أسَامَة
Osman
The clever creative. Architectural engineering. Detail, on-site problem-solving, timelines, crews. No design proceeds without his final touches — his job is to make everything beautiful.
Istanbul · founded 2015 · 50+ interiors
Designing your dreams
A full-service studio from first concept to handover. Eight dimensions held at once — the way a room actually lives.
D1
SPACE
Volume, flow, void, plan.
00
OH Concepts Mimarlık
Istanbul interiors, held in eight dimensions.
Founded in 2015 by Osman and Melisa Arslan. We design, execute, renovate, and furnish residences, stores, and offices — then stage them for handover. Concept to mood board to 2D, 3D, site, and the last glass on the shelf.
08
The 8D model
A room is never one thing.
Hover a facet on the compass, or enter a panel. Each dimension is a way of seeing — and a way we build.
D1 · SPACE
Space
Volume, flow, and void. Plans that let a room breathe before furniture arrives.
D2 · LINE
Line
Axes of circulation. Edges that teach the eye where to go.
D3 · FORM
Form
Mass, silhouette, joinery. Furniture treated as architecture.
D4 · LIGHT
Light
Illumination as a building material, not an afterthought.
D5 · COLOR
Color
Chromatic atmosphere. Istanbul dusk — not a generic gold-on-black kit.
D6 · TEXTURE
Texture
What the hand remembers: plaster, linen, oxidized metal, stone.
D7 · PATTERN
Pattern
Rhythm and ornament drawn from the city’s geometry — never pastiche.
D8 · SCALE
Scale
Human measure. Rooms that know the size of a body, a glass, a pause.
03
Selected works
Design, then the building of it.
Three designed interiors. Three executed spaces. The rest lives in the portfolio.
02
Founders
A duet, not a department.
مَيسَا
Melisa
Cool, calm, artistic. Architecture, then a master’s in project management. She leads the work: timelines, budgets, growth, the big picture.
01
Process
Three overlapping layers.
Design and execution are one integrated process. We draw while thinking about handover — how a detail will actually look when the keys are passed.
Layer 01
Design
Concepts, mood boards, 2D drafts and layouts, 3D renders. The soul of the project, set in plan.
Layer 02
Execution
Site, trades, timelines. Matching the drawing to lived reality — the credibility we are known for.
Layer 03
Staging
The last polish: furniture, objects, light. Spaces delivered in their final, beautiful look.
Begin