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The idyllic age of 1920's California reveals itself throughout this cherished Mediterranean home in Pasadena's Prospect Park district. Registered under the Mills Act and remodeled with an eye towards preservation, 551 Prospect Boulevard resonates with character and quality in a comfortable and welcoming manner. Indoor/outdoor rooms seamlessly connect the distinct living and entertaining areas, leading guests on a romantic journey of discovery. Each space of this home has been thoughtfully curated, creating a spellbinding impression that excites the senses. The vintage style kitchen is the heart of this home and opens to multiple dining areas, including a dramatic starlit'' sala with a wood-fired pizza oven. A dramatic tile-faced stairway with wrought iron railings leads to the upper floor. With 4 total bedrooms and 4 baths, the practical layout provides a downstairs bedroom/bath, an upper level master suite with a cozy fireplace, and 2 additional bedrooms and a bath. An upper level office has the potential of being a 5th bedroom with bird's-eye views of the treetops and gardens below. The grounds are enchanting, with meandering pathways, terraces, and fountains all leading to a destination swimming pool and secret garden'' regulation surface bocce court.
Listing agent: Peter Martocchio DRE #01311046 peter.martocchio@sothebyshomes.com, Listing office: Sotheby's International Realty, Inc.
MLS data updated 10/20/2026, 11:38:05 PM PT
Source: CRMLS, MLS #: P0-316006341
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Aug 24, 2016
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 91103 · Oct 2026
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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.