Highgate, London

The architect-owners of a mid-20th-century Brutalist house in the Highgate section of London wanted it updated, but didn't have the time to do it themselves. Knowing that Duggan Morris Architects shared their appreciation for the original building's aesthetic, they hired the firm to execute a thorough renovation.

Design concept and solution: The program revolved around the twin strategies of retention and invention. The most obvious retention was the renovation of the external blockwork to closely match its original state from 1967. Where elements were replaced, the team sought to replicate the original with close matching contemporary components. For example, the rear glazing and prism were replaced with double-glazed units designed to closely match the original, while the thin screed layer at ground floor level was removed and replaced with a new build-up of insulation, a wet under-floor heating system, and a polished concrete topping.

The layout of the property was largely retained, however the primary thrust of the project involved removing two main supporting cross walls and replacing them with a new arrangement of steel beams and columns. The intention here was to create an open plan flexible living arrangement, which could take greater advantage of the south-facing rear-glazed façade. The steel columns and beams hold up the building, but also clearly communicate where the major alterations have taken place.

Working with a landscape architect, the team sought to extend the grid pattern of the house out into the rear garden, thus integrating building and landscape firmly. At roof level, a sedum layer was installed to enhance building insulation, while at the same time extending the landscape up over the building back to the front gardens and street. Nine mature Himalayan birch trees have been planted in a new wild flower meadow at the rear, and a large tulip tree now occupies a new planter.

The house won a Royal Institute of British Architects Manser Medal for the best new house in the UK in 2011.

People

Owner: Private

Completion Date: September 2010

Gross square footage: 2153 sq. ft.

Total construction cost: £500,000

Architect
Duggan Morris Architects
Unit 1 Zeus House
16-30 Provost Street
London, N1 7NG
Telephone +44(0)20 7549 1780
Facsimile +44(0)20 7014 3119
www.dugganmorrisarchitects.com

Personnel in architect's firm who should receive special credit:
Architect of record
Joe Morris
064923F (ARB, Architects Registration Board)
10282388 (RIBA, Royal Institute of British Architects)

Mary Duggan
066530D (ARB – Architects Registration Board)
11155679 (RIBA, Royal Institute of British Architects)

Associate architect(s)
Mark Shaw (ARB No.072336C)

Engineer(s)
Structural: Elliot Wood (www.elliottwood.co.uk)

Environmental Services: Banyards (www.banyards.co.uk)

Consultant(s)
Landscape: Gillespies (www.gillespies.co.uk)

Other:   
Quantity Surveyor:  Aecom (www.aecom.com)
Party Wall Surveyor:  BCS Consulting (www.bcsconsulting.com)
General contractor: ME Construction (www.meconstruction.co.uk)

Photographer(s)
James Brittain  
mail@jamesbrittain.co.uk
Tel: (00) 1 514 866 0387.

CAD system, project management, or other software used: Bentley Microstation iV8; Sketch up

 

Products

Structural system
Concrete block and internal steel frame

Exterior cladding
Masonry: concrete block
Lignacite
www.lignacite.co.uk
tel: +44 (0) 01842 810 678

Metal/glass curtainwall:
aluminum sliding glazing
Fineline LTD
www.finelinealuminium.co.uk
Tel: +44 (0) 1934 429922

Wood: Hardwood timber frames

Roofing
Built-up roofing: single-ply membrane and plug planted intensive green roof system (Sarnafil, www.gbr.sika.com)

Windows
Aluminum:
Fineline LTD
www.finelinealuminium.co.uk
Tel: +44 (0) 1934 429922)

Skylights:
Fineline LTD
www.finelinealuminium.co.uk
Tel: +44 (0) 1934 429922)

Doors
Entrances: Fineline LTD
www.finelinealuminium.co.uk
Tel: +44 (0) 1934 429922)

Metal doors: (Fineline LTD
www.finelinealuminium.co.uk
Tel: +44 (0) 1934 429922)

Hardware
Locksets: Allgood
www.allgood.co.uk
Tel: +44 (0)20 7387 9951

Hinges: Allgood
www.allgood.co.uk
Tel: +44 (0)20 7387 9951

Closers: Allgood
www.allgood.co.uk
Tel: +44 (0)20 7387 9951

Pulls: Allgood,
www.allgood.co.uk
Tel: +44 (0)20 7387 9951

Security devices: Vulcan alarms

Cabinet hardware: JMS joinery

Interior finishes
Cabinetwork and custom woodwork: Bespoke joinery by JMS joinery

Paints and stains: Dulux paint, Sadolin wood stain

Floor and wall tile:
polished concrete screed by Steysons www.steysonconcretefloors.co.uk

Furnishings
Chairs: owners original Eames chairs

Tables: Original Nomos table by Norman Foster

Lighting
Interior ambient lighting:
by Modula lighting
www.modular-lighting.co.uk

Downlights:
By Modula lighting
www.modular-lighting.co.uk

Add any additional building components or special equipmentthat made a significant contribution to this project:
kitchen by Bulthaup
www.en.bulthaup.com
Tel: +44 (0)844 846 7810