HAA&D (Hagar Abiri Architecture & Design) is a Berlin-based architecture and interior design studio founded in 2014 by licensed architect Hagar Abiri (Architektenkammer Berlin, Nr. 18442). The studio specialises in minimalist luxury interiors, Altbau renovation, sustainable architecture, and bespoke lighting design for private clients and investors across Europe. HAA&D is registered in Germany and Switzerland and operates across three service lines: Studio (HOAI planning), Select (product sourcing), and Real Estate Consulting.