At DHM our key focus is the property development industry and our clients range from corporate developers and public bodies to smaller property developers and private individuals interested and affected by development.

We have an in-depth understanding of the dense legislative framework that governs inter alia property development and the protection of the environment.


Since we regard ourselves a strategic partner for each client, we actively invest in, and build, enduring relationships with those who consult us. Our mission is to provide technically correct and strategically sound legal advice that makes business sense, by employing our specialised legal skills and hard work, with our commitment to integrity and excellence.

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Johan started his career in 1971 in the Department of Justice and went on to become an additional magistrate. He joined local government in 1975 and inter alia served as the Deputy Town Clerk of Somerset West. Johan joined a Somerset West firm of attorneys during 1987. He is the co-founder of Du Plessis & Hofmeyr Inc. (established 1992) and of Du Plessis Hofmeyr Malan Inc. (established 2012).

Johan served as a municipal town councillor and as chairperson of the provincial appeal committee responsible for land use appeals. He has the right of appearance in the High Court and provides legal advice to numerous municipal councils, town planning and environmental firms and developers, especially as regards town planning and property development matters.

He actively and successfully participated in large scale property development for many years and gained invaluable experience and first-hand knowledge of the development industry and its challenges.

Johan has extensive knowledge of the application and enforcement of South African land use planning, environmental and administrative law and has assisted the provincial and municipal spheres of government with the drafting of legislation and government policies.

Track record highlights

  • Drafting of Western Cape Planning and Development Act 7 of 1999 and draft  regulations in terms thereof;
  • Former Chairman of the provincial appeal committee hearing appeals in terms of the Land Use Planning Ordinance, 15 of 1985;
  • Assisted with the drafting of the integrated zoning schemes (“IZS”) of the City of Cape Town;
  • Assisted with the review and drafting of model provincial zoning scheme regulations;
  • Former Mayor of Somerset West;
  • Drafting by-laws for local government;

Areas of particular interest and expertise include:

  • Land use planning applications
  • Environmental authorisation applications
  • Heritage resource applications
  • Property development
  • Administrative appeals and judicial reviews
  • Compliance with environmental and land use legislation
  • Restitution of land rights and land claims



Nikki obtained her LLB Degree while living in the United Kingdom and returned to South Africa to complete her admission examinations and contract of articles at Johan du Plessis Attorneys in Somerset West.

She is the co-founder of Du Plessis Hofmeyr Malan Inc (established 2012) and enjoys working in the fields of Conveyancing, Estate Planning and Administration, General Property Law, Sectional Titles, Home Owners Associations and other private law matters.

Areas of particular interest and/or expertise include:

  • Conveyancing
  • Property matters
  • Land use planning matters
  • Sectional Titles and Home Owners Association disputes
  • Estate Planning and Administration
  • Arbitration



An internship at an international mining company influenced Mari’s decision to enroll for the LLB postgraduate degree and kickstarted her legal career.

Mari completed her articles at De Villiers-Mohr Attorneys where she gained experience across most legal areas of practice but developed a keen initial interest in employee relations and labour law. She was admitted as an Attorney of the High Court in 2012.

She subsequently joined a professional services firm operational in the built environment as inhouse legal advisor and certified HR professional with the SABPP and worked in the construction industry for 6 years. During her tenure in the construction industry she provided contractual and legal advice to project teams working on projects and property developments in both the Public and Private sectors and became proficient with industry standards, policies and standard agreements like the JBCC, GCC, NEC3, PROCSA and FIDIC.

Mari co-founded a boutique consulting firm in 2016 specialising in construction cost management, contract management, labour compliance and strategic human resources management. Mari joined the DHM Law team in 2020.

Areas of particular interest and/or expertise include:

  • Labour Law & Corporate Compliance
  • Employee relations
  • Labour disputes
  • Property Development
  • Construction Law
  • Contract Management
  • Settlement negotiations
  • Mediation proceedings
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