What do we do?

Cornerstone CBS/Merged represents a fresh fusion of companies, constructed upon the solid foundation of over 26 years of professional expertise in quantity surveying, management, and procurement. Proudly recognized as Level 2 & 4 BBBEE entities, we offer an expansive suite of services including Quantity Surveying, Principal Agent, Project Management, Turnkey / Consortiums or associated Architectural Services through our professional partners. This blend of seasoned wisdom and renewed vision drives our commitment to continually deliver excellence in our service provisions.

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At Cornerstone CBS/Merged, we take profound pride in the quality and calibre of our work. Our commitment to excellence is not merely an aspiration; it permeates every facet of our organisation. We persistently push ourselves to enhance our standards, consistently raising the bar to embody the very best in our industry. Our passion for surpassing expectations drives us, setting us apart in the arena of quality, precision, and exceptional performance.

At Cornerstone CBS/Merged, we cultivate a corporate culture deeply rooted in honesty, nobility, and forthrightness. We aspire to embody these virtues in every aspect of our business operations. Our commitment to these principles guides our interactions, fostering an environment that enriches the client experience with every interaction.

At Cornerstone CBS/Merged, we uphold a culture deeply rooted in honesty and nobility, principles we firmly believe are integral to our identity. It is our earnest endeavor to infuse these virtues into every aspect of our workplace, fostering an environment that enhances our clients’ experiences. Our commitment to these values governs our business interactions, ensuring a professional relationship built on trust, transparency, and the highest ethical standards.

We understand that trust is not granted but earned. As such, our mission at Cornerstone CBS/Merged is to garner the trust of our clients through our impeccable service and unwavering reliability. We are dedicated to showing our clients they can have complete confidence in us, secure in the knowledge that their projects are in the hands of skilled and competent professionals.

The energy that drives us, our passion, infuses every project we undertake. We approach every building venture with zeal and enthusiasm, ensuring not just project completion, but its success. At Cornerstone CBS/Merged, we share the aspirations of our clients, making their goals our goals, their dreams our dreams. This mutual dedication paves the way to success in every venture we undertake.


Our lead member at Cornerstone CBS/Merged has been at the vanguard of industry innovation, remaining up-to-date with the latest products and methodologies. We offer a comprehensive suite of professional services tailored to cater to our clients’ multifaceted needs. Ranging from comprehensive quantity surveying and project management to vigilant job oversight, we provide an encompassing range of services at some of the most competitive rates in the market. If you wish to discuss a potential project or would like a detailed proposal of our services, please do not hesitate to reach out to us via email. We eagerly look forward to assisting you in bringing your vision to fruition.

Quantity Surveying & Cost Consulting

Principle Agents Management

Architectural Services

Turnkey Solutions

Experience as Consulting
Quantity Surveyors


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Motor and Truck Developments

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Hospitals and

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and Warehouse

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Featured Project

Motus Multi-Franchise Menlyn Dealership


The Cornerstone team was recently presented with a formidable challenge: adhering to a tight tenancy deadline under highly adverse market conditions. This task was rendered even more daunting due to the looming threat of expiring leases, which could result in multimillion-dollar costs for the client, nationwide strikes, restrictions due to the Covid-19 pandemic, and heavy rainfall. These factors collectively contributed to a scenario that appeared almost insurmountable.

Nevertheless, we leaned into our deep faith in our Father, Jesus Christ, who led our team with  wisdom and favour. We firmly believe that it was this divine intervention that endowed us with the ability to foster a harmonious and concerted effort among all stakeholders – the Client, Tenants, Consultants, and Construction Teams.

This united front enabled us to surmount the seemingly impossible task, achieving our goals in spite of the odds. We at Cornerstone CBS/Merged attribute this accomplishment to the grace of God, to whom we dedicate all glory for the successful completion of this challenging project. We remain committed to serving our clients with the same dedication, resilience, and faith in all our future endeavours.

Our Story

Since making our debut in the industry since 1998 under the leadership of our principal member, Chris Venter, Cornerstone CBS/Merged has consistently been recognized for its reliability and dependability as consultants. We have been unwavering in our dedication to providing clients with a broad spectrum of services that cater to their diverse needs. Regardless of the scope of your vision, our seasoned professionals dedicate themselves to transforming your dreams into reality. Reach out to us today to arrange a consultation and learn more about how we can serve your project needs.

Why work with Cornerstone CBS Merged

Partner with Cornerstone CBS/Merged?

  • We bring to bear our collective experience on every project, drawing from a wellspring of knowledge and expertise.
  • With over 26 years of industry experience, we have honed our craft and can confidently navigate the challenges and opportunities that come our way.
  • Our commitment to honesty and reliability has earned us a reputation as a trusted partner in the industry.
  • We do not simply strive for quality; we are committed to it. Our unwavering dedication to excellence underscores every service we provide.
  • Our firm belief in constant growth and improvement keeps us at the forefront of industry developments, ensuring our services are always in line with the latest best practices.

The Directors

We are thrilled to announce significant developments within the Cornerstone family, aimed at fortifying our Turnkey solution and advancing our overarching mission. These transformative changes underscore our unwavering commitment to excellence and innovation.

We are pleased to welcome two distinguished executives to our Business Development team, Mr. Zolani “Bond” Tunyiswa and Mr. Lwandile “Wandi” Hasheni, who have seamlessly integrated their expertise into the Cornerstone framework to bolster our Merge division.

Bond, in his role as a Business Development Executive, brings to our team a wealth of experience in facilities maintenance management and project oversight, cultivated through strategic collaborations within the property sector. His strategic acumen, coupled with a deep understanding of delivering superior products and services, positions him as a catalyst for our business growth. Bond’s proficiency in construction and interior design further enhances our ability to execute projects with precision and efficacy.

Meanwhile, Wandi steps into his role as a Chief Operations Officer with a seasoned leadership background spanning over three decades. His dynamic skill set, honed through diverse managerial roles, and his academic prowess, coupled with extensive experience in HR strategic development, employee relations, and sales management, equip him to navigate complex challenges and drive organizational success. We are confident that Wandi’s multifaceted strengths will play a pivotal role in fostering strategic partnerships and championing strategic management, HR, and employment relations and strategic operations initiatives within our team.

At Cornerstone, we remain steadfast in our commitment to excellence, integrity, and collaboration. With Bond and Wandi on board as two experienced Executives, we are poised to embark on an exciting journey of growth and innovation, fuelled by our shared passion for transformative change.

Together, let us continue to build upon our foundation of excellence and chart new horizons for Cornerstone and beyond.

Wandi L. Hasheni.

Chris Venter, Professional Quantity Surveyor, South African

Chris Venter

Zolani Tunyiswa

Contact Us

Send us a Query Today

Quantity Surveying Cost Consulting

At Cornerstone CBS/Merged, we offer a highly individualised approach to Quantity Surveying and Cost Consulting, grounding our services on the distinct needs and requirements of each client. If you seek professional construction cost planning services, designed with a keen understanding of your specific needs, look no further.

lease reach out to us to arrange a consultation where we can discuss how best we can serve your objectives while optimising your project’s financial efficiency. We stand ready to bring our expertise to your aid, guiding your project to successful completion within budget.

Principle Agents Management

At Cornerstone CBS/Merged, we understand the necessity of effective oversight and coordination in the successful completion of any construction project. As such, we offer top-tier Principal Agent Management services. Our team of experts excels at handling all phases of project administration, ensuring that everything from procurement to execution runs smoothly and efficiently. With Cornerstone CBS/Merged at the helm, you can rest assured that your project is guided by knowledgeable, experienced hands, dedicated to meeting project objectives while adhering to the highest industry standards. Please contact us for more information or to schedule a consultation regarding our Principal Agent Management services.

Architectural Services

Cornerstone CBS/Merged offers a wide spectrum of associated Architectural Services through our professional association, marrying aesthetic vision with practical considerations to create designs that embody our clients’ ambitions and values. Whether you’re seeking assistance with conceptualization, design development, or architectural drawings, our team of expert associated architects can provide the innovative solutions you need.

Our architects collaborate closely with each client, translating their ideas into architectural realities that blend form, function, and sustainability. By maintaining a meticulous eye on detail and ensuring adherence to budget and timeline constraints, we aim to bring each client’s unique vision to life in the most efficient and cost-effective manner possible. If you’re considering architectural services and would like a consultation, please do not hesitate to contact us.


Turnkey Solutions

At Cornerstone, we are dedicated to delivering Turnkey / Consortium solutions that epitomize excellence and innovation. Whether we’re compiling bids for the public sector or crafting tailored proposals for private clients, our commitment to professionalism, integrity, and trust remains unwavering.

With a diverse skill set and strategic partnerships spanning across all disciplines within the construction and civil works sectors, we are poised to meet the unique needs of clients across South Africa and the African continent. Our passion for transformative change drives us to continuously exceed expectations, ensuring that every project we undertake reflects our unwavering commitment
to quality and client satisfaction.

At Cornerstone, we believe in the power of collaboration and transparency, fostering long-term relationships built on trust and mutual respect. As we embark on this journey, we invite you to join us in shaping the future of construction and civil works, one Turnkey solution at a time.