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Building transaction database
We collect transaction, market price, and yield data through our transaction price app and brokerage work.
Commercial buildings in Seoul,
from acquisition through management.
We review properties and transaction terms using 18 years of industry experience and our transaction data.
KRW 4.3T+
Cumulative brokerage transactions
120+
Real estate professionals
18 years
Founder’s industry experience
2 offices
Seoul · Busan
Brokerage, architecture, construction, and property operations in one group.
It started with a real estate license in 2009. The Builsanam business launched in 2016 and the corporation was established in 2017, growing into the BSN Group of today.
Transparent transaction information
In 2016, we launched a building transaction price app to make transaction information easier to access.
Transaction data and review standards
We use accumulated transaction data and working standards to review each property’s return potential and risk factors.
Coordination across the group
The relevant teams collaborate across acquisition, design, construction, operations, and sale.
“Real estate must now compete on quality, not quantity.”
Yoonsu Kim · Founder, BSN Group
We combine accumulated building transaction data with analysis tools developed in-house.
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Building analysis tools
Our in-house tools help filter buildings and organize yield, vacancy, and legal-risk indicators for expert review.
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Pre-investment risk review
We review location, ownership, lease status, and market changes before an investment decision.
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Market commentary
Our market reports and articles explain transaction data and changes in the commercial property market.
The relevant teams collaborate from brokerage through property operations.
Investment decisions and execution
01
Real estate brokerage
Our Seoul and Busan teams broker commercial buildings for purchase, sale, and lease.
Request a consultation02
High-end residential brokerage
We serve rental and sales demand for high-end homes and penthouses in Cheongdam, Hannam, and Seongsu.
Visit website03
Architecture firm
Our registered architecture firm provides remodeling and new-construction design and coordinates with the brokerage team when required.
Visit website04
General construction
Our licensed general construction team carries approved designs through construction and quality control.
Visit website05
Asset management
BSN works with asset management firms on building investment products and ongoing asset review.
Ask about asset managementValue enhancement after acquisition
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Building management
We manage leases and facilities and review vacancy plans and rental terms after acquisition.
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Food and beverage
We plan and operate food and beverage businesses intended to serve as key tenants for selected properties.
Content and education
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Entertainment
We manage the media, publishing, and online activities of real estate professionals and produce content.
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BSN Real Estate Study Program
Launched in 2016, the program covers the practical steps involved in building investment.
Commercial property cases and market analysis
View all insightsSeoul and Busan.
Discuss your commercial property with our team.
We will review your inquiry and respond. Weekdays 09:00–18:00 (KST).
Frequently asked questions
Common questions about commercial building transactions in Korea.
How much financing is available for a building?
Financing depends on the property value, intended use, repayment capacity, and each lender’s review criteria.
Do interest rates vary by bank?
Yes. Compare the total cost, expected limit, and repayment terms, not only the headline rate.
Should I lower the rent to fill a vacancy?
Not automatically. Review the asking terms, target tenant, fit-out condition, and competing supply first.
Is now a good time to buy?
Review the price, lease status, financing terms, vacancy risk, and holding plan together.
Can foreign buyers purchase commercial buildings in Korea?
Yes, subject to the applicable reporting, tax, funding, and foreign-exchange procedures.