Bay-Window Seating in East London

A bay-window seat is a bench built into the recess of a bay window, usually with storage underneath. In Victorian and Edwardian London homes it reclaims a notoriously awkward bit of floor area — too small for a sofa, too oddly-shaped for a chair — and turns it into useful storage plus a window-side reading or breakfast spot.

Why bay seats are particularly East-London joinery

Edwardian and late-Victorian terraces are the dominant housing stock across E5, E7, E11, E10 and E18 — the postcodes where most of our work is. Almost every one of those houses has a bay window in the front room and often the master bedroom. Almost none of them have a sofa or armchair in the bay, because the geometry doesn’t work for off-the-shelf furniture: too narrow, too splayed at the corners, and usually with a radiator in the way.

Bay-window seating is the joinery solution that turns that wasted floor area into useful storage plus a place to sit. In a typical 1.8m-wide bay it adds roughly 0.3m³ of storage (one to two well-organised drawer’s worth) and a 0.5×1.8m seating surface for the cost of a single weekend’s spend on Ercol furniture.

Sizing the seat for your room

Three things determine the final seat shape: the depth of the bay, the angles of its returns, and the height of the window sill above the floor. We measure all three at the survey.

Depth controls how comfortable the seat is. A 450mm-deep seat is OK for a quick perch with a coffee but too shallow to read on. 500–550mm is the comfortable adult depth. If your bay is shallower than 450mm you can extend the seat out into the room slightly with a returning step, but that starts to eat the floor area it’s supposed to reclaim.

Return angle determines whether the seat is straight or faceted. A square bay (90° corners) gets a single straight bench. A splayed bay (typically 30–45° corners) gets a faceted three-section seat following the bay angles. A semi-circular bay (rare in our area but common in Brighton) gets a curved bench — significantly more complex, ~30% premium over straight.

Sill height determines how tall the seat back is. Most Victorian sills sit 800–900mm above the floor. With a 400–450mm-tall seat structure, you’re left with 350–500mm of “back rest” before the window starts, which is enough for a comfortable seated posture against a couple of cushions.

Storage choices

Most clients want either two-three drawers across the seat front (cleanest visual, best for everyday small items) or a lift-up lid with a single deep void underneath (more capacity, more awkward to access regularly). About 70% of the seats we build are drawers; 25% are lift-up; 5% are some hybrid.

For storing very specific items we sometimes design the seat differently:

Bedding storage (in bay seats in bedrooms): single big void with a lift-up lid; volume is more useful than divided drawers.
Toys (front room seats in family homes): wide shallow drawers, ideally three rather than two.
Wine (occasional brief): bespoke wine-bottle inserts, cooler-grade insulation in the cavity. Niche but doable.

Cushions and finish

We supply and build the seat base; the cushion itself we co-design with you. A standard 50mm foam cushion with dacron wrap and the fabric of your choice runs £180–£280 depending on fabric grade. We work with Romo, Linwood and Designers Guild as the usual suppliers, but anything you bring (or anything else our upholsterer can source) is fine.

The seat finish itself is almost always painted MDF to match the room’s other joinery — typically Farrow & Ball, sometimes Little Greene or a colour-matched RAL. The exception is a hardwood seat top (oak or walnut) on a painted base, which works well in front rooms with a matching hardwood mantel or floor.

Costs

Typical scopes and budgets

These are service ranges, not photographed jobs. The final quote depends on room size, finish, hardware, access and interior detail.

Scope	Typical range	What moves the price
Single-bay straight bench (1.5–2m wide)	£1,400–£2,100	Storage type (lift-up lid vs drawers), upholstered cushion, door/drawer style
Three-sided bay seat (matching original bay angles)	£1,900–£2,900	Bay geometry (square, splayed, semi-circular), continuous top vs faceted, finish
Bay seat with integrated radiator cover	£2,200–£3,200	Radiator removal/relocation (if needed), grille pattern, ventilation cutout
Bay seat with built-in bookshelves above (returns up the window reveals)	£2,800–£3,800	Shelf depth and count, painted vs veneered, lighting integration

Options

Common materials and choices

Frame & carcass

18mm MDF (painted) or Egger MFC (concealed)

Painted MDF for visible faces, MFC for hidden carcass. Solid timber rails at stress points (around the lift-up hinge).

Seat top

25mm MDF with painted edge, or solid hardwood

Most clients pick painted MDF (cheaper, easier to match the room). Solid oak or walnut tops cost more but age beautifully.

Upholstered cushion

Foam + dacron wrap, in fabric of your choice

We make the base; the cushion is sized to fit. Bring fabric or we'll order from Romo, Linwood or Designers Guild.

Mouldings

To match existing room

Skirting, architrave and any picture-rail or dado returns are matched and scribed in. The seat reads as part of the room, not an add-on.

Questions

Frequently asked

Lift-up lid or drawers underneath?

Depends on the bay geometry. A straight bench works well with two or three drawers (cleanest look, easiest day-to-day access for small items). A faceted three-sided bay seat usually has to use lift-up lids because drawer fronts don't sit comfortably on a 30° splayed face. We design around the bay's angles rather than forcing one over the other.

What about the radiator under the bay window?

Most Victorian / Edwardian bays have a radiator directly under the window. Three options. (1) Move it to an adjacent wall (plumber visit, ~£250 for a short relocation). (2) Build the seat over it with a perforated brass or wooden grille in the seat face (heat output drops 15–25% through the grille). (3) Replace with a low slimline radiator that fits into the lower zone of the seat structure.

How comfortable is it actually to sit on?

With a 50mm dacron-wrapped foam cushion and a back cushion, it's comfortable for an hour or two — comparable to a kitchen banquette. For a place to read for a whole afternoon, you'll want a thicker cushion (75–100mm), a few extra back cushions and probably a side table. We talk through the seating purpose at the survey because it affects the seat depth (usually 500–550mm).

Can you build under-seat storage that holds shoes?

Most under-seat storage cavities are 300–380mm deep, which is fine for two rows of trainers but tight for tall boots. If shoes are the primary use, drawer compartments work better than open volume — you can specify shoe-shelf inserts in the drawer fronts. We'll spec what you're storing into the design.

Do you keep the original window reveal mouldings?

Yes, almost always. The architrave around a Victorian bay window is usually one of the room's nicer details, and we scribe the seat into it rather than removing or covering it. The seat reads as a piece of joinery added to the original room rather than a replacement of it.

Bay-window seating in East London