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J Foster Architects completes £100k ‘tardis-like’ infill extension

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J Foster Architects has taken the wraps off this underground extension to a house in Highgate, North London

PLANS • SECTIONS • ELEVATIONS • AXONOMETRIC • DETAIL • PROJECT DATA • ENTER THE AJ SMALL PROJECTS AWARDS

The £100,000 ‘room for a musician’ creates a trio of subterranean spaces designed to rid the client’s duplex flat of its damp and poorly lit master bedroom.

A redundant side section of the garden has been excavated to create a 6m2 glazed, internal lightwell – a space for the client to compose and practice music.

The extension flows out to the garden via a level threshold and glazed pivot door which lead onto new external steps.

The project has been submitted to the 2017 AJ Small Projects Award.

See more entries to this year’s awards

Site plan

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Lower ground floor plans

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Upper ground floor plans

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Elevations

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Sections

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Axonometric

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Detail

Sotheby Road by J Foster Architects

Sotheby Road by J Foster Architects

Project data

Location Highgate, North London 
Type of project house extension
Architect J Foster Architects
Client private
Main contractor Polbath
Structural engineer Momentum
Party wall consultant FFT
Approved inspector Assent
Start on site January 2013
Completion November 2016
Floor area 23m2 added, 123m2 in total
Total cost £100,000
Funding private
Procurement RIBA Domestic

Ajsp 2017 twitter silver 1

Ajsp 2017 twitter silver 1

How to enter the AJ Small Projects Awards

1. Head to the AJ Small Projects Awards website, register and pay your entry fee.

2. An email will then be sent to you with log in details for the AJ Buildings Library. 

3. Upload your project to the AJ Buildings Library. You will need to provide: 

  • A 150-300 word text describing your project
  • At least eight photographs, five drawings and one working detail to illustrate your project. Images should be copyright free and high resolution.
  • Project details including name of practice, name of project, date of completion, total cost, gross internal floor area, client, structural engineer, services engineer, quantity surveyor, main contractor, and other subcontractors and suppliers

Conditions

  • Entries must have been completed between 1 January 2015 and 31 December 2016
  • All entries must have a maximum total contract value of £250,000
  • Projects must not have had significant coverage in the architectural press (if your project has been covered elsewhere, please declare where)
  • Projects must be located in the UK or built by a UK-based practice abroad
  • All entries will be displayed in the AJ Buildings Library

Deadline 20 January 2017

 

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