US hospitality firm Method Co has turned a Gilded Age-era bank building into a boutique hotel in Wilmington, Delaware, which boasts the city's first rooftop bar.

The Quoin offers 24 guest rooms within a four-storey Victorian Romanesque brownstone that was constructed as the Security Trust and Safe Deposit Company Building.

Completed in 1885 by Philadelphia architect Frank Furness, the downtown building features original arched windows and mouldings that were preserved during the renovation, which Method Co's in-house team undertook in collaboration with Stokes Architecture.

"Pronounced 'coin', the name is derived from the Old French word meaning 'corner' or 'angle', honouring the legacy of the original building, while also referencing the legacy of the original banking house — connecting the building's history, location, and architecture through a single thread," said Method Co.

The building's time period influenced the colour palette for the hotel's interiors, based on paints dating back to 1820.

Natural motifs were also introduced through hand-drawn illustrations, and various patterned wallpapers found throughout the communal areas and the bedrooms.

In the lobby, an eclectic mix of contemporary and Shaker-influenced furniture forms a cosy lounge area around a black fireplace.

Three food and beverage spaces have been given distinct identities.

Just off the lobby, The Quoin Restaurant and Bar serves wood-fired fare based on the cuisines of southern France and northern Italy and features wood panelling and banquette seating that create an intimate setting.

A craft cocktail lounge, named Simmer Down, has an original brick ceiling and a mural painted by Reverend Michael Alan.

The bar on the rooftop, billed by Method Co as the city's first, is designed as a happy hour spot with cushioned rattan seating and offers light bites on the menu.

Bedrooms are simply decorated, with wallpaper used to create feature walls behind the headboards, as well as wooden furniture and herringbone parquet flooring.

Those on the top level have extra character thanks to the cove-arched windows and walls that curve to follow the roofline.

Method Co's other hotel properties include the Roost East Market in Philadelphia and the Whyle in Washington DC, which was longlisted for the 2021 Dezeen Awards. Both were designed with Morris Adjmi Architects.

This is the company's first venture in Wilmington, the largest city in the small coastal state of Delaware, which is known for its beach houses.

Examples of these include an oceanfront residence by Robert Gurney and a single-family home built using wood reclaimed from a nearby agricultural structure by DIGSAU

The photography is by Matthew Williams.