A ratio used by lenders to determine the risk of default by prospective homebuyers when more than one loan is used. In general, lenders are willing to lend at CLTV ratios of 80% and above to borrowers with a high credit rating. 
Investopedia Says:
For example, let's assume that an individual is purchasing property valued at $200,000. This individual takes out two loans for the property, one for $100,000 and another for $50,000. The combined loan to value ratio would be 75%, (($100,000 + $50,000) / $200,000).
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