The Building Company is based in North London and covers Hertfordshire and Northern region of our capital city. We offer bespoke loft conversions, extensions & large scale refurbishments at prices to suit all budgets. We would love to hear from you and get in touch to discuss our services. We are always friendly and never use a hard sell approach.

Contact us to find out more

L Shaped Loft Conversions

In a lot of cases mid terrace Victorian properties have the added advantage of an original, double storey rear addition. if this is the case means it is possible to create a secondary dormer above the rear addition, this type of conversion is known as an L-shape dormer.

L Shaped Loft Conversions

These structures without doubt offer the greatest amount of space and can often be used to create separate rooms.


With this type of conversion it often means that clients can achieve two bedrooms and a wet room/bathroom. Some of our clients have opted to use the extra room as an nursery, study, hobby room or opting for a master bedroom with a luxurious bathroom and walk in wardrobe area.

The options for dividing up the space in an L-shape conversion are endless. Often meaning that a small two up two down property can become a four bedroom house with an en suite bathroom to the master bedroom. This type of property provides so much versatility when thinking about how to divide up the space to suit your family’s needs.
Bespoke glass features can be added to this type of conversion in the stairwells to throw huge shaft of light down both the new stairwell and brings additional light to an often dark internal first floor hallway.

Ready made Support

Not only do they provide a greater internal volume for the given floor area (compared to hipped roofs) with this type of construction the gable walls are often capable of providing ready made support for new elements of the structure such as roof and floor beams in most cases we can find room for a bedroom and en-suite bathroom.

Second additional bedroom

If there is a rear addition to the property we can sometimes build a secondary dormer above this to create a second bedroom in addition to the rooms we have already built.  To qualify as permitted development a box dormer is built on the opposite side of the building to the highway.

Request a callback

If you would like us to call you back with further information please fill out the form below and let us know what time would be best to call you.

Would you give me a call about (required)

Loft conversionKitchen extensionHome extensionBathroom 



Want more info?

We will send you further information about the services we offer by email when you get in touch.

Please email me with more information about

Loft conversionKitchen extensionHome extensionBathroom