Townhouse interior design: the architecture of living across floors
Townhouse interior design is usually presented as a decorating exercise; a gallery of beautiful townhouse interiors, a colour scheme, some clever storage. I think that misses the point entirely. A townhouse is a vertical apartment with the demands of a house: the same family life, the same kitchen, the same guests, but stacked across a three or four storey townhouse section, connected by the one element that decides whether the whole thing works; the staircase. In my experience, a townhouse is designed from the bones outward, or it is not really designed at all.
At Yasmine B Design, we work on townhouses in London, Paris, and beyond, and the pattern is always the same. The properties that feel effortless are the ones where someone thought hard about the section — the vertical slice of the house — before choosing a single piece of furniture. The ones that feel like a stack of unrelated flats are the ones where each level was decorated in isolation. This article sets out how I approach townhouse interior design as an interior designer trained to think in architecture first and decoration second: the plan across levels, the staircase, space, light, colour continuity, and the furniture pieces that suit vertical living.
What makes a townhouse different from any other home
A townhouse concentrates its square metres vertically. That single fact changes everything about the interior design.
First, no level can do everything. In a lateral apartment, the living space, kitchen, and bedrooms share one level and borrow from one another. In a townhouse, each storey has a job, and the design must decide what that job is. Get the allocation wrong — a kitchen too far from the dining table, a family room on the wrong level, a master bedroom fighting street noise — and no amount of interior decoration will rescue it.
Second, the connective tissue matters more. Corridors barely exist; the staircase is the corridor, and you will climb it thousands of times a year. Third, daylight behaves differently: a townhouse is typically deep and narrow, lit from the front and back only, with a dark centre that has to be managed deliberately. And fourth, a townhouse usually comes with history — a period façade, an original staircase, a fireplace on every level, a garden — and with neighbours on both sides, which brings both privacy and constraint.
None of this is a problem. It is the brief. The townhouse living I admire most — and London's most beautiful properties prove it — treats verticality as the point, not the price.
The floor plan: giving every level a purpose
Every townhouse project at the studio begins with a simple exercise: we write the life of the house before we draw it. Who wakes first? Where is breakfast? Where do children do homework while dinner is cooked? Where do guests go, and how far into the family's territory should they reach?
Then the levels take their roles. The classic arrangement still works for good reasons: the kitchen and family living on the garden level, where daily life wants to spill outside; a more formal living room on the raised ground or first floor — the old piano nobile, with the best ceiling height and the best windows; bedrooms above, quietest at the top; and the master bedroom placed where the section offers the best combination of calm, light, and distance from the front door.
But the classic model is not a law. A client who cooks for friends every week may want the kitchen at the heart of the house, not buried at the bottom. A family with teenagers may want a floor that functions as a semi-independent flat. This is why townhouse design rewards an interior designer who thinks in section: moving a bathroom, opening a floor plate, or stealing a metre from a landing changes the life of the house — and its cost — far more than any paint colour ever will. It is also why the budget conversation belongs at the start, when the structural decisions are still cheap to change.
The staircase: the protagonist of the house
If a townhouse has a single defining element, it is the staircase. It is the spine, the light well, the daily ritual, and — designed well — the most beautiful object in the house.
I treat the staircase as a room in its own right. The handrail deserves the same attention as a piece of furniture, because it is the one surface every hand in the house touches every day. The landings deserve real thought: a landing with a window, a chair, and a lamp becomes a place, not a leftover. And the vertical void around the staircase is the house's best chance at drama — a drop light falling three storeys, art climbing the wall at the pace of the ascent.
The staircase is also the circulation diagram of the entire home, and how you move through a house matters more than what's in it — a conviction I've written about at length in the studio's piece on circulation in interior design. In a townhouse, that logic is amplified: every journey is vertical, so every design decision about the staircase is a decision about how daily life flows.
How to maximise space in a townhouse
The honest answer to how to maximise space in a townhouse is: use the walls, not the floor. Vertical space is the townhouse's great untapped resource.
Built-in joinery is the first move — full-height custom cabinets and wardrobes that run to the ceiling, tall bookshelves that draw the eye upward and make the most of generous period ceiling heights. Bespoke storage solutions under the staircase, in landings, and in the awkward corners a narrow plan creates will always outperform freestanding pieces. Smart storage is not about hiding life away; it is about giving every object a home so the rooms can stay calm, and the decor can stay quiet.
The second move is resisting the open-plan reflex. Knocking every wall through does not make a narrow house feel larger; it often makes it feel like a corridor. Openings, wide cased doorways, and internal glazing keep sightlines long and light flowing while preserving the structure of rooms — and with it, the sense that the house is bigger than any one view of it.
The third is discipline about function. In a vertical home, a room that earns its place on one level cannot be duplicated on another. A guest room that doubles as a study with a proper sofa bed, a landing that becomes a reading spot, a laundry stacked beside the bathrooms — functional spaces, planned once, correctly.
Colour scheme and continuity across floors
What is the best colour scheme for a townhouse? The one that understands you will experience the house in motion. You do not stand in a townhouse; you travel through it, and the palette should travel with you.
I build colour continuity around the staircase: a consistent family of tones for the stairwell, joinery, and woodwork that ties every level together, like a thread running through the house. Individual rooms can then take character — a deep green study, a soft plaster-pink bedroom, a dramatic dark dining room, even a disciplined black and white kitchen — because the connective spaces hold the composition steady. This is how a townhouse gains variety without becoming a stack of unrelated ideas, and how the whole reads as one style rather than several.
Light colours earn their reputation in the dark middle of the plan, where they make borrowed daylight work harder and the space feel larger. But an all-white townhouse interior wastes the building's capacity for atmosphere. Depth on the levels that can take it — rich walls in the evening rooms, warm grey rather than cold, warmth in the rooms you use at night — gives vertical living its rhythm. A palette of natural materials, white light, and a few bold, considered moments will always prove more timeless than a scheme built from this year's paint chart.
Light in a deep, narrow house
Natural light is the townhouse's scarcest resource, and the design must farm it. The front and back façades gather light; the centre of the plan is where it goes to die. So we borrow shamelessly: internal windows, glazed doors, open-tread stairs that let daylight fall through the section, a rooflight over the stairwell that turns the vertical void into a light well serving every level.
Mirrors, placed with intention rather than habit, extend the garden into the kitchen and double the daylight on a landing; a single generous mirror opposite a window can transform the darkest storey. And at the bottom of the house, where the garden level can turn dim, the connection to outside does the heavy lifting — generous glazing, level thresholds, a garden designed as the house's brightest room.
Furniture for a vertical home
What furniture pieces are ideal for townhouses? Pieces that respect the scale of rooms that are generous in height and modest in width. Long, low furniture fights a tall room; I prefer furniture with some verticality and legs that let the floor run visibly beneath — the room reads larger, the light travels further. A rug then does the anchoring work, holding a seating group around the fireplace or a coffee table without walling off the space.
Because a townhouse is experienced as a journey, the furniture can tell a story across levels: a modern sofa and clean-lined kitchen at garden level, a mid century modern chair on the landing, an antique commode in wood polished by a century of hands in the hall, art gathered over years climbing the stairwell. This mix of modern furniture and older, characterful pieces is what separates a home from a showroom — a contemporary townhouse interior gains warmth precisely from what is not contemporary in it. Personal touches — the objects, books, and imperfect inherited things — are not clutter for an interior designer to design away; they are the reason the house feels like yours and the decor reflects a life rather than a catalogue.
And one practical note that no gallery of townhouse interior design ideas will tell you: measure the staircase before you buy anything. The most beautiful sofa in London is worthless on the pavement.
The entrance and the codes of the city
A townhouse gives you something an apartment rarely does: your own front door to the street. That first threshold sets the tone for the whole house, which is why I give the entrance hall disproportionate attention — a real floor material, a place to sit, controlled light, the staircase announcing itself. I've set out my thinking in the studio's guide to entrance design, because the first twenty seconds of a house are a designed experience whether you design them or not.
The city writes its own rules too. A London townhouse carries English codes — the vertical Georgian proportions, the relationship of the front room to the street, the garden at the back — that deserve respect rather than erasure, and I explore them specifically in the studio's piece on London townhouse interior design. A Brooklyn brownstone, a Dutch canal house, an Amsterdam property on the water: each is a variation on the same beautiful problem of living across floors — and each is a different answer to what a modern townhouse interior can be.
Common questions about townhouse interior design
What are the best townhouse interior design ideas for a narrow plan?
Work vertically: full-height joinery, tall bookshelves, a stairwell treated as the house's centrepiece, and internal glazing to move light through the depth of the plan. Resist knocking everything open — long sightlines matter more than open space.
How do I maximise space in a townhouse?
Bespoke storage solutions in the staircase, landings, and full-height cabinets; one clear function per room; and furniture raised on legs so the floor reads continuously. Vertical space is your reserve — use it before you sacrifice a wall.
What is the best colour scheme for a townhouse?
A continuous palette for the stairwell and connective spaces, with individual rooms allowed stronger character. Light colours where the plan is darkest; depth and richness in the evening rooms. Continuity in motion is the principle.
Should a townhouse be open-plan?
Selectively. Open the garden level where family life wants one generous space; keep real rooms elsewhere. A townhouse's charm is its sequence of spaces — flatten the sequence and you flatten the house.
How long does a full townhouse renovation take?
With structural work, bespoke joinery, and proper site supervision, twelve to twenty months is honest. The staircase, services running vertically through the building, and party-wall constraints make townhouses slower — and often costlier per square metre — than lateral apartments of the same area.