Sliding Chapel is the result of this year's Meetings of Design Students (MEDS), an annual international workshop that takes place in a different country every time.
Designed by Donnellan, the simple structure was constructed by participants at the design festival over the course of two weeks. It is intended as a non-denominational place of reflection with views of the Mediterranean Sea.
"The chapel is for anyone who wants to take a few minutes to stop and think during their visit to the vast complex of the Byblos Citadel, Donnellan told Dezeen. "It offers a great place to rest since it points towards a strong sea breeze."
"Making it non-denominational was important," he continued. "This neutrality was essential due to the wide range of cultural influences on Byblos' history."
According to Donnellan, the building is designed to appear as if it is slipping down the side of the cliff into the sea below.
"The angle of the roof is chosen to match that of the slope on which the pavilion sits," he said. "This is what gives the building the eccentric appearance of being both anchored and sliding at the same time."
The pavilion is constructed from up-cycled timber shipping boxes that were charred using the traditional Japanese shou-sugi-ban technique.
This method involved tying three boards, which were up to four metres long, together to form a chimney and setting a fire at the base.
Inside the simple chapel, a recessed seat allows visitors to sit, reflect and take in views of the Mediterranean through a lowered window. As the pavilion directly faces the sea, a constant breeze keeps the interior cool.
"Internally, the slope of the ceiling encourages visitors to take a seat by creating a sense of compression in section as they approach," said Donnellan.
"In plan, the tapering defines an intimate entrance on one side and then expands to create an inviting view on the other."
Pavilion architect: Kieran Donnellan.
MEDS workshop co-ordinator: Samer Hayek.
Participants: Alberto Ibanez, Amber Goveas, Cynthia Antablian, Faustas Lasys, Gregorio Tomasillo, Hadir Hanna Mahmoud, Hasan Debes, Ioanna Maria Vemou, Magdalena Storozenko, Matthias Brenner, Rabia Hant, Roisin Leavey, Shpat Ademaj, Shqiprron Jusufi.