503 E Mendocino
Altadena, CA, 91001
$1,899,000
5 Beds
4 Baths
3,046 SqFt
0.39 Acres
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MLS #AR26035892 image #0
Just moments from iconic Christmas Tree Lane, beyond private automatic gates and a sweeping circular drive, this updated Mid-Century Ranch reveals itself as a rare Altadena compound: serene, refined, and thoughtfully reimagined for modern living.
Set on an expansive lot, this property offers two impeccably renovated residences that feel established yet sophisticated, completed with uncompromising attention to detail.
The main home features 3 bedrooms and 2 baths, centered around a beautiful open kitchen designed for both daily living and elegant entertaining. Light pours through the interiors, accentuating clean lines, curated materials, and a seamless indoor outdoor flow. Every upgrade has been executed with intention, delivering a level of polish rarely found in homes of this era.
A detached 2 bedroom, 2 bath ADU/guest house provides exceptional versatility, ideal for multi-generational living, extended stays, executive-level home office, or private retreat space. Between the two residences, a tranquil courtyard is anchored by a built-in bbq and intimate jetted pool creating a boutique resort ambiance perfect for quiet evenings or curated gatherings.
Centrally located in one of the community’s most cherished pockets, this estate feels remarkably secluded offering rare space and discretion in Southern California. In a neighborhood defined by resilience and renewal, this offering represents not only continuity, but the opportunity to step right into a home that has already been thoughtfully elevated.
A distinguished Altadena compound designed for those who value privacy, presence, and enduring quality.

Property Details

Price:
$1,899,000
MLS #:
AR26035892
Status:
Active
Beds:
5
Baths:
4
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
604altadena
Listed Date:
Feb 27, 2026
Finished Sq Ft:
3,046
Lot Size:
16,831 sqft / 0.39 acres (approx)
Year Built:
1919
RanchPool604 – Altadena604altadenaPasadena UnifiedJohn MuirMountain(s)

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Schools

School District:
Pasadena Unified
High School:
John Muir

Interior

Appliances
DW, RF, GO, GS, HOD
Bathrooms
4 Full Bathrooms
Cooling
DUC
Flooring
TILE, WOOD
Heating
DUC
Laundry Features
GE, IN, ICL

Exterior

Architectural Style
RAN
Community Features
SUB, CRB, FHL
Construction Materials
STC, WOD
Exterior Features
BQ, RG
Other Structures
TL, GH, GHD
Parking Spots
8
Roof
CMP
Security Features
SD, AG, COD

Financial

Map

Community

Market Summary

Current real estate data for Single Family in Altadena as of Mar 03, 2026
79
Single Family Listed
64
Avg DOM
589
Avg $ / SqFt
$1,501,310
Avg List Price

Property Summary

    503 E Mendocino Altadena CA is a Single Family for sale in Altadena, CA, 91001. It is listed for $1,899,000 and features 5 beds, 4 baths, and has approximately 3,046 square feet of living space, and was originally constructed in 1919. The current price per square foot is $623. The average price per square foot for Single Family listings in Altadena is $589. The average listing price for Single Family in Altadena is $1,501,310.

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503 E Mendocino
Altadena, CA