Temecula Backyard Units: Fees, Utilities and the Covenant

The plans are drawn, the contractor is booked, and then the building official asks for two things nobody mentioned: letters from the water and sewer providers confirming service is available, and a recorded declaration of restrictions signed by you and binding on everyone who ever owns the property afterwards. Neither is expensive. Both take time you did not budget, and in Temecula both come before the permit.

A backyard unit under 750 square feet pays no impact fees in Temecula; at 750 square feet or more, impact fees are charged in proportion to the size of the main house (§ 17.23.060). Before the permit issues you must supply letters of service availability for water and sewer, and record a covenant limiting rentals to 31 days or longer.

Key numbers

The building-permit-only route

Temecula's chapter opens with an option worth understanding before anything else. For units that satisfy the state statute governing ministerially approved accessory units, the code says an applicant

shall not be required to submit an application for an ADU or JADU permit under this chapter

and may instead seek building permit approval directly (§ 17.23.030). One approval instead of two.

The city must ministerially approve a building permit in a residential or mixed-use zone for either of these:

• One accessory unit and one junior unit per lot with a proposed or existing single-family dwelling, where the unit sits within the proposed or existing space of the house or an accessory structure. An expansion of no more than 150 square feet beyond the existing accessory structure's dimensions is allowed, and only to accommodate entry and exit. The space needs exterior access, and side and rear setbacks must be sufficient for fire and safety.
• One detached, new-construction unit with 4-foot side and rear setbacks, no more than 800 square feet, at 16 feet in height — rising to 18 feet where the lot is within half a mile of a major transit stop or a high-quality transit corridor, with an extra 2 feet allowed for a roof pitch that lines up with the main house. It may be combined with a junior unit.

The covenant you have to record

This is the step that surprises owners, and it is a condition of finalling the permit. The property owner must record a declaration of restrictions, in a form approved by the city attorney, binding the property, the owner and all successors in interest to three things (§ 17.23.030):

1. The unit is rented only for terms of 31 days or longer, unless both state law and the city code are amended to allow short-term rentals.
2. The unit is not sold or conveyed separately from the primary dwelling, unless state law and the city code permit otherwise.
3. Where there is a junior unit on the property, either the junior unit or the primary dwelling must be occupied by the owner of record.

Note the third point carefully, because it is often misread. The owner-occupancy condition here attaches to a junior unit, not to an ordinary accessory unit. And proof of recordation must reach the city before it finals the building permit — so allow for county recording time in your schedule.

Fees and utilities

Fees. Sewer, water and other applicable fees are payable, including impact fees under the state's fee statutes. The exceptions are the ones that matter: units under 750 square feet pay no impact fees, and units of 750 square feet or more are charged impact fees proportional to the square footage of the primary dwelling. That is a cap on what the city may charge, not a discount you have to negotiate — and it makes 750 square feet a genuine hinge point in your design.

Utilities. The unit must have adequate water and sewer service, and that service may come from the primary dwelling's existing points of connection rather than a separate set of services — which is usually the cheaper path. But before the building permit issues, you must submit letters of service availability for water and sewer disposal to the building official. Request those early; they come from the service providers, not from the city, and they are a common source of dead time.

What counts as a kitchen

Temecula defines the unit by what is in it. An accessory dwelling unit "contains a kitchen, which may include plumbing, electrical, mechanical, and/or physical space set aside for cooking or meal preparation facilities," with room for a refrigerator, sink, wet bar or dishwasher. A junior unit must contain an efficiency kitchen — a cooking facility with appliances, plus a food preparation counter and storage cabinets of a reasonable size relative to the unit (§ 17.23.020).

An attached unit is built as a physical expansion of the primary dwelling or an existing structure and shares a common wall with it. A detached unit shares no walls at all. An "existing structure" means a single-family dwelling or accessory structure that can be safely converted into habitable space under the building standards code as amended by the city — so the condition of the garage you plan to convert is a legal question, not just a construction one.

What this article does not cover

This covers fees, utilities, the recorded covenant and the building-permit-only route. It does not give the full set of standards for units approved under the city's own permit route rather than the state one, nor Temecula's current fee amounts, which change. For the size and setback picture in one place see the Temecula ADU guide, and the Temecula jurisdiction page for the wider local context.

Sources

• Temecula Municipal Code § 17.23.020 — Definitions, and § 17.23.030 building-permit-only units
• Temecula Municipal Code § 17.23.060 — Fees and utility connections
• Government Code § 66323 — Ministerially approved accessory dwelling units