This echoes my current gig to a tee: worked at home for a couple of months, went stir crazy, found an office. For me, the first office space was a hipster cafe type place that was just too freaking noisy. I moved to a Regus office which was ok but Regus were awful so a few of us clubbed together and got a truly shared office with both closed and open spaces for different type of work. I can highly recommend this setup as some days you just need to hole yourself up in a private enclosed office to do brain work. However the open space promotes social interaction and feeds the soul.