A wooden table with various office supplies including colored pens, white markers, a notebook, a sketch with drawings and notes, a roll of tape, a laptop, a person's arm and hand with tattoos, and a person's hand pointing at the sketch.
A wooden table with various office supplies including colored pens, white markers, a notebook, a sketch with drawings and notes, a roll of tape, a laptop, a person's arm and hand with tattoos, and a person's hand pointing at the sketch.

Development Support Services

Coliving Counsel can support you in deciding how to develop your property in a manner suitable for coliving or co-ownership.

We help you determine how to develop or zone your property for communal housing. We help you consider these options:

  • lot splitting and subdividing ministerially under California laws like SB 9, the Starter Home Revitalization Act, SB 684, and SB 1123,

  • lot splitting, subdividing, and adding dwelling units on the same lot via local missing middle housing laws and small-lot subdivision laws,

  • building accessory dwelling units (“ADUs”),

  • retrofitting residential or commercial properties,

  • shared housing buildings per AB 682,

  • group housing, rooming houses, congregate residences,

  • and the relationship between “functional family” rules and development options, including local variants like San Francisco’s Shared Housing Reform Act.

Architectural sketches and drawings on paper, colored markers in a bag, calculation tools, a notebook, a laptop, and a small dice on a wooden table.
Architectural sketches and drawings on paper, colored markers in a bag, calculation tools, a notebook, a laptop, and a small dice on a wooden table.

Client Story: ADU sale + SB 684 development

  • Question: I have a property with a single family home and a detached ADU. I’d like to sell the ADU. I’m in Berkeley, which has adopted AB 1033, allowing ADU condo sales. After selling the ADU, I’d like to develop three more units on the property using SB 684.

  • Answer: You can sell the ADU as a condo unit or as part of a space assignment tenancy in common agreement. AB 1033 makes it seem like tenancy in common is off limits. Yet case law clarifies that AB 1033 can’t make it off limits.

    Unfortunately, SB 684 is not available because your property is in a special flood hazard area. However, the fee-simple lot subdivision provision of the original Starter Home Revitalization Act applies despite flood area status.

    Let’s consider the relative difficulty of further development after selling the ADU as a condo unit versus selling it as part of a space assignment tenancy in common. Then, let’s consider the development possibilities afforded by the Starter Home Revitalization Act.

An aerial view of Berkeley from the hills, showing the campanile
An aerial view of Berkeley from the hills, showing the campanile

Client Story: Berkeley development options

  • Question: We’re three couples trying to decide between buying a triplex in Berkeley or buying a duplex and adding a unit. What options are available for adding a unit in Berkeley?

  • Answer: You can add an ADU, a dwelling unit on a new lot, or a dwelling unit on the same lot in Berkeley. You can make all of these additions essentially ministerially in Berkeley. State law authorizes ADU addition, and Berkeley allows ADUs up to 1,200 sq. ft. Berkeley’s upzoning renders the Starter Home Revitalization Act useless for adding one unit to a lot with a duplex. Further, Berkeley’s upzoning renders SB 684 more difficult than Berkeley’s own Middle Housing Infill Project ordinance. I would use Berkeley’s MHIP program to adding a unit on a new lot. Berkeley’s Middle Housing Zoning changes make a new dwelling unit on the same lot possible in much of the city with just an administrative zoning certificate.

    Let’s consider the way these development options relate to your arrangement choice. Let’s also consider the relative difficulty of lot-splitting versus adding a unit to an existing lot from a financing perspective.

Frequently Asked Questions

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