This is
Sylloge

Pronounced, Sil-Oh-Gee: Sylloge is from the greek ‘collection’. We create a digital collection of your information

We work for landowners or consultants who are dissatisfied with expensive, poor quality or unavailable survey plans.
We use existing online information providers and process the data to create a high quality detail and contour plans for planning and design.
Unlike the high cost of survey firms or low quality of free mapping our methods produce survey grade plans for a fraction of the cost.
Better quality plans save time and money.

Desktop Surveys

We create professional survey site plans from our desktop.

After 30 years preparing survey plans with surveyors and drones, we have now developed the ideal workflow.

We use off the shelf aerial imagery and lidar elevation data that covers coastal NSW and Queensland. These are the two key outputs from a drone survey so the data collection stage is vastly simplified, more affordable and faster.

Aerial Imagery

High resolution imagery gives you a perfect record of you site.
Imagery is captured at 7cm resolution. This means an object the size of a phone would equate to two pixels in the image. Features larger than this are usually distinguisable. The quality is 5+ times better than satellite.

Lidar Elevation Data

LiDAR that stands for Light Detection and Ranging is a technology that is based on laser beams. It shoots outs laser and measures the time it takes for the light to return.
Our Lidar data provider has captured most of Coastal NSW & QLD. It has been mapped every meter to 0.3m vertical accuracy.
We extract this information, transform and model it to create contours and spot heights.
Lidar penetrates vegetation, so is superior to drone photogrametry when you have trees and grass coverage.
Note, Drones rarely require or achieve better than 0.2m so this data set is comparable. When you do need cm level accuracy, eg final setout, you should call in your local surveyor for a traditional survey.

Cadd Detail Plans

The contours from the Lidar data are combined with the detail extracted from the imagery. This vector information creates the traditional cad plan used for design purposes.
If required we can enhance the plan futher with cadastre boundaries, dial before you dig underground services and information as required.

GIS / Webmap

A geographic information system (GIS) is a framework for gathering, managing, and analyzing data. GIS integrates many types of data. It analyzes spatial location and organizes layers of information into visualizations using maps and 3D scenes. With this unique capability, GIS reveals deeper insights into data, such as patterns, relationships, and situations, helping users make smarter decisions.

We can also use a GIS or WebMap to display inspection imagery on top of your site data. These are individual images highlighting specific features. Points are geolocated on a map and you visually navigate rather than browsing through folders. This scales to thousands of images over kilometers. We can prepare this from your supplied imagery, any photo that contains a GPS co-ordinate.