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Welcome to Balboa Island.. a wonderful magical island that offers walkability on a sidewalk that circles the bay- from downtown with shops, restaurants and the famous Dad's Balboa Bars ! The homes are an eclectic mix of styles from vintage cottages, eastern seaboard, Mediterranean masterpieces, modern farmhouse and modern contemporary. 129 Agate is a work of art ! Rich woods with intricate carvings, Venetian plaster walls, stone floors all evoke memories of Tuscany and the great artisans of the times. The main floor consists of a living room that opens to the spacious front patio where one can engage with the residents, as is customary, on this social island. The kitchen has an island with breakfast bar, and open dining room for casual dining.Also, direct garage access, laundry room and powder room.The private adjacent courtyard with it's soothing fountain provides outdoor environs. The second floor has 4 bedrooms ( one being used as an office) and 2 baths- both with 2 sinks. There is a family room adjacent to the office. The master has an attached deck. The roof top deck with private spa is a wonderful place to sun or catch the sunset colors and views of Fashion Island and the bay. Come enjoy what Balboa Island is all about. Virtual tour, 3D tour and floorplan in the supplements under VT.
Listing agent: Coleen Brennan DRE #01003247 coleen.brennan@evusa.com, Listing office: Engel & Voelkers Newport Beach
MLS data updated 10/23/2026, 9:46:52 PM PT
Source: CRMLS, MLS #: NP20196170
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Aug 25, 2021
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
No recordNo property-price record in this range.ZIP 92662 · Oct 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.