Can anybody please guide me related to building regulation and Completion certificate as i am first time buyer. I am thinking of buying a property which had extension ~23 yrs ago (Rear load bearing wall removed to make dining hall bigger, extension in kitechen, extension to make porche). I can see planning permission approved on council website but seller (Property is sold by trustee because seller is bankrupt) is not able to provide any further information regarding completion and advised for indemnity insurance by my solicitor. I am on last stage of contract exchange and this is holding my nerve to proceed. Surveyor didn't flag anything serious with extension. Should i proceed with the purchase? Will there be any issue in future if i think of selling or renting or will council create any problem.