Where was Dept. Q filmed? The house and Edinburgh locations

The series opens with prosecutor Merritt Lingard (played by Chloe Pirrie) at St Cuthbert's Kirkyard, a historic cemetery located at the west end of Princes Street in Edinburgh, nestled beneath the shadow of Edinburgh Castle.

Merritt climbs Warriston’s Close Stairs up to Edinburgh City Chambers, which served as the courthouse exterior.

The courthouse interior was filmed at Dundas House, a neoclassical mansion that now serves as the Royal Bank of Scotland’s head office.

Designed in 1857, its starry domed ceiling over the banking hall is one of the building’s most striking features.

Morck gets off the bus on Melville Street in Edinburgh’s West End, an elegant neighbourhood known for its Georgian architecture.

St Mary's Episcopal Cathedral stands as the imposing building in the background of the scene.

However, the building used as the exterior of Edinburgh Police Headquarters is located on Castle Terrace, more than half a mile from the bus stop.

Argyle House, a large Brutalist mid-20th-century office complex in Edinburgh, features the distinctive relief panels seen in the show, though the top was added via CGI.

The interior scenes were filmed on a set built at the studios.

In the second episode, the post-war modernist church is the Mortonhall Crematorium, located just south of Edinburgh.

Opened in 1967, its main chapel features tall glazed slits reminiscent of the modern section of Coventry Cathedral.

The fictional Egley House Hospital is portrayed by Vogrie House in Midlothian, located about 8 km southeast of Edinburgh.

This imposing three-storey sandstone mansion, with distinctive towers, was built in 1876.

Since World War II, Vogrie has served various roles, from a psychiatric nursing home and Cold War communications centre to its current use housing the Midlothian Ranger Service and a café within the park grounds.

The house in the third episode is a 19th-century fishery cottage nestled within the dunes at the edge of the beach on the Dalmeny Estate, near Hound Point.

The Prince’s Garden Hotel in the fourth episode is actually the DoubleTree by Hilton Edinburgh in North Queensferry, offering views of the Firth of Forth and its iconic bridges.

The climbing area with the elevator tower is the Edinburgh International Climbing Arena in Ratho.

One of the largest indoor climbing facilities in Europe, it is built inside a 30 m-deep former quarry.

The restaurant scene in the fifth episode was filmed at the Dakota Hotel Edinburgh in Ferrymuir, Queensferry.

This location also featured in the 2021 movie A Castle for Christmas.

The bar featured in the season finale is the Summerhall Café, located within the historic Summerhall arts complex.

Originally the Royal (Dick) School of Veterinary Studies, the centre now hosts a diverse range of events and festivals, including the Edinburgh Festival Fringe.