Building of the Prophet ﷺ's Houses in Madinah

After spending two to three weeks building the masjid, the Prophet ﷺ began building his own houses. At the time he had two wives, Sawda RA and Aisha RA, and both of their houses were built against the masjid. These were the only two of his wives' houses that ever opened directly onto it. He married his later wives years afterwards, when other houses already filled the space around the masjid, so their houses stood in a separate block.

Sawda RA was an elderly lady, older than the Prophet ﷺ. Wanting to please him, she later gave her night with him to Aisha RA. From then on the Prophet ﷺ would visit Sawda RA and spend time with her during the day, but he did not spend the night in her house. So of the two houses joined to the masjid, Aisha RA's was the only one he actually lived in.