About Us

Trigon Survey & Investigations is owned and managed by Vaughan Snook, who is both a Chartered Engineer and member of the Institution of Civil Engineers.
Based in Basingstoke, Hampshire, Trigon Survey and Investigation Ltd is owned and managed by Vaughan Snook, who is both a Chartered Engineer [view profile]. Trigon has comprehensive experience in the production and use of land surveys. Our aim is to provide builders, developers, architects, garden designers and private clients with a high quality personal service that delivers diligence and attention to detail. Covering every aspect of land surveying, Trigon provides 2D and 3D topographical surveys (‘topo surveys’) to OS grid and datum, or to a suitable local grid and level datum if OS is not required. Trigon is fully insured with public and products liability (£2m), employers’ liability (£10m) and professional indemnity (£1m). Learn more about our services by contacting 07864 269005 or email Vaughan@trigonsurvey.co.uk.  

Our Areas of Expertise

Trigon has over 30 years experience working on the front line of a wide range of civil engineering and private sector development projects.

Prior to any development project, it’s advisable to obtain a full survey of the land or site. As many professionals and individuals will testify, an accurate and comprehensive land or garden survey is invaluable when it comes to avoiding costly mistakes later in the process.

Trigon use the highest specification surveying instruments and ancillary equipment to deliver this.

Land, Topographical and Garden Surveys

We provide a high quality land survey service for new developments, as-built records and gardens for landscaping design. 

Read more about this service here.

HM Land Registry Compliant Title Plans

Read more about our Land Registry title plans service here.

Garden Surveys for Landscaping Design

Read more about our garden surveys here.

I have worked with Trigon now for over 6 years, and have always been impressed with the quality of service and expertise by Vaughan Snook.

M Jensen

We had Vaughan come over to carry out a survey prior to the garden being Landscaped. Initial contact was swift and organised. Brilliant service and professionalism all round. Would highly recommend.

Michael Reeves

We found Vaughan to be very helpful and efficient. He kept us well informed with anything we needed to know and any changes.

Jane Batey

Vaughan provided a precise level monitoring service to a property over a period of eight months. Every step of the way from discussing and understanding requirements at the outset, arranging and making visits, providing level survey results and responding to queries was first class. Recommended.

Andrew Haste

An efficient and professional service .Trigon worked to tight deadlines and provided Basingstoke & Deane Borough Council with all the plans they required .Trigon also worked in harmony with Vail Williams planning consultants .M3 Junction 7 Self Storage

Anthony Wickham

Vaughan provided us with a site survey that fitted our needs exactly. We were delighted with the result and the files provided meant we could submit our planning proposal to a very professional standard. The detail provided was perfect and we were more than happy that, 1) Vaughan understood our requirements exactly. 2) the Survey was excellent value and 3) It was carried out quickly and efficiently. We would have no hesitation in recommending Trigon Survey & Investigation

Graham Jones

Contact Today