GNSS Construction Surveying for Mountain Villa
We provided full setting-out and earthwork verification surveying for a new private villa in the Chouf district. Using a SOUTH GNSS rover with cm-level RTK accuracy, we staked the building footprint, verified retaining-wall geometry, and produced as-built quantities for the contractor's monthly billing.
The Challenge
The site combined steep terrain with multi-level retaining walls and required tight coordination with both the excavator crew and the structural engineer. Any setting-out error early in the build would propagate through every level above it, so the survey had to be defensible against the design drawings and the OEA-approved permit set.
The Result
The villa shell was set out and verified to within design tolerance on every level. The contractor used our as-built quantities directly for billing, and the client received a complete control record they can hand to any future engineer working on the site.
Our Solution
RTK GNSS Reference Network
We established a local RTK base station tied to a known control point so the rover could deliver centimeter accuracy across the full site, even on the lower terraces where line-of-sight was limited.
Building Footprint & Retaining-Wall Setting-Out
Building corners, retaining-wall alignments, and rebar-cage centerlines were staked and double-checked against the architect's plan. Each stake was tagged with elevation so the formwork team could pour to design level without re-measurement.
Earthwork Quantity Verification
Pre- and post-excavation surveys produced cut-and-fill volumes for the contractor. The same dataset fed an as-built record for the client and supported monthly progress invoicing without disputes.
Materials & Technology
How We Solved It
Why Choose White Line
Four non-negotiable commitments that set us apart from every other firm in Lebanon.
The "Straight Line" Promise
Total transparency from day one. No hidden costs, no surprises. What we quote is exactly what you pay — we put it in writing.
Technical Precision
Premium Sika, Mapei & BASF materials. Leica & DJI survey instruments. LIBNOR-compliant designs. Sub-centimeter accuracy on every deliverable.
One-Year Guarantee
12-month written warranty on all engineering and waterproofing work. We stand behind every project, long after the last coat dries.
Safety-First Culture
4-year record of zero work-related incidents. We follow every international safety protocol — because our team goes home to their families every night.