Local valuers you can trust.

Nigel is the Managing Director and coupled with an experienced team of Roger, Jim and Tim are the driving strength of Inval.

They know their local markets intimately and each has decades of experience running their own businesses as well as working for large corporations.

Managing Director Nigel Gibbins and principal partners Roger Eberhard, Jim Bell and Tim Wilkin collectively have more than 100 years’ experience in property valuations.


Our Team

Inval | Nigel Gibbins

Nigel Gibbins, AAPI – Managing Director

With hands-on experience as a part-owner of a 3,000-hectare broad-acre farm in the Mallee, Nigel has broad and practical knowledge of agribusiness and the rural economy. After completing his studies at UniSA, his highly successful career in valuation has seen him operate in diverse territories from Adelaide, the Barossa and Clare Valleys to Sunraysia, Deniliquin, Wagga Wagga and Cairns.

A property valuer with over 20 years’ experience and an Associate Member of the Australian Property Institute, Nigel’s valuation assignments included the following property classes:

  • Agricultural (vineyards & wineries, table grapes, citrus, market gardens, pastoral stations and dry land farming operations)
  • Country hotels and motels
  • Schools
  • Prestige ocean-front residential properties
  • Murray River-fronting properties
  • Rental determinations
  • Commercial and industrial
  • Residential
  • Residential englobo sites
  • Plant and equipment

While Nigel has operated across the entire state of South Australia, his focus is on servicing the needs of the Barossa, Riverland, Mid North and Northern Suburbs of Adelaide.

Inval | Jim Bell

Jim Bell, AAPI

Jim Bell is an experienced property valuer with over 30 years’ property experience in the states Mid to Far North regions. Jim is based in Port Pirie and also grew up in the area. Jim’s area of coverage is the Iron Triangle region and the far north of the state and includes Port Pirie, Port Augusta, Whyalla, Roxby Downs, Coober Pedy, and mid-north areas including Peterborough, Jamestown, Quorn, Laura, Melrose, Orroroo, Crystal Brook and Port Broughton. He also does work in the far north of the state when required, including Marree, Oodnadatta, William Creek, Blinman etc.

Jim’s strengths include strong local knowledge, having lived and worked in this area for many years; an ability to provide a fast service in his area due to being well located to provide timely services; consistency through providing ongoing regular work to the areas he covers; the flexibility to provide services to areas at the request of customers; and the ability to provide a service at a cost effective rate.

Jim has a strong residential and rural residential valuation back-ground, along with extensive knowledge in providing agri and commercial valuation in the northern regions.
During his career, Jim’s valuations assignments have included the following property classes:

  • Residential
  • Rural Living
  • Agricultural (grazing, and dry land farming operations)
  • Ocean Front Residential Properties
  • Rental Determinations
  • Commercial & Industrial
  • Lot entitlements

At Inval Property Valuations Jims focus is on servicing the Northern Regions, servicing all property types but with a focus on residential mortgage valuations.

Inval | Roger Eberhart

Roger Eberhard, AAPI

Son of a Mid North farmer, Roger completed his Degree in Agricultural Science at the University of Adelaide before beginning his career at the Commonwealth Development Bank in Naracoorte. A well-known figure in the South-East, he worked for local company
Neil Ottoson Real Estate and gained his Diploma in Valuations at the Royal Melbourne Institute of Technology before starting his own practice, Eberhard Valuations in 1997. Roger later sold the business to local stock agency Thomas DeGaris & Clarkson, working for them until 2017.

An Associate Member of the Australian Property Institute with over 40 years’ experience, Roger’s valuation assignments have included the following property classes:

  • Agricultural (vineyards and wineries, grazing, irrigation, dairy farms and dry land farming operations)
  • Motels
  • Caravan parks
  • Prestige ocean-front residential properties
  • Rental determinations
  • Commercial and industrial
  • Residential
  • Residential subdivisions

Located in Naracoorte and considered a local authority on property valuation, not surprisingly, Roger’s focus in on servicing the needs and all property types in the Limestone Coast region.

Inval | Cassandra Fuller

Cassandra Fuller AAPI

Cassie Fuller has 17 years of experience as a Valuer and has been an Associate member of the Australian property institute for 15 of those years. Cassie has robust regional experience in the Valuation field including undertaking valuations for private sector clients of commercial, industrial, rural and residential property. In addition to this she undertaken valuations for rating and taxing purposes for Land Services SA in accordance with the Valuation of Land Act 1971.

During her career Cassie’s valuations assignments have included the following property classes:

  • Agricultural (dry land farming operations and pastoral property)
  • Rural Residential
  • Residential Subdivisions
  • Industrial
  • Commercial Office
  • Retail
  • Residential Property

At Inval Property Valuations Cassie’s focus is on quality assurance, sales analysis, and market research; providing the organisation with up to date economic and sales information and ensuring reports to clients are of the highest industry standard.

Inval | Tim Wilkin

Tim Wilkin, AAPI

Tim has extensive valuation, retail property development and leasing experience with organisations including Raine & Horne, Colliers International, Woolworths and Wesfarmers. Tim also held interests in his own wine business and a Hotel, keeping him connected to real time industry issues faced by today’s business owners within these sectors.

An Associate Member of the Australian Property Institute, Tim has over 20 years’ experience across South Australia, Northern Territory and Queensland. During that time, his valuation assignments included the following property classes:

  • Agricultural (horticultural vineyards and wineries, mango and dry land farming)
  • Rural residential
  • Residential subdivisions
  • Industrial developments
  • Rental determinations
  • Commercial office
  • Retail developments
  • Residential property

While Tim’s experience is extensive and his involvement in the business is a strength.