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Allprop QS is a dynamic Quantity Surveying (QS) firm that offers specialised QS solutions for all your construction needs.

Based in Techno Park, Stellenbosch, we are a boutique firm offering a personalised, quality service with the clients’ best interests in mind.

With over 45 years’ experience in the construction industry and a client base that spans across Southern Africa, Allprop QS takes pride in the value-adding service and professional advice they provide to their clientele.

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We are experts in the industry, which is why our work repertoire consists of large-scale projects. For us, no job is too big because while our line of work requires acute attention to detail, we believe in seeing the larger picture.

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Deon Allen

Professional Quantity Surveyor

  • 1975 - 1979 University of port Elizabeth | Degree: B.Build & B.Sc (QS) Hons, PrQS

  • 1983 - 2004: Senekal Allen & Partners Quantity Surveyors

  • 2007 - Current: AllpropQS and property development

Deon was one of the co-founders of Senekal Allen & Partners where he was in partnership for 22 years in the private professional Quantity Surveyors firm. In 2004 he followed his passion by enhancing his existing property portfolio. In 2007 he established AllpropQS focussing on delivering outstanding QS services tailored to clients' needs and he is still actively involved in property management and development.

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Deon John Allen

Professional Quantity Surveyor


  • Qualified 2014: university of Cape Town

  • Degree: BSc. Construction Studies & BSc. (Hons) QS

  • 2015: MLC Quantity Surveyors

  • 2016-Current: AllpropQS

Deon John gained invaluable experience in warehouse construction, retail, residential, commercial and alterations work.

He has developed skills in QS specific measurements and tender documentation software programs and is well trained for the execution of feasibility studies, cost analysis, cost planning and cost control.


We add value by delivering outstanding end-to-end service, and building trust-based relationships with our clients, partnering with them on all of their ventures.

Our top priority is becoming a trusted and indispensable asset to our clients. This is evident in each project that our team of experts take on.

For us, no job is too big.

By focusing on the bigger picture and following trusted processes we are able to pay acute attention to detail and add value, no matter the project size.

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