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Inclusionary Housing In-Lieu Fee

Levied by City of San Marcos on new development in San Marcos. Authorized under the Mitigation Fee Act - Gov. Code Sec. 66000 et seq. Collected at building permit.

This is an in-lieu option, not a charge every house pays. It is what a builder pays INSTEAD of doing something else - building the affordable units, or providing the artwork on site. A builder who does that thing pays none of it, so it is never summed into San Marcos's one-time total. It is levied per sq ft of market-rate unit; every published rate is in the table below.

The record

Why it exists

“The purpose of the Inclusionary Housing In-Lieu Fee is to provide funds to the City to develop and construct affordable housing as would otherwise be provided on-site and to mitigate the burdens created by new residential development on the need for extremely low-, very low-, low- and moderate-income housing.”

Resolution No. 2024-9387, 2024-11-26, Section 2.A, p.3 of 5 · source document ↗
What it pays for

“In compliance with Inclusionary Housing Ordinance, all inclusionary housing in-lieu fees collected shall be deposited in the City's Inclusionary Housing Fund to be used solely to provide housing affordable to extremely low-, very low-, low- and moderate-income households in the City, including reasonable administrative costs not to exceed 2% of fees collected in the previous fiscal year.”

Resolution No. 2024-9387, 2024-11-26, Section 2.B, p.3 of 5 · source document ↗
Where it applies

“The provisions of this chapter shall apply to all residential projects of one (1) or more units, including rental and for-sale market-rate dwelling units, condominium or cooperative conversions, and time extensions of development plan approvals for previously approved residential projects.”

Exhibit A to Ordinance No. 2024-1550, SMMC Chapter 20.310 Inclusionary Housing, clean version, Section 20.310.020 Applicability, Definitions, p.1 of 6 · source document ↗
When it was adopted

2024-11-26

“RESOLUTION NO. 2024-9387 — A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN MARCOS REPEALING RESOLUTION 2000-5417 AND ESTABLISHING THE AMOUNT OF FEES PAYABLE IN-LIEU OF PROVIDING AFFORDABLE HOUSING UNITS AS ALLOWED BY CHAPTER 20.310 OF THE SAN MARCOS MUNICIPAL CODE ... PASSED, APPROVED AND ADOPTED BY THE CITY COUNCIL OF THE CITY OF SAN MARCOS at a regular meeting held on the 26th day of November, 2024”

Resolution No. 2024-9387, adopted 2024-11-26, title block p.1 and execution clause p.5 of 5 · source document ↗
Who adopted it

“RESOLUTION NO. 2024-9387 — A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF SAN MARCOS REPEALING RESOLUTION 2000-5417 AND ESTABLISHING THE AMOUNT OF FEES PAYABLE IN-LIEU OF PROVIDING AFFORDABLE HOUSING UNITS AS ALLOWED BY CHAPTER 20.310 OF THE SAN MARCOS MUNICIPAL CODE ... PASSED, APPROVED AND ADOPTED BY THE CITY COUNCIL OF THE CITY OF SAN MARCOS at a regular meeting held on the 26th day of November, 2024”

Resolution No. 2024-9387, adopted 2024-11-26, title block p.1 and execution clause p.5 of 5 · source document ↗
When it is paid

at building permit

“The amount of the in-lieu fee for each required inclusionary unit shall be determined by the City in accordance with this section, and shall be paid at the time of issuance of building permits for the first residential units in a development project subject to this chapter.”

Exhibit A to Ordinance No. 2024-1550, SMMC Chapter 20.310, Section 20.310.050 In-Lieu Fee, subsection B, p.3 of 6 · source document ↗
Who collects it

City of San Marcos, the agency that levies it

“Affordable housing must be constructed as part of certain projects pursuant SMMC Chp. 20.310. An affordable housing in-lieu fee may be paid under certain circumstances. This fee is administered by the City's Housing Division and calculated at the time the fee is to be applied.”

City of San Marcos Development Fees, effective 9/1/2026, "INCLUSIONARY HOUSING IN-LIEU FEE", p.3 · source document ↗
Who is exempt

“This chapter shall not apply to the following, except at the discretion of the City: A. Any project developed pursuant to the terms of an existing development agreement entered into pursuant to Government Code Section 65964 et seq. before the effective date of this Zoning Ordinance. Inclusionary requirements, if any, shall be as set forth in such development agreement. B. Non-residential uses, except in the case of single-room-occupancy hotels. C. The construction of a new residential structure that replaces a residential structure that was destroyed or demolished within two (2) years prior to the application for a building permit, provided that the number of residential units is not increased. D. Accessory dwelling units developed in accordance with Chapter 20.410 (Accessory Dwelling Units and Accessory Structures).”

Exhibit A to Ordinance No. 2024-1550, SMMC Chapter 20.310, Section 20.310.030 Exemptions, p.1 of 6 · source document ↗
Credits and offsets

“Inclusionary unit credits. If an applicant of a new for-sale or rental development provides newly constructed off-site rental units to meet the inclusionary requirements, and such units exceed the number of inclusionary units required by this chapter, the excess units may be used to meet the inclusionary unit requirements for another applicant. Any sale of "inclusionary unit credits" shall be a civil transaction with no regulation by the City (i.e., the inclusionary unit credits may be sold at whatever price the market will bear).”

Exhibit A to Ordinance No. 2024-1550, SMMC Chapter 20.310, Section 20.310.060 Options for Providing Inclusionary Units, subsection D, p.4 of 6 · source document ↗
How it changes

“For purposes of imposition of the Inclusionary Housing In-Lieu Fee amount set by this Resolution, the adjusted amounts shall be effective as of March 3, 2025. Until that date, the prior Inclusionary Housing In-Lieu fee amount in use by the City will be used for calculation of In-Lieu fee amounts.”

Resolution No. 2024-9387, 2024-11-26, Section 5, p.4 of 5 · source document ↗

Every published rate

Every rate below applies to single-family detached.

RateBasisEffectiveAmount
unverified per sq ft of market-rate unit 1 Sep 2026 $15.41
the line this rate was read from

“AFFORDABLE UNITS % PER SMMC 20.310.040 | IN-LIEU CHARGE (PER SQ FT) — 15 % | $ 15.41”

City of San Marcos Development Fees, effective 9/1/2026, table under "INCLUSIONARY HOUSING IN-LIEU FEE", p.3 · source document ↗

About these figures

Quoted, not summarized. Every amount and fact on this page is copied from the official document it links to. If we couldn’t find something in a document, we leave it blank instead of guessing.

Before any discounts. Some fees offer credits, waivers or phase-ins. They’re listed above but not subtracted, because whether you qualify depends on your project.

Check the date. Fees change. This page shows what was in force on the date at the top, with a link to the document that set it, so you can confirm the current amount yourself. How all of this is put together.

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