Actually 2 buildings here

via StreetComplete 51.0

Unable to answer "What sport is played here?" for osm.org/way/930515121 via StreetComplete 51.0:

Swingsets

onosm.org submitted note from a business:
name: Majarian Law Group, APC - Los Angeles Employment Lawyers
phone: 818-646-5686
website: https://majarianlawgroup.com/
twitter:
facebook:
email:
hours: Monday – Friday 9AM-5PM
category: Lawyers
address: 18250 Ventura Blvd Tarzana, CA 91356

The road looks like it is a private road, see the gates on Bing imagery. Can anybody do a on-the-ground check?

onosm.org submitted note from a business:
name: Marco Holt
phone: (800) 568-8664
website: https://electriciansserviceteam.com/
twitter: undefined
hours:
category: ,Electronics
address: 4016 Old Topanga Canyon Rd

onosm.org submitted note from a business:
name: Sub-Zero Repairs Calabasas
phone: (818) 798 4375
website: https://subzerorepairscalabasas.com
twitter:
facebook: https://www.facebook.com/people/Sub-Zero-Repairs-Calabasas/100063705365845/
email: krupo.inc@gmail.com
hours: Monday-Sunday 9.00am-6.00pm
category: Offices
address: 4704 Park Granada Calabasas CA 91302

can someone confirm the direction of this one-way driveway is correct? seems backwards

onosm.org submitted note from a business:
name: Erick Conrad
phone: 8054940240
website: www.aureuspos.com/
twitter: undefined
hours: Monday to Friday 8 am to 6pm
category: ,Web Design
address: Thousand Oaks CA 91362

trail

Little Free Library