The Royal Victoria hotel in Llanberis has completed a £1m, five-year refurbishment.
The three-AA-star property in Gwynedd, which has been owned by the Ackerley family for 50 years and is managed by Focus Hotel Management, has upgraded all 104 bedrooms and made improvements to its reception and dining areas.
The hotel, which employs 85 members of staff, has reported that turnover has already almost doubled since refurbishment work began in 2013 and it hopes to achieve a rosette for its restaurant over the next year.
The hotel now showcases local granite and slate across its internal and external fittings and façade, and a computer-controlled heating and hot water supply have been fitted.
While work to the main hotel has been completed, a further £100,000 will be invested during the winter on seven executive rooms.
General manager Steve Lee said: "The number of people visiting the area to walk up Snowdon has increased in recent years and with work at the Wylfa nuclear power station set to get under way, there will be an increase in executives and workers looking for somewhere to stay, so North Wales needs to provide accommodation of this quality."
The venue was originally built in the 1830s to offer hospitality to visitors who arrived by stagecoach.