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TransportationSet by regional JPA fee

SJCOG Regional Transportation Impact Fee (RTIF)

Levied by San Joaquin Council of Governments (RTIF Program); the fee itself is "established by each Participating Agency consistent with this Agreement" on new development in Lathrop. Authorized under the Mitigation Fee Act - Gov. Code Sec. 66000 et seq., adopted by each member agency; the JPA itself under Gov. Code Sec. 6500 et seq. Collected at building permit.

What one house pays

$4,420

For a typical home: a 2,000 sq ft detached house on a 0.13 acre lot, on a new subdivision lot.

Share of Lathrop's total
8%
Total one-time fees here
$55,914
Adjustment
Adjusts yearly · ENR construction cost index · July
what the document says

ENR California CCI, annually July 1

Next expected change
1 Jul 2027

The record

Why it exists

“WHEREAS, the Participating Agencies and SJCOG find and declare that the RTIF Program is necessary to help mitigate the impact of new development on the Regional Transportation Network and along with other transportation funding mechanisms, in providing for the construction of improvements to accommodate traffic generated by land development; and,”

San Joaquin County Regional Transportation Impact Fee Program Operating Agreement, revised and adopted by SJCOG April 30, 2015, Recitals, p.2 · source document ↗
What it pays for

“5.1. Purpose of RTIF Program Fees. Except as otherwise provided in this Agreement, all RTIF Program Fees received by each Participating Agency or SJCOG shall be used solely for the purpose of funding Regional Transportation Network projects as specified in the RTIF Technical Report and which are included within the RTIF Capital Projects Report.”

RTIF Program Operating Agreement, adopted 2015-04-30, s. 5.1 · source document ↗
Where it applies

“The RTIF serves as a countywide, multi-jurisdictional multimodal capital improvement funding program for San Joaquin County.”

RTIF Annual Report FY 2024/2025, updated 05.24.26, p.1, "RTIF Overview" · source document ↗
When it was adopted

2005-10 (program established); operating agreement entered April 2006

“The Regional Transportation Impact Fee (RTIF) program was established in October 2005. In April 2006, the San Joaquin Council of Governments (SJCOG) entered into the RTIF operating agreement with the eight local jurisdictions in the county to administer the RTIF program. The first full fiscal year of the RTIF program was 2006-2007. A revised operating agreement was adopted April 2015 and fully executed during the 2015-2016 fiscal year.”

RTIF Program Annual Report for FY 2024/2025, updated 05.24.26, p.1, "Introduction — Background" · source document ↗
Who adopted it

“The Regional Transportation Impact Fee (RTIF) program was established in October 2005. In April 2006, the San Joaquin Council of Governments (SJCOG) entered into the RTIF operating agreement with the eight local jurisdictions in the county to administer the RTIF program. The first full fiscal year of the RTIF program was 2006-2007. A revised operating agreement was adopted April 2015 and fully executed during the 2015-2016 fiscal year.”

RTIF Program Annual Report for FY 2024/2025, updated 05.24.26, p.1, "Introduction — Background" · source document ↗
When it is paid

at building permit

“(a). The RTIF Program Fees shall be paid at the time of issuance of a building permit for the Development Project, or as otherwise required or permitted pursuant to Government Code section 66007.”

RTIF Program Operating Agreement, adopted 2015-04-30, s. 4.1(a) · source document ↗
Who collects it

City of Lathrop (the Participating Agency), at building permit

“Each jurisdiction is responsible for collecting RTIF fees at the time a building permit is issued. Of the total RTIF collected, jurisdictions retain 75%, 10% is distributed to San Joaquin County and 15% is distributed to SJCOG. San Joaquin County also distributes 15% of total collections to SJCOG.”

RTIF Annual Report FY 2024/2025, updated 05.24.26, p.5, "Revenue Distribution/Expenditures — San Joaquin County / SJCOG" · source document ↗
Who is exempt

“4.3. Exemptions from the RTIF Program Fee. The following Development Projects shall not be subject to the RTIF Program Fee: (a). The rehabilitation and/or reconstruction of any legal, residential structure and/or the replacement of a previously existing legal dwelling unit, including an expansion of an existing dwelling unit that does not create an additional dwelling unit.”

RTIF Program Operating Agreement, adopted 2015-04-30, s. 4.3(a) · source document ↗
Credits and offsets

“10.1. Reimbursements and Credits. In the event that RTIF Capital Projects are constructed by a developer in excess of the Development Project's RTIF Program Fee obligation or in lieu of payment of RTIF Program Fees by a developer pursuant to an agreement between the developer and the Participating Agency, the developer may be reimbursed or credited for future application for any costs based on the actual costs of construction of the RTIF Capital Project incurred by the developer in excess of the amount the RTIF Program Fees that apply to the Development Project.”

RTIF Program Operating Agreement, adopted 2015-04-30, s. 10.1 · source document ↗

Every published rate

Land useApplies toBasisEffectiveAmount
East Lathrop (identical table repeated for every Lathrop fee area)
Multi-family none 1,000 sq. ft. — $3,470
the line this rate was read from

“San Joaquin RTIF 7/1/26 | Multi-Family | 1,000 sq. ft. | $ 3,470”

the levying document · source document ↗
—
Single-family detached this home per sq ft 1 Jul 2026 $2.21

1 superseded rate on file for this fee and is not shown: they are kept so a figure quoted from an older schedule can still be traced.

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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