The Westin Dublin provides 163 lavish guestrooms with rich warm colours, mahogany furnishings, golden mirrors, and marble bathrooms. Each room features Westin's signature Heavenly Beds with pillowtop mattresses, triple sheeting, and down duvets and pillows. Westin's Guest Office® rooms includes additional features for business travelers. Many rooms boast views of the Trinity College and the Bank of Ireland.

Dining at the Westin is an engaging experience. Decorated in Art Deco style with an abundance of natural light, The Exchange Restaurant serves Irish and international dishes and hosts a popular Sunday jazz brunch. The Mint, a stylish basement bar located in the hotel's old bank vault, is fast becoming one of Dublin's most exclusive meeting places. Serving contemporary bistro- style dishes and light snacks, the Mint also features live jazz in the evenings. The airy Atrium lounge, a soaring five-story space in the center of the hotel, provides a comfortable selection of sofas and features afternoon tea.

The original 19th century Banking Hall, the hotel's signature room, has been timelessly restored to its original richness, featuring towering marble pillars, tall mahogany doorways, stunning chandeliers of Egyptian crystal, and intricate ornamental features covering the walls and ceiling. With seating for 200, the Banking Hall serves as the hotel's main conference room. Seven additional meeting rooms are available. Each are named after old Irish coins and offer sophisticated conference technology and natural daylight.