Garden Grove ADU Market Update — August 2026: What's Active, What Closed, and What the Numbers Say
Garden Grove is one of the most consistent ADU markets in Orange County, and the August data confirms it. I pulled all the active, pending, and closed ADU listings in the city — here's what's happening right now, deal by deal.
Active Inventory: 10 Properties, $1.2M–$1.9M Range
There are currently 10 active ADU properties in Garden Grove, ranging from $1,199,000 to $1,888,000. A few things stand out in this batch.
The ADU+JADU trend is here. The brand-new listing at 12521 Aristocrat Ave ($1,650,000) is an 8-bed/5-bath home on an 8,100 sqft lot with both a freshly-built 4/2 ADU (1,200 sqft) and a 1/1 JADU (380 sqft) — all constructed in 2026. That's three rentable units on a single-family lot. This configuration isn't an accident; investors are specifically engineering these triple-unit setups to maximize income per property. When the ADU and JADU are both renting at market rates, you're looking at $4,500–$5,500/month in combined rental income on top of the main house.
Rental income is being advertised prominently. The 11841 Garnet Cir S listing ($1,888,000) shows the ADU already rented at $3,500/month. The 10382 Bonnie ADU was renting at $2,500/month (lease ending 7/31 — now available). The 13611 Glenhaven Dr triplex lists approximately $8,600/month in total rental income. The 12572 Barbara listing puts projected ADU rent at $4,000/month.
These aren't theoretical numbers — they're live rental data embedded in the listings, which is exactly what DSCR lenders look at when qualifying a loan. If you're buying with a DSCR product, a verified existing tenant makes underwriting significantly easier.
Disneyland proximity keeps appearing in listing remarks. The 11322 Salinaz Ave property ($1,399,999, 5/4, ADU 2/2 built 2023) specifically notes proximity to Disneyland. It's a recurring theme in Garden Grove — the city borders Anaheim, and the Anaheim multi-unit market shows the same premium. Theme park proximity creates a permanent demand floor for rentals that other OC cities just don't have.
New listings hit on 8/1: the Aristocrat triplex (mentioned above) and the 12572 Barbara ADU ($1,450,000, ADU 4/2 1,060 sqft, 2026-built) both just came to market. The 13071 Birchwood duplex ($1,288,000, ADU 1/1 640 sqft, 2026-built) is Coming Soon on 8/6. Fresh inventory means buyers who move quickly have a shot at negotiating before others show up.
Recent Closed Sales: 8 Transactions
Eight ADU properties closed in Garden Grove between early June and late July 2026. The range was $1,150,000 to $1,800,000.
Three properties sold over asking price:
9282 Marietta Ave — Listed $1,699,000, closed $1,800,000 on 7/10. That's $101,000 over list. It's a triplex with an ADU and JADU on a 14,303 sqft lot. 16 days on market.
11041 Jerry Ave — Listed $1,199,900, closed $1,305,000 on 7/27. $105,100 over asking, 2 days on market. Two DOM means there were likely multiple offers within 48 hours of going live.
11246 Mac Ave — Listed $1,300,000, closed $1,350,000 on 6/10. $50,000 over asking, 4 days on market.
These three tell you something important about how buyers view this market: when a well-configured ADU property is priced right, competition shows up fast. Before you buy an investment property in OC, understanding this pricing dynamic is critical — if you see a property like Jerry go live, you have roughly two days to act before it's gone.
One property closed significantly below asking:
13291 Fairview St listed at $1,349,000 and closed at $1,150,000 on 6/29 — $199,000 below list after 72 days on market. Condition or tenant issues are usually the reason for this kind of spread. When you buy a property with an existing ADU, what's attached to it — permits, tenants, lease terms — determines the real price.
Income context from the closed comps:
9022 Marlene Ave (closed $1,455,000): Combined rental income approximately $7,500/month via Section 8, per listing remarks.
11131 Mac Murray (closed $1,750,000): ADU + JADU on a 10,989 sqft lot with $10,000+/month total rental income noted.
11662 Stephanie (closed $1,335,000): ADU 2/2 800 sqft, $6,995/month in rental income.
That's a meaningful income stack. Three SoCal property benefits can compound into $68,000/year or more — and properties like Mac Murray and Marlene show that number playing out in real-world deals.
Pending: Fast and Slow
Two properties are currently in escrow.
12041 Faye Ave ($1,050,000, 3/2 with a Junior ADU) went pending 7/29 — just 5 days on market. That's the fastest move in this data set. The entry price under $1.1M and the JADU classification are almost certainly why. JADUs are governed by specific Title 24 compliance rules that are worth understanding before you buy one — the solar/energy requirements differ from a full ADU.
12081 Bangor St ($1,199,000, ADU 2/2 800 sqft under construction) has been pending since 4/21. Over three months in escrow typically signals a construction contingency, lender holdback, or permit completion requirement. Not unusual when a new ADU is being built as part of the deal.
Garden Grove's ADU Permitting Advantage
Garden Grove's Municipal Code Chapter 9.54 governs ADUs here. The city runs an "ADU Go" program — four pre-reviewed city plan sets at 447, 630, 750, and 1,000 sqft — available free to property owners. Ministerial review is targeted at 30 days. That's genuinely fast compared to most OC cities, and it's one reason new ADU construction shows up so consistently in Garden Grove listings.
California's state ADU law (administered by HCD) sets the floor that all cities must meet. Worth noting: HCD issued a findings letter dated March 30, 2026 flagging parts of Garden Grove's ordinance for potential non-compliance. The city may need to amend Chapter 9.54 in response, so if you're planning to build and want to use city-provided plans, confirm current requirements with the planning department before you submit.
What I'm Seeing
Garden Grove ADU inventory is active, priced across a wide range, and moving quickly at the entry end. The strongest demand signal in this report is 11041 Jerry Ave closing $105k over list in two days — that's not a fluke, that's a market that's still supply-constrained for income-producing properties.
The triple-unit plays (main + ADU + JADU) are becoming more common, and the rental income numbers are real — not pro formas. ADU homes generally sell for more, and the Garden Grove comps bear that out across nearly every closed sale.
If you're watching this market and want to know the moment something fits your criteria, reach out and I'll add you to the list.
Ready to Start?
If you are looking for a property with ADU potential or an already built ADU, schedule an ADU consult with Dylan Serna through call or text at (714) 860-2868
