
Who we are
Since 2013 we have become a symbol of innovation and professionalism in Bulgarian real estate.

We started with two offices, in Sofia and Blagoevgrad. Today we have 5 offices in the country's largest cities, a team of 137 people and deals worth over €500M.
The main reason for that success is our training system. Every consultant goes through Building Box Academy before taking on a first client, which is why there's no better place to start a career as a broker.
About the academyHow we grew
Floor by floor since 2013, from the foundations to the building that's still ahead.
Coming next
Our first building
Constructing our very own first building.
2024
Two new offices
We kept growing with a new office in Sofia and another in Plovdiv.
2023
Building Box Varna
We opened an office in our seaside capital. We're now in Bulgaria's largest cities.
2022
Building Box Plovdiv
We opened an office in Plovdiv, quickly made our mission and vision known, and changed the pace in the country's second-largest city.
2021
Building Box
We rebranded and left ERA as its best office in Sofia.

2015–2021
ERA
We became a franchise partner of the international ERA network.

2013–2015
Top Imoti
We started our story with two offices, in Sofia and Blagoevgrad.


Founder and managing director
Dimitar Kalaydzhiev
Bulgaria's best-known real estate broker, with over 400,000 followers on social media. He has spent more than 10 years in property and runs five offices in Sofia, Plovdiv and Varna.
He created the country's first real estate seminar of its kind, “Get Rich with Real Estate”. He has given hundreds of consultations, run many webinars and made dozens of appearances on TV, radio and social media.
He was the lead consultant on the TV series about brokers “Sofia at Home”, where he played himself in one of the episodes.
His books
Make Deals Like Crazy
The first book of its kind for brokers, reprinted because of huge demand.
Get Rich at 8,333 Leva an Hour
On property investing. One of the most-read titles at Ciela, with nearly 20,000 copies sold.
How to Build a Million-Dollar Team
A complete strategy for attracting, keeping and motivating people. Published in 2023.
How to Make Green from Green
Why new-build property is your ticket to wealth.
What people say about our leader
Few people are truly competent in what they do. Dimitar is definitely one of them. At our first meeting in his company's office, I was very impressed by his style and instinct for business!
I noticed Dimitar on TikTok, where he struck me as an energetic and bold new-generation broker. After reading his book, I realised he also has deep knowledge of every aspect of our business. I respect him as a colleague and keep following his progress with interest.
I admire people like Mitaka who work hard and keep growing, instead of throwing around complicated sentences about why something can't be done.
I've known Dimitar for more than 10 years. We were born in the same town, Blagoevgrad. I know his character, and whatever he takes on, he sees it through. He's persistent, a natural leader and has a strong business instinct. All of that together makes him a true professional!
Dimitar Kalaydzhiev comes across as ambitious, consistent and someone who knows what he's doing. I was convinced of it when I invited him over and he beat me 8:2 at FIFA. If I ever invite him again, it'll be to help pick the grapes at the village. This guy has an inner fire bordering on arrogance that drives him to great results and never settles for anything less than the best.
Mitko will do whatever it takes to get the job done. Determined, focused and reliable. I like him because he's direct and uncompromising. He has a sharp mind and good taste! Highly recommended!
I believe Mitko can be genuinely useful and offer an interesting perspective on the property market. I wish him success and fair winds in all his endeavours!
Brokers of the month
August

Anna Dimitrova
Sofia
No. 1
Atanaska Ivanova
Plovdiv

Ivan Dimitrov Ivanov
Varna
Our offices
All officesSofia Central
154 Tsar Simeon St, 1303 Sofia
- Opened
- 2013
- Team
- 30
- Deals
- €249.6M
Sofia South
8 Topli Dol St, Sofia
- Opened
- 2024
- Team
- 20
- Deals
- €24.5M
Plovdiv
50 Iztochen Blvd, 4000 Plovdiv
- Opened
- 2022
- Team
- 30
- Deals
- €172.9M
Plovdiv West
27 Petar Chenkov St, Plovdiv
- Opened
- 2024
- Team
- 20
- Deals
- €21.3M
Varna
21 Dimitar Ikonomov St, 9010 Varna
- Opened
- 2023
- Team
- 30
- Deals
- €31.9M
Everything your deal needs, in one place
- Mortgage advice
- Document checks and collection
- Legal support
- Property marketing
- Accounting
- Architects, designers and builders