Surveying Services

Legal (Cadastral) Surveying

Cadastral Survey services provide an accurate and detailed determination of boundaries of parcels of land to simplify the process of conveyancing for the legal profession and members of the public.

Services Provided

  • Surveyor ‘s Real Property Reports (SRPR): As built surveys and location of existing structures in relation to the parcel boundaries to ensure conformity with existing municipal by-laws. Also serves to inform landowners of any issues that may impact upon their right to enjoyment of their property.
  • Boundary Surveys: Retracement of limits of existing boundaries or create new limits for residential, commercial and industrial projects.
  • Topographical Surveys: Detailed three-dimensional capture of ground data including natural and man-made features to aid in the land development process.
  • Tenancy Surveys: To obtain accurate determination of leaseable space and common areas for commercial tenancy
  • Layout and Construction Surveys: Surveys to provide sitings for building and other structures including horizontal and vertical control and profiles of existing site conditions.

Precision Survey Monitoring

Precision Survey Monitoring by way of Precision Total Stations provides valuable insight into the effects of construction on adjacent structures. Tham Surveying Ltd. offers precision survey monitoring services to the engineering and construction communities.

We provide the following survey monitoring services:

  • Vibration effect and analysis
  • Structure stability, recording and analysis
  • Settlement models for new and existing structures

Our high performance instrumentation:

    • Sokkia SDL1X First Order Digital Level
    • Precision Total Station – Leica TCA 1800

Our Precision Survey Monitoring portfolio includes projects such as the Hiwghway 407 Extension and Toronto-York-Spadina subway Expansion carried out for clients such as Toronto Transit Commission (TTC) and FCC Canada Ltd/OHL.

Engineering & Geodetic Services

Provides a common system of reference to all land related projects so as to support the design, construction and maintenance of various size projects

Services Provided

  • Horizontal and Vertical Control: Provide services to design and implement horizontal and vertical control networks
  • Network Design: Design of optimum network configuration to ensure required accuracies
  • Construction Layout: To provide for project construction i.e. residential, commercial, municipal including road layouts.

Construction Layout

These services include a variety of engineering and construction services with deliverable available in both hard copy and digital formats.

Services Provided:

  • Highway construction
  • Control surveys
  • Structural layout and certification
  • Quantity calculation
  • Curb layout
  • Grading
  • Commercial and Subdivision
  • Quantity calculation
  • Grading
  • Curb layout
  • Road grades
  • As – Build certification
  • Engineering Related Services
  • Stockpile surveys and Quantity calculations
  • Topographical surveys
  • Cross sections
  • Other Services
  • Parking lot construction
  • Railway construction
  • Building construction
  • Excavation Quantity Control Surveys

Subdivision Survey Services

This service provides the developer with the knowledge of existing municipal issues, extent of the subject lands, and other issues to aid in the timely subdidision and marketing of these units.

Services Provided

  • Boundary Survey: Thorough research of the subject property both at the Registry Office and other available sources for pertinent information. Defining the existence and location of all easements, rights of way or encroachments. Provision of monumentation to confirm with existing standards and prepare first application reference plan consistent with the Land Titles Act or certification under the Certification of Titles Act as necessary.
  • Topographic Survey: provide a detail three – dimensional representation of the subject property to aid and in the efficient development of the property.
  • Draft Plan of Subdivision/Condominium: Creating a draft plan of subdivision consistent with client’s objectives and regulatory guidelines, or working in conjunctions with client’s developer.
  • Subdivision Compilation: Converting the draft plan into an accurate representation of all streets, lots, and blocks with regard to the Planning Act and municipal zoning requirements such as set back, area, frontage, and building envelope.
  • Subdivision Monumentation and Registration: Full mounumentation of all new parcels and expediting the process of Planning Act approval and registration of the plan of subdiviosn.

Consulting Services

We offer wide range of consulting services to clients in the land development industry.

Services Provided

  • Consulting regarding requirement for project development from initial to final stage.
  • Regarding application for part-lot control exemption
  • Regarding application for minor variance
  • Regarding Zoning constraints and representation at all municipal hearings pertaining to the development process.

Scanning & Monitoring Services

We deliver cutting-edge express LiDAR geomatics services by means of Terrestrial & Mobile systems. Our LiDAR service portfolio consist of Topography, Area Survey, Road, Slopes, Bridges, Utilities and Pavement.

We specialize in real-time monitoring, including Deformation Measurements for Tunnels, Bridges, Buildings, Dams, Railroads and Mine Sites. We also offer Scan to CAD, As Built 3D Models, Road Surveys, and  BIM(Building Information Modelling)








LiDAR technology captures massive amounts of 3D data in a fraction of time compared to traditional methods resulting in quick turnaround.


Reduced man-hours and time required on the field compared to traditional methods and provides unmatched cost efficiencies.

About Us


Tham Surveying Limited offers a full complete range of geomatics services in the land development field. A number of professional and technical personnel on staff guarantee the highest level of professional and service expertise in the field.

We offer professional consultation to the public and private sectors, to develop and execute a variety of land resource projects.


Surveying. Scanning & Monitoring. We offer professional consultation to the public and private sectors, to develop and execute a variety of land resource projects. We recognize the duty of care to our clients with regard to understanding their requirements and providing efficient and cost effective solutions.


We recognize and relish the duty of care owed to our clients with regard to understanding their requirement and providing efficient and cost effective solutions.



Tham Shanmugarajah

President & CEO

Tham Shanmugarajah O.L.S., P.Eng., O.L.I.P., is the President and C.E.O. of Tham Surveying Limited with responsibility for preparing Surveyor’s Real property reports, Housing and Industrial building layouts, Managing Highway Projects to produce Reference & Expropriation Plans and Crown Land Plans, Topographical & Engineering Surveys, calculate volumes, areas, prepare plans of profiles and sections for engineering design purpose and establishing vertical and horizontal control networks. He also serves as Project Manager for various Ministry of Transportation Projects across Ontario.

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Pierre Blouin

Operations Manager

Pierre is the Operations Manager at Tham Surveying Limited with responsibility for Housing, Industrial, Condominium layout, Legal surveys for mortgages and buildings locations Topographic surveys, Vertical and horizontal control establishment, Boundary Survey.

Prior to joining Tham Surveying Limited, Pierre worked as Senior Project Manager, Survey Technologist and Supply & Logistics Manager at Rady-Pentek Edward Surveying Limited. Notable is his 15 years of career profile there.

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Contact Info

    • 8888 Keele Street, Unit 7
      Vaughan, Ontario, Canada L4K 2N2
    • 416 749 5995
    • 1 855 761 6523 (Toll Free)
    • 905 761 6523

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Terms and Conditions

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These terms and conditions outline the rules and regulations for the use of Tham Surveying Limited’s Website, located at accessing this website we assume you accept these terms and conditions. Do not continue to use if you do not agree to take all of the terms and conditions stated on this page.The following terminology applies to these Terms and Conditions, Privacy Statement and Disclaimer Notice and all Agreements: “Client”, “You” and “Your” refers to you, the person log on this website and compliant to the Company’s terms and conditions. “The Company”, “Ourselves”, “We”, “Our” and “Us”, refers to our Company. “Party”, “Parties”, or “Us”, refers to both the Client and ourselves. All terms refer to the offer, acceptance and consideration of payment necessary to undertake the process of our assistance to the Client in the most appropriate manner for the express purpose of meeting the Client’s needs in respect of provision of the Company’s stated services, in accordance with and subject to, prevailing law of Netherlands. Any use of the above terminology or other words in the singular, plural, capitalization and/or he/she or they, are taken as interchangeable and therefore as referring to same.


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This Agreement shall begin on the date hereof.

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Tham Surveying Limited reserves the right to monitor all Comments and to remove any Comments which can be considered inappropriate, offensive or causes breach of these Terms and Conditions.

You warrant and represent that:

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You hereby grant Tham Surveying Limited a non-exclusive license to use, reproduce, edit and authorize others to use, reproduce and edit any of your Comments in any and all forms, formats or media.

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The following organizations may link to our Website without prior written approval:

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These organizations may link to our home page, to publications or to other Website information so long as the link: (a) is not in any way deceptive; (b) does not falsely imply sponsorship, endorsement or approval of the linking party and its products and/or services; and (c) fits within the context of the linking party’s site.

We may consider and approve other link requests from the following types of organizations:

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We will approve link requests from these organizations if we decide that: (a) the link would not make us look unfavorably to ourselves or to our accredited businesses; (b) the organization does not have any negative records with us; (c) the benefit to us from the visibility of the hyperlink compensates the absence of Tham Surveying Limited; and (d) the link is in the context of general resource information.

These organizations may link to our home page so long as the link: (a) is not in any way deceptive; (b) does not falsely imply sponsorship, endorsement or approval of the linking party and its products or services; and (c) fits within the context of the linking party’s site.

If you are one of the organizations listed in paragraph 2 above and are interested in linking to our website, you must inform us by sending an e-mail to Tham Surveying Limited. Please include your name, your organization name, contact information as well as the URL of your site, a list of any URLs from which you intend to link to our Website, and a list of the URLs on our site to which you would like to link. Wait 2-3 weeks for a response.

Approved organizations may hyperlink to our Website as follows:

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  • By use of any other description of our Website being linked to that makes sense within the context and format of content on the linking party’s site.

No use of Tham Surveying Limited’s logo or other artwork will be allowed for linking absent a trademark license agreement.


Without prior approval and written permission, you may not create frames around our Webpages that alter in any way the visual presentation or appearance of our Website.

Content Liability

We shall not be hold responsible for any content that appears on your Website. You agree to protect and defend us against all claims that is rising on your Website. No link(s) should appear on any Website that may be interpreted as libelous, obscene or criminal, or which infringes, otherwise violates, or advocates the infringement or other violation of, any third party rights.

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We reserve the right to request that you remove all links or any particular link to our Website. You approve to immediately remove all links to our Website upon request. We also reserve the right to amen these terms and conditions and it’s linking policy at any time. By continuously linking to our Website, you agree to be bound to and follow these linking terms and conditions.

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If you find any link on our Website that is offensive for any reason, you are free to contact and inform us any moment. We will consider requests to remove links but we are not obligated to or so or to respond to you directly.

We do not ensure that the information on this website is correct, we do not warrant its completeness or accuracy; nor do we promise to ensure that the website remains available or that the material on the website is kept up to date.


To the maximum extent permitted by applicable law, we exclude all representations, warranties and conditions relating to our website and the use of this website. Nothing in this disclaimer will:

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The limitations and prohibitions of liability set in this Section and elsewhere in this disclaimer: (a) are subject to the preceding paragraph; and (b) govern all liabilities arising under the disclaimer, including liabilities arising in contract, in tort and for breach of statutory duty.

As long as the website and the information and services on the website are provided free of charge, we will not be liable for any loss or damage of any nature.