Direct Access to Experienced Structural Engineers

Tashi Structures provides structural engineering services for homeowners, architects, developers, contractors and commercial clients across Dorset, Hampshire, Wiltshire and the South of England. From structural inspections and defect investigations to alterations, extensions and commercial developments, we deliver clear advice, practical solutions and responsive service directly from experienced engineers, without the layers of a large consultancy.

Why Tashi

Large Consultancy Expertise. Independent Consultancy Service.

Tashi Structures combines the technical capability of a major engineering practice with the responsiveness and personal service of an independent consultancy. Every project is led directly by Lewis Osborne, an experienced structural engineer with nearly two decades of industry experience across domestic, commercial, education, healthcare, industrial and residential sectors.

Where additional resources are required, Tashi Structures draws upon a carefully selected network of trusted collaborators including Chartered Structural Engineers, Civil Engineers, Project Engineers and Technicians. This flexible approach allows clients to benefit from specialist expertise and scalable project delivery without the overheads, delays and bureaucracy often associated with larger organisations.

The result is practical, cost-effective engineering delivered by people who understand both the technical and commercial realities of construction projects.

Clear Advice. Practical Solutions. Reliable Engineering.

About

Meet Lewis Osborne

Lewis Osborne is the founder and director of Tashi Structures Ltd.

With almost 20 years of structural engineering experience, Lewis has worked on projects ranging from domestic alterations and bespoke private homes through to multi-million-pound commercial developments, schools, healthcare facilities, industrial buildings and major residential schemes.

What our clients say

Lewis is highly professional, patient, efficient and reliable, responded to add to check on a structural wall. Gave advice on more than one wall and was very helpful.

Hannah Ramage

I contacted Tashi Structures regarding a structural survey that I needed in order to look at an open plan kitchen. Lewis came out to the flat and went through the plans and put together the requested report. Lewis offered advice and thoughts re the work when it turned out the wall was structural. This was above the ask and was really appreciated, an on the icy on the cake. I would definitely recommend Lewis to friends and family

Steven Baldwin

Great work! Even with our limited time frame Lewis was able to fit us in, investigate the project and give us an in depth project plan for our works needed doing and guide us in regards to planning permissions and building regulations etc. Even giving up his own weekend to make sure we had what we needed in time, 10/10 top bloke!

Benjamin jenkins

Lewis provided a complete and detailed analysis of my brickwork problem with probable reasons, prognosis, and details of remedial action. Thank you Lewis Osborne

Ray Woolhouse

Lewis was very informative regarding cracks in a wall in our cellar. I would highly recommend Lewis and Tashi Structures for all your structural engineering needs. Thank you.

Tony Whittle

I needed a structural engineer at short notice. Spoke to Lewis and he arranged to come round in an evening to do the survey. Very professional and helpful, report came back within a couple of days well written and clearly explained. Would thoroughly recommend.

Kev Gibson

Lewis completed the work requested promptly and provided a good investigatory service.

Joseph Langford

Very happy with the timely service. Everything easy to understand. Thank you.

David Bessant

Lewis carried out a structural inspection of a property we are in the process of purchasing. We received a highly detailed and thorough report that was of excellent quality. Lewis was professional and easy to communicate with throughout, including contacting the estate agent directly to organise his site visit which made our lives that bit easier. I wouldn’t hesitate to recommend his services.

Guy Ellis

Quick response to my initial inquiry, great communication, very professional yet friendly and approachable.

Laura Murphy

Lewis was pleasant, polite and turned upon time. He was very thorough checking not only what I had asked to but also the rest of the property. He report arrived promptly and was very thorough confirming what he had told me verbally and making necessary recommendations. I would have no hesitation in using Lewis again or recommending him.

Sandra Aldridge

We required a structural report in support of our kitchen conversion. Lewis explained all my potential options which was reflected in the report. Highly recommend Lewis if requiring a structural engineer.

Jamie Swann

FAQs

Common questions

Do I need a structural engineer?

A structural engineer is typically required where there are concerns regarding the structural condition of a building, or where alterations, extensions or new construction works are proposed. We provide advice for homeowners, purchasers, architects, contractors, developers and commercial clients across a wide range of project types.

What’s the difference between a structural engineer and a surveyor?

Surveyors provide a broad assessment of a property’s overall condition, whereas structural engineers specialise in the performance, stability and integrity of structures. Surveyors will often recommend further investigation by a structural engineer where structural concerns have been identified or where specialist advice is required.

How quickly can you visit?

Site inspections can typically be arranged within a week of instruction. Where timescales are critical, we will always endeavour to accommodate urgent requirements wherever possible.

Can you help if cracks have appeared in my property?

Yes. Cracking, movement and structural defects are among the most common reasons clients contact us. We can investigate the likely cause, assess the significance of any defects observed and provide clear recommendations for any further action required.

Do you work with architects, contractors and developers?

Yes. Alongside residential projects, we regularly provide structural engineering support for architects, contractors, developers, commercial property owners and other construction professionals, from initial feasibility advice through to detailed design and site support.

Can you help before I buy a property?

Yes. We regularly undertake pre-purchase structural inspections for prospective purchasers seeking reassurance regarding the condition of a property or concerns raised by surveyors, lenders or insurers.

Do you undertake commercial projects?

Yes. We provide structural engineering services for commercial, industrial and mixed-use developments, including refurbishments, alterations, fit-outs, change-of-use projects, inspections and technical advisory commissions.

Direct Access. Practical Solutions.

Clients work directly with experienced engineers, benefiting from clear communication, pragmatic advice and a responsive service throughout the life of a project.

Discuss your project

Get in touch to talk through what you need.