9 July, 2019 at 10:00

We’re happy to announce that we won the competition to design and execute a residential tower in Rennes.
Beyond the execution of this project JDSA will coordinate an ensemble of new buildings on the Blériot-Féval site to generate a mix-use and inclusive neighborhood within the Eurorennes development.


The development is located next to and comprises of the new station inaugurated last week. The city’s new express train connections have cut travel times to its neighbours and the capital by nearly half, enthusing many to develop business with or relocate to Brittany’s epicentre.

Within this Game Of Urban Thrones, Samsic, the region’s success story employing 90000, has set to relocate its headquarters to the Blériot-Féval site and steer its development, in collaboration with the developers from Bati-Armor and Rennes Municipality’s agencies.

The site is divided in 4 plots and coordinated by JDSA in collaboration with local architects Maurer & Gilbert and Paris offices SMAC and Think Tank.


The Féval Tower acts as the masterplan’s geographic and gravity centrepiece, offering 188 new apartments to the city. Our project promotes densification as a response to urban sprawl.

Our tower proposal manipulates the masterplan’s density to propose on ground level a stepped public space that invites the pedestrian to climb its base. Various commercial addresses will compose this base, on which the residential program grows from level 3, where the tower is most slender. Resonating Rennes’ colombage heritage, the tower thickens as it climbs upwards, to finally reach its maximum girth on level 10.


This is where a lush community park sets a pause to the rise and welcomes the building’s residents to a panoramic view of the city’s skyline under the shade of trees.

The building then resumes its ascension and profile all the way to its 27th floor, offering 184 new homes to Rennes’ residents.

See the project here


8 June, 2018 at 10:08


We are happy to launch our book “Built Unbuilt” in Stockholm, at Konst-ig bookshop, on Thursday 14 June at 5:30 – 7pm. Join the author, Julien De Smedt and the director of ArkDes, Kieran Long, for a conversation on “Built Unbuilt” at 6 pm.
Adress: Åsögatan 124, 116 24 Stockholm, Sweden


30 November, 2017 at 15:11

Book Launch_Email Invitation

Join Julien De Smedt and his partners at JDSA to celebrate the launch of their new book: BUILT UNBUILT. The monograph was photographed exclusively by Julien Lanoo, and the works will be on exhibition on Thursday December 14 at 394 Broadway (Between White & Walker) from 6-9pm. Party to follow from 9pm to late.

JDS X INK open doors & free drinks

7 September, 2017 at 16:14


This Friday September 8th, we’re welcoming a new neighbour, INK, with a shared open office and drinks.
For the occasion, we jointly made a limited t-shirt collection.
Join us around a drink from 6pm to 11pm, 34b rue de la Senne, 1000 Brussels.
The event will coincide with the neighbouring exhibition opening at the MAD, just a few minutes walk away.


23 August, 2017 at 13:26


JDSA’s founder, Julien De Smedt, will lecture this Thursday 24th of August, at the Bagiska Veckan in Bagarmossen, Stockholm.
The lecture will take place at Folkets Hus, Lillåvägen 44, 128 45 Bagarmossen
at 19.00.

From the organisers’ program:
The City of Tomorrow
Efter att ha designat byggnader och urbana utrymmen i fler än 40 olika länder, bor arkitekten Julien De Smedt nu i Bagarmossen och etablerar sitt kontor i Stockholm.
Ett föredrag om hur engagemang med den sociala arkitekturen och platsens historia kan kombineras med ett samtida och pragmatiskt förhållningssätt till samhället, som åstadkommer en s.k triple bottom line, hållbart resultat; resursmedvetenhet möter ekonomisk effektivitet som leder till ett blomstrande samhälle.

The City of Tomorrow
After designing buildings or urban spaces in over 40 different countries, Julien De Smedt now lives in Bagarmossen and establishes his office in Stockholm. He will show us how his ideas to engage with local communities and the history of a place can be combined with a contemporary and pragmatic approach to society that achieves a triple bottom line outcome: resource consciousness, meets financial efficiency turns into social blossoming.

more info on



2 August, 2017 at 20:20

Our Brussels office is expanding as we venture towards a number of exciting cultural, residential and mixed-use projects.
We are seeking talented profiles (architects of all levels, interns, admin assistant) to join our dynamic and international team.
Detailed job descriptions and information on how to apply can be found on


6 April, 2017 at 15:08

news_jdsshortlistedinmanila_01JDS has been shortlisted for designing an iconic building that is distinctive and recognizable, and will represent Bonifacio Global City in Philippines. It is envisioned that the building will promote and uphold Filipino ideals through intricate and unique architectural design.



3 April, 2017 at 14:29

news_jdslectureinmalina_01Exhilarating program of the architecture & design Anthology Festival 2017 where Julien will give the closing keynote on April 2nd at 3.30pm, at the Puerta del Parian in Intramuros, Manila, Philippines.



15 March, 2017 at 15:19


Dear friends, we’ve been selected as finalists for this year Architizer A+ Awards in the Commercial/office High-Rise category for our Project H in Hangzhou.
the project has a very particular attribute for such a commercial category: it has been thought through as a way to re-enact a historical public connection between an existing market square and another public space originally thriving with local life. Our site would have severed that connection. Instead of maximizing sell-able surfaces we convinced the client that this community link would be important to bring back to a neighborhood that has suffered tremendous changes through recent times.
We’re here in competition against some of the biggest corporate firms that often have a tendency to disregard these kind of concerns.
If you believe, like we do, that commercial programs should be sensitive to contextual and historical matters, VOTE for us here:




13 March, 2017 at 19:38


Kagithane Gardens is a business district that focuses on the user’s working and living qualities. The building brings a new form of contextual and urban approach to Istanbul: it is formed by our desire to make it interact with its environment. It opens itself up to the neighborhood by offering public plazas, intimate gardens and generous terraces to users and passersby. The volume of the block is carved out to invite the surroundings in. The local hilly landscape, characteristic to Istanbul, is mirrored both in the plan and section of the volume by curving along the sites edges and weaving into gently curved slopes, echoing the nearby Bosphorus waves.

On the ground floor the vibrant commercial life bursts out onto the plazas and the landscape. On the upper levels the offices open out onto the green terraces, populated with lush vegetation, providing a cooling system during hot springs and summers. The volume reads clearly while still opening itself generously to the city from a far. As one gets closer the interiors become more discreet, protected by louvers that help shade from the sun.
The project acts as a catalyst of business life for a new Istanbul, that promotes contemporary culture, architecture and lifestyle. Our building offers interaction between inside and outside and provides flexible plans that can be adapted to accommodate the workspace needs of all types of businesses, whether it be a small one-man show or a large corporate office. We believe life is plural and various entities should coexist and exchange their experiences. The Kagithane Gardens is where such a rich diversity can find its place.