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Explore San Francisco's exciting restaurants, nightlife, and shops while staying at the most stylish boutique hotel in the iconic Castro District. Thoughtfully designed, efficient rooms offer a relaxing atmosphere for solo travelers or couples looking for an intimate escape. You will be awestruck by the one-of-a-kind mural highlighting a historic LGBTQ+ hero unique to each room, along with the luxurious in room amenities; including local bath products, high-end linens, and a Nespresso machine. Whether visiting for business or pleasure, come experience the contemporary, tech savvy hotel for yourself! This virtual service hotel offers 24/7 guest support by text or phone.


  • City center
  • AC



Best rate guaranteed!

We’ll match it.


The Kasa Hotel experience

Your Kasa comes loaded with amenities and perks

24/7 Virtual Guest Experience team

24/7 Virtual Guest Experience team

Free high-speed Wi-Fi

Free high-speed Wi-Fi

High-quality bed & bath products

High-quality bed & bath products

Great location

Great location

Kasa amenities



4230 18th Street, San Francisco, CA 94114


Total rating: 4.54 based on 180 reviews.
  • Briona review score of 5 out of 5


    From Booking.com • Jan 25, 2023

  • Fannie Zhang review score of 5 out of 5

    Stayed here recently for two nights with my Partner and really enjoyed it. The location is amazing in the heart of the Castro with bars, restaurants and boutiques right out the front door. I loved the contactless check in (no lobby) and going straight to my room. The rooms are small (reminds me of NYC hotel), but programmed nicely with abundant storage. Super comfy bed and cool private balcony overlooking the Castro. Enjoyed the rooftop lounge area and firepit. The views are amazing. I highly recommend getting a drink at the ground floor bar (Lobby Bar) is a super chic space with yummy bites and a great cocktail program. This little boutique hotel was a gem and I will be back.

    From Google • Jan 20, 2023

  • Marcos review score of 5 out of 5

    cozy, modern comfort in a lively area made rainy days easier to get through
    great wi-fi upload/download speeds, compact room contains many amenities, and intuitive check-in/out made the trip seamless

    From Booking.com • Jan 16, 2023


Kasa policies

  • Check-in: After 4 pm
  • Checkout: Before 11 am
  • No smoking of any kind
  • No pets
  • No parties or events
  • No luggage storage
  • Can't receive mail or packages

Cancellation policy

The cancellation policy depends on which rate plan you select when you book a Kasa.

Learn more about cancellation policies


  • We may pre-authorize your credit card up to $500 as a security deposit.

  • For your safety and the safety of our communities, all guests must consent to our Privacy Policy and acknowledge that Kasa may perform a background screening during the booking confirmation process.

Read our full terms and conditions

Have a question? We're here to help.

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