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GIS at UCD and on the Web: OSI MapGenie

UCD Library GIS Guide

Access to MapGenie

MapGenie can be accessed in two ways:


1.    Access the mapping series available in MapGenie by importing them into ArcGIS. To do this follow the instructions in the box below Using MapGenie via ArcGIS 10.7


2.   Via a website interface where you can print a basic map. To do this click on one of the links in the Using MapGenie via Website Interface box below. The link with the most map series available in it is MapGenie ITM Service. Step-by-step instructions are in the Powerpoint below:

1. Using MapGenie via ArcGIS 10.7

Whatever discipline you are teaching, researching or studying will include location data. Likewise administrative staff deal with data which includes location based information. Visualising this on a map can transform a table of spatial data into something which is more clearly understood and reveal new insights. 

By using a software package such as ArcGIS 10.7 you can use the OSI mapping available in MapGenie and then add your own data.


You will need a username and password to access MapGenie layers via ArcGIS 10.7

To request these please e-mail

Do NOT share these details with any other person, as this would be a violation of OSi copyright and a breach of the terms and conditions under which UCD Library has subscribed to MapGenie.


Full step-by-step details showing how to add MapGenie layers in ArcGIS are provided in this guide : How to Add MapGenie to ArcGIS 


More Library guides on using ArcGIS are available at:

Mapping datasets available through MapGenie

The table below shows which MapGenie series are available in each service and projection: 

ITM (Irish Transverse Mercator EPSG 2157), IG (Irish Grid EPSG 29903) (see FAQs on MapGenie in adjacent column for information on these projections)

For overlaying maps onto Google Earth use WM (Web Mercator EPSG 3857).

See and paste in the EPSG of the specific projection within the search engine on the top right hand side of the screen for additional information on the projection.


ITM Cached


IG Cached



Cached only

Basemap Premium



Basemap Public



Basemap Large Scale




Basemap Small / Medium Scale






Discovery Hill Shading


Hybrid Building




Hybrid Transport




Hybrid Water




Historic 25 inch (1888-1913)




Historic 6 inch b&w (1837-1842)




Historic 6 inch colour (1837-1842)




6 inch Cassini (last copperplate edition)




Ortho (latest) colour


Ortho 2010 colour






Ortho 2005 colour




Ortho 1995 b&w




Basemap Eire Map




Install ArcGIS 10.7

ArcGIS 10.7 is suitable for installation on PCs only (see note on Macs in the instructions below) and the minimum required computer specifications for installing ArcGIS 10.7 are as follows:

2 GB RAM minimum or higher 
Display Properties 24 bit color depth 
Screen Resolution 1024 x 768 recommended or higher at Normal size (96dpi) 
Swap Space Determined by the operating system, 500 MB minimum. 
Disk Space 2.8 GB 


2. Using MapGenie via Website Interface

OSi MapGenie is a web mapping service that provides online, immediate access to the mapping collections of Ordnance Survey Ireland ranging from the historic 19th century 6inch maps to current large scale data.

This document guides you through accessing and viewing MapGenie via a Website Interface: Guide to Using MapGenie via the Web

There are various map layers available but there are more in ITM than IG.
There are both Public and Premium layers for Medium/Small Scale mapping. The current difference between them is outlined below:

Large Scale Public:
Reduced visibility of avenues and minor paths
Housing division visibility reduced
No street furniture of Man holes, Lamp standards, Hydrants, Footpaths
More defined street names
More defined buildings with shadow effect
Includes an OSi watermark.

Large Scale Premium:
Includes all possible features
No watermark

To Access MapGenie click on one of the links below and then enter your UCD Connect details:

MapGenie ITM Service (this has most map series)

MapGenie IG Service (use this if you need Irish Grid data)


Image of Athlone town from MapGenie

MapGenie is ideal for use in any subject or discipline which includes location data - so it's not just for geography, archaeology or planning but for disciplines ranging from business, science, history, politics, medicine and engineering to architecture, literature, environmental studies and tourism.

Frequently Asked Questions

Here you will find questions and answers on MapGenie. We will add more as we receive questions and prepare answers for these.

Send your questions to

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