Professional projects undertaken by Loise Makena, Geomatic Engineer

Provision of consultancy services for preparation of Kakamega County spatial plan – control survey

• Define the project area (county boundaries) and the purpose of the control survey.
• Conduct research on existing control monuments, benchmarks, and geodetic networks within the county.
• Perform field reconnaissance to assess potential locations for establishing new control points
• Establish primary control points using high-precision GNSS receivers ensuring that they meet required accuracy standards
• Constructing permanent monuments or markers at the control point locations.
• Process the field observations and measurements collected during the control survey.
• Perform least-squares adjustments or other appropriate methods to distribute errors and ensure network consistency.
• Conduct quality control checks to ensure the accuracy and reliability of the control network.
• Prepare detailed survey reports, including methodology, equipment used, observations, adjustments, and final coordinates.
• Submit the control survey data and documentation to the relevant authorities for approval

Provision of consultancy services for survey and registration sectional units in LR No. 209/3298- Hill Flats

• Carrying out due diligence (official search)
• Confirming physical boundary (consolidation or subdivision)
• Geo-referencing of the building structures on the parcel and compile the survey
• Preparation of Site and Building Location Plans and ensure all certificates are endorsed
• Preparation of Floor Plans and elevation plans
• Submission of survey records to office of DOS for checking, approval &authentication
• Acquisition of Approved sectional plans in quadruplet are
• Submission to the respective Lands for title registration

Provision of consultancy services for survey and registration sectional units in LR No. 330/232 – Tarrow Apartments in Lavington Hatheru Road

• Carrying out due diligence (official search)
• Confirming physical boundary (consolidation or subdivision)
• Geo-referencing of the building structures on the parcel and compile the survey
• Preparation of Site and Building Location Plans and ensure all certificates are endorsed
• Preparation of Floor Plans and elevation plans
• Submission of survey records to office of DOS for checking, approval &authentication
• Acquisition of Approved sectional plans in quadruplet are
• Submission to the respective Lands for title registration

Planning and subdivision of 1280ha parcel in to 21 portions with curvilinear boundary and title processing for East African Portland located at Athi River Machakos County

• Conduct a site visit to identify project area and determine the appropriate survey methods and equipment required.
• Establish horizontal and vertical control points using GNSS receivers for future reference
• Beaconing of the resultant parcels
• Preparation of computation file and submission to SoK
• Procuring of Sealed RIM from the director of surveys
• Registration of leases
• Registration of title deeds at the relevant registry offices
• Project Handover.

Planning and provision of subdivision scheme for 30-acre fixed boundary parcel in Thika Greens

• Conduct a site visit to identify project area and determine the appropriate survey methods and equipment required.
• Establish horizontal and vertical control points using GNSS receivers for future reference
• Beaconing of the resultant parcels
• Preparation of computation file and submission to SoK
• Procuring of Sealed RIM from the director of surveys
• Registration of leases
• Registration of title deeds at the relevant registry offices
• Project Handover.

Provision of topographical survey and levelling services for construction of dam and drainage channel

• Conduct a site visit to identify project area and determine the appropriate survey methods and equipment required.
• Identifying primary, secondary, and tertiary survey points to establish the overall survey framework.
• Establishing a network of control points using precise surveying techniques such as GPS (Global Positioning System) or total stations.
• Performing a detailed topographic survey of the proposed reservoir area and dam site.
• Conducting cross-section surveys along the proposed dam axis and spillway locations.
• Performing a detailed topographic survey along the proposed drainage channel alignments.
• Creating topographic maps, digital terrain models (DTMs), and cross-section profiles using specialized software.
• Computing cut and fill quantities based on the proposed dam and drainage channel designs and existing terrain data.

Preparation of integrated strategic urban development plan for the municipality of Kilifi – control survey

• Define the project area (county boundaries) and the purpose of the control survey.
• Conduct research on existing control monuments, benchmarks, and geodetic networks within the county.
• Perform field reconnaissance to assess potential locations for establishing new control points
• Establish primary control points using high-precision GNSS receivers ensuring that they meet required accuracy standards
• Constructing permanent monuments or markers at the control point locations.
• Process the field observations and measurements collected during the control survey.
• Perform least-squares adjustments or other appropriate methods to distribute errors and ensure network consistency.
• Conduct quality control checks to ensure the accuracy and reliability of the control network.
• Prepare detailed survey reports, including methodology, equipment used, observations, adjustments, and final coordinates.
• Submit the control survey data and documentation to the relevant authorities for approval

Topographical survey through drone mapping and boundary verification of the proposed subdivision 15-acre parcel in Maraigushu – Naivasha in Nakuru County for Britam

• Installation of a pair of GPS pillars within a radius/grid of between 50-100 meters to the proposed site.
• Establishment of northing and easting of each of the above pillars using GPS equipment in Universal Transverse Mercator (UTM) reference system – tied to National Grid.
• Fixation of intervisible Traverse (secondary control) stations between each pair of GPS pillars.
• Coordinating the secondary controls by traverse survey using total station (or any alternative equipment)
• Heighting of all pillars and stations using Automatic level, referring their elevations to known benchmark / National Grid.
• Computation and adjustment of raw field observations to derive the final x, y, and z of all pillars and stations.
• Detailed Topographical Survey to pick relevant and significant features including spot-heights in a grid of not more than 25m (guided by nature of terrain) in form of x, y, and z to generate required DTM / DEM.
• Plotting of the resulting plan drawing with contour lines using appropriate computer software and scale

Re-establishment of fixed boundaries of 2.5-acre parcel in Maanzoni- Cadastral survey

• Gathering and review all relevant land records
• Site Reconnaissance to identify any existing boundary markers, etc.
• Establishing a control network within the property
• Boundary survey using appropriate surveying equipment.
• Analyze the survey data in conjunction with the historical records and boundary descriptions.
• Boundary Survey Reporting

Beaconing, preparation and submission of survey file and survey plans for the approved masterplan for subdivision of 3000-acre land into 4271 portions for Teita Estate Limited in Mwatate, Taita-Taveta County

• Conduct a site visit to identify project area and determine the appropriate survey methods and equipment required.
• Establish horizontal and vertical control points using GNSS receivers for future reference
• Beaconing of the resultant parcels
• Preparation of computation file and submission to SoK
• Procuring of Sealed RIM from the director of surveys
• Registration of leases
• Registration of title deeds at the relevant registry offices
• Project Handover

Provision of topographical survey services for construction of three acceleration & deceleration lanes along Voi – Mwatate Road

• Conduct a site visit to identify project area and determine the appropriate survey methods and equipment required.
• Establish horizontal and vertical control points using GNSS receivers for future reference
• Performing a detailed topographic survey along the proposed road corridor and surrounding areas.
• Conducting cross-section surveys at regular intervals along the proposed road alignment.
• Locate and map existing underground and overhead utilities, such as water, sewer, gas, and power lines.
• Creating topographic maps, digital terrain models (DTMs), and cross-section profiles using specialized software.
• Compute cut and fill quantities based on the proposed road design and existing terrain data.
• Estimate the volumes of earthwork required for construction

Contact information

For professional inquiries regarding geomatic engineering services, please contact: loise.makena@example.com