Underground Space We moved 3000 tons of earth to construct this impressive space.
About OBC
Testimonials
Registered Builders
FAQ's
Locations
Builders Bromley
Builders Sevenoaks
Builders Tunbridge Wells
Builders London
Portfolio
Underground Space
Single Story Extension
Contemporary Extension
Mycenae Restoration
Chislehurst Project
Basement Room

200m2 Underground space with vaulted arch details

At this site, our Bromley Builders successfully excavated 3000 tons of earth to construct this impressive underground space. The structure also emerges out of the ground to the front, which provides a large double garage.

The space underground is ventilated with a high tech heat recovery unit and the building is heated via under floor-wet system. Light is provided by the huge lantern, which will sit nicely within the garden grounds above. The front section of the basement has retro fitted arches to add some character using a combination of second hand London yellow stock bricks and reds for the arch.

This 200m2 underground space with vaulted arch details is in its second stage of development. Here is an image update of the progress so far.


  • This basement conversion project resulted in an impressive large double garage.
  • Our Bromley builders used the same bricks for the garage as the underground vaulted arches.
  • OBC’s Trustmark Builders specialize in basement excavation and cellar conversions.
  • Our OBC London builders work in the Bromley, Tunbridge Wells and Sevenoaks area.
  • A side angle view showcases the impressive skills of OBC's Trustmark builders.
  • OBC's bromley builders have now completed the second stage of the underground space and will move on to the final stage.

Our Bromley Builders recently started developing an underground space with vaulted arch details.


  • For building projects of this size we had to bring in the construction vehicles
  • The structure will emerge out of the ground to the front, providing space for a large double garage
  • It's only once you get into the excavated space that you realise how much 3000 tons of earth is
  • Our experience in loft conversions and extension projects all over Bromley, Tunbridge Wells and Sevenoaks have taught us how to solve almost any lighting problem.
  • The light is provided by the huge lantern, which will sit nicely within the garden grounds above.
  • This supporting arch was made using a combination of second hand London yellow stock bricks and reds for the arch – adding to the look and feel of the existing building.
  • This impressive extension project is close to being completed.
  • OBC’s Bromley Builders have retro fitted the arches at the front section of the basement to add some character to the underground space.
  • OBC’s Bromley Builders excavated 3000 tons of earth to construct this impressive underground space.

Finsihing images to follow

© OBC Building 2012
Follow us on Twitter
Follow us
on Twitter
Builders Bromley - View our showreel
Trustmark - Government Endorsed Standards National House-Building Council (NHBC)
FMB - Federation of Master Builders EBC - European Builders Confederation
OBC Building is an NHBC and Trustmark registered building and construction company operating in Bromley, Sevenoaks, Tunbridge Wells and London. Services include loft conversions, basement conversions, building extensions, home refurbishment and new home builds. We pride ourselves in providing professional quality work at a fair price.
Web Design by Lilo London