BIG +1 for growing indoors
I understand that Cooking indoors/secluded personal locations was removed due to the fact that it caused players to not interact with one another for extended periods of time. My recommendation would be to make the time it takes to grow indoors significantly longer than at the labs, maybe an hour or two or even longer. This would allow you to choose the avenue you want to take to grow. Grow at the labs with significant risk and quick turnaround, or inside a property with no risk but a time commitment. This would make it more of a passive grow and make sure players are still interacting with one another. Add a limit as to how many plants can be growing inside to balance it. As well as adding items needed to grow inside. For example, grow lights, fans, thermostat, dehumidifier, etc. Do not need to add a crazy amount of items, just some ideas. This would not take away from the RP in the same way as private cooks did, as there is no need to sit there and watch a plant grow in a secure location. This could also add additional RP for LEO and crim regarding the raiding of said grow spots. Could also add the items needed to grow onto the import list. Thus providing even more RP for both official gangs and smaller groups, as there would be a interaction needed to buy/sell said items.
I firmly believe this addition could enrich rp opportunities for every group involved, aswell as providing solo players a safe way to grow.