The first to greet me at the door of LyonsKelly is Conor, an enthusiastic chocolate cockapoo. He’s the first clue that this newly renovated Georgian building is not just an office but also home to the architect-and-interior-designer duo renowned for their sensitive reconfiguration of period properties.  Conor isn’t waiting for me, however.  John Kelly is running late, flying back from the Sarajevo Film Festival. The architect arrives within minutes, and their reunion is a sight to behold. “He’s been gone a full week,” says Eoin Lyons, the interior designer behind the brand. “I’ve been doing all the walking this week…