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Topographic surveying

Geobase (topographic base for design)

A topographic base showing relief, buildings, above-ground and underground utilities, ready for architects and engineers to design on directly.

Licensed service · EL-845/2026
Geobase (topographic base for design)

A geobase is the starting point of design: architects, structural engineers and utility designers build all their solutions on this topographic base. Unlike an ordinary topographic plan, a geobase is prepared for a specific design purpose and brings together all above-ground and underground utilities on the site, their technical characteristics and any constraints that may affect the project.

The work includes a topographic survey of the design area with a sufficient buffer around it. Relief, buildings, roads, fences, greenery and power poles are recorded along with water, sewer, gas, heating, power and telecom networks. Underground lines are traced with utility locators, and pipe diameter, material and depth are measured in manholes.

A geobase is usually produced at 1:500, at 1:200 for small plots and at 1:1000 for large sites. Where required, documents are prepared for checking and agreeing the utilities with network owners. In Baku and the regions of Azerbaijan all measurements are tied to the national geodetic network.

The result is delivered as a layered DWG file and a PDF, so the designer can use it in their own software without any extra processing.

When you need it

  • Design of residential and public buildings
  • Design and reconstruction of utility networks
  • Roads, squares and landscaping projects
  • Master plans for industrial and warehouse facilities
  • Preparing design documents for a building permit

What's included

  • Topographic survey of the site and buffer zone
  • Locating and surveying underground utilities
  • Measuring pipe diameter, material and depth in manholes
  • Relief shown with contours and spot heights
  • Marking existing constraints and protection zones
  • Layered DWG and PDF drawings

How we work

  1. Agreeing scale, limits and requirements with the designer
  2. Establishing survey control
  3. Topographic survey and utility detection
  4. Office processing and geobase drafting
  5. Checking, coordination where needed and delivery

Deliverables

  • Geobase (layered DWG)
  • Print-ready PDF version
  • List of underground utilities and their characteristics
  • Coordinate list of control points
FAQ

Frequently asked questions

How is a geobase different from an ordinary topographic plan?

A geobase is prepared for a specific project and gives fuller information on underground utilities, their parameters and constraints. An ordinary topographic plan may serve more general purposes.

At what scale is a geobase produced?

Most often at 1:500. For small plots 1:200 is used and for large sites 1:1000. The scale is chosen according to the designer requirements.

Can an old topographic plan be used as a geobase?

If the site has changed, an old plan is not reliable. It is usually checked and updated on site, or a new survey is carried out.

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