Bespoke Joinery in Swiss Cottage, NW3

Camden's design guide for South Hampstead, still titled Swiss Cottage, picks out patterned timber doors and windows, terracotta panels, ornate brickwork and grand entrance porches as what gives those streets their character.

Over on Eton Avenue, the houses share white-painted timber sashes and casements split by glazing bars into small panes.

Our joiners design, build and install for houses and flats across Swiss Cottage, anything from a single alcove cupboard to a set of sashes or a full kitchen, and they mend existing woodwork too. This page walks through the kinds of work we take on; for everything else, see our wider Swiss Cottage services.

Sources: Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026), Camden: Belsize Conservation Area Statement (agreed 20 November 2002)

Sash and casement windows: repair first

Camden's guide says period windows and doors last indefinitely when an owner keeps them up with the odd visit from a joiner, and that over the long run repair costs less than renewal.

Rotten sills and bottom rails are cut back to sound wood and pieced in with matching timber, sash cords and pulleys are renewed, and a discreet brush seal ends the winter rattle.

Where a sash is past saving, a copy that matches its bars, frame, cill and opening needs no planning permission on the South Hampstead side.

The factsheet asks for the old catches, handles and pulleys to be refitted on the new window wherever possible.

Sources: Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026), Camden: Swiss Cottage Conservation Area, what the new planning measures mean for you (Article 4(1) factsheet, 1 September 2010, updated June 2026)

Setting a new window at the right depth

The Fitzjohns/Netherhall appraisal treats a window's recess, how far back it sits in the wall, as part of a building's architecture, to be respected when windows are renewed.

It recommends that applications carry sections and large-scale drawings of frame profiles and recesses.

Each new frame is set out full size from the one it replaces, so the reveal, the projecting sill and the shadow it throws on the brickwork all match the windows alongside.

Source: Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022)

Secondary glazing, double glazing and shutters

Inner secondary glazing is free of planning control, with its meeting rails lined up on the existing bars, and Camden's guide puts the saving at 60% of heat loss when it is used with well-fitting shutters.

A large-paned window can sometimes be double glazed in a way that still reads as original, in the old frame or in new joinery, though this needs permission.

Shutters that have been painted closed are freed, rehung and fitted with fresh catches. Where they are missing, we make panelled leaves that fold back into the window reveal.

Source: Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026)

Leaded and stained glass

Stained, etched or lead-came glass in doors and windows should always be kept and mended with specialist help, according to Camden's guide.

Leaded lights come out of a door or sash before it travels to the workshop and go back in afterwards, while a glazier re-leads any cracked or bulging panels.

Source: Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026)

Front doors and porches

In the Fitzjohns/Netherhall area many houses and mansion blocks are entered through open porches with recessed doors, and some houses have large studio windows.

On King Henry's Road, one run of townhouses has open porches with stucco capitals and the next closed porches detailed in brick.

On the South Hampstead side, building a new porch or changing an old one at the front needs permission and will be resisted.

While the front door is away for repair, a lockable temporary door keeps the house secure; the original returns with its joints re-glued, its panels re-seated and its brass cleaned.

Sources: Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022), Camden: Elsworthy Road Conservation Area Appraisal and Management Strategy (adopted 14 July 2009), Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026)

Wardrobes around bays and chimney breasts

Bedrooms in these houses tend to have a canted bay at one end and a chimney breast on a side wall, so wardrobes are fitted into the recesses beside the breast and the bay is left free for a seat.

Inside, rails are positioned around the owner's own clothes, with long hanging, short hanging and deep drawers each sized to what goes in them, and a sensor light in every bay.

In an attic bedroom the cupboards step down under the slope, with drawers where the ceiling is lowest and a small door into the eaves for cases.

Libraries, alcove shelving and chimney breasts

Alcove shelves are scribed to plaster that is rarely true, and the room's skirting runs on beneath them so the shelving looks original.

For a wall of books, each shelf is sized to its span and load so it never bows, and the uprights are anchored back into solid masonry.

Taking out a chimney breast for more space needs no planning permission, but it always needs building regulations approval and a structural engineer's design.

Source: Planning Portal Interactive House: Do I need permission to remove chimney breasts?

Kitchens, dressers and larders

On William Willett's estate, the appraisal notes, kitchens were placed on the ground floor so that servants worked and lived in better conditions.

Whether a kitchen sits by the garden or on the entrance floor, cabinets are planned around the sink, the extract duct and the window, and tall units stop short of any cornice.

A freestanding painted dresser or a slatted larder can hold the plates and dry goods that would otherwise need a wall of upper cupboards.

Source: Camden: Elsworthy Road Conservation Area Appraisal and Management Strategy (adopted 14 July 2009)

Joinery in mansion flats and apartment blocks

A lease may require the landlord's consent before alterations, and its other clauses can limit finishes, timber floors being a common example.

East of Fitzjohn's Avenue there are large mansion blocks, and Eton Avenue has Eton Court, a brown brick apartment block of the 1920s.

Stairwells and lifts set a maximum panel length, so we measure the route in before cutting anything and divide long runs into sections with hidden joints.

Sources: LEASE: alterations and home improvements, Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022), Camden: Belsize Conservation Area Statement (agreed 20 November 2002)

Stairs, balustrades and handrails

A worn staircase can stay original: broken nosings are let in with new timber, wobbling balusters are re-fixed, and the handrail is stripped back and re-polished.

A missing baluster is copied on the lathe from a survivor, and once painted the replacement disappears among the rest.

Stairs to a new attic room are made in our workshop in sections and assembled in the house, with the string cut to the room's actual walls.

Studies and studio rooms

A built-in study desk gets its sockets, data points and lamp in the drawing, plus doors or a flap to hide the paperwork when the day is over.

Where a room is lit by a tall studio window, cabinets on that wall are kept low so daylight carries to the back of the room.

Bookcases with a ladder rail suit the high ceilings of the bigger houses, and the ladder hooks away when not in use.

Window seats, radiator cabinets and hall cupboards

A canted bay makes a natural window seat: the lid lifts for blankets or toys, and a cushion is cut to the bay's angled plan.

Where a radiator stands under the window, its cabinet is given a slotted top and an open plinth, so warm air still rises into the room instead of being trapped behind timber.

In a narrow hall, a shallow cupboard under the stairs or beside the front door can take coats, boots, the pushchair and the meters, with louvred panels where a cupboard holds a boiler or an electricity board.

Fitting without cutting into the house

Alterations should disturb as little historic fabric as possible, keep original windows, chimneys and ornament, and as far as they can be reversible, working around old fabric rather than cutting into it, the Fitzjohns/Netherhall appraisal says.

That is how we fit: cupboards are scribed round cornices, dados and skirtings instead of cutting them back, and held by a few concealed brackets that can be undone later.

Source: Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022)

Timber, finishes and ironmongery

The same appraisal encourages traditional materials, timber windows and detailing among them, and says plastic should not stand in for timber where timber was used originally.

Painted work is built from stable sheet material or tulipwood, and furniture that shows its grain from oak, ash or walnut, with boards chosen in sequence so the figure flows.

Colour and finish samples are left in the room for a few days, so they can be judged in morning light and lamplight before the spraying starts.

Hinges, knobs and catches are chosen to suit what survives in the house, in brass, bronze or iron, and sized to the weight of each door.

Source: Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022)

From survey to installation

We open with a measured survey and present plans, elevations and sections for approval, listing every timber and finish.

While the room is being plastered and floored, the pieces are built in the workshop; they arrive afterwards, and the final coat of paint is put on in the room.

Power tools are used on a Swiss Cottage site only within Camden's noisy-work hours, which run from 8am to 6pm Monday to Friday and 8am to 1pm on Saturday.

A return visit after the first winter's heating lets us ease any drawer or door that has moved, and we file the drawings so future pieces can match.

Source: Camden Council: noisy building works

Questions about bespoke joinery in Swiss Cottage

Are my Swiss Cottage sashes worth repairing?

Usually: Camden's guide says well-kept historic windows last indefinitely and repairing timber is cheaper over time.

Will an exact copy of my old window need planning permission?

On the South Hampstead side, not if it matches the original's bars, frame, cill and opening.

Can leaded panes in my front door be saved?

Yes, with a specialist glazier; Camden says decorative glass should always be kept and repaired.

Is secondary glazing allowed without an application?

Yes; Camden asks only that its meeting rails sit in line with the window's glazing bars.

Is fitted joinery in my flat subject to the lease?

Often: the landlord's consent may be needed, and some clauses restrict finishes.

Could the chimney breast make way for a wardrobe?

With building regulations approval and an engineer's design; an internal breast needs no planning permission.

Sources: Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026), LEASE: alterations and home improvements, Planning Portal Interactive House: Do I need permission to remove chimney breasts?

Related pages

Sources

• Camden: Swiss Cottage Conservation Area Design Guide (updated June 2026)
• Camden: Belsize Conservation Area Statement (agreed 20 November 2002)
• Camden: Swiss Cottage Conservation Area, what the new planning measures mean for you (Article 4(1) factsheet, 1 September 2010, updated June 2026)
• Camden: Fitzjohns/Netherhall Conservation Area Character Appraisal and Management Plan (December 2022)
• Camden: Elsworthy Road Conservation Area Appraisal and Management Strategy (adopted 14 July 2009)
• Planning Portal Interactive House: Do I need permission to remove chimney breasts?
• LEASE: alterations and home improvements
• Camden Council: noisy building works