Extensions & Loft Conversions

Single Storey

Adding a single storey extension presents a great alternative to moving house while adding value and personal style to your home.

They’re perfect for growing families looking to add more space and can be made to fit whatever preferences you may have.

They’re a fantastic way to add some extra space while also maximising the space you have. Plus, like with most extensions, you could design them to fit your family’s needs, be it a study, a kitchen, an extra bathroom, or a spare bedroom.

The size of your extension is determined by the size of your garden, your personal preference and most especially, planning permission.

Double Storey

A double storey house extension gives you double the living space of a single storey one, but the cost of the foundations and the roof are pretty much comparable for both build types, meaning the money spent per metre square is less with a double storey addition.

The creative process on your exciting project starts when you discuss your ideas and requirements with one of our design consultants during your initial consultation.

Loft Conversion

Loft conversions offer extra space for storage or an additional room, are attractive, require no planning permission and can help to increase the value of your home if you ever decide to sell. The building process is rarely affected by the weather; ideal if you plan to do your conversion work in winter!

Multiple Extensions

As experts in property development, Nett Assets have a proven track record in acquiring permissions and approvals for multiple extensions to a single dwelling. Whether you want a loft conversion and single storey rear extension or two storey extension our understanding of design, construction and the application process is not a skill that you will find with every Architectural Practice.

From concept to creation, we are with you every step of the way.


An annexe is defined as a self-contained living space, normally within a larger property. It has the necessary amenities for someone to live independently – a kitchen, a bathroom and normally at least one bedroom.

Annexes can exist in many forms: it may be a smaller building, away from your house but still onsite; it could be a flat or it may be a portion of a house specifically sectioned off for the use of one individual. However, to be classed as an annexe, it must share the same address as the house it’s a part of.