(

a) A city or county that has an internet website shall make a fee estimate tool that the public can use to calculate an estimate of fees and exactions for a proposed housing development project available on its internet website. A city or county may choose the format of the fee estimate tool.

(1) The fee estimate tool shall calculate an estimate of fees for a proposed housing development project, including, but not limited to, the following: (

A) A fee or charge described in the Mitigation Fee Act (Chapter 5 (commencing with

Section 66000),

Chapter 6 (commencing with

Section 66010),

Chapter 7 (commencing with

Section 66012), except

Section 66013,

Chapter 8 (commencing with

Section 66016), and

Chapter 9 (commencing with

Section 66020)). (

B) In-lieu fees for affordability requirements. (

C) A construction excise tax. (

D) In-lieu fees for a requirement that the housing development project provide public art. (

E) In-lieu fees for dedications of parkland imposed pursuant to

Section 66477. (

F) A special tax levied on new housing units pursuant to the Mello-Roos Community Facilities Act of 1982 (Chapter 2.5 (commencing with

Section 53311) of Part of Division of Title 5).

(2) A city or county shall not be responsible for the accuracy of the estimate provided by the fee estimate tool. A city or county may include a disclaimer regarding the accuracy of the estimate calculated on its internet website under this section. (b)

(1) A city or county with a population of greater than 500,000 shall meet the requirements of this

section on or before July 1, 2031.

(2) A city or county with a population of 500,000 or fewer shall meet the requirements of this

section on or before July 1, 2032. (

c) For purposes of this section, the following

definitions apply: (1) “Affordability requirement” means a requirement imposed as a condition of a development of residential units, that the development include a certain percentage of the units affordable for rent or sale to households with incomes that do not exceed the limits for moderate-income, lower income, very low income, or extremely low income households specified in Sections 50079.5, 50093, 50105, and of the Health and Safety Code. (2) “Housing development project” means a use consisting of any of the following: (

A) Residential units only. (

B) Mixed-use developments consisting of residential and nonresidential uses with at least two-thirds of the square footage designated for residential use. (

C) Transitional housing or supportive housing.