La sección como relato. The building section is the drawing where architecture becomes story. A floor plan is a diagram of program — rooms, their sizes, how they connect. The section is where the experience of the building becomes legible: how you move through it, where the space opens and closes, how light appears at key moments in the sequence, how structure is revealed as you rise from ground to roof.
This is not a poetic observation. It is a practical argument for treating the section as a primary design tool, not a documentation output.
The Difference Between a Documentation Section and a Narrative Section
A documentation section is a technical drawing produced during construction documents. It shows dimensions, structural members, material layers at wall assemblies, ceiling heights at each room. It is accurate and necessary. It does not, on its own, design the spatial experience of the building.
A narrative section is a design drawing produced during schematic and design development phases. It shows the same building — but it includes the human figure at scale, the sun angle at a key seasonal moment, material callouts at the major cut surfaces, and annotations that describe spatial intentions. It asks and answers: what does it feel like to be inside this section?
The difference is not a matter of graphic style. It is a matter of what the drawing is used for. A documentation section verifies a design already resolved elsewhere. A narrative section is part of how the design is made.
The Spatial Sequence Read in Section
A building's spatial sequence — the experience of moving from arrival to threshold to main space — is a vertical event as much as a horizontal one. Entry often compresses the space: a low ceiling, a narrow corridor, a compressed moment before the principal volume. The principal space expands: ceiling rises, light arrives, structure is revealed. Secondary spaces settle to a domestic scale.
This sequence of compression and release, of dark and bright, of intimate and generous — it is visible in section. The floor plan shows the rooms in order. The section shows their relationship in height and light. A living room that shares a floor plate with an entry hall but rises to a double height, with a clerestory above, is indistinguishable from the entry hall in plan. In section, the spatial hierarchy is unmistakable.
At MÉTODO, we draw the spatial sequence section early — a longitudinal cut through the primary axis of the building, from entry to the farthest inhabited space. This drawing asks: does the sequence work? Does it tell the story we intend?
Light as a Narrative Element in Section
In the narrative section, light is not background. It is an event in the sequence. The moment of arrival from a shaded entry into a south-facing living room with winter light reaching the back wall — that transition is a spatial narrative beat. It is designed in section: the ceiling height, the window placement, the wall depth that creates the threshold between the compressed entry and the open room.
A skylight at the top of a stair is another narrative beat: a moment of vertical orientation as you rise through the building, pulled upward by the light above. In section, the stair is a vertical element cutting through the floor plate, and the skylight is the aperture at the top of that vertical journey. The section shows how much sky is visible from the stair landing, and what the light quality will be at that moment.
The sombra antes que la luz. The narrative section designs the shadow conditions that frame these moments of light — the low ceiling before the high room, the opaque wall before the transparent opening, the transition that makes the arrival of light legible as an event rather than a flat condition.
Structure Expressed in Section
The section reveals structural logic in a way that plan and elevation cannot. Where a beam spans — and at what depth — is a fact of the plan but an experience of the section. A concrete beam at ceiling height divides the room spatially; its depth is a dimension in plan and a spatial element in section. A timber truss that rises above the occupied floor and is revealed through a glass ceiling panel is invisible in plan and central to the spatial narrative in section.
In our work with concrete, stone, and timber, the section is where we decide which structural elements become spatial experiences and which are concealed. This is not a decorative decision. It is a decision about what the building's construction logic says about itself — whether the structure is part of the narrative or bracketed off behind finishes.
Materialidad honesta in section means the structural elements at the cut surface are shown as they are: their actual dimension, their actual finish, their actual relationship to the space. A concrete column is not reduced to its plan dimension in the section — it is drawn as the element it is, with its surface quality and its shadow.
Using the Narrative Section with Clients
The narrative section is our most effective design communication tool in client presentations. More than rendered perspectives — which show a fixed viewpoint in favorable light — the section invites the client to imaginatively inhabit the building as a sequence.
We present the section with a simple instruction: trace the path from the front door to the kitchen, or from your bedroom to the terrace. The client's finger moves through the section, encountering the spatial events — the compressed entry, the expanded living volume, the light above the stair — in sequence. Questions that do not arise from a plan or a rendering emerge immediately.
This is the practical argument for narrative section thinking. It surfaces design problems early, when they are cheap to resolve, and it builds client confidence in a design they can actually read.
Next Steps
If you are reviewing a design proposal and the section drawings are documentation sections — accurate but uninhabited, without sun angles or human figures — ask for the narrative section. It will tell you what the building is designed to feel like, and whether that intention is achieved by the current design.
Discover how MÉTODO develops narrative sections from the earliest design stages as the central instrument of our design process.