$1,695,000
4,163
SQ FT
$407
SQ/FT
21 Castenada Ave
@ Alton Avenue - 4 - Forest Hill, San Francisco
- 5 Bed
- 5 Bath
- 4 Park
- 4,163 sqft
- San Francisco
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Sat May 23, 11:00 am - 1:00 pm
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Sun May 24, 11:00 am - 1:00 pm
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Mon May 25, 12:00 pm - 2:00 pm
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Tue May 26, 1:00 pm - 3:00 pm
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Wed May 27, 3:00 pm - 4:30 pm
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Thu May 28, 10:00 am - 12:00 pm
Incredible Opportunity! Awaiting transformation in a prime location. Contemporary hillside home w/elevator on a serene block in Forest Hill. This expansive residence offers 5 bedrooms, 4 full and 2 half baths, a spacious family/media room, multiple potential den and office spaces, several decks, 2-car side-by-side garage. Dramatic great room w/soaring double-height ceilings and walls of windows framing views toward the western slope of Twin Peaks. Kitchen w/island and premium appliances, wet bar, and powder room complete this level. On the top floor is the luxurious primary suite w/French doors to a Juliet balcony. Spa-like bath w/soaking tub, separate walk-in shower, generous walk-in closet, and additional half bath. Also on this level is a second en-suite bedroom w/access to the rear deck, plus flexible area for office or sitting room. Main entry floor from street level features an en-suite bed and full bath and den, both opening onto a shared deck. On the mezzanine level overlooking the great room are two additional bedrooms, a full bath, laundry room, plus additional den or lounge area. Beneath the great room is a large family/media room w/its own deck and full bath. The lowest level features storage and bonus space w/endless possibilities for a gym, studio, workshop, wine storage, or an additional office, plus access to the backyard. In addition to the 2-car garage, there is room for 2 additional cars in the driveway. Built in 2009.
- Days on Market
- 0 days
- Current Status
- Active
- Original Price
- $1,695,000
- List Price
- $1,695,000
- On Market Date
- May 22, 2026
- Property Type
- Single Family Residence
- District
- 4 - Forest Hill
- Zip Code
- 94116
- MLS ID
- 426132865
- APN
- 2819030
- Year Built
- 2009
- Stories in Building
- 0
- Possession
- Close Of Escrow
- Data Source
- SFAR
- Origin MLS System
Clarendon Alternative Elementary School
Public K-5 Elementary
Students: 555 Distance: 0.3mi
West Portal Elementary School
Public K-5 Elementary, Coed
Students: 594 Distance: 0.5mi
Hoover (Herbert) Middle School
Public 6-8 Middle
Students: 971 Distance: 0.6mi
Maria Montessori School
Private K-5, 8 Montessori, Coed
Students: NA Distance: 0.6mi
St. Brendan Elementary School
Private K-8 Elementary, Religious, Coed
Students: 311 Distance: 0.6mi
Academy Of Arts And Sciences
Public 9-12
Students: 358 Distance: 0.7mi
- Bed
- 5
- Bath
- 5
- Parking
- 4
- Attached, Enclosed, Garage Door Opener, Garage Facing Front, Interior Access, Side-by-Side, Uncovered Parking Spaces 2+
- SQ FT
- 4,163
- SQ FT Source
- Unavailable
- Lot SQ FT
- 3,330.0
- Lot Acres
- 0.0764 Acres
- Possession
- Close Of Escrow
- Special Listing Conditions
- None
- Fee
- $613
- Name
- Forest Hill Association
MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.
School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.












































