The topo-geodetic base plan is a map of the surveyed area, which gives the site plan view of the land along with the location of utility networks. The topo-geodetic base plan or geodetic base indicates the position of buildings and structures, trees, shrubs, roads and footpaths, poles, water and sewer pipes, electricity and communication lines, underground heating contours, heating and gas pipelines and other above-ground and underground installations. This work will be used by the designer as a basis for their own design. They obtains the necessary basic information, takes into account the design brief and the legislation, and then draws up a plan of the site, or in other words, designs what they think will be built in the future, and renames it the site plan.

Topo-geodetic research process using the example of Geodeesia24:

• Preparation of measurement work in the office: preparation for fieldwork, reviewing existing documentation.
• Fieldwork: this phase involves surveying the situation on the ground, investigating the wells and other utilities, if necessary. The survey will be carried out using different types of equipment: levelling instrument, electron-tachymeter, GNSS RTK (GPS device), laser scanner.
• Plotting and coordination: after processing the survey data collected in the field, a preliminary geo-plot is produced showing all of the objects in the survey area – roads, buildings, structures, trees, road signs, etc. During the coordination process, in liaison with the utility companies, the underground utilities are marked on the geodetic base plan on the basis of the as-built drawings.
• Compilation of a digital file: once the drawing has been completed and the approvals of the owners of the utility networks have been obtained, a digital file containing all the documents and results of the work is compiled. Forwarding of the work product to the client.
• Registration of the work in the local government: most local governments have developed specific geo-repositories where the work is registered and becomes available to all users of the geo-repository.

We use the coordinate system in force in the Republic of Estonia for the works, and all surveys comply with Regulation No 34 adopted by the Ministry of Economic Affairs and Infrastructure on 14 March 2016.

The validity period of a topo-geodetic survey varies from local government to local government, usually between one (1) and two (2) years. However, the approvals of some network operators are valid for no more than one (1) year. It is also necessary to order a new geodetic survey if construction work has been carried out in the survey area, which has led to a situation where the situation shown on the drawing does not correspond to reality.

If you would like to request this service, please submit your request using the enquiry form, by writing to info@geodeesia24.ee or by calling +372 5621 7960.