Jane Allison Walker, of Lucas Avenue in Clifton, first moved to the City of York Council owned property 15 years ago. She said the mould started to develop six months into her tenancy.
First visible in her bathroom, Miss Walker said the mould has now got so bad it is damaging her furniture, clothes and curtains.
City of York Council said it was investing millions of pounds to tackle mould in council homes and will continue to work hard to tackle any problems.
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