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

6.3Good(168)
  • Value for Money
    6.4
  • Security
    6.6
  • Atmosphere
    5.9
  • Cleanliness
    4.9
  • Staff
    6.4
  • Location
    8.7
  • Facilities
    5.2
Stayed in Mar 2026
10
A
Alma
Female, 41+, USA
Thanks for everything!!! Everyone was wonderful ❤️ I definitely would like to stay there if I ever go back to Sofia... To me customer service is very important and the owner and workers are awesome, they really care about their guests!!!
Stayed in Feb 2026
2.3
R
Rhiannon
All Female Group, 31-40, England
This is the most revolting stay we have ever had. We were told one bathroom was not accessible due to maintenance work. We were then showed to the one shower available for use by the whole hostel, similar to that shown in the photos. Except, the toilet in the shower room was leaking and the area looked like it had never been clean. The shower drained into the main area of the bathroom where the laundry and sinks were located, meaning you were stepping in dirty water every time you entered the area. There wa
Stayed in Feb 2026
2.9
T
Trinela
Female, 18-24, Mexico
NIGHTMARE!!! bathrooms don’t work at all. ONE working toilet for all the hostel. the whole place stinks like garbage, it’s completely inhumane. They have a “kitchen” but everything is old, dirty, stinky and you have to wash everything in the bathrooms cause there’s no sink. The shower and toilet are one room so when someone showers on the only working toilet, it gets completely flooded and unusable. We fled after one night. It’s so bad it literally should be shut down. Do not believe the good reviews, we did and that was our biggest mistake.
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Location

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