The Internet ad reads for the most part like a regular house listing, saying that the single-storey property has two bedrooms, two bathrooms, a parking space and a fish pond.
But it also proposes to buyers a "rare offer" -- "when you buy this house, you can ask the owner to marry you", alongside a picture of Wina Lia, a 40-year-old widow and beauty salon owner, leaning against a car in front of the house.
News of the offer quickly spread among Internet users in social media-crazy Indonesia.
Boldies99, a user on popular online forum Kaskus, said Lia was "quite smart -- even though the house will be sold, she will remain the owner."
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Lia told AFP she was "shocked at the reaction", as she had been overwhelmed by journalists coming to interview her, and even the police in the conservative, Muslim-majority country had been asking questions.
The mother of two explained that she had asked a friend who was a property agent to help her find a buyer -- and in the process a husband -- but she had expected him to pass on the news to a limited number of people, not put an ad online.
"I told a friend of mine who also works as property agent that if there is a buyer who is a single man or a widower who wants to buy a house, and at the same time look for a wife, he can let me know as I'm also a widow," she said.