Where are the previously demolished houses in Nanjing Taipingmen Farm Lane distributed? About 30 years ago, a colleague of my mother lived there. Now I want to find her colleague.

If Nanjing Taipingmen Farm Lane was demolished before, there are usually several possible situations for the resettlement of residents after the demolition:

1. **Relocation**: Demolished households Get resettlement housing in the original site or in a newly built residential area nearby. This is often because the government wants to preserve the social fabric and neighborliness of the community.

2. **Relocation**: If the original site cannot be rebuilt or expanded, the government may choose to build resettlement housing elsewhere and arrange for the relocated households to live there.

3. **Monetary compensation**: The government may also provide monetary compensation to allow the relocated households to purchase housing in the market.

4. **Hybrid Plan**: Sometimes the government will provide a mixed plan, that is, part monetary compensation plus part in-kind resettlement (such as allocating a small resettlement house).

Due to the limited information you provided and the time span of 30 years, it will be difficult to find the exact placement location. You can try the following steps to find your mother's colleagues:

1. Contact the local community service center or sub-district office. They may have demolition records and resettlement information at that time.

2. Search online for information about Taipingmen Farm Lane demolition and see if you can find relevant news reports or official announcements.

3. Post missing persons notices through social media platforms, and you may be able to contact lost friends.

4. If you know the name of her colleague, you can try to check her current address through the household registration system.

5. Visit old neighbors or acquaintances to see if they have relevant information.

It is important to note that some information may not be publicly available for privacy reasons, and that people may move away from their original placement over time. So finding old friends may require some patience and luck.