Auckland Council has just released a list of 25 buildings with exterior aluminum composite claddings like the Grenfell Tower in London, the scene of a fire last year where more than 70 people died.

But the council stressed the Auckland buildings with the flammable polyethylene cores in their aluminum claddings are not necessarily dangerous like the London block where people died because they have other means of fire protection.

The huge Waitakere Stadium at Henderson, certain Auckland Hospital buildings in Grafton, Spark's four-building campus in Victoria St, large residential blocks in the Viaduct and CBD, the huge PwC building on the city's waterfront, TVNZ's headquarters on Victoria St, Auckland University's Owen Glen Building and many apartment blocks appear on the list.

After a Herald official informarequest, the council named 116 buildings which it said "appear to utilise ACP cladding to some extent".

In some cases the cladding material possesses a modified fire resistant core, while far fewer cases have cladding with a combustible polyethylene core," said council building consents general manager Ian McCormick.

"The extent and use of ACP on the buildings varies considerably from the full façade, to decorative features only and...many buildings examined did not contain ACP at all," he said.

Owners of the buildings have been told about the claddings but McCormick stressed the buildings were not necessarily dangerous to occupy because they enjoyed extensive fire protection measures such as sprinklers, alarms and means of escape.

Of the 116 buildings on the list, those listed as ACP PE are considered to be most of interest as they have ACP cladding with a polyethylene core, like Grenfell Towers.

"The investigation found 116 buildings that appear to utilise ACP cladding to some extent. In some cases the cladding material possesses a modified FR (fire resistant) core, while far fewer cases have cladding with a combustible polyethylene core. The extent and use of ACP on the buildings varies considerably from the full facade, to decorative features only and, as noted above, many buildings examined did not contain ACP at all," McCormick said.

"Auckland Council has holistically assessed the risk posed by ACP cladding in each instance and considers that a combination of fire prevention measures, fire safety systems such as sprinkler systems, the extent of ACP coverage and its exposure to an ignition source reduces potential fire risks and therefore does not cause immediate concerns for occupants' safety," he said.

"In each case we have informed building owners or the body corporate and have stressed that these buildings are not considered dangerous. We have encouraged them to notify their insurers and seek their own professional engineering advice," he said.

Not all the blocks listed as having ACP PE claddings are residential - many are office buildings.

ACP PE blocks on the council list are:

• Various Auckland Hospital Buildings, 2 Park Rd, Grafton;
• Civic Centre Administration Building, 8 Henderson Valley Rd;
• Oceania & Eastern Building, 110 Customs St West, CBD; 
• Viaduct Point Apartments, 125 Customs St West; 
• The Spencer on Byron hotel/apartments, 9-17 Byron Ave, Takapuna; 
• Shoal Haven Apartments, 130 Anzac St, Takapuna; 
• Spark Centre, 167 Victoria St West, CBD; 
• PwC Building, 188 Quay St, CBD;
• TVNZ Building, 100 Victoria St West; 
• The Owen Glen Building at Auckland University, 12 Grafton Rd;
• Quest Apartment Hotel, 127-137 Hobson St;
• Dynasty Gardens Apartments, 135-137 Vincent St;
• An unnamed building at 14-18 Lovell Court, Rosedale; 
• AUT Millennium at 17 Antares Pl, Rosedale;
• Queens Lodge, 176 Broadway, Newmarket;
• An unnamed building at 2 Gillies Ave, Newmarket;
• An unnamed building at 212 Universal Dr, Henderson;
• A building at 2-38 Great North Rd, Grey Lynn;
• Kiwi on Queen, 415-427 Queen St, CBD;
H47 Apartments, 45-49 Hobson St;
• An unnamed building at 60 Stanley St, Parnell;
• An unnamed building at 64 Apollo Dr, Albany;
• City Garden Apartments, 76-84 Albert St, CBD;
• Waitakere Stadium, 79-85 Central Park Dr, Henderson;
• Nautilus hotel/apartments, 9-15 Tamariki Ave, Orewa.