North light is the painter’s light — steady, shadowless, and cool. Under a London sky it is also unforgiving: it strips the warmth out of a white and hands you back grey. The brilliant white that sparkled in a sunny showroom can feel like an overcast Tuesday on a north-facing wall. The remedy is not more light; it is a better white.
No white is just white
Every white on a paint chart is tinted — nudged with yellow, red, green or black in tiny amounts. That undertone is invisible on the chip and decisive on the wall. Cool, grey-based whites lean architectural in south light and turn flat in north light; warm, yellow- or red-based whites push gently back against the coolness and keep a room feeling inhabited.
Where to start looking
Among the heritage houses our clients favour, the reliable north-facing candidates are the softly warm whites: Farrow & Ball’s Pointing, School House White and Wimborne White, or Little Greene’s Slaked Lime and Stock, each carrying just enough warmth to stay creamy rather than cold. The greyed whites — Strong White, Ammonite and their cousins — are beautiful, but in north light they read as pale grey, which should be a decision rather than a surprise. (For how the two houses differ in character, see our note on Farrow & Ball and Little Greene.)
Test like a decorator
Never judge from the chip, and never from one patch beside the window. Paint two generous coats onto A3 boards and move them around the room — the wall facing the window, the wall beside it, the dim corner — and look morning and late afternoon, lamps off, then on. Boards beat patches because you can hold them against the joinery and curtains they will live with. A colour consultation is included with every commission, so you need not do this alone; it is considered advice on shades, sheens and paint houses, at no extra cost.
Do not forget the evenings
A north-facing room lives half its life under artificial light, and bulbs re-tint every white you shortlist. A warm 2700K lamp flatters the creamy whites and can turn the grey-based ones muddy; cooler 4000K task lighting does the reverse. Judge your boards under the room’s actual lamps after dark as well as by day — and if the scheme matters enough, settle the lighting before the paint, not after.
Ceilings, woodwork and sheen
Pure brilliant white above a warm white wall makes the ceiling advance and the walls look dirty. Softer schemes use the wall white at half strength overhead, or simply the same white throughout, letting sheen provide the difference. And sheen matters: the flatter the finish, the softer the light it returns — one reason we specify chalky matts on period walls and keep the sheen for the woodwork.
The right white for a north-facing room is rarely the whitest one. It is the one that, at four o’clock on a grey January afternoon, still looks like a decision rather than an absence.
This piece is part of our complete guide to decorating a period London home.