The note about liquefaction is about a study the Christchurch City Council has undertaken in the Christchurch metropolitan area, looking at known soil types and other available data to work out what is likely to happen to the soil in the event of a large earthquake. 

For instance sandy soils will react differently to strong ground shaking than clay or gravel soils. What may happen is that buildings may tilt or pipes and tanks may work their way out of the ground. The Christchurch City Council puts this note on all LIMs it issues (including those for Banks Peninsula that were outside the study area).  The study was not site or property specific. 

 

If you are redeveloping the site (particularly if you are building a multi-storey building) you may need to get specialist advice for foundation requirements, otherwise it should not affect what you can do on your property.  If you want more information I can send you our booklet on liquefaction.