Service

Garages & Outbuildings

Structural design for garages, garden rooms, annexes, workshops, retaining walls, swimming pool structures and a range of other ancillary residential developments.

Domestic projects often extend beyond the main dwelling and can involve significant structural and ground engineering considerations. Whether constructing a retaining wall to accommodate changes in level, building a detached garage, creating a garden office, or developing a bespoke outbuilding, Tashi Structures provides practical and proportionate engineering solutions tailored to the specific requirements of each project.

Our services include foundation design, retaining structures, masonry, timber and steel-framed buildings, external staircases, raised terraces, boundary structures and other specialist residential elements. Designs are developed with buildability, durability and cost-efficiency in mind, providing clear calculations and construction information suitable for Building Control approval, contractor pricing and construction.

Key points

Detached garages and garden offices
Annexes, workshops and outbuildings
Retaining walls for level changes
Foundation and retaining structure design
Masonry, timber and steel-framed structures
Information for Building Control and pricing

When you need this

Structural design is needed for new ancillary buildings such as garages, garden rooms or workshops, and for site works including retaining walls, raised terraces, external staircases and boundary structures. It is particularly important where ground levels change or where a structure must retain soil.

Frequently asked questions

Do garden rooms and outbuildings need structural design?

Many do, particularly where foundations, retaining elements or specific framing are involved. We design the structure to be buildable, durable and cost-efficient for its intended use.

When is a retaining wall design required?

Where ground levels change and soil must be held back, a properly designed retaining structure is needed to resist the loads safely. We design retaining walls suited to the levels, ground and surrounding structures.

Will these structures need Building Control approval?

Many ancillary structures require Building Control approval, depending on their size and use. We provide the structural calculations and details that support your application.

What materials do you design in?

We design masonry, timber and steel-framed structures, selecting the most appropriate approach for the building, the site and your budget.

Can your design be used to obtain builder prices?

Yes. Our calculations and construction details give contractors the information they need to price and build the works accurately.