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

6.4Good(202)
  • Value for Money
    6.2
  • Security
    7.0
  • Atmosphere
    6.4
  • Cleanliness
    5.1
  • Staff
    6.8
  • Location
    8.0
  • Facilities
    5.6
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 Sept 2026
10
C
Ciaran
Male, 31-40, Ireland
10/10 hostel. Very clean, great location, and the staff were amazing - special thanks to Lali on reception, she was exceptionally nice and professional
Stayed in Sept 2026
7.4
N
Niklas
Male, 18-24, Germany
Don’t leave your stuff in the fridge! People take it
Stayed in Aug 2026
2.3
S
Sam
Male, 18-24, England
the property was disgraceful , over heating in the night , loud long term guests ,mosquitos bitting all night and to top it off an unsecure network that hacked into my friends phone and deleted all our pages dedicated to raising money for charity , absolutly horrific , worst hostal in my 10 years of travelling
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Location

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