Our Executive Staff

Ahmet KARABIYIK
Chairman of the Board

He graduated from Yıldız University, Department of Surveying and Cadastre Engineering in 1991. He started his professional career in 1993 as Survey Project Manager and worked as Field Engineer, Project Manager, Technical Manager, Project Manager in various construction and engineering companies. Established his own engineering company in 1996, made numerous expropriations, zoning applications, cadastral renewal, design, exploration, quantity surveys, proposals works within the scope of project implementation and engineering works in subway, railway, highway, dam, pipeline, hotel, shopping mall, factory constructions in Turkey and abroad. He stepped into the appraisal profession in 2004, and took part in valuation studies of different assets that require experience such as real estate appraisal, land-parcel development, investment feasibility, hotels, shopping malls, hospitals, industrial facilities and power generation facilities. He founded Aden Gayrimenkul Değerleme ve Danışmanlık A.Ş. in 2016 and continues to serve as the Chairman of the Board.

Erhan SARAÇ
General Manager RICS, REV

He graduated from Yıldız Technical University, Department of Mechanical Engineering in 2007. In the same year, he started to work in the appraisal sector. In 2012, he completed the Istanbul Kültür University Project Management master's program with the thesis of "Real Estate Appraisal with Artificial Neural Networks Method". Erhan SARAÇ, who has prepared many appraisal reports at home and abroad, has served for many years as a contracted personnel (solution partner) for CMB licensed companies in appraisal works that require special knowledge and experience such as real estate, ships, machinery, tangible fixed assets, and energy facilities. In 2015, it was accepted as a member (MRICS) in the field of Machinery Appraisal by the Royal Institution of Chartered Surveyors (RICS). In 2019, he was accepted among the European Valuers with the REV (The Recognised European Valuer) certificate issued by TEGoVA (The European Group of Valuers' Associations). As of June 2019, He continues his duty as the General Manager - company partner within the Aden Gayrimenkul Değerleme Danışmanlık A.Ş.

Mustafa Lütfüllah MAZMANCI
Deputy General Manager

He graduated from Yıldız Technical University, Department of Surveying and Cadastre Engineering in 2006. In the same year, he started his career as a Field Engineer and Geographic Information Systems Specialist. He started to work as an Assistant Appraisal Specialist at Yetkin Gayrimenkul Değerleme ve Danışmanlık A.Ş in 2007, and worked as a specialist manager in various titles, including Real Estate Appraiser, Project Manager and Assistant General Manager for 12 years. During his professional life, he took part in many Real Estate Appraisal studies, including different types of private appraisal, appraisal for financial institutions for collateral purposes. Since September 2019, he has been actively working with Aden Gayrimenkul Değerleme ve Danışmanlık A.Ş. He continues his duty as the Deputy General Manager responsible for the Real Estate Appraisal Department.

Mesut KAYA
Deputy General Manager

He graduated from Kocaeli University Mechanical Engineering Department in 2009. He worked as consultant and Food Packaging Officer in various companies as a consultant. Mesut Kaya, who has a Class C Occupational Safety Certificate issued by the Ministry of Labor and Social Security, entered the valuation sector in 2010 at TSKB Gayrimenkul Değerleme A.Ş. He served as the first and founding personnel of the machinery valuation department, and served in various titles, including Appraisal Specialist, Assistant Manager, Director and Manager. Throughout his professional life; has done a duty in feasibility, machinery appraisal, technical evaluation, buyer/seller consultancy, tender consultancy, energy facilities appraisal, reporting of fixed assets in the assets of public companies and holdings over the current market value and fixed asset valuation studies, PPA, M&A studies at home and abroad . Since April 2020, he continues to work actively within Aden Gayrimenkul Değerleme Danışmanlık A.Ş. as the Deputy General Manager responsible for the Machinery Appraisal Department.

Sinan DOĞUİZİ
Deputy General Manager

He graduated from Uludağ University, Faculty of Administrative Sciences, Department of Business Administration in 1986. He started his professional career in 1988 as an accounting record officer in the Financial Affairs Department of Güntekin İnşaat A.Ş., which builds dams and hydroelectric power plants, worked as financial affairs manager at Burç Taahhüt ve Mühendislik A.Ş. between 1995-1997 as a Member of the Board of Directors responsible for Financial and Administrative Affairs at Step İnşaat A.Ş, which engages in import and export business between Turkmenistan and Turkey and as Financial and Administrative Affairs Manager at Abeinsa Turkey Company, which operates within the Spanish Abengoa Group between 1997-2006 respectively. In 2016, He proceeded to the appraisal field in 2016 and took part in real estate valuation and tangible asset valuation works for many residences, workplaces, land, etc. Since July 2017, he continues his duty as the Deputy General Manager responsible for the Financial and Administrative Affairs Department within Aden Gayrimenkul Değerleme ve Danışmanlık A.Ş.

Ercan KESKİNER
Special Projects Manager

He graduated from Kocaeli University, Department of Geophysical Engineering in 2006. He started his career at Ulukar A.Ş as a field engineer, worked as a field engineer at Zetaş Zemin Teknolojileri/Zemin Etüt ve Tasarım A.Ş, and worked as a field engineer at Fenerbahçe Ülker Arena and Alpella Youth City Project within Özka İnşaat in 2010. He proceed to the appraisal sector in 2012, worked as a Real Estate Appraisal Specialist, Project Coordinator at EVA Gayrimenkul Değerleme Danışmanlık A.Ş between 2012-2018; was transferred to Nova Değerleme Danışmanlık A.Ş. in 2018, and worked as an auditor for report control. During his career in the field of appraisal, he took part in many qualified valuation studies such as appraisal studies of residences, workplaces, land-parcel, hotels, shopping malls, gas stations, real estate investment feasibility studies. Since November 2018, he continues his duty as Special Projects Manager within Aden Gayrimenkul Değerleme ve Danışmanlık A.Ş.

Natali Vartuhi DERGEZAROĞLU
Special Projects Manager

Having completed undergraduate program at Yıldız Technical University, Department of City and Regional Planning in 2005, Dergazaroğlu started his career in 2005 at La Madera Tourism Investment Consultancy, and continued his studies at Istanbul Gayrimenkul Değerleme ve Danışmanlık A. Ş between 2006-2008, at TGD Değerleme A.Ş. between 2008-2010, and as the General Coordinator and Istanbul Regional Manager at Ideal Gayrimenkul Değerleme ve Danışmanlık A.Ş between 2010-2011. Between 2012 and 2017, he served as Project Valuation and Consultancy Department Manager at EVA Gayrimenkul Değerleme Danışmanlık A.Ş. Natali V. Dergazaroğlu has worked in the appraisal, development and feasibility studies of many real estate and real estate projects in the real estate sector and has more than 14 years of work experience. Since July 2019, he continues his duty as Special Projects Manager within Aden Gayrimenkul Değerleme Danışmanlık A.Ş.

S. Buğra GÖZ
Machinery Appraisal Manager

S. Buğra GÖZ graduated from Gaziantep University, Department of Mechanical Engineering in 2014. He completed his master's degree in Business Administration at Bahçeşehir University in 2017 with the thesis of “Feasibility of Power Plants”. She entered the valuation sector in 2014 at TSKB Gayrimenkul Değerleme A.Ş. In the positions of appraiser, senior appraiser and assistant manager during his tenure; he took part in many appraisal and consultancy projects such as the consolidated appraisal of tangible asset classes of machinery-equipment, plant, ship, all kinds of industrial facilities, technical and financial evaluation reports of energy projects, preparation of technical progress reports. As of October 2020, he continues to work as a machine valuation manager within Aden Gayrimenkul Değerleme Danışmanlık A.Ş.

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