Based in Mexico, Esrawe Studio was selected from a shortlist of five studios, which was determined by our jury of 25 leading figures from the world of interiors.
Czech studio Formafatal beat six other emerging studios to win the award.
The winning studios were revealed in the Dezeen Awards 2020 interiors show, which was streamed on Dezeen on 24 November.
The architecture winners were announced on 23 November and the design winners will be revealed in tomorrow's final Dezeen Awards Show from 4 pm to 5 pm GMT.
Esrawe Studio named interior designer of the year
The interiors jury, which consisted of New York-based designer Rafael de Cardenas, Victoriya Yakusha of Yakisha Design, Alex Mok of Linehouse, Seyhan Özdemir and Sefer Çağlar of Istanbul-based studio Autobahn and Ambrish Arora of Studio Lotus, chose the Mexico City-based studio as this year's winner.
The judges liked that "Esrawe Studio's projects have an element of surprise, power and innovation and added that the "exquisite details and craftsmanship achieved through their projects shows a rigorous design process - across all scales, from architecture to furniture."
Formafatal named emerging interior designer of the year
Czech interior design studio Formafatal won the emerging interior designer of the year award. The judges said that "Formafatal is a young, vibrant and globally present studio with many interesting projects for its age."
The interiors master jury, which virtually met on 5 November, based their selections on the evidence of strong vision and achievement, business success, client satisfaction and positive impact.
Projects by Formafatal include a holiday home in Costa Rican jungle called Art Villa, which was also shortlisted in house interior of the year.