Journal — Architecture ·
Designing Around Natural Light
Light is the first material we draw with, and the one that changes everything else.
By Julian Finch
Before we draw a single wall, we spend a day in the property with a compass, a notebook and a camera set to take one frame every fifteen minutes. By evening we know where the light enters, how deep it reaches, which rooms go grey at three o'clock and which catch a last sliver of sun at seven. That record shapes the plan more than any brief.
New York makes this work both harder and more rewarding. Townhouses are deep and narrow, lit from two ends only. Apartments may have a single exposure. Lofts can have wonderful windows on one side and total darkness on the other. In each case the question is the same: how do we move daylight further into the building, and how do we make the dimmer rooms feel intentional rather than neglected?
A dark room is not a failure. A room that is dark without meaning to be is.
Borrowed light
Our most-used device is borrowed light: an internal window above a door, a glazed stair enclosure, a clerestory between a bedroom and a corridor. In the West 11th Townhouse, the central stair became a light well that carries sun from a new skylight down four floors. Each landing is a little brighter than the one below it, which also makes the climb feel shorter.
Surfaces that hold light
The finish of a wall matters as much as the size of the window. Flat paint bounces light evenly and a little lifelessly; lime plaster, with its slight irregularity and mineral depth, catches raking light and holds it in soft gradients. We often use a warmer plaster on the walls that face windows and a cooler one on the walls perpendicular to them, so that the room appears evenly lit even as the sun moves.
Floors do similar work. Pale, oiled oak reflects a surprising amount of light upward into a room; dark floors absorb it. In a north-facing apartment, choosing the floor finish can make a larger difference than adding another lamp.
After dark
Artificial lighting is designed as a response to daylight, not a replacement for it. We avoid grids of downlights, which flatten a room, and instead light walls, ceilings and surfaces so that the evening version of a space keeps the same sense of direction that daylight gave it. The aim is a room that feels as though the sun set a few minutes ago.