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*Fully Renovated in 2022 including light fixtures, plumbing fixtures, flooring, electrical, ceiling fans, kitchen and bathrooms! *Roomy floor plan with 4 bedrooms and large common areas *LVP flooring *Double-pane windows *Large skylight and tons of natural light *2 Fireplaces *Stainless steel appliances *Gorgeous wooden kitchen cabinets *Large patio for entertaining *MASSIVE fenced backyard w/ room to build 1 to 2 ADU(s) *Large attached 2-Car Garage *Close to schools, shopping, restaurant & freeways *Property comes with HVAC unit and central heat. The unit is designed for cooling; however no condenser/necessary adaptations are installed at the property. Happy to provide a quote for the cost of A/C upgrades if desired. Just ask! 4048 Cosmo St is zoned RS-1-7 which is a residential single unit zone and the building of 1 to 2 Accessory Dwelling Units (ADUs) ARE ALLOWED. I've attached an info sheet from an ADU builder, Snuug Homes, as a reference to different ADU options.
Listing agent: Sam West-Mensch DRE #01967459 orionnovasdre@gmail.com, Listing office: Advent Real Estate
MLS data updated 10/31/2026, 4:17:51 AM PT
Source: CRMLS, MLS #: 240013602SD
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jul 24, 2024
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
$1,080,000Closed sale · Jul 24, 2024ZIP 92111 · Jul 2024
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.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.