BSN GROUP.
Commercial Building Sales and Leasing in Seoul
Your Most Professional Building Partner. Setting the standard for building transactions in Korea, powered by data and our founder’s 17 years in the industry. We protect your assets with data, not intuition.
BSN is redefining the standard of building transactions in Korea.
It started with a real estate license in 2009. The Buildsanam business launched in 2016 and the corporation was established in 2017, growing into the BSN Group of today.
Korea’s First: Data Transparency
In 2016, we launched Korea’s first building transaction price app, breaking information asymmetry. The standard we created became the market standard.
System-Driven Optimization, Not Intuition
Beyond simple brokerage. We combine accumulated big data with expert manuals to prove the optimal answer for your asset portfolio with data.
One-Stop Asset Management
From acquisition to design, construction, operation, and exit. BSN, equipped with an architecture firm, construction license, and AI capabilities, completes every step as one partner.
Driven by data, not intuition.
Since launching Korea’s first building transaction price app in 2016, BSN has accumulated the longest-standing proprietary database in the real estate market. Our in-house team designs and builds AI systems directly. By adding AI to our data, we deliver faster and more accurate decisions.
Proprietary Building Transaction DB
Through operating Korea’s first building transaction price app, we hold the industry’s deepest database of transactions, market prices, and yields.
Building AI Agent (In-House)
Our AI precisely finds buildings matching your criteria and automatically analyzes yields, vacancy, and legal risks. Built in-house by BSN’s own team, not outsourced.
AI-Powered Risk Analysis
From location, ownership, leases, to market changes — AI automatically detects every risk to check before investing. Reduce risk with data, not intuition.
Data-Driven Investment Insights
Through regular market reports and blog content, we deliver data interpretation for building investment faster than anyone else.
We connect every step to maximize your asset value.
BSN Group has a subsidiary structure covering every stage of the real estate lifecycle. Beyond brokerage — design, construction, operation, and asset management — we move as one team.
Real Estate Brokerage
Building and luxury residential brokerage led by BSN Inc. Over 120 experts in Seoul and Busan deliver customized solutions combining data and experience — from commercial buildings to high-end residences in Cheongdam, Hannam, and Seongsu.
Contact UsArchitecture Firm
Remodeling and new construction design that maximizes acquired asset value. Our group directly operates a registered architecture firm, seamlessly connecting brokerage and design.
Visit SiteGeneral Construction
Holding a general construction license. We don’t stop at design — our group takes responsibility for construction quality. One partner, end to end.
Visit SiteAsset Management
BSN Group and leading asset management firms jointly operate building investment fund products. Small-scale equity investment is possible, maximizing returns through data-driven management.
Learn MoreBuilding Management
The real work begins after acquisition. From lease management, facility maintenance, vacancy resolution, to rent optimization — we protect owners’ returns and raise asset value.
Learn MoreF&B Division
We directly operate anchor tenants to drive building value-up. A new model combining BSN’s real estate expertise with F&B operations, preparing for global expansion.
Learn MoreEntertainment
Registered entertainment production company. We build unmatched media influence through real estate expert IP management and content production — from agent management to drama production.
Learn MoreBSN Study
Launched in 2016. 36 consecutive sold-out cohorts, over 2,000 students. A comprehensive building investment course by CEO Yoonsu Kim and the BSN dream team.
Learn MoreFrom Seoul to Dubai.
We meet our clients through major domestic locations and a global network.
Questions we hear most often.
Practical answers to common questions about commercial building transactions in Korea.
How much financing is available for a building?
For investment purchases, financing is commonly reviewed around 60–70% of appraised value. Owner-occupied purchases may qualify for policy-backed structures with higher limits. Final terms vary by property, borrower, and lender.
Do interest rates really vary that much by bank?
Yes. Rates and limits can differ because each lender evaluates location, use, cash flow, collateral, and the borrower differently. Comparing structures matters as much as comparing the headline rate.
Should I lower the rent to fill a vacancy?
Not automatically. First review the asking terms, fit-out condition, target tenant, and competing supply. A short incentive or a better tenant mix can protect long-term asset value better than a permanent rent cut.
Is now a good time to buy?
The right timing depends on the asset and the investor, not only on the market cycle. We review cash flow, financing, vacancy risk, and the exit plan together before recommending a decision.
Can foreign buyers purchase commercial buildings in Korea?
Yes, subject to the applicable reporting, tax, funding, and foreign-exchange procedures. The exact process depends on residency, ownership structure, and the property, so local legal and tax review is recommended.
Talk to the most professional partner, now.
Building sales, investment, design, construction — all inquiries welcome. Our building consultants provide 1:1 customized consultation.
1:1 Personalized Consultation
☎ Phone +82-2-2051-2333 Weekdays 09:00 ~ 18:00 (KST) ? KAKAOTALK KakaoTalk Live Chat