Kenya's premier luxury real estate firm, dedicated to exceptional service and unparalleled expertise in the property market since 2009.
Founded in 2009 by Costin Simiyu, Costin Realtors began as a boutique real estate firm with a simple mission: to provide unparalleled service in Kenya's luxury property market. What started as a small team has grown into one of Nairobi's most trusted real estate companies.
Our journey has been marked by continuous growth, innovation, and an unwavering commitment to our clients. We've successfully facilitated over 500 property transactions, from luxury residential homes in Karen and Runda to prime commercial spaces in Westlands and Upper Hill.
Today, we stand proud as industry leaders, known for our integrity, market expertise, and dedication to making every property transaction a seamless experience. Our team combines deep local knowledge with international best practices to serve both local and international clients.
To be Kenya's most trusted real estate partner, providing exceptional service that exceeds expectations while building lasting relationships based on integrity, expertise, and results.
To transform Kenya's real estate landscape through innovation, professionalism, and unwavering commitment to client satisfaction, setting new standards of excellence in the industry.
The principles that guide everything we do
We conduct all business with the highest ethical standards, ensuring transparency in every transaction.
We strive for perfection in every aspect of our service, from property selection to client support.
We embrace technology and modern practices to provide cutting-edge real estate solutions.
Experienced professionals dedicated to your success

Founder & CEO
15+ years • Luxury Residential Properties
Costin founded Costin Realtors with a vision to transform Kenya's luxury real estate market. His deep understanding of client needs and market trends has made him one of Nairobi's most sought-after real estate professionals.

Senior Property Manager
12+ years • Commercial & Investment Properties
Michael brings extensive experience in commercial real estate and investment properties. His analytical approach and market insights help clients make informed investment decisions.

Client Relations Manager
8+ years • Client Experience & Customer Service
Grace ensures every client receives personalized attention throughout their property journey. Her dedication to exceptional service has earned numerous client testimonials and referrals.
Experience the Costin Realtors difference. Let our expert team help you find your perfect property or achieve the best value for your investment.