Designing a small London garden

Why small gardens usually feel smaller than they are

Three mistakes account for most of it. Too many materials, so a thirty-square-metre space is visually cut into five smaller ones. Furniture standing in the middle, occupying the only clear floor. And boundaries left as bare fence panels, which stop the eye dead at the smallest dimension of the plot.

None of these is fixed by making things smaller. Miniature furniture in a small garden reads as a compromise. The answer is nearly always fewer, larger elements.

One floor material, laid in one direction

This is the single highest-impact decision. A continuous surface running wall to wall, in one material and one laying direction, makes a small garden read as a single space. Break it into a patio area, a path and a gravel section and you have three small areas instead of one decent one.

Large-format units help for the same reason: fewer joints means less visual noise. In a small London garden, 600×1200 porcelain will look calmer than the same area in small setts, though it demands a flatter, fully bedded base to sit right.

Run the long dimension of the boards or slabs across the garden rather than down it if the plot is long and thin. It widens the space visually at no cost.

Work the boundaries — that is where the surface area is

In a small garden the walls and fences are most of what you actually see. A plot four metres wide with two-metre boundaries has more vertical surface than floor, and treating that vertical area is the cheapest way to transform the space.

Painting or staining a fence a single dark colour is remarkably effective: dark boundaries recede and read as depth, where orange-brown larchlap advances and shouts. Slatted battening over an existing fence gives a contemporary, calm backdrop. Climbers on wires — star jasmine, climbing hydrangea, clematis — turn a boundary into planting without taking a centimetre of floor.

Built in, not standing about

A bench built along a boundary seats the same number of people as a table and chairs while occupying a third of the footprint, and it doubles as storage underneath. In a garden where floor area is the scarce resource, this trade is almost always worth making.

The same logic applies to planting. Raised beds built against the boundary give real soil depth for shrubs and small trees without a freestanding border eating into the middle of the space.

A change of level is worth more than a fence

Two shallow steps between one part of the garden and another divide a space more convincingly than any screen, and unlike a screen they do not block light or sightlines. Even a single step creates a distinct area.

Many London gardens already have a level change to exploit — the ground rising towards the back in Muswell Hill or Forest Hill, or the drop to a basement lightwell in Islington. Working with it produces a more interesting garden than flattening it, and usually costs less.

Plant for shade, because that is what you have

Enclosed on three sides by tall buildings, most inner-London gardens get direct sun for a few hours at best, and north-facing plots get almost none. Fighting this with sun-loving perennials produces a permanently disappointing garden.

A green-on-green scheme built from texture rather than flower colour reads as deliberate and thrives in low light: ferns, hostas, epimedium, hellebores, box and yew for structure, hydrangea for a long season, climbing hydrangea and star jasmine on the walls.

One multi-stem tree is worth more than a dozen shrubs. It gives height and dappled shade, its canopy sits above eye level so it takes no usable space, and it draws the eye upwards rather than to the back fence. Amelanchier and birch both suit small gardens.

Light it, and you double the time you use it

A garden you can see from inside on a January evening is part of the house. One that becomes a black mirror at four o'clock is not.

The rule is to light what you want to look at, not the space itself. Uplighting a tree, grazing a textured boundary, a low light washing a step — these read beautifully from indoors. A single bright floodlight on the back wall does the opposite: it flattens everything and turns the window into a mirror.