## Why file metadata matters more than the file itself A survey plan may look clear on screen, yet it becomes unreliable the moment its coordinate reference, measurement units, or survey date are missing. Proper handover documentation explains what was measured, where, under which datum, and what was excluded from the scope. When engaging a [surveying office in Alexandria](/en/blog/surveying-office-in-alexandria-services), specify the list of deliverables you expect rather than naming only a file format. Without metadata a drawing is like a map without a scale bar. You can read shapes and relative positions, but you cannot verify a single distance or area with confidence. Essential metadata includes the coordinate reference system, linear and angular units, observation date, the responsible surveyor, and the instrument type and serial number used for the work. These details make the file auditable and legally defensible. ## Standard survey deliverables ### PDF plan for review and presentation A PDF is the easiest format to share with a client, project manager, or municipal office because it needs no specialist software. It should show the title block, north arrow, graphic scale, coordinate grid, legend, and a table of key coordinates. A well-prepared PDF also carries the project name, office name, survey date, and revision number in the border. When printing, always check that the printed scale matches the stated scale. ### DWG or DXF file for design The CAD file is the primary working format for architects and civil engineers. Layers should follow a clear naming convention such as TOPO_CONTOUR, BUILDING_OUTLINE, ROAD_EDGE, and UTILITY_MH so that each category of feature can be isolated during design. Verify that the drawing units are set to metres and that the origin point ties to a known coordinate system rather than an arbitrary local origin. ### Point file in CSV or TXT format The raw point file contains point number, easting, northing, elevation, and description. This file is important for anyone who needs to reprocess the data or import it into software such as Civil 3D, Surfer, or QGIS. Confirm that the column delimiter is consistent (comma or tab) and that the file encoding supports Arabic characters if descriptions are in Arabic. ### Written survey report A report summarises the scope of work, methodology, results, and field observations. It should name the coordinate reference system such as ETM or UTM Zone 36N, the instrument types and their stated accuracy, and the source of control points used. A thorough report also states limitations and exclusions, such as areas that could not be surveyed because of obstructions, vegetation, or restricted access. ## How to review deliverables before acceptance ### Verify the coordinate system Open the DWG file and check that coordinates fall within the expected range for your site. A location in Alexandria, for example, should have easting values roughly in the 400,000 to 500,000 metre range under UTM Zone 36N. A large deviation signals an error in the projection or zone setting, which can cascade into every measurement derived from the file. ### Compare known control points If you hold benchmarks or control coordinates from the Egyptian Survey Authority or from previous projects, compare them against the office deliverable. The acceptable difference depends on the purpose of the work: a few centimetres for structural setting out, up to ten centimetres for general topographic mapping. ### Check coverage completeness Review the agreed work boundary and confirm that every required feature appears in the drawing: plot boundaries, buildings, roads, power poles, manholes, large trees, and contour lines. Any gap in coverage should be documented before signing off the final invoice. ### Assess contour quality Contour lines should be smooth and follow the actual terrain. Crossing contours or sudden jumps indicate a triangulation fault or unremoved outlier points. On the relatively flat coastal terrain around Alexandria, contour intervals of half a metre or less may be needed to reveal subtle grade changes that matter for drainage design. ## Tips for contracting a surveying office Define the required outputs in writing before work starts: file formats, coordinate system, contour interval, and work boundary. Request a copy of the calibration certificate for the [surveying instruments](/en/service/surveying-equipment-sales-service) used on site. Ask for the expected timeline for each deliverable phase and whether the report will include field observation notes. The choice of office makes a measurable difference in deliverable quality. Our guide to [choosing the best surveying office in Egypt](/blog/%D8%A3%D9%81%D8%B6%D9%84-%D9%85%D9%83%D8%AA%D8%A8-%D9%85%D8%B3%D8%A7%D8%AD%D8%A9-%D9%81%D9%8A-%D9%85%D8%B5%D8%B1-10-%D9%85%D8%B9%D8%A7%D9%8A%D9%8A%D8%B1-%D9%84%D9%84%D8%A7%D8%AE%D8%AA%D9%8A%D8%A7%D8%B1-%D8%A7%D9%84%D8%B5%D8%AD%D9%8A%D8%AD) covers the key criteria. For a breakdown of typical costs, see our article on [survey pricing in Egypt](/blog/%D8%A3%D8%B3%D8%B9%D8%A7%D8%B1-%D8%A7%D9%84%D8%B1%D9%81%D8%B9-%D8%A7%D9%84%D9%85%D8%B3%D8%A7%D8%AD%D9%8A-%D9%81%D9%8A-%D9%85%D8%B5%D8%B1-%D8%AF%D9%84%D9%8A%D9%84-%D8%A7%D9%84%D8%AA%D9%83%D9%84%D9%81%D8%A9-%D9%88%D8%A7%D9%84%D8%B9%D9%88%D8%A7%D9%85%D9%84-%D8%A7%D9%84%D9%85%D8%A4%D8%AB%D8%B1%D8%A9). [Contact us](/contact) for a free consultation about your surveying needs in Alexandria and the surrounding region.

Looking for the best surveying office? Read our guide to choosing the best surveying office in Egypt: 8 criteria to compare any land surveying office before you sign.