680 42nd St

Property Overview
680 42nd St is the kind of property that rarely comes along—beautifully updated 2423 sqft duplex that lives effortlessly like a single-family home w/ a true in-law/adu. With 3BD/2BA upstairs, plus 2BD/1BA down, the layout has the perfect balance of togetherness & separation, idealfor multi-generational living, long-term guests, work-from-home flexibility,or income potential. Behind its clean, timeless exterior, the upper residence feels bright, calm, & thoughtfully curated. Sunlight fills spacious living/dining areas where warm wood floors & crisp white walls create a gallery-like backdrop for everyday life. The kitchen is polished with classic white cabinetry, stainless appliances including a chef-grade gas range, designer fixtures, generous counter space,& a breakfast nook. Upper bedrms—includes stylish primary suite—offers comfort & privacy, complemented by updated bathrooms. Downstairs 2BD/1BA is perfect as guest quarters, creative studio, office haven,or full 2nd unit. Attached garage offers interior access to the upper unit, tons of storage/utility space, laundry rm,& bonus space for workshop or office. Sunny spacious backyard completes the home w/ room to dine, play, & unwind. Plus, incredible avocado tree! Located in North Oak/Longfellow, just moments to Temescal/BART/580
Home Details
- Property type
- Residential - SingleFamilyResidence
- Year built
- 1925
- Living area
- 2,423 sq ft
- Lot size
- 3,900 sq ft
- Parking
- 2 spaces
- Garage
- 2 spaces
- Days on market
- 10
- MLS status
- Active
- Architectural style
- Contemporary,Craftsman
Features & Amenities
Interior
- Breakfast Area
- Utility Room
Parking
- Garage
- Other
Pool
- None
Lot
- Back Yard
- Garden
- Sprinklers In Rear
- Sprinklers Timer
Community, Schools & Utilities
Community
- Subdivision
- Longefellow
Utilities
- Heating
- ForcedAir
- Cooling
- None
- Sewer
- PublicSewer
Location & Neighborhood
Frequently Asked Questions
Homeowner resources
Certified San Diego home inspectors
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“Reza was the best agent we have ever worked with.”— Russell & Susan McQueen
Listing Agent

