NZ owned and operated

Blenheim Property Compliance

Grant has completed building inspections in Marlborough and surrounding areas including Blenheim, Picton and Kaikoura. He specialises in healthy homes inspections, meth testing, mould testing, lead testing and rental inspections.


Grant Thornley

Grant Thornley Builders Ltd
trading as Betta Property Compliance


  • Industry Qualified Inspector
  • Licensed Building Practitioner
  • Adv Trade Cert
  • Cleaning systems trained methamphetamine Sampler

0800 422 386

Email Grant

About Grant

For the past 30 years, Grant has been building landmarks all over Marlborough. While most of his work in recent years has been as a site manager running large commercial jobs, there have been some very interesting, high-end residential builds as well. Grant has a keen eye for detail and a sharp mind for problem-solving. As a Licensed Building Practitioner and with his extensive knowledge and understanding of building practices and construction methods, Grant is well-qualified to undertake all your compliance inspections.

As a proud local, Grant enjoys all the region has to offer. With the Marlborough Sounds a stone’s throw away, Grant can often be found boating and fishing. A dedicated family man (Dad of 4 and Grandad of 2) and a keen member of the Marlborough Vintage Musseleers Golden Oldie’s Rugby Team. Grant also has a love of travel and exploring the world, so it’s just as well his wife has a Travel Agency!

Property Compliance Services

Grant provides a full range of Property Compliance services. This includes Annual Playground safety inspections, Methamphetamine Testing, Rental Property Inspections, Lead Testing and Mould Testing Blenheim.

Reports are written in plain English and have our client’s best interests at heart. We are here to provide a one-stop solution for all your property consultancy needs.

Grant comes from a strong property background, so understands what is required and comes to the property compliance industry from a practical approach. We understand obligations and want to provide the best cost-effective solution for all of our clients.

Regions covered

Blenheim, Picton, Kaikoura