As of Monday, April 29, the Office of the Assessor-Recorder has a new main office phone number, 628-652-8100. For the 12 months following this transition, constituents who call the Office’s prior phone number will automatically be transferred to our new line. As part of this transition, the Office is instituting key upgrades to improve the experience that San Franciscans have when calling us. To learn more, click here.

Developers who construct property with the intent to sell can file an application (Claim for New Construction Exclusion from Supplemental Assessment) with our office that provides tax relief for the completed construction. This is also commonly known as Builder’s Exclusion.

Filing Requirements
The developer must submit to the Assessor-Recorder’s Office a completed claim form prior to or within 30 days from the start of the new construction.

The property must be offered for sale. Properties that are rented, leased, or owner occupied do not qualify for the exclusion.

Builders are not required to file the claim form or notify the Assessor-Recorder’s Office if all of the following are met:

  • The property is subdivided into five or more parcels.
  • A map describing the parcels has been recorded.
  • Only single residences will be constructed on the parcels.

Tax Exclusion
The builder’s exclusion only applies to the supplemental assessment(s) for new construction. It does not apply to the property’s annual property tax, inclusive of any in-progress assessments.

Any physical activities on the property that result in visible changes such as clearing and grading land, excavation, layout of foundations, installation of temporary structures, and demolition of existing structures or fixtures.

Builders only need to notify our office within 45 days of the earliest date that any of the following occur:

  1. The property changes ownership pursuant to an unrecorded contract of sale.
  2. The property is leased or rented.
  3. The property is occupied or used by the owner or with the owner’s consent if the occupancy or use is incidental to an offer for a change of ownership, including, but not limited to, use of the property as a model home.