; two-story wood frame construction
    Value $1,950,000

    2003
    THE TITAN
    22 loft and live/work for-rent units; five-story wood frame construction
    Value $3,800,000

    2001
    LUSSO
    31 loft and live/work for-rent units; three-story wood frame construction
    Value $7,500,000

    2000
    THE WATERFRONT
    37 loft and live/work for-rent units and 4 commercial spaces/mixed-use rehab and new construction. Creation of the ultimate urban village while saving existing structures and incorporating modernist interpretation of loft housing saveing the oldest bar in San Diego on the property. Frame construction
    Value $8,500,000

    1999
    THE STATE
    3 custom, urban, for-sale residences; study of urban convertible housing on 25'x 25' urban lots; the first construction of an urban mansion in downtown; three-story wood frame construction
    Value $2,500,000

    BLUE BOX
    Adaptive reuse and a conversion of an old warehouse into 7 live/work lofts; two-story wood frame
    Value $1,400,000

    1998
    ANGOVE LOFTS
    11 loft and live/work for-rent units; ultimate study in urban box as form and auto court as central community space; four-story wood frame construction
    Value $1,200,000

    MOTO VILLAS
    36 loft and live/work for-rent units; first model of a project with auto court as central community gathering focus; four-story wood frame construction
    Value $4,500,000

    COLEMAN LOFTS
    Adaptive reuse and conversion of an old warehouse into four live/work lofts; single story wood frame construction
    Value $450,000

    1997
    KETTNER ROW (LIND)
    16 live/work for-sale rowhouses with granny flats and retail space. Development with four other architects on city block. Demonstration project for new urban housing types. Refinement of the convertible housing on a mass market basis. Three-story wood frame construction
    Value $3,700,000

    1996
    BRICKYARD
    18 live/work for-sale units with commercial and retail space (cafe); first project to incorporate existing structures on site into new development; five-story steel and wood frame over concrete parking garage
    Value $7,000,000

    1995
    ISLAND LOFTS
    18 live/work for-sale lofts; six-story wood frame over parking concrete garage
    Value $2,700,000

    1992
    COLUMBIA & FIR LOFTS
    17 live/work for-sale lofts; five-story wood frame over concrete parking garage
    Value $2,700,000

    1990
    7 ON KETTNER
    Seven rowhouses on a triangular-shaped lot; first "convertible housing" project; three-story wood frame over concrete garage
    Value $2,600,000

    S I N G L E   F A M I L Y   R E S I D E N C E S

    All projects are located in La Jolla, CA, designed or developed by Jonathan Segal FAIA.
    * client project
    2007
    LEMPERLE RESIDENCE*
    Three-story concrete, steel, and glass residence on oceanfront
    Value $4,000,000

    2006
    HSIEH ART STUDIO*
    4,200 sf, 3-story plus basement art studio and underground parking garage for auto collection
    Value $8,000,000

    2003
    THE PROSPECT
    Type v, three-story wood frame construction
    Value $4,200,000

    1995
    HSEIH RESIDENCE
    8,000 sf residence

    R E H A B   &   T E N A N T   I M P R O V E M E N T   I N T E R I O R

    2007
    LOGAN BUILDING*
    Rehab & interior design of 12,000 SF building for graphic design firm, Mirriello Graphico

    2006
    SAUVAGE*
    International headquarters, rehab & interior design of 11,000 SF building in San Diego, CA for swimsuit designer and manufacturer.



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    architect as DEVELOPER  |  1945 B Street Suite A  |  San Diego, CA 92102  |  info@architectasdeveloper.com