BAS1S Architecten

BAS1S Architecten is a Dutch architectural firm founded in 2011 that specializes in custom design solutions for new construction, adaptive reuse, and expansion projects throughout the Westland region near Poeldijk. The company combines creative vision with practical craftsmanship to translate client ambitions into detailed designs while maintaining a collaborative approach where every stakeholder participates in the process.

• History: Established by Bas Breumelhof and Siu Kin after decades of prior work under Kees Breumelhof's firm, which originated in The Hague before moving to Poeldijk.
• Services: Offers comprehensive architectural services ranging from initial concept discussions and coffee chats to full-scale project execution with a focus on listening to client stories.
• Locations: Operates exclusively out of its long-standing headquarters at Voorstraat 18 in Poeldijk, within the broader Westland area.

The firm continues to honor its legacy while adapting to new challenges following Bas Breumelhof's departure in 2021 due to health reasons.