Design + Build · 2026
Architecture · Engineering · Construction
Where visionary design meets structural precision
Ascend Design Build delivers integrated architecture, engineering, and construction — crafting spaces that stand as both art and structure.
Addis Ababa, EthiopiaDesign · Coordinate · DeliverScroll to explore
Blen Sisay
Design Director
Founder-led practice
Leadership that stays close to the work.
Leadership stays connected to every project decision
As an Architect and Design Director at Ascend Design Build Group, I lead architectural and construction projects with intention, precision, and creativity. My work combines architectural design, interior planning and construction to create spaces that are both functional and elegant designed to elevate how people live and work. With years of hands-on experience in design development, construction management, and technical oversight, I’ve had the privilege of contributing to projects that range from residential homes to commercial developments and infrastructure. I thrive on integrating innovation with practical execution, ensuring every project meets the highest standards of quality and sustainability. At Ascend, we specialize in architectural design, interior planning, design-build delivery, geotechnical investigations, construction supervision, and material analysis, providing comprehensive solutions from concept to completion. Every project is an opportunity to combine vision, expertise, and impact. I’m passionate about creating spaces that matter, mentoring my team, and building a brand that represents excellence, trust, and thoughtful design.
Meet the studioSelected work
Proof, not promises.
Each project is shaped by its users, site and constraints. Explore the thinking behind the plans, materials and details that bring the work together.
What we do
One studio. Three connected disciplines.
Concept to completion
The process is part of the proof.
Every stage has a purpose, a set of decisions and a clear handoff. Clients can see where the work stands and what is needed to move forward.
- 01ConsultationWe clarify the site, ambition, constraints and measures of success.
- 02ConceptSpatial options, mood, scope and early cost thinking establish direction.
- 03DevelopmentArchitecture, engineering, materials and approvals are coordinated.
- 04DeliveryProcurement and construction are managed against the approved intent.
- 05HandoverQuality is verified and the completed space is prepared for use.
Our standard
Clear decisions. Careful details. Work that holds together from first conversation to final handover.
We measure progress through the quality of the whole project: how it serves its users, how clearly it can be built and how well the finished space carries the original idea.