- Where is 221B located?
- 221B is in California, United States (1 Plas Cottages (off the A468), Lower Machen, Newport, NP10 8GX, Wales.Read more, People also ask, Where is Sherlock Holmes address 221B Street?, Is 221B Baker Street a real address in London?, What is Sherlock Holmes' exact address?, Where was 221B Baker Street filmed?, Web results, How to Find Your Vineyard's GPS Coordinates – Latitude and .).