Housed in a converted fire station, the Trinity Capital Hotel features contemporary-designed rooms featuring neutral colors and a simple, elegant style. The hotel provides 81 guestrooms and some suites. All rooms include ensuite bathroom, broadband Internet access, trouser press, tea and coffee making facilities, voicemail, and in-room safe. The suites feature an extra spacious bathroom with a large jacuzzi bath, luxurious bath robes and slippers, complimentary spring water and fresh fruit on arrival, and a CD player.

The Trinity Capital Hotel hosts a wine and coffee bar in the lobby, while the hotel restaurant on the first floor, Sienna, serves contemporary Mediterranean cuisine as well as Irish-smoked salmon, roast duck, and various vegetarian dishes. Room service is available, except on Sundays. Accommodations for small meetings or seminars are available at the hotel for up to 40 people. Catering and private car parking also can be provided.

Because the hotel is owned by the Capital Bars Group, guests enjoy VIP treatment at seven top night spots in Dublin. Guests also are offered a complimentary pass to a nearby, well-equipped Jackie Skelly Health & Leisure facility.