20, DENMARK STREET (See details for further address information)

No. 20 Denmark Street is a terraced house with a later shop and a former warehouse, known as No. 16 Denmark Place, attached at ground floor level to the rear. It is currently used as a shop and offices. The building dates from around 1686 to 1689 and was part of an estate development by Samuel Fortrey and Jacques Wiseman, with the early 19th-century warehouse added later.

The house is constructed of multi-coloured stock brick, with the fourth storey made of yellow stock brick. It features stucco keystones and a string course at the first floor. The building has four storeys, with the fourth storey being a later addition, and two windows. The windows have gauged red brick flat arches and dressings, with recessed sashes that have flush frames and exposed boxing. The ground floor has a 20th-century shopfront that extends into the ground floor of No. 16 Denmark Place.

The warehouse is made of yellow stock brick, painted on the ground and first floors, with brown brick at the rear. It has three storeys and a basement. The ground floor features a 20th-century shopfront, while the first floor has 20th-century windows. The second floor retains original central loading doors flanked by sashes. A parapet caps the building. At the rear, there are six unhorned, gated sashes on both the first and second floors, along with a chimney stack that runs the full height of the building on the right side.

Inside, there are pine beams, a late 20th-century main stair, and an original subsidiary stair. The third floor includes a glazed roof lantern.