Cal. Gov't Code § 51250
(b) For purposes of this section, a breach is material if, on a parcel under contract, both of the following conditions are met:
(2) The total area of all of the building or buildings likely causing the breach exceeds 2,500 square feet for either of the following:
(B) All property subject to a contract entered into after January 1, 2004, covering property not subject to a contract on January 1, 2004.
For purposes of this subdivision any additional parcels not specified in the legal description that accompanied the contract, as it existed prior to January 1, 2003, including any parcel created or recognized within an existing contract by subdivision, deed, partition, or, pursuant to Section 66499.35, by certificate of compliance, shall not increase the limitation of this subdivision.
(i) If the city or county determines that a material breach exists, the city or county shall do one of the following:
(2) Assess the monetary penalty pursuant to subdivision (j) and terminate the contract on that portion of the contracted parcel that has been made incompatible by the material breach.
If the landowner disagrees with the determination, he or she may pursue any other legal remedy that is available.
(k) In determining the amount of a lesser penalty, the negotiators shall consider:
(n) The assessment of a monetary penalty pursuant to subdivision (i) shall be secured by a lien payable to the county treasurer of the county within which the property is located, in the amount assessed pursuant to subdivision (j) or (k). Once properly recorded and indexed, the lien shall have the force, effect, and priority of a judgment lien. The lien document shall provide both of the following:
(r)
(1) The department may carry out the responsibilities of a city or county under this section if any of the following occurs:
(s)
(1) This section does not apply to any of the following:
(2) Subject to paragraphs (4) and (5), this section does not apply when a board or council cancels a contract pursuant to Article 5 (commencing with Section 51280), or a city terminates a contract pursuant to Section 51243.5, or when a public agency, as defined by subdivision (a) of Section 51291, acquires land subject to contract by, or in lieu of, eminent domain pursuant to Article 6 (commencing with Section 51290) unless either of the following occurs:
(4) Paragraph (2) shall not be applicable for a cancellation or termination occurring after January 1, 2004, unless the affected landowner provides to the administering board or council and to the department, within 30 days after the cancellation or termination, a notarized statement, in a form acceptable to the department, signed under penalty of perjury and filed with the county recorder, acknowledging that the breach provisions of this section may apply if any of the following conditions are met: