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The entrance of a restored stucco terraced house from the street: paired Ionic columns, black double doors, tiled steps and black iron railings, with the restored terrace running away behind.

Warwick Avenue, external restoration

A collective of freeholders, through their chartered building surveyor · Principal contractor · Maida Vale, W9 · Grade II listed mid-nineteenth-century terraced house · Full external restoration of a Grade II listed Victorian terraced house: stucco and cornice reconstruction, parapet render, portico and balcony, sash repairs, roof and leadwork and redecoration · April to June 2025 · Credits below

A Grade II listed Victorian terraced house on Warwick Avenue, Maida Vale. We won the tender and acted as principal contractor for the chartered building surveyor, on behalf of a collective of freeholders. The work covered the front and the rear: roof and leadwork, parapet render, the portico and balcony, the stucco cornices and mouldings, the sash windows and the decoration.

The brief

Earlier repairs to the stucco had been made in non-breathable hard cement fillers over soft, crumbling lime-based stucco. That trapped moisture behind the repair and turned the original moulding to dust. When we began the wash-down and preparation, large sections of the paintwork delaminated. Above, the high-level parapet walls needed render renovation and the lead flashings around the skylights needed refurbishment. The portico and balcony at ground floor were taking water. The sash windows carried wet rot.

The surveyor needed one contractor to take the whole external restoration, front and rear, on a listed building and to hold the site while it happened.

Our approach

We prioritised the roof and portico leaks before touching anything cosmetic. There is no point rebuilding a cornice under a roof that still lets water past.

We stripped the stucco back, stabilised it and rebuilt it by hand where it had failed. All of the cornice is stucco, and the profile is unique to the building, so there is nothing to buy off the shelf and no template to work from. We sculpted the repairs in sand and cement, true to the original pattern, then brought them up in layers of external skim filler and sanded them back before decorating.

On the sash windows we removed the rot, spliced in new timber where needed and bonded the repair with Repair Care Dryflex, a two-part resin system. We repaired them rather than replacing them.

On site

The house carries a Grade II listing. Officers from the council visited the site during the works and put their questions to the surveyor.

The building remained fully occupied throughout. We managed the complex site logistics and scaffolding licences required in Westminster, keeping access safe and clear for residents at all times.

The result

A front that reads as one elevation again rather than a record of its own repairs. The rebuilt sections of cornice follow the original pattern. The stucco carries an even finish. We repaired and spliced the sash windows rather than replacing them. The front door is back to a glass-like finish, the ironwork is jet black and the number sits on the stucco pier beside the door. We completed the external restoration in June 2025, handing back a fully protected, watertight period front.

Photographs

A run of stucco cornice and a console bracket with heavy paint loss and patched repairs, a large black patch of failed render, and two Ionic capitals over arched window heads below
The main cornice on 9 April 2025, seen along the elevation. The earlier patches show as darker rectangles
A dentilled stucco cornice with large areas of paint and render missing and bare substrate exposed between the dentils
Closer on the same run. The paint had let go in sections and taken the surface with it
A moulded scroll band beneath a window, cracked through and losing its profile, with a painted sash above
An enriched band under a first floor window, cracked through and losing its line
A sash window sill with a decorative cast iron guard, paint flaking from the sill and the moulding beneath
A sill and its iron guard on 14 April, before the joinery repairs
The four storey stucco terrace under full scaffold with blue debris netting, seen from the pavement opposite
The elevation on 2 April, scaffolded to the parapet. Everything above ground floor was reached from this one scaffold
A glazed rear door with horizontal glazing bars in a painted rendered wall, a small window to the left and a rainwater pipe to the right
The rear door on 14 April. Staining runs from the pipe fixings and the render is tired
Two arched sash windows in moulded stucco surrounds with keystones, and beneath them an enriched band of linked ovals and carved leaves over a dentil course, freshly painted
The enriched band on 6 June, rebuilt and repainted. It runs as one continuous line again
An enriched stucco band of linked ovals and carved leaves over a dentil course, running away along the finished elevation with the street below
The same order of enrichment on 6 June, rebuilt and repainted. The band runs unbroken along the front
The same rear door repainted white in a clean rendered wall, the staining gone and the window reveal sharp
The rear door on 25 June. The same view as frame 6, ten weeks apart
The finished cream stucco elevation seen along the scaffold lift, with the cornice, the enriched band, the Ionic capitals and the arched window heads all complete
The elevation from the scaffold on 6 June, before the scaffold came down
A full width run of black cast iron railings with spear heads and acanthus finials, in front of the finished cream stucco elevation, with sash windows above and the basement area below
The railings and the finished stucco on 25 June, scaffold down. The front reads as one elevation again

Credits

  • Surveyor: Paradigm
  • Photography: SFS Interior & Exterior

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