Building an ADU in Inglewood. Rules, costs, timeline.

Can I build an ADU in Inglewood?

Five things to know before you start

If you read nothing else here, read these. They are the five points that change the most Inglewood projects.

Everything in this section comes from IMC Chapter 12, Article 35 (§§ 12-145 to 12-150, Ordinance No. 24-02), read against Gov. Code §§ 66310–66342 and HCD’s May 12, 2025 ordinance-review letter to the City. We will not re-cite the local article on every line; assume it under each heading unless we say otherwise.

How many units an Inglewood lot allows

The ordinance and the statute give different answers, and the statute wins. Here is the stack state law requires on a lot with a single-family home:

Three accessory units on top of the house you already have. Most Inglewood homeowners assume the limit is one, because that is what the ordinance says on its face.

Multifamily lots

If your property holds an existing apartment building, the numbers are larger and the ordinance is further behind. SB 1211 amended Gov. Code § 66323(a)(4)(A)(ii) effective January 1, 2025. It allows up to eight detached ADUs on a lot with an existing multifamily dwelling, capped at the number of existing units. Clause (iii) allows two on a lot with a proposed multifamily dwelling. Inglewood’s text still says “not more than two detached,” and HCD’s Finding 1 tells the City to add the SB 1211 language. Converted units in non-livable space are separate again, at a minimum of one and up to 25 percent of the existing unit count.

Owner-occupancy and the ADU covenant

You do not have to live on the property. Gov. Code § 66315 bars a city from imposing an owner-occupancy requirement on an accessory dwelling unit. HCD’s Finding 8 went further: requiring a recorded covenant before an ADU building permit issues is itself an impermissible additional standard, and the City must remove it for ADUs.

A junior ADU is the exception, and a narrower one than the local text suggests. IMC § 12-150(g) requires the single-family home containing a junior ADU to be owner-occupied and cites a statute repealed in 2024. AB 1154, effective January 1, 2026, amended Gov. Code § 66333(b) so owner-occupancy reaches only a junior ADU that shares sanitation facilities with the house. Give the junior unit its own bathroom and the requirement does not apply to you, whatever the ordinance still says.

What an ADU costs in Inglewood (2026)

Our Signature plans are fixed-price, and the number is the same whether the lot is in Inglewood, Torrance or the Valley. Construction is separate: once your plans are permitted, you build it yourself, bring your own licensed contractor, or build with one of our vetted construction partners. The figures below are the estimated cost to build each model with an independent licensed general contractor.

City fees

Inglewood does not publish a flat ADU fee. Building permit and plan check fees are set from construction valuation, so they scale with what you build, and the City’s Applications & Fees page carries the current schedule. Rather than print a number we cannot source, we pass these through at cost and itemize them for your specific lot before you commit. One line is worth asking about directly. IMC § 12-39.50 sets a Site Plan Review fee, and the City’s own ADU guidance still applies it to some new-construction ADUs. HCD says it should not (see the permitting section).

Impact fees are the part state law controls, and the line is sharp. An ADU of 750 square feet or less is exempt outright (Gov. Code § 66311.5(c)(1)), and one under 500 square feet is also outside school impact fees (§ 66311.5(c)(3)). Above 750 square feet, fees must be charged in proportion to the ADU’s size relative to the house, not at the full rate a new home would pay. Inglewood writes its own exemption as “less than” 750 square feet (IMC § 12-147(f)), which is a shade narrower than the statute at the boundary itself; the state figure controls.

What it returns

Long-term tenancy is the only option here. IMC § 12-148 requires rental terms of 30 days or longer and bars short-term rental use, and state law sets the same floor for units approved on the § 66323 track (Gov. Code § 66323(e)) and for junior ADUs (§ 66333(g)).

For a government benchmark, HUD publishes Fair Market Rents for the Los Angeles–Long Beach–Glendale metro area. Read them as a floor rather than a forecast: they cover the whole metro across all housing stock and ages, including units decades older than anything you would build.

A new, well-finished detached ADU typically rents above these figures. Every Signature Home maps onto a band — the Melrose rents as a two-bedroom, the Lincoln as a three — and the full lineup with build costs is in the table above. For payback math keyed to your lot and financing assumptions, use the ADU ROI calculator.

HUD FMR figures: FY 2026 Fair Market Rents, Los Angeles–Long Beach–Glendale HUD Metro FMR Area, as revised effective May 21, 2026 (91 FR 21301, published April 21, 2026). No published Inglewood-specific rent survey is available to cite, so none is estimated here.

Why the Inglewood market rewards the build

Inglewood has changed faster than almost any city in Los Angeles County. SoFi Stadium, the Intuit Dome and the Kia Forum sit inside a city of established single-family neighborhoods, minutes from LAX and on a rail line that did not exist a decade ago. That mix of jobs, transit and event traffic supports a deep pool of long-term renters looking for private, legal, well-built units.

The regulatory picture cuts the owner’s way too, in a manner that is unusual and worth naming. Most cities’ ADU ordinances drift out of date quietly. Inglewood’s has been audited: a state agency read it, found sixteen defects, and published the list. An owner who designs to the statute rather than to the local text is not making an aggressive argument — they are building to the rules the state has already said apply.

When an ADU isn’t the right move

A guide that never says “not you” is a brochure. Four situations where an Inglewood ADU is the wrong call, or the wrong call right now.

• Your plan depends on nightly rental income. The 30-day minimum in IMC § 12-148 is recorded on title in the covenant, and Gov. Code § 66323(e) sets the same floor from the state side. If short-term rental is the business case, there is no version of this that works.
• You are counting on selling the unit separately. Inglewood has not opted in under AB 1033, and the ordinance bars separate conveyance. The one path state law forces open runs through a qualified nonprofit under Gov. Code § 66341 and does not describe a typical homeowner sale.
• You wanted a two-story detached building. The detached envelope tops out at 20 feet on the most favorable lot in the city. Two stories means going attached, at the lower of 25 feet and your zone’s limit for the house — a different building against a different wall, not the same project with an extra floor.
• Your house is small and your plan needs the space. The local size caps key off the primary dwelling, so a small house shrinks the ADU on the face of the ordinance. State law protects 800 square feet, and we will make that argument — but if your plan needs 1,000, a small primary dwelling is a real obstacle to price in before you start.

The rules that make Inglewood different

Where the ordinance falls behind state law

Most cities’ ADU ordinances drift out of date as the Legislature amends the statute year after year. Inglewood’s is a documented case. On May 12, 2025 the California Department of Housing and Community Development reviewed Ordinance No. 24-02 under Gov. Code § 66326(a) and issued sixteen numbered findings of noncompliance, giving the City 30 days to respond. As of our last reading of the code on 26 August 2026, every section of Article 35 still carries the original December 2023 adoption credit and the City’s code publisher shows no pending amendment.

These are the findings that change what an Inglewood homeowner may build:

Renting under the Housing Protection Ordinance

Inglewood regulates residential rents citywide, which most of its neighbors do not. The Housing Protection Ordinance took effect as Ordinance No. 20-03 on December 5, 2019 and was amended by Ordinance No. 21-09 in 2021; the just-cause provisions sit at IMC § 8-123. It does three things an ADU owner should price in before signing a lease.

The exemption is the part that matters to a new build. The City’s Housing Protection tables list residential construction within the past 15 years as exempt from both the rent-increase limits and the eviction protections. A newly built ADU therefore starts outside the ordinance and comes under it as it ages, which is a very different underwriting assumption from a unit that is covered on day one.

Short-term rental and separate sale

Both are closed, and one of them is closed more firmly than the ordinance says. IMC § 12-148 requires a 30-day minimum rental term, bars short-term rental use by name, and records both in a covenant with the Los Angeles County Recorder. State law backs the 30-day floor rather than fighting it: Gov. Code § 66323(e) and § 66333(g) require a term longer than 30 days on the exempt track.

Separate sale is where the ordinance overreaches. It bans separate conveyance outright. AB 1033 lets a city opt in to condominium sale of an ADU under Gov. Code § 66342, and Inglewood has not adopted an opt-in, so that door is genuinely shut. But Gov. Code § 66341 is a different statute with no opt-in requirement: a qualified nonprofit that built the unit may convey it separately to a qualified buyer, and HCD’s Finding 7 orders the City to amend its ban to say so. It is a narrow route, and it is not the one most homeowners are asking about.

Recent state-law changes that apply here

Inglewood has no Coastal Zone, no very-high fire hazard severity zone and no hillside overlay. The city sits on the flat Los Angeles coastal plain, which is why this section is about paperwork rather than terrain.