The Stone Steps and Paving team restores and renovates basement stairs and lightwell areas for homeowners across London. On this page we outline what a lightwell is, the common issues property owners should look out for, and mention the period correct materials and methods we use in their restoration.

Pictured, at the top of this page, is our restoration of a curved stone staircase and basement lightwell in Maida Vale, London W9. We corrected uneven steps, dealt with damp-proofing risks, improved drainage, installed precision-cut new stone, added bespoke wrought iron railings and more.

In London, the feature now often called a lightwell (or light well), front area or basement area was traditionally known as the area. It is the open sunken zone in front of a basement or lower-ground storey, designed to bring in light and air, provide access, and manage the threshold between the public street and the rooms below. In the book Life in the Georgian City, historian Dan Cruickshank points towards the ‘area’ name being a corruption of ‘airy’; “It is surely significant that in the early eighteenth century house descriptions the area was usually called the ‘airy’ which suggests that its ventilating function was primary.”

Lightwells are most strongly associated with Georgian, Regency (late Georgian) and Victorian terraced housing, especially in the central and inner-London districts where that housing type survives at scale. They are especially common in the great terrace districts of Westminster, Kensington and Chelsea, Camden, Islington and similar inner-London boroughs. Westminster’s railings guidance (.pdf download) refers to typical examples in conservation areas including Marylebone, Regent’s Park, Belgravia, Bayswater and Pimlico.

Overlaid steps before replacement

Pictured: Tiles overlaid onto steps often trap moisture. We later replaced these tiles with York stone

The common lightwell problems our team encounters

Most homeowners come to us when something has clearly gone wrong. Water is sitting at the bottom of the steps. The paving rocks. A tread on the stairs has cracked. Mortar has washed out. The railings are rusting at their bases. Damp is beginning to show inside around the basement wall or threshold.

The defects we see most often are:

  • Failed drainage
  • Blocked gullies,
  • Standing water
  • Backfalls in paving
  • Loose stone steps
  • Eroded tread edges
  • Hard cement repairs trapping moisture in older masonry
  • Cracked cheek walls
  • Stairs that have been covered with another material, with failing joints or hollow patches underneath
  • Corroded railings.

Also, we often see London lightwell steps finished in anti-slip tiles. In our experience, tiled finishes are usually later resurfacing layers, often used where a stair has been repaired or modernised in the 20th century.

For us, tiled steps raise more questions:

  • Are the tiles sound or hollow?
  • Is water getting behind them?
  • Are they hiding cracked concrete or failed bedding?
  • Do they cover lost original stone?
  • Are they trapping moisture against adjacent walls or thresholds?

In a traditional London lightwell, tiled finishes are often a covering rather than a real solution. If the drainage, geometry and substrate are poor, tiles usually hide that for a time rather than curing it.

Also worth remembering: The visible defect is often only the symptom. A loose tread may point to failed bedding below. Damp at the doorway may come from poor falls or blocked drainage rather than the door itself. A cracked wall may suggest long-term washout, movement, or repeated freeze-thaw damage in saturated masonry.

Traditional construction methods and materials for London lightwells

If you’re looking to restore the basement stairs and area of your London property, stone and brick are the materials of choice:

  • For Georgian houses, the Survey of London research project describes a front area formed as a “stock-brick ‘box’”, with “stone paved” surfaces, “stone steps”, “iron railings along the pavement” and, in some cases, “brick-lined vaults” for coal and storage.
  • For Victorian properties it’s the same basic arrangement, but often with heavier treatment and more industrial standardisation.
  • Georgian lightwells tend to read as more restrained, with simpler detailing and earlier ironwork; Victorian lightwells often use many of the same base materials but with heavier, more standardised metalwork and repeated manufactured details.
  • Brickwork. The side walls and retaining walls were commonly built in London stock brick or similar stock brickwork. In larger houses, under-pavement storage was often formed in “brick-lined vaults”, another classic London basement feature.
  • Mortar. Georgian and Victorian terraces used traditional lime mortars, not hard modern cement. Lime-based bedding and pointing are usually better suited to traditional lightwells because they are more forgiving and more compatible with old brick and stone than hard cement-rich repairs.
  • Stone steps and paving. In London conservation practice, the most typical surviving material for external basement paving and steps is York stone, a hard-wearing sandstone. York stone is widely valued as an external step material because it is durable and can offer strong slip resistance, especially with a textured finish.
  • Railings and gates. In earlier London houses, domestic railings were typically wrought iron. From the late Georgian period onward, and increasingly through the Victorian era, cast iron became more common, though many 19th-century railings combined wrought-iron structural bars with cast-iron ornament.

A London lightwell basement is a damp, exposed place – water management is fundamental. Traditional stone and lime-based construction tends to cope better with damp cycling because it can shed water and then dry out again. By contrast, later tiled and cement-heavy repairs often create a more sealed finish layer that can trap moisture behind or beneath it.

Contact us

Hopefully, this page gives you a sense of the common issues you should be aware of when restoring a period basement area.

At Stone Steps and Paving, we take a repair-first, evidence-led approach. We begin by understanding the age and type of house, the surviving historic fabric, the drainage behaviour and the relationship between the lightwell and the rest of the terrace

If you have a project you’d like to discuss, do get in touch.

Sources of more information