Guide to ALL The Irregulars Filming Locations: The House at 221B Baker Street

Falkner St in Liverpool's Georgian Quarter doubles as Baker Street. The exterior of Sherlock Holmes' apartment at 221B is located across the street from the small Sugnall St.

However, The Duck and Quiver pub and the slum side of the street were CGI'd into the scene.

The side of the street where the group of troubled teens spends most of the time was filmed in a series of service buildings in the yard off Piazza Court at Wentworth Woodhouse.

Film crews created an outdoor set at the long-abandoned servants’ quarter in this massive stately home near Rotherham in South Yorkshire. The old slaughterhouse in the back yard was transformed into The Duck and Quiver.

Also, the Green Dining Room, at Wentworth Woodhouse served as Prince Leopold chamber at Buckingham Palace.

The original wallpaper of this formerly dressing room was colored with arsenic. The exterior facade of the building, considered to be the largest private residence in the UK, is twice as wide as the real Buckingham Palace.

The property is a very popular location for period dramas and has been featured in productions like Downton Abbey, Victoria, or Darkest Hour.

In the first episode, An Unkindness in London, there is a short scene filmed in the Victoria Tower, located at Salisbury Dock in Liverpool.

The Gothic Revival docker's clock was built in the 19th-century to aid sailors in providing accurate time and meteorological info.

This same location was used in Captain America: The First Avenger, Peaky Blinders, and Robert Downey Jr and Jude Law's Sherlock Holmes.

Also in this chapter, when Bea comes back from the cemetery late at night, there's a short scene filmed in an iron footbridge at Castlefield neighborhood in Manchester.

The Sentinel magazine reported that The Irregulars was filming in the Middleport district located in Burslem (Stoke-on-Trent).

The birds chase from the first episode was filmed in the historic Middleport Pottery. The dentistry from the second chapter was filmed at the dilapidated former calcination mill in Milvale Street.

In the series, Rory McCann (Sandor "The Hound" Clegane on Game of Thrones) controls an army of birds in the largest aviary in Europe.

The Victorian dome-shaped greenhouse is the Sefton Park Palm House in south Liverpool. Opened in 1896, the palm house is the jewel of the crown of this historical park, staging music and dance events.

The structure has been restored gradually since it was hit during the Blitz of May 1941. Today, it stocks a rich collection of exotic plants representative of five continents.

In the second chapter, the Inner Cercle members of the Golden Dawn meet at Mycroft Holmes estate just outside the city.

The exterior was filmed at Dorfold Hall in Acton, just outside the Cheshire market town of Nantwich, 40 miles south of Liverpool.

Originally built in 1616, the manor is considered to be one of the finest Jacobean houses in the United Kingdom. The stately home, surrounded by 800 acres of the superb English countryside, is sitting at the end of an elegant tree-lined avenue.

The iron statue of a dog with puppies came from the Paris Exhibition of 1855. The gardens include the last preserved section of the original Delamere Forest and a monumental chestnut tree, believed to be over a thousand years old.

You can visit this private property on a tour, and it also can be rented to celebrate weddings, private parties, and corporate retreats.

The Nantwich News informed that the production was filming on location night-time scenes with powerful lights illuminating the gardens.

However, there is no Gothic folly on the grounds of Dorfold Hall. The tower of the sacrifice standing on a hill is the Cage at Lyme Park in Disley, Cheshire.

Built in 1737, throughout history it has served as a hunting lodge, watchtower, and prison.

All the interior rooms of the house where Sherlock grow up were filmed at Arley Hall, located about 25 miles away from Dorfold Hall.

The house features intricate ceilings, elaborate fireplaces, and impressive stained glass.

The ceremony was filmed in The Gallery, the principal sitting room of the mansion. The library is ideal to hide an old book. The Elizabethan Grand Staircase and a bedroom also appear in the series.

The St George's Hall Liverpool was used in several scenes. When Leopold sneaks out of Buckingham Palace, the staircase and the exterior facade with large columns were filmed here.

The Hippodrome theater from chapter two: The Ghosts of 221B was recorded in the Concert Hall of this Neoclassical landmark, hosting conferences, exhibitions, and events.

Also in the second episode, the house of the child with no teeth was filmed in Abbey Square next to the Cathedral in Chester, the beautiful walled city founded by the Romans situated on the border with Wales.

The Gladstone Pottery Museum in Longton, Stoke-on-Trent was turned into a bustling street to film chapter four: Both the Needle and the Knife.

The museum displays 50 surviving bottle ovens, the monumental kilns of this former pottery factory, first opened in 1787. The creepy taxidermy shop was also filmed here.

The art nouveau hospital with beautiful decorative stained glass windows, mosaic floors, and ornate ceramics is the Victoria Baths in Manchester.

Built 1903 between and 1906, the building has been partially restored and is usually open as a heritage visitor attraction and events venue.

A room of the Turkish baths was also featured in a flashback scene of the first episode with Jessie and the Bird Master, Arthur Hilton.

Edith Dubois' house at 11 Colebrook Gardens was filmed in a six-bed Victorian house at Flookersbrook, in the Hoole suburb of Chester.

Located on the corner of Halkyn Road, the mansion is called Spring Lodge. The film crew dressed the area with gas-style street lamps, to look like the time period the story is set in.

The circle room in the London library with a round oculus skylight at the top is actually the Wolfson Reading Room at the Manchester Central library.

The apocalyptic harbor at the end of episode 6, Hieracium Snowdoniense, are the heavily CGIed Industrial Age buildings of the National Waterways Museum in Ellesmere Port.

This national landmark is focused on Britain's navigable inland rivers and canals. The complex includes a great selection of historical boats.

The Daily Post reported that the interior of the jail from episode 7 was filmed at the Ruthin Gaol Museum in Wales, a Pentonville-style prison open to the public as a heritage attraction.