Strictly speaking, enclosing a terrace is regarded as unauthorized construction. However, in many cities, design flaws by the original developer have caused problems such as roof leakage or poor insulation, so in most Chinese cities the authorities tacitly allow sunrooms in certain areas.

Of course, the prerequisite is that the safety of the building itself is not affected. How can you tell whether a sunroom can be built on your property? Here are a few suggestions:

1. Review for yourself the existing problems or hidden risks on the terrace and reinforce the need for a sunroom (such as roof leakage or poor insulation).

2. Check whether sunrooms or other conversions or extensions exist in your community or nearby communities, to gauge how strictly the local policy is enforced.

3. Seek the views of owners of the same or similar unit types in your community to raise awareness of the issue, and ideally reach a consensus.

4. Talk to the property management company or developer about the existing problems or hidden risks on the terrace, paving the way for building a sunroom.

5. Design a sound enclosure scheme for the unit type that does not affect the interests of neighbours, and ideally obtain their approval.

6. Before construction, submit the design scheme to the property management company or the local urban management department for the record, to avoid the risk of forced demolition later.

In short, if you want to build a sunroom, it is best to find reasonable grounds, reach a consensus with neighbours and design a sound scheme - and if it is filed with the property management company or the local urban management department, you can rest easy! Finally, building a sunroom is as important as building a house, so we recommend choosing a professional sunroom company to serve you for greater peace of mind!