Valuation zero without statement confirming property meets MHCLG requirements

Giammy85

I cannot find on the internet any reference to such a request from a surveyor.
Trying to buy a flat in a six storey building in London. It was built in 2007.
Halifax/e.surv completed last year a valuation very smoothly. Transaction dragged, so this year I made a new mortgage application with Natwest.
This time physical valuation came as zero. Natwest/L&G require: the building owner/agent/the responsible person under the regulatory reform (Fire safety) Order 2005 to produce a written statement to confirm that the property meets the requirements of the current guidance from MHCLG. The statement must be prepared by a suitable qualified independent professional. 
I had to struggle a lot for Natwest to share precisely what they are after, so I was obliged to log a formal complaint with them.
I had provided both a recent EWS1 form and a Fire Risk Assessment report dated October 2018, as advised by the estate agent, but they are not sufficient. 

Is this request from lenders/surveyors now common practice? What does the owner need to do to get such statement? Does this refer to the whole building or just the flat?

dimbo61

And that is why thousands of flat owners are unable to sell the flats they are living in.
Cladding has made them unsaleable so it needs to be removed and who is going to pay. 
Grenfell Tower 

Giammy85

But my case has nothing to do with cladding as an EWS1 form was already provided.

According to the estate agent "I think lenders have been ‘feeling their way’ with this over the last few months and the whole subject has been a major headache. As I mentioned, the other flat’s mortgage in the same block went through without any problem so you’ve been unlucky with Natwest."