As far as Madam Lim Siew Chin is concerned, she and Madam Seow Chiew Chuen are more than just neighbours.
"We are family. We look out for one another," said the housewife and mother of two children aged nine and 12.
Both families moved into the same block in Toa Payoh Central five years ago and both women did not take long to get to know each other.
Madam Lim's mother-in-law loves to cook and makes sure she cooks enough so that she can share their food with Madam Seow's family.
Said Madam Lim, 35: "When I make agar agar, I share it with Crystal (Madam Seow). We eat mooncakes together and our children often go to each other's homes.
"We also carry lanterns together on our roof-top garden during the Mid-Autumn Festival."
Madam Lim's children and father-in-law seldom have to visit a hairdressing salon as Madam Seow, a hairdresser, often helps to cut their hair.
Says Madam Lim: "Sometimes, when my kids forget to take their house keys with them, Crystal will not hesitate to let them stay with her until my husband or I pick them up.
Says Madam Seow, 35, a mother of two children aged four and five: "When my children have problems with their schoolwork, they go to Madam Lim's home to ask her or her children for help."
Such acts of neighbourliness are what Madam Lim loves to see among residents in her block.