Budget hotel travel in Dublin requires accepting a few trade-offs: rooms will be smaller than the luxury tier, breakfasts are likely to be buffet-style, and the finish won't be Georgian grandeur. But the city's walkability and its network of free museums, parks, and pub culture mean that the hotel room is less important than in car-dependent cities. Get the location right, the bed comfortable, and the bathroom clean — everything else happens outside.
The best budget strategy in Dublin is to stay either in the mid-city south side (around Grafton Street, Temple Bar, or Georges Street) or in the inner suburbs that have good public transport links: Rathmines on the south side and Phibsborough on the north are 15–20 minutes by bus or bike from the city centre and have good local cafés and pubs that further reduce the incentive to spend on hotel food.
Hostels have elevated dramatically in Dublin's budget landscape. Generator Dublin in Smithfield is the city's best large-format hostel — private rooms available, a great bar, and a genuinely social atmosphere without sacrificing the comfort a traveller needs after a day of sightseeing. Kinlay House near Christ Church is the best traditional hostel in the centre.
For solo budget travellers, Dublin has developed a small but excellent pod hotel/capsule hotel scene — Dublin Central is the best example, with tiny but well-designed sleeping pods at €50–€80/night in the heart of the city.
Key budget-saving tips: the Luas tram and Dublin Bus both accept the Leap Card (loaded like an Oyster), which makes airport-to-city transport €2–€3. Dublin's supermarkets (Lidl, Aldi, M&S Food) sell excellent sandwiches and prepared food. Free walking tours run twice daily from Trinity College. All the best museums cost nothing.