Double Storey & Side Extension – Viewfield Road, South East London

Project overview

This project involved a double storey extension with a side extension at a residential property on Viewfield Road in South East London. The aim was to increase the overall size of the home across both floors, creating additional rooms and improving the internal layout while keeping the extension in proportion with the existing house.

The works required careful structural planning to safely integrate the new structure with the original property at both ground and first floor level.

The work carried out

The project was delivered as a full structural extension, starting from groundwork and continuing through to internal finishes.

Works included:

• Construction of a double storey extension
  
  
• Side extension to increase the property footprint
  
  
• New foundations and blockwork
  
  
• Structural alterations to the existing house
  
  
• Installation of structural steel beams (RSJs)
  
  
• New floor and roof structures
  
  
• First and second fix electrics and plumbing
  
  
• Plastering and internal finishes throughout

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Structural & technical considerations

Due to the height and scale of the extension, structural integrity was a key priority throughout the build. Steel beams were installed in line with structural engineer calculations to support new openings and distribute loads safely between floors.

New floor levels were formed to align correctly with the existing property, ensuring the extension felt like a natural continuation of the house rather than a separate addition. All structural works were completed in line with current building regulations and building control requirements.

Managing the build

Double storey extensions require careful sequencing, particularly when works affect multiple levels of the property at the same time.

The build was planned in stages to maintain stability as the structure went up. Trades were scheduled in the correct order, materials were delivered as needed, and the site was kept organised throughout to keep the project moving efficiently.

Any details or changes were discussed clearly as work progressed, helping to avoid delays and maintain control over the build.

The finished result

The completed extension has added significant additional living space across both floors of the property. The new layout improves how the home functions day to day, providing extra rooms and better internal flow while remaining in keeping with the original house.

The extension feels well integrated, both structurally and visually, and has added long-term practicality and value to the property.

Location

Viewfield Road
South East London

Thinking about a similar project?

If you’re considering a double storey or side extension and want an experienced builder to manage the work properly from start to finish, get in touch to arrange a site visit.

We’ll review your plans, explain the structural considerations, and talk through what’s realistically involved before any work begins.