From removing scores of cats from animal hoarders to treating dogs that have been beaten, Auckland SPCA helps about 15,000 animals annually - its sole facility in the region is so stretched it's almost always at full capacity.
The centre at Westney Rd in Mangere serves around 1.5 million people, with its nine animal welfare inspectors travelling all over the region - a 7980 sq km area from Kaiwaka to Port Waikato - to investigate allegations of maltreatment.
And the organisation, which is dedicated to the protection and wellbeing of animals, is struggling to keep up with demand as the city grows in sprawl and population - and it is now in immediate need of a secondary base.
As the human population of Auckland increases, so too does its animal population, SPCA Auckland chief executive Andrea Midgen said.
"We get into the situation where people turn up with animals or the inspectors bring in animals and we're so full we have get quite inventive as to how we can squeeze them in."