Orange ADU Homes for Sale — Prices, Rents & Closed Sales (September 2026)
If you're shopping for an income-producing property in Orange, California, the ADU market is giving buyers a clear window of opportunity heading into fall. Five single-family homes with permitted ADUs are actively listed right now, two closed escrow in August, and one is already under contract. Here's exactly what the numbers look like.
What's Active Right Now
2929 E Hamilton, Orange 92867 — $1,395,000
A rare cul-de-sac ranch-style home positioned on one of the largest lots in the neighborhood at 8,856 sq ft. The main house is a 3-bed/1-bath at 1,972 sq ft, and the permitted ADU is a separately metered 1-bed/1-bath studio at 572 sq ft with its own entrance, parking, and gated backyard. Built in 1957 with the ADU added in 1997. Seller is willing to consider concessions. Priced at $707/sq ft.
390 N Milford, Orange 92867 — $1,599,000
A 3,387 sq ft, 5-bed/4-bath home built in 1960 with a 462 sq ft attached Junior ADU — its own entrance, space, and independence within the main structure. Solar panels (2017, owned). Mountain and neighborhood views. Priced at $472/sq ft, the lowest price-per-foot of any active listing this month — largely because the larger main home pulls that number down. Two stories, with an expansive upstairs primary suite.
417 N Citrus, Orange 92868 — $1,575,000 (New — 8/21/2026)
Two fully detached residences on a single parcel in the heart of Orange, steps from Chapman University and CHOC Children's Hospital. The main house is a 4-bed/2-bath, and the newly built 2-bed/1-bath ADU (built 2024, 750 sq ft) already has a tenant in place with both units individually metered and on separate addresses. If you want to understand exactly how California law defines what's allowed when two detached units share a lot, that framework is worth reading before you tour this one. Priced at $733/sq ft.
831 E Hoover, Orange 92867 — $1,700,000 (Back on Market — 8/30/2026)
A 4-bed/2-bath main home at 2,324 sq ft (built 1961) with a detached 1-bed/1-bath ADU at 500 sq ft built in 2021. Solar panels owned. Situated on 8,190 sq ft near Old Towne Orange with easy freeway access to the 5, 22, 55, and 57. Separate address, shared water meter. Priced at $732/sq ft.
11061 Meads, Orange 92869 — $1,775,000 (Pending — 8/31/2026)
The only equestrian property on this list — nearly a full acre (40,800 sq ft) in Orange Park Acres. A 3-bed/2-bath ranch home at 2,090 sq ft (built 1954) with an estimated 500 sq ft ADU perched above the detached three-car garage. Private pool, horse facilities, and sparkling grounds. Shared utilities. Already in escrow, which tells you something about how fast acreage with an income unit moves in this market. Priced at $849/sq ft.
Closed Sales — August 2026
1103 W Maple Ave, Orange 92868 Listed at $1,195,000. Closed at $950,000 on August 31 — a $245,000 gap from the final list price. The property is a 4-bed/4-bath home on 7,239 sq ft near Chapman University, with a pre-existing Standard ADU built in 1998 sharing utilities with the main house. Cash deal. Total seller concessions: $19,000 (closing costs). Buyers doing their diligence on ADU permit status on a property like this should review what your options are when the ADU history isn't airtight — the difference between a legalized unit and a grandfathered one matters at resale.
1200 W Sycamore, Orange 92868 Listed at $1,480,000. Closed at $1,465,000 on August 28 — just $15,000 under asking. This one came fully loaded: the main home was leased at $6,600/month and the newly built attached ADU (400 sq ft, built 2025) was renting at $2,000/month, producing $8,600/month in combined income and over $103,000 projected annual revenue from day one. Conventional financing. Buyer broker concession: $29,300. This is the kind of turnkey income property that rarely closes with much room left on the table — and it didn't.
ADU Rent Snapshot
Two properties in this report provide direct rent data for Orange:
417 N Citrus — 2-bed/1-bath, 750 sq ft, currently occupied (rent undisclosed, separately metered)
1200 W Sycamore (closed) — 1-bed/1-bath, 400 sq ft attached ADU renting at $2,000/month
Smaller ADUs in the 400–500 sq ft range across Orange County are generally landing in the $1,500–$1,900/month band depending on condition and proximity to employment. Orange's draw — Chapman University, CHOC, St. Joseph Hospital, and Old Towne dining and retail — supports durable long-term rental demand regardless of season.
What Buyers Should Know About Orange's ADU Market
Orange is one of the more straightforward cities in Orange County when it comes to ADU permitting. The city doesn't have a local ADU ordinance that's stricter than California's state-level HCD guidelines, which means no added local minimum lot sizes, no layered owner-occupancy requirement, and no design approval hurdles beyond what state law already sets. For buyers, that simplicity matters — it removes a layer of uncertainty that exists in cities like Anaheim or Fullerton where local rules can complicate or delay an ADU project.
The two closed sales in August tell different stories that buyers should internalize. The Maple Ave property sold at a steep discount — a probate/trust sale with an older ADU and fixer condition, pulled down by deferred maintenance and market resistance to shared-utility setups. The Sycamore property, with fresh 2025 construction and full occupancy at closing, landed within $15,000 of asking. In Orange's ADU market right now, condition and lease status at close drive price premium far more than raw ADU square footage.
Five active listings. Average list price: $1,608,800. Two closed sales averaging $1,207,500. One already in escrow. If you're an investor building a portfolio or a buyer looking to offset your mortgage with real rent, the full buyer's playbook for finding ADU-ready properties across OC is a good starting point before your next offer.
And if you're on the other side of this — a seller with a permitted ADU looking to understand how to price and position it — the complete seller's guide walks through exactly how an ADU changes your buyer pool, your marketing, and your net.
