OSSA®

OSSA®Residential design & developmentIndex A / 2026

Architect-designed residences, developed asComplete works.

Scope
Architecture · Interiors · Furniture · Landscape
Status
Concept collections 01—03
Index ↓
A repeating 1970s modernist concrete facade with arched top-floor windows under a clear blue sky.F01 · Campaign exterior

A residential design house creating limited urban environments where architecture, interiors, furniture, and landscape are conceived together.

  1. 01ProjectsThe collection index
  2. 02ApproachHow the house works
  3. 03ResidencesPrivate homes and studios
  4. 04JournalNotes and material studies
  5. 05EnquireBegin a conversation

Projects — collection index

Index

Angular faceted rooflines of a concrete-and-timber structure rising over trees under a soft sky.
Available concept

Courtland Row

A converted works building rebuilt as nine authored homes around a planted court.

Type
Adaptive-reuse residences
Scope
Nine homes
Place
East Dock · concept
Year
2026
  1. 02Terra DeckPlanted rooftop & shared gardenUpper Terrace · conceptCompleted study2025
  2. 03Signal HousePrivate urban studioNorth Reach · conceptForthcoming2027
Curving brutalist residential balconies in brown concrete with tropical planting and a dark archway below.

Residences — brutalist collection

Concrete
+ planting.

Curving brown-concrete decks and planted balconies. The residence collection is drawn as one severe world — mass, shadow, and green held in a single frame.

Chapter 01 / F02

Material — concrete · glass · chrome

The building
as material.

A narrow canyon between raw concrete walls with large oval cut-outs and deep vertical shadow.
A02 · Concrete & glass, vertical shadow
A rounded raw-concrete tower meeting hard angular planes, with one small warm timber detail.
F11 · Curved raw concrete, amber timber
  • 01 Board-marked concrete
  • 02 Structural glass
  • 03 Chrome & steel
  • 04 Amber timber inlay
Chrome tubular cantilever chairs, one in plaid upholstery, in warm low light.
A17 · Furniture archive

Shared ground — rooftop

Ground,
lifted.

A planted roof returns the site to the residents as shared ground — the quiet counterpart to the concrete below.

A rooftop garden of clipped topiary trees and planters beside a pale sky.
A sweeping curved bronze-toned metal canopy above dense street-level planting, a glass tower rising behind.

Where structure ends,
the garden begins.

A00 · Declan Sun

Approach

One authorship, from the structure to the shelf.

OSSA develops limited residential collections as complete works. Architecture, interiors, furniture and landscape are resolved by one hand, so a residence reads as a single decision rather than a stack of trades.

Enquire

For collection availability, development partnership, or a private commission.