Swiss Cottage Renovations & Design-Build — NW3

Camden locates the Swiss Cottage of tradition around Finchley Road, the library and the former Swiss Tavern, a chalet-style inn of 1804 put up where a tollgate keeper's cottage had stood.

West of the junction, the conservation area carried the Swiss Cottage name until February 2011, when Camden retitled it South Hampstead, partly because Swiss Cottage proper is on the far, eastern side of the road. Our guide to red-brick South Hampstead, across Finchley Road deals with that side.

North east of Finchley Road lies Camden's Fitzjohns/Netherhall Conservation Area, designated in 1984 and enlarged in 1988, 1991 and 2001.

Southward, the Elsworthy Conservation Area spans Primrose Hill Road to Avenue Road, where Camden meets the City of Westminster, and King Henry's Road forms its northern edge.

The Belsize Conservation Area stops at College Crescent, described in Camden's statement as its westernmost edge and marked by a busy road frontage. Beyond it lie the paired stucco villas of Belsize Park.

For that reason a Swiss Cottage enquiry begins with the postal address and a boundary map, and only then with design.

Sources: Camden: South Hampstead Conservation Area Character Appraisal and Management Strategy (February 2011), 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: Belsize Conservation Area Statement (agreed 20 November 2002)

Fitzjohn's Avenue runs down to College Crescent, where the Palmer Memorial Drinking Fountain anchors one of the few small public spaces nearby. That fountain and No. 40 College Crescent, built of grey and red Reading brick under a Dutch gable, are each listed Grade II.

A 50-foot roadway and 10-foot pavements shaded by mature trees define the avenue, and its houses rise mostly four or five floors in yellow and red brick, often over raised ground floors.

A short length of Finchley Road itself forms the western boundary of that conservation area, with steps climbing to the Netherhall Gardens cul-de-sac, a steep street of houses reaching five and six storeys.

Daleham, Maresfield and Netherhall Gardens run straight and parallel with Fitzjohn's Avenue, and behind all four lie wide blocks of back gardens joined together.

Car parking cut into front gardens, with the boundary walls removed, is recorded by Camden as harm to the avenue.

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

Camden's Article 4(1) factsheet for South Hampstead still appears under its old Swiss Cottage title, with a date of 1 September 2010 and a June 2026 update.

There, on a street-facing elevation, replacing a period window or door with a new pattern or material is unlikely to win approval; Camden's advice is to copy the original and carry over its catches, handles and pulleys.

Rooflights on the street side of a roof face the same resistance, and a flat needs permission for any new rooflight at all, the back slope included.

Applications to pave a front garden are unlikely to succeed, and old tiled paths and York stone are to be mended where they lie.

No fee is charged for an application made necessary only by the direction, and the existing controls at the rear are unchanged by it.

Sources: Camden: Swiss Cottage Conservation Area, what the new planning measures mean for you (Article 4(1) factsheet, 1 September 2010, updated June 2026), Camden: South Hampstead Conservation Area Character Appraisal and Management Strategy (February 2011)

Behind Daleham, Maresfield and Netherhall Gardens, the appraisal describes open ground made of many rear gardens joined together, and asks new building, garden rooms included, not to encroach on it significantly.

Nutley Terrace, which cuts across those avenues, gives glimpses into that ground between the side walls of the houses.

Garden trees and hedges should be kept; where a tree must go, a similar one is planted nearby, and tree work in the Fitzjohns/Netherhall area is notified to Camden first.

On Eton Avenue and Fellows Road, the Belsize statement asks an application to show every tree within 10 metres of the proposed work, underground work included.

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

Planning decisions here rest on Camden's Local Plan, adopted on 3 July 2017, whose Policy D2 expects work in a conservation area to preserve its character or, where it can, improve it.

Camden asks every conservation area application for a heritage statement that sets out what matters about the place and justifies any harm.

A listed house is protected throughout, later additions and interior alike, and Camden regards work done without consent as a crime even when the owner was unaware the building was on the list.

Planning permission and building regulations approval are distinct, and a project may need both; that approval can come from Camden's own building control service or from a private approver on the register.

Pruning or felling a conservation area tree whose trunk measures over 75mm at 1.5 metres up requires advance notice to Camden.

Sources: Camden Council: Camden Local Plan, Camden Local Plan 2017, Camden Council: Conservation areas, Camden Council: Listed buildings, GOV.UK: Building regulations approval

Our opening visit records three things, the building, the street and the document governing it, and from those we write a scope that sorts the work into repairs, alterations and new building, each with the consent it requires.

Whether a drawing is meant for planning, listed building consent or building control, it comes from the people who will later build from it, so price and design stay linked.

When work begins, a single project lead manages the site, keeps neighbours and any managing agent up to date, and sends the client a weekly report.