Christchurch City Council and CERA have by request added two new layers to the floor levels map.
First one includes elevation changes pre and post earthquakes.
The second one shows current elevation of the land.
Clicking on the right side on the tick button expands to show definition of the colors.
Enter site. this map
If required install Silverlight software. Accept terms to get access to maps.
Type in your address at top right corner. Hit enter.
On the left side of the screen you will see a few listings including floor levels for the specific site you are looking for.
Click on the listing, a box will display with relevant height information.
Click on zoom to feature.
Now you have current elevation and food predicted height and planning requirements in regard to floor levels.
Now select map layers at the bottom left corner.
Make a selection as per the images to see current elevation and elevation changes.
Keep in mind that the information does not substitute a proper site survey by a professional surveyor.
For example the gray area is displayed as +/- 25cm.
That equals 50cm error probability.
50 cm equals predicted sea level change for the next 50 years.
Durability requirements for a new building is 50 years.