SUMMARY

Analysis of 637 W Altadena Drive, Altadena, California 91001 is currently available with a list price of $1,095,000. The property maintains a Fair Condition Rating (50/100), suggesting the property is in acceptable condition with potential for value enhancement through selective updates and improvements. Located in a high-demand neighborhood within the Altadena Unified School District, this asset is categorized as a low-risk, high-reward acquisition suitable for both Buy-and-Hold Investors and Owner-Occupants willing to undertake light renovation work.

Condition Analysis

OVERALL CONDITION SCORE

Fair

TeardownExcellent

Property is moderate renovation needed.

Built in 1963, this triplex is functional and has received recent exterior maintenance including paint, but it retains dated infrastructure. The presence of window AC units, older metal-framed windows, and the listing's own analysis regarding the need for interior modernization to reach market potential indicate the property has not undergone a full recent renovation and shows typical signs of age for its era.

PROSSTRENGTHS & OPPORTUNITIES

C2 Zoning Versatility
The rare C2 zoning provides significant flexibility for investors, offering potential for commercial use, mixed-use development, or future expansion.
Significant Rental Upside
With all tenants currently on month-to-month leases and rents below market value, there is an immediate opportunity to increase the property's capitalization rate.
Separate Utility Metering
Individual gas and electric meters for all three units minimize landlord overhead and simplify utility management for the owner.

CONSRISKS & DEFICIENCIES

Market Absorption Issues
A recent price reduction of $120,000 suggests the property may have struggled with initial market interest or valuation expectations.
Dated Infrastructure
Built in 1963, the property likely requires ongoing capital expenditures for interior modernization and system upgrades to achieve top-of-market rents.
Limited Unit Diversity
The unit mix is restricted to 1 and 2-bedroom layouts, which may exclude larger family demographics looking for 3+ bedroom rentals in the Altadena area.

About 637 W Altadena Drive

PRICE RECENTLY REDUCED!! Welcome to 637 W Altadena Drive--a rare C2-zoned triplex offering versatility and income potential in one of Altadena's most desirable areas. This two-story property, built in 1963, consists of three well-laid-out units: two 2-bed/1-bath units and one 1-bed/1-bath unit, totaling 2,887 sq ft of living space. All units have separate gas and electric meters. The exterior of the building was recently painted along with other repairs.Ideal for an investor, an owner-occupant seeking rental income, or a developer exploring future possibilities. The property features four covered carport spaces with overhead storage, a shared laundry room with sink and plumbing in place, and a large separate storage room.Conveniently located just south of the Altadena Meadows and Lavina Estates, this property is minutes from hiking trails, shopping, dining, parks, schools, and major freeways with easy access to Pasadena, the Rose Bowl, and Los Angeles.Current rents are below market with all tenants on month-to-month leases--offering strong upside potential.

Property Details

Public Facts

Property Type: Triplex
Year Built: 1963
Lot Size: 6,425 Sq. Ft.

Interior

Total Bedrooms: -
Total Bathrooms: -

Exterior & Parking

No exterior & parking available.

Utilities & Misc

HOA Fee: $0 / Month

Neighborhood Insights

Sensitive Facilities

No sensitive facilities data found.

Neighborhood Comparison

Feature	Subject	Average Home	Neighborhood Ranking (50 Listings)
Beds	-	-	50%
Baths	-	-	50%
Square foot	2,895	2,500	67%
Lot Size	6,425	9,654	33%
Price	$1.09M	$1.09M	50%
Price per sq ft	$378	$570	33%
Built year	1963	1948	67%
HOA	$0	$0	50%
Days on market	89	218	33%

Pricing History

Listed for Sale

Feb 3, 2026

$1,095,000

$1,215,000

-10% Price Drop

Initial Listing

Price Change

Dec 7, 2025