How to Light a Sunroom

By day the room lights itself. Evenings want festoon or wall sources kept off the glass sightline, everything warm and low — a glass room at night becomes a lantern seen from the garden, and harsh light makes it an office aquarium.

One central source flattens a sunroom into an evenly lit box: no depth, no zones, and a shadow wherever you stand. Every working scheme for this room is plural — sources at more than one height, switched in more than one group, so the room can change register through the day.

A sunroom is hired for the light and the garden view, and everything in it must survive both. That means fade-proof fabrics, plants promoted to furniture rank, and a layout that faces outward — chairs angled to the view, low backs that never block glass, nothing tall except in the room’s one solid corner. It also means taking the climate seriously: shade for July, texture and throws for January, because a glass room amplifies every season it touches. The lighting follows those hours: bright and even when the room is working, warm and low when it is winding down — and the switch layout is what lets one room do both.

No shading plan, so the room is abandoned exactly when it is most tempting — high summer. And in every room: bulbs of mixed colour temperature in one view, which reads as a fault even when nobody can say why.