Santa Ana ADU Market Update — August 2026: What's Active, What's Moving, and What the Closed Sales Actually Tell You
Santa Ana is one of the most active ADU markets in Orange County right now. The inventory is diverse — three units on one lot, brand-new 2026 ADUs renting at $3,650/month, old bungalows with detached income units, corner lots, R2-zoned properties — and the pricing reflects a market that investors and owner-occupants are both competing in.
Here's a full breakdown of what's on the market, what just went under contract, and what the recent closes are telling buyers about where value actually lands.
What's Active Right Now
There are roughly a dozen SFR + ADU properties currently active in Santa Ana, ranging from $960,000 to $1,680,000 in the core residential ADU market (with two North Tustin outliers at the higher end). Here's what stands out:
4721 W Oakfield Ave — $1,680,000 This is the standout listing. Three units on one lot: a 3-bed/2-bath main house (1,143 SF), a newly built 2025 JADU (500 SF), and a detached ADU (800 SF with paid-off solar). Combined rent: $8,500/month with tenants paying utilities. All three units have separate addresses and their own yards. The 2-car garage also has future potential for a possible 4th unit if city guidelines allow. At under $700/SF, the price-per-foot is competitive given the income. This is a rare three-income-stream property in a single residential parcel — the kind of setup that requires careful due diligence on each unit's permit status and utility configuration before you go under contract.
1050 W Chestnut Ave — $1,295,000 Brand-new construction on an oversized 8,432 SF lot. Both the front house (rebuilt, 1,016 SF) and the rear ADU (brand-new 2026, 1,000 SF) are move-in ready. Estimated combined income: ~$8,000/month. Ductless HVAC, quartz countertops, paid-off solar on the rear ADU, and RV access. Ten-vehicle parking. This one is priced at $642/SF across 2,016 SF of combined living space — solid for a turnkey dual-unit setup with no deferred maintenance.
1329 W McFadden Ave — $1,050,000 A corner lot in a prime Santa Ana location. 3-bed/2-bath main home plus a newly built 2-bed/2-bath ADU (677 SF, built 2026). Separate gas and electric meters. Paid-off solar. Total current rent: $6,175/month, with long-term month-to-month tenants. Located within walking distance to Northgate Market and minutes from Santa Ana College. Corner lots consistently offer more ADU flexibility in Orange County due to dual street frontage and reduced setback conflicts — and this one is already built out.
2302 W La Verne Ave — $1,224,999 Main house (3-bed/2-bath) plus detached ADU (2-bed/2-bath, 800 SF, built 2021), paid-off solar. Total rent: $6,300/month, month-to-month tenants. Over 7,300 SF lot. On market since July 21 — still fresh.
1246 S Baker St — $1,215,000 Near Mater Dei and Santa Ana College. Detached ADU is 1,000 SF (2-bed/2-bath, built 2023) with paid-off solar and central AC — one of the larger and more modern ADUs in the current inventory. Total income: $6,650/month. The ADU alone rents at $3,350/month, which is the high end for Santa Ana detached units right now. Separate utility meters throughout.
2031 S Center St — $1,139,900 Just minutes from South Coast Plaza. Main home plus a fully permitted, attached ADU (JADU, 416 SF, built 2020). Separate utility configurations on main and ADU. The property was recently reduced from $1,199,999 and sits at $726/SF — the highest price-per-foot in the active set, reflecting the premium pocket near the 405 corridor. Currently vacant and turnkey.
122 N Bewley St — $1,200,000 An R2-zoned property — one of the few in the active inventory. Main house (4-bed/2.5-bath, 1,551 SF, fully renovated) plus a newly constructed ADU (783 SF, 2-bed/1-bath, built 2025) with paid-off solar. Extensive renovations: new roof, PEX plumbing, new electrical panel, mini-split HVAC throughout. The R2 zoning gives this property more long-term flexibility than a typical R1 lot.
408 S Flower St — $999,999 Being delivered vacant — uncommon in Santa Ana right now, where most ADU properties are tenant-occupied. 3-bed/1-bath main (1,148 SF) plus a detached ADU (1-bed/2-bath, 574 SF, built 2021). The garage at the rear of the lot accommodates two cars. Turnkey condition throughout.
813 E Chestnut Ave — $995,000 A 4-bed/3-bath SFR on an oversized 7,516 SF lot with alley access and a detached "bonus structure" ADU (described as finished with drywall, recessed lighting, and a full bath — though listed at only 120 SF per owner). Electric driveway gate, newer PEX plumbing, ABS sewer, tankless water heater, zoned HVAC. Good bones, strong systems, room to run.
1621 S Diamond St — $999,999 New to the market (listed July 24). Two houses on a single corner lot. Front house: 5-bed/2-bath, 1,693 SF (with permitted den addition), renting at $3,450/month. Rear detached ADU: 2-bed/2-bath, 800 SF, built 2026 with paid-off solar, renting at $2,600/month. Total: $6,050/month. Sold as-is.
1922 Meriday — $960,000 The lowest-priced active listing in the set, and notably the only one being marketed primarily as an ADU development opportunity rather than an existing two-unit. It's a 3-bed/2-bath SFR on a 6,324 SF lot, recently remodeled, with an empty ADU section listed on the MLS but essentially unbuilt. The seller notes ADU and JADU potential, buyer to verify with the City of Santa Ana. Priced reduced from $990,000 in late July.
1825 W 2nd St — $1,100,000 Small main house (2-bed/1-bath, 832 SF) plus a detached ADU (3-bed/1-bath, 800 SF, renting at $2,200/month). The ADU is notably larger and more bedroom-dense than the main home — an unusual configuration. No parking with the ADU. Walking distance to schools, shopping, and restaurants. Listed at $1,322/SF on the main house square footage — elevated, reflecting the land value and income potential more than the house itself.
What's Under Contract
1411 W 7th St — $1,375,000 Both units rented, both new construction. The ADU is a brand-new 3-bed/2-bath (990 SF, built 2026) renting at $3,650/month. The SFR is a fully remodeled 3-bed/2-bath (991 SF) renting at $3,590/month. Total income: $7,240/month with tenants paying all utilities. This went under contract after 125 days on market — the longest sit in the active set — suggesting the price required some buyer education. But $7,240/month in combined income on a $1,375,000 purchase is the kind of math that eventually wins. If you're qualifying a loan using this type of ADU rental income, the rules vary by lender and loan program — it's worth getting clarity on how much of that income counts before you write the offer.
1205 S Flower St — $975,000 A renovated 1930s bungalow (2-bed/1-bath, 901 SF) plus a detached ADU (1-bed/1-bath, ~400 SF) in the walkable Wilshire Square neighborhood. Walk Score of 97 — among the highest in Santa Ana. The property also has potential to build a second ADU per the listing. Went under contract July 6. Under contract at $975,000 against a $999,000 original list — came down, found a buyer.
What Just Closed
2521 W Stanford St — Closed $815,000 (listed at $780,000) This one is notable: it closed $35,000 over list price. The property is a remodeled 2-bed/1-bath SFR (748 SF) with ADU plans in place for the detached garage — no ADU built yet, just permitted plans. The buyer used VA financing. $36,300 in total seller concessions (toward closing costs) were part of the deal. Despite the concessions, the close price exceeded list, which tells you the demand is real at the entry level of this market, even for properties where the ADU is still on paper.
1055 W Pine St — Closed $779,000 (listed at $785,000) A 3-bed/2-bath SFR (1,100 SF) with a small attached ADU-style space (250 SF, estimated). The ADU was listed without permits — a detail worth noting. Closed slightly under list, cash buyer, 14 days on market. Quick close at a modest discount. An unpermitted ADU affects appraisal, financing, and what you inherit as a buyer — in this case the cash buyer sidestepped the appraisal question, but it's a real variable to underwrite.
1815 N Westwood (West Floral Park) — Closed $950,000 (listed at $1,025,000) This one tells the most important story. The main house is a 2-bed/2-bath (approx. 1,545 SF) in the highly desirable West Floral Park neighborhood. The detached studio ADU (267 SF) was built without permits and explicitly noted as such in the MLS. The property sold $75,000 below list and $145,000 below the original ask of $1,095,000. The buyer received $29,000 in combined concessions on top of the reduced price. The neighborhood is premium — West Floral Park commands some of the highest values in North Santa Ana — but the unpermitted ADU created real friction and cost the seller a significant amount of negotiating leverage. This is what an unpermitted ADU looks like at the negotiating table.
What the Numbers Are Saying
A few patterns emerge from the full data set:
ADU rent in Santa Ana right now: Detached 2-bed/2-bath ADUs (800–1,000 SF, built 2023–2026) are renting between $2,600 and $3,650/month. JADUs and smaller attached units land between $2,000 and $2,500/month. The three-income-stream setup at 4721 W Oakfield — with a JADU at $2,000 and ADU at $2,900 — shows what newer, well-separated inventory commands.
Combined income benchmarks: Two-unit SFR + ADU properties in Santa Ana are generating $6,000–$8,500/month in combined rent. The upper end involves either a three-unit setup or two newer, larger units. These income numbers are worth understanding clearly before you try to use them to qualify for your mortgage — not every lender counts ADU income the same way, and Fannie Mae's guidelines for ADU income require specific documentation to qualify.
Price-per-SF range: $401/SF (two houses, somewhat sparse listing detail) to $726/SF (high-demand pocket near South Coast Plaza, attached JADU). The sweet spot for most buyers is $575–$700/SF for a well-positioned two-unit.
Permits matter at close: Three of the most recent closed/active listings involve unpermitted or partially unpermitted ADU structures. Two of them (West Floral Park and Pine St) closed at discounts directly attributable to that permit status. The third (Stanford St) sidestepped the issue with cash financing. California's HCD sets the baseline standards for what qualifies as a permitted ADU — and Santa Ana's planning division enforces those locally. Buyers who skip the permit check are underwriting a risk they haven't priced.
Tenant-occupied inventory is the norm: Of the active and pending listings, the vast majority have tenants in place — often month-to-month, sometimes with leases running into 2027. Buying a tenant-occupied property in Orange County comes with specific obligations that should be understood before you write an offer, not after you're in contract.
Comparison to adjacent markets: Garden Grove's ADU market has more comp depth and volume at this point in the cycle. Santa Ana has more inventory diversity — from $960K ADU-potential SFRs all the way to $1.68M three-unit configurations — but individual deals still move the needle significantly here. Pricing your offer right on the front end matters more than in a market with thicker comp support.
Bottom Line
Santa Ana's ADU market is active, income-rich, and carrying real complexity underneath some of the listing descriptions. The rental income is strong — $6,000–$8,500/month on well-configured two and three-unit properties — and there's genuine inventory across a wide price range right now.
But the closes tell you something important: permit status, unit separation, and how you're financing the deal all have real dollar consequences. The $75,000 haircut in West Floral Park didn't happen because the neighborhood was weak. It happened because the ADU wasn't permitted.
If you're looking at Santa Ana ADU properties right now and want to understand what a specific address actually pencils out to — income, financing, permit history, and what the comp data says it's actually worth — reach out. This is exactly the kind of due diligence I walk buyers through before they make an offer.
Data sourced from CRMLS active, pending, and closed listings in Santa Ana as of August 4, 2026. All figures are approximate; buyers are advised to independently verify all property information.
