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Lake Forest ADUs

Everything about developing Accessory Dwelling Units in Lake Forest, CA

Research local zoning codes for ADU design
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Last Updated 09/21/21

The city government of Lake Forest has updated it’s local zoning codes to comply with the State ADU mandate.


Planning And Development Fees / Permit Fees

Planning and Development Fees


Fee Category

Fee or Deposit Amount

Planning and Application Fees 1

Pre-Application Review

$2,500 deposit

Parcel Map

$7,500 deposit

Tentative Tract Map

$8,000 deposit

Vesting Tentative Tract Map

$8,000 deposit

Site Development Permit (administrative)

$2,500 deposit

Site Development Permit (discretionary)

$7,000 deposit

Use Permit

$6,500 deposit

Specific Plan

$10,000 deposit

General Plan Amendment

$10,000 deposit

Development Agreement

$10,000 deposit

Zone Change

$10,000 deposit

Environmental

Initial Study (review and preparation)

$6,500 deposit

Environmental Impact Report (review) 2

$9,500 deposit

Regional Development Impact Fees 3

School Fees

$3.20 per square foot

Road Fees

$5,165 - $12,275 per unit

Fire Station Fees

$88.31 –$549.53 per unit

Library Fees

$276.17 – $298.59 per unit


Typical Single-Family Project Fees


Number of Units

50

Site Acreage

10

Per Unit Planning and Development Fees 1

Negative Declaration

$130

Tentative Tract Map

$160

Site Development Permit

$140

Final Tract Map

$21

Hydrology Study

$21

Storm Drain/Water Quality

$21

Street Improvement Plans

$21

Grading WQMP

$21

Est. Impact Fees (other agencies) 2

$18,675

Est. total per unit fees

$19,210

Est. proportion of total development cost 3

3.2%



Typical Multi-Family Project Fees


Number of Units 1

140

Site Acreage

10

Per Unit Planning and Development Fees

Negative Declaration

$46

Tentative Tract Map

$57

Site Development Permit

$50

Final Tract Map 2

$7

Hydrology Study

$7

Storm Drain/Water Quality

$7

Street Improvement Plans

$7

Grading WQMP

$7

Est. Impact Fees (other agencies) 1

$12,343

Est. Total Per Unit Fees

$12,531

Est. proportion of total development cost 2

4.2%



Development Fees and Improvement Requirements State law limits fees charged for development permit processing to the reasonable cost of providing the service for which the fee is charged. Various fees and assessments are charged by the City and other public agencies to cover the costs of processing permit applications and providing services and facilities such as schools, parks and infra- structure. Almost all of these fees are assessed through a pro rata share system, based on the magnitude of the project's impact or on the extent of the benefit that will be derived. Table H-40 provides a listing of fees the City of Lake Forest and regional agencies charge for new, standard residential development (see Appendix D for regional impact fees). The rates charged by the City are inclusive and based on standardized unit sizes. Development fees will vary from project to project depending on the specific characteristics. Table H-41 and Table H-42 summarize the total development fees for typical single-family and multi-family projects.




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ADU Design Library

Browse hundreds of models to find the right fit for your property.

ADU Model 540 sqft

36 ft x 15 ft

ADU Model 485 sqft

25 ft x 25 ft

ADU Model 470 sqft

27 ft x 25 ft

Check your property's zoning, browse designs & get contractor estimates for your ADU project:

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