Your architect is correct if your house is more than two storeys (as the one in the picture is). We installed a concealed fire curtain which drops down in the event of a fire alarm, to separate the kitchen and living area from the escape route. There is also the option of mist systems for non standard open plan layouts. We hope this helps! Regards Warren Howling

Thanks Warren. That's really useful. I think I need to change architect because my current one is not willing to discuss options with me. I look forward to speaking with you. Jichao.