Online Maps



Frequently asked questions on Corporate Geo-Informatics: Online Maps 


How do I access/launch the Online Maps Viewer?

Click on Online Maps found under the "Online Maps" tab on the eServices homepage. Thereafter, accept the disclaimer. This will load the landing page. On the left of the landing page is a list of Themes to choose from. Click on a theme name (e.g. Property), then click on "Map Viewer" on the right-hand side of the screen. This will launch the map viewer.


How do I get a print larger than that offered on the website?

The Online Maps offers the printout of A3 and A4 size maps only. Any other sized maps will need to be obtained from the CGIS: Project Section. This can be done by visiting Corporate Geo-Informatics at our offices (you can find the address and directions on our Contact Us page). Alternatively, send an e-mail with your details and your request to


How do I get information for features next to one I am looking at?

Make sure that the layer you are interested in is active (check the box next to the relevant layer under the "Layers" tab). Select the identify button (the "i" on the "Identify" tab) and click on the feature you are interested in. A pop-up box will appear with the information - click on "report" or "zoom to" to view the information related to the identified feature.


How do I go closer to the picture?

You use the "zoom in" button (looks like a magnifying glass with a plus in it) found under the Navigation tab. You can either create a box around the area you want to zoom into by clicking on a spot and dragging the box around the desired area, or just click on a spot you want to be the centre of the zoomed area and it will zoom in for you. You can use the zoom out icon (magnifying glass with minus sign in it) to move out of the map. Alternatively, you can use the wheel on your mouse to zoom in/out of the map.


How do I locate a property by address?

Make the street address layer active by checking the box next to "Street Address" (this can be found under "Property" in the "Layers" tab). Go to the "Search" tab and type in the street number and the street name you are looking for, then click search. A results box will appear at the bottom of the screen with all the addresses on the database that fit your search requirements. Click on the item you want, then choose "zoom to" or "report".


How do I measure areas like the size of the school field?

Zoom in to the school field, then select the measure button (ruler with a question mark above it) from the "Measurements" tab. Click points around the area you want to measure; the measurements will appear as a value in km/m/sqm in the Measurements tab.


How recent is the information on the CGIS website?

The cadastral (property data) is updated on a weekly basis. The Roads data, obtained from the Johannesburg Roads Agency, was last updated in August 2009. The Aerial Photography (copyright City of Johannesburg) was flown in May 2019. Most of the other data has been captured over the years.

I can't get the CGIS website to work properly. What should I do?

Make sure that you have a stable internet connection. Restart the website and wait until the map loads completely before pressing any other buttons. Log a query or call Online Mapping Support for further assistance


What is GIS?

GIS stands for Geographic Information System and is a computer technology that combines geographic data (the locations of man-made and natural features on the earth's surface) with other types of data (names, classifications, values, etc.) to manipulate, analyse and present information (maps and reports). For more info, please go to the Corporate GIS home page.


What is the best way to learn how to use the website?

Donload the Online Maps Help Manual and experiment.

Attend a free Online Maps Website Training session (prior booking is essential).


Why don't all the layers (such as aerial photography) appear all the time?

If all the layers were to be displayed all the time the whole map would be very confusing, therefore specific layers will become visible at certain scales (such as the aerial photos) where they can be best viewed. Others are switched off once a resolution is reached (like national roads) as they have little relevance when considering a smaller area.


How can I download data from the website?

Data from the Online Maps can be downloaded in shapefile/kml/dxf format for certain layers. To download data, zoom to the area which you require data for, then click on the Extract Tool tab (left-hand side of the screen). Check the boxes next to the names of the layers you want to download, choose a format, and then click "Extract". This will download the data in a zipped file to your device's downloads folder.


How do I access the Mobile Map Viewer?

Copy and paste the following link into your browser to access the Mobile Map Viewer:

Download the Mobile Map Viewer help Manual to learn how to use the Mobile Map's functions and tools.


Online Maps Help Manual

​The Online Maps Help Manual has been designed to help you use the online maps viewer more easily.

The Online Maps Help Manual is in a PDF Format and was last updated on 2021-12-01.


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