Even without a whole room dedicated to your plants
Even in their own contained area, as long as you have enough water, insulation, and light, you might establish a grow area almost anywhere, allowing for individuals to set up small cabinets in which to grow their plants. Although it will demand a little more energy and monitoring than you would in a full-size grow room, more contained setups are still just as plentiful as larger ones, with all of the same features, just integrated into a more compact scale for your flexability.
You could build your own space yourself, or if you're up to spend the money, you could shop around for pre-built hydroponic booths that can accommodate a variety of different plants, with excess space for you to work in and still have all of the relevant equipment. Even with the correct indoor grow lights, you could still give yourself plenty of room to tend to your plants without being limited by such a small area, and with the smaller type of LEDs and the fact that they run substantially cooler than other light sources, it makes it easier to work around also.
Just as long as you work to keep the space clean, and remember to tend to and monitor your plants often, you can easily find a place out of the way, in the corner of a room, in which to dedicate to your plants, and still not need to trouble yourself with any added concerns. Just as long as you watch the temperature and humidity and alter your LED grow light accordingly, as well as maintain regular watering and disposal of any dead leaves and debris, you do not need much else, you will be able to enjoy all of the same perks of a larger grow room, or outdoor growing, just about anyplace, plus providing you with something fun for you to talk about with your guests.