About

Key Hostel Serdika

Extremely central! Premium comfort beds, mattresses and pillows! Fun common spaces - a bar with a view, a video game room and a kitchen! Super fast Wifi everywhere!

Key Hostel Serdika has just opened and the team poured in all our love for travel and travelers by ensuring this hostel provides all the essentials for a comfortable and fun stay and much more!

We have a bar with a Happy Hour - 4 EUR / 8 BGN for 2 cocktails - every evening from 19:00 to 21:00!

UPDATE May 6, 2025 - All private rooms now have extra comfy brand new mattresses, pillows and blankets!
UPDATE July 25, 2025 - You can now add breakfast to your stay for 12 BGN per guest per night!

BREAKFAST INFO:
Breakfast is served daily between 9:00 and 11:00 am at Sladko & Soleno Bakery, right next to the hostel at 8 Pirotska Street.
You have a choice between:
1) a very nutritious freshly baked sandwich of several options, with a cookie, or
2) a fresh tortilla wrap with a home-baked cookies, or
3) croissant (croissant sandwiches also available) with cake, or
4) banitsa (traditional Bulgarian pastry, savory and sweet options available) with a muffin.
Vegetarian options are available. Drinks are NOT included, but we highly recommend the cappuccino or home-made lemonade.

Key Hostel Serdika Policy & Conditions:

Cancellation policy: 2 days before arrival. In case of a late cancellation or No Show, you will be charged the first night of your stay.

Check-in from 1:00 PM to 10:00 PM, self-checkin available after that.
Check-out before 11:00 AM

Payment upon arrival by cash or Revolut.
Taxes included.
Breakfast not included in the base rate.

General:
No curfew
No pets allowed
No children allowed
Smoking is allowed in designated areas

House Rules

Check In

13:00 - 22:00

Check Out

until 11:00

  • Taxes Included
View House Rules

Facilities

  • Free City Maps
  • Free WiFi
  • Free Internet Access
  • Covid-19 safe
  • Luggage Storage
  • Reception (limited hours)
  • Internet access
  • Board Games
View all facilities

Reviews

6.6Good(196)
  • Value for Money
    6.4
  • Security
    7.0
  • Atmosphere
    6.2
  • Cleanliness
    5.3
  • Staff
    6.8
  • Location
    8.6
  • Facilities
    5.8
Summary of traveller reviews

Key Hostel Serdika in Sofia offers a great central location and comfortable beds. While some guests mention issues with cleanliness and bathroom facilities, many highlight the friendly and helpful staff, making it a welcoming place for travellers.

Stayed in Jul 2026
5.4
M
Maria
Female, 41+, Greece
Broken tap in bathroom. Very difficult to enter the room roommate had to come and open the door. The numbers didn't appeared all so you couldn't press all. Bathroom wasn't inside the room. It was supposed to be shares but only for roommates.Reception should be presented later than 21:30 ( in hostel world) said check in till 22:00.
Stayed in Jun 2026
2.3
E
Ebrahim
Male, 25-30, Iran
There bed bugs in my bed. Do not come to this place.
Stayed in Jun 2026
3.7
J
Jack
Male, 25-30, Australia
Fairly average stay. The hostel is in a good location and has acceptable facilities. The kitchen is often dirty. There are rarely staff members on site which makes check in difficult. Zero social atmosphere. A long term resident has access codes to all rooms and will come in as he wishes. The beds have bed bugs and another guest has found multiple bites. I found the staff rude and unapologetic despite making mistakes with my booking. Overall don’t recommend staying here. Find somewhere else
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Location

135 ulitsa "Knyaz Boris I", Sofia, Bulgaria
0.3km from city centre