The Concrete House at 1331 Linda Flora Drive: cantilevered concrete roof, timber walls and glazing beside the curved reflecting pool.
Bel Air, Los Angeles

The Concrete House

1331 Linda
Flora Drive

Architecture and interiors by Jeffrey Eyster, AIA
Atelier Eyster Architecture

01 / Origin
The architectural idea

Structure. Surface. Space.

On a Bel Air ridgeline, concrete establishes a continuous language for the house—from its cantilevered planes and angled columns to its ceilings, stairs and interior details. Structure and finished surface are conceived together, with the distant hills framed by the building’s horizontal edges.

The project began with the loss of the previous house to wildfire. The new residence was conceived in concrete, with resilience, durability and the relationship between structure and daily life considered from the outset.

Angled concrete columns beneath a chevron-textured ceiling frame the hills beyond the living space.
Angled columns, a textured ceiling and a continuous floor define the living space at the edge of the landscape.
02 / Structure & Form

Structure becomes finish.

Concrete carries the building and gives its interiors their surface. Chevron-patterned cedar formwork leaves a precise grain in the ceilings. Lighting recesses, window channels and service openings are coordinated with the concrete, carrying the architectural idea into the details.

Deep upturned beams support the projecting floors and roof. A tapered, wing-shaped fascia brings their depth to a fine edge, while angled columns and recessed glazing make the structural order legible. The horizontal planes extend the lines of the surrounding ridges.

Close view of an angled concrete column and chevron board-formed ceiling with natural light from the open facade.
The ceiling records the cedar formwork used to cast it. Smooth perimeter bands articulate the edges of the textured surface.
Concrete terrace and sculptural bench beneath the cantilevered roof at 1331 Linda Flora Drive.
The terrace and concrete bench continue the geometry of the house.
Two levels of glazing and concrete framed by trees at the Bel Air Concrete House.
Trees frame the glazed façade and its layered concrete planes.
03 / Making
Drawings, construction & detail

Before the concrete is poured.

Every recess and opening begins as a decision in the formwork. Lighting housings, shade pockets, window channels and air-distribution paths are coordinated with the structure before casting. The precision of the finished rooms depends on work that will become concealed.

The construction record reveals this relationship between architectural intent and execution: the building's concrete frame, the services within its ceilings, and the detail of an exposed edge.

The exposed concrete frame of 1331 Linda Flora Drive during construction, with cantilevered floors and roof before glazing and finishes.
The concrete frame during construction. Projecting floors and roof establish the composition before glazing and interior finishes.
Ceiling framing, ductwork and plumbing coordinated around a recessed shower fitting before the finishes are installed.
Within the ceiling: framing, ductwork and plumbing coordinated around a recessed shower fitting.
Close view of the formed concrete overhang edge, glazing and recessed channel at 1331 Linda Flora Drive.
At the edge: the formed concrete profile, glazing and recessed channel brought into one detail.
Selected design studies
Existing architectural study titled West Facade and Oval Pool.
West facade and oval pool · design study
Atelier Eyster Architecture
Existing architectural study titled V Column with Herringbone Ceiling.
V column and herringbone ceiling · design study
Atelier Eyster Architecture
04 / Life Within
Light, shade & landscape

Rooms at the edge of the landscape.

The deep concrete roof shades the glass and gives the threshold a depth of its own. Beyond it, planting, water and the distant hills extend the experience of the rooms. The same material that carries the building shapes its light, texture and shelter.

Timber-lined interior with reflected pool light across its concrete ceiling at 1331 Linda Flora Drive.
Reflected pool light moves across the concrete ceiling of a timber-lined room.
A shaded view from beneath the concrete roof across the terrace, pool and Bel Air hills.
The depth of the roof brings shade to the threshold between interior and landscape.
Open pivoting glass doors and a cantilevered roof at the house's pavilion, surrounded by planting.
Glazing opens beneath a projecting concrete roof, extending the pavilion toward its planted terrace.
The glazed concrete pavilion illuminated at dusk, with its planted terrace and distant hills.
The pavilion at dusk.

05 / Architectural Record

One house. A continuous design.

Published account

Concrete Engineering International
January 2025 · Pages 26–28

The art of holistic concrete design: merging form, structure and resilience

Jeffrey J. Eyster's article documents concrete as the house's structural system and architectural finish. It describes the cantilevers, upturned beams, board-formed ceilings and integrated services, and sets out the design's emphasis on resilience and longevity.

Read the CEI article · PDF ↗
Project
The Concrete House
1331 Linda Flora Drive
Bel Air, Los Angeles, California
Architecture & interiors
Jeffrey Eyster, AIA
Atelier Eyster Architecture
Drawings
Atelier Eyster Architecture
Selected original design studies
Structural engineering
Mathew Melnyk
Credited in the CEI article
atelier eyster architecture1331 Linda Flora Drive · Bel Air