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King City · Building on your lot

Lot splits under SB 9 in King City

SB 9 units in R-1: at most 16 feet, one story, 800 to 1,000 square feet; a lot split makes at most 2 parcels.

Key points

  • SB 9 units: SB 9 units in R-1: at most 16 feet, one story, 800 to 1,000 square feet; a lot split makes at most 2 parcels.

Each rule below links to the section of the King City Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What King City's code says

King City code What King City's code adds
How the lot may be divided
  • Neither new parcel may be smaller than 40% of the original lot area.
    Applies: Applies to an urban lot split (SB 9).
    § 16.40.040 · code text
    Neither resulting parcel shall be smaller than forty percent of the lot area of the original parcel proposed for subdivision;
Unit size
  • Each unit must be at least 800 and no more than 1,000 square feet.
    Applies: Applies to an SB 9 second unit or each unit of a two-unit project in the R-1 district.
    § 17.80.040 · code text
    A second unit, and both of the units in a two-unit development, shall be no smaller than eight hundred square feet and no larger than one thousand square feet in floor area each.
Minimum new lot size
  • Each new parcel must be at least 1,200 square feet.
    § 16.40.040 · code text
    Neither resulting parcel shall be smaller than one thousand two hundred square feet.
Setbacks
  • At least 4 feet from side and rear lot lines.
    Applies: SB 9 units. No added setback for an existing permitted structure or a unit rebuilt in the same place and size.
    § 17.80.040 · code text
    In all other circumstances, second units, and both units of a two-unit development, shall be set back at least four feet from the side and rear lot lines.
Standards
  • No more than 2 new parcels of about equal lot area.
    Applies: Applies to an urban lot split.
    § 16.40.040 · code text
    An urban lot split shall subdivide an existing parcel to create no more than two new parcels of approximately equal lot area, provided that:
  • Allowed only in the R-1 zoning district.
    Applies: Applies to SB 9 second units and two-unit projects.
    § 17.80.030 · code text
    Shall be located in an R-1 zoning district;
  • A site plan must show at least 1 home can be built under city code.
    Applies: Applies when an urban lot split creates a vacant parcel.
    § 16.40.040 · code text
    If the proposed urban lot split will result in the creation of a vacant parcel, then, as part of the application, the applicant shall submit a site plan for the proposed vacant parcel showing that a least one dwelling unit can be built on the parcel in compliance with the requirements of this code.
  • No taller than 16 feet and 1 story; not on the second or any higher story.
    Applies: Applies to an SB 9 second unit or two-unit project in the R-1 district.
    § 17.80.040 · code text
    A second unit, and both of the units in a two-unit development, shall be no taller than sixteen feet in height from ground level and shall be one-story. The units shall not be located on the second or any higher story of a structure.
  • A separate entrance is required.
    Applies: Applies to an SB 9 second unit or two-unit project in the R-1 district.
    § 17.80.040 · code text
    A second unit, and both of the units in a two-unit development, shall have a separate entrance.
  • Each new parcel must reach or adjoin the public right-of-way; an easement may be needed for the other parcel.
    Applies: Applies to parcels from an urban lot split.
    § 16.40.040 · code text
    Each parcel resulting from an urban lot split shall have access to or adjoin the public right-of-way, and, if necessary, provide the other parcel with access to the right-of-way through an easement.
Owner occupancy
  • The owner signs an affidavit to live in one new-lot home as their main residence for at least 3 years.
    Applies: Counted from approval. Does not apply to a community land trust or qualified nonprofit corporation.
    § 16.40.040 · code text
    (d) As a condition of approval for an urban lot split, the owner of the parcel being split shall sign an affidavit, in a form approved by the city attorney, stating that: (1) The proposed urban lot split will not violate the requirements of subsection (c) of this section; (2) Neither the owner, nor any person acting in concert with the owner, has previously subdivided an adjacent parcel using an urban lot split; and (3) The owner intends to occupy a residential dwelling unit on one of the parcels created by the urban lot split as their primary residence for a minimum of three years from the date of the approval of the urban lot split. This subsection (d)(3) shall not apply if the owner of the parcel is a “community land trust,” as defined in clause (ii) of subparagraph (C) of paragraph (11) of subdivision (a) of Section 402.1 of the Revenue and Taxation Code, or is a “qualified nonprofit corporation” as described in Section 214.15 of the Revenue and Taxation Code.
Parking
  • 1 off-street parking space per unit.
    Applies: Each SB 9 unit, except within a half-mile walk of qualifying transit or 1 block of a car-share vehicle.
    § 17.80.040 · code text
    One off-street parking space is required for a second unit and one off-street parking space per unit is required for each unit of a two-unit development.

Who this affects

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Frequently asked questions

Can I split my lot under SB 9 in King City?

SB 9 units in R-1: at most 16 feet, one story, 800 to 1,000 square feet; a lot split makes at most 2 parcels.

General information, not legal advice.

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