Architecture and interior design · Barcelona and Catalonia · Since 2017
Your building could be worth much more.
Architecture and design that raise the value of your investment: fast-moving permits, distinctive interiors and construction at a fixed time and cost.
We work for
Those who want to turn an obsolete building into a unique, high-performing asset.
- Investors
- Foundations and institutions
- Owners
- Companies
Trusted by
From due diligence to handover
Every phase has its risk. We solve it before it costs you money.
- 01
Feasibility
The problemYou don't know whether what you want is possible in that building, or whether the deal will pay off.
How we solve itWe identify technical risks, assess the investment cost, check planning and legal compliance and set the timeline for the whole process.
Start here → - 02
Design
The problemThe permit never arrives or the heritage authority blocks the project. Every month is return you aren't earning, and your thesis starts to wobble.
How we solve itA design built in 3D so you can experience it before it is built, detailed in BIM and with the building permit granted.
Start here → - 03
Construction
The problemWorks drag on, the budget spirals and nobody gives you clear answers.
How we solve itTime, cost and build quality under control, with a weekly report and a single point of contact.
Start here → - 04
Handover
The problemWorks are finished, but certificates and sign-offs are missing: the building can't open.
How we solve itWe process certificates and sign-offs during construction. The building is fitted out and ready to operate, let or sell the day works finish.
Start here →
Success story
Listed 1910 buildingIESE Business School
A half-used building turned into offices for 50 people. Twice the rent, restoring the building to its original heritage state.
-
01Starting point
With no activity licence, 30% of the floor area did not meet regulations and could not be used. -
02Transformation
Due diligence to set cost, timelines, permits and capacity. Building permit with the heritage authority and construction at a fixed price and timeline with the builder. -
03Result
Offices for 50 people with new building services, smart controls and heat-recovery ventilation. More insulation, original flooring restored and a better energy rating.
x2€
Annual rentTwice as much as before
+49%
Usable areaFrom 500 to 743 m²
+30p
WorkstationsFrom 20 to 50 people
Planning and heritage in Catalonia
Faster permits. Higher returns.
Phased permitsPermitting strategyWe know which permits to apply for and in what order. We split the application into parts that move in parallel, instead of one single permit that blocks everything.
How the file travelsFrom ECA review to the city councilWe know how a project moves from the ECA's review until the city council assigns it to its departments. So we plan timelines and strategy from day one.
Heritage, no surprisesExperience with listed buildingsWe know what the heritage authority accepts, what it rejects and what can be negotiated. Before you buy a building, we tell you whether your project can be done.
Ready the day works finishSign-offs in parallelDuring construction we process the legalisations, electrical certificates and other permits. Any requests surface while works are under way, when the builder can solve them fast. The building is ready to operate, let or sell the day works finish.
Free consultation · 30 min with a partner
Your first feasibility check, in 30 minutes.
A partner architect reviews your building or idea and tells you whether it is feasible, what the risks are and how to move on to a due diligence.
Who we are
15+ yearsOf experience in architecture, interior design and construction
100+Projects delivered
€36M+Of construction managed
30,000+ m²Transformed in distinctive buildings
One point of contact. A full team behind it.
You deal with one person from start to finish. Behind them, a team of 12 in Barcelona: architects, interior designers and 3D modellers, backed by a trusted engineer, building surveyor and contractor. We design, secure permits and manage construction, from the first visit to handover.
Meet the team →
Nacho VallhonratArchitect, co-founding partnerDirector of Strategy and AcquisitionLecturer at the UIC School of Architecture
Pablo NotarioArchitect, co-founding partnerDirector of Operations and FinanceLecturer at the UIC School of Architecture
Iñigo UgaldePhD architect, partnerQuality DirectorDirector of the UIC School of Architecture
Real Google reviews
What our clients say
“Buscábamos un estudio de arquitectura en Barcelona para la reforma integral de nuestro Flexliving y el equipo de DTRES superó nuestras expectativas. Entendieron perfectamente cómo reflejar nuestros valores en el espacio. Se encargaron de todo, desde el interiorismo hasta la gestión de licencias, cumpliendo con los plazos de entrega y costes objetivo.”
“He tenido la suerte de poder colaborar con ellos en el proceso de reforma de un hotel. Su profesionalidad y seguimiento hicieron que quisiera seguir trabajando con ellos. En ambos casos me han aportado tranquilidad, escucha activa y profesionalidad, algo que por desgracia, hoy en día, no es fácil de encontrar.”
“They manage the entire process end-to-end, from initial ideation and design to project planning and final execution. What truly sets them apart is their style, which uniquely blends a modern aesthetic with the authentic spirit of Barcelona.”
More transformations
See all projects →
Senior residence · 716 m²
Associació Cultural Carena
Showroom and offices · 800 m²
Papiol
University hall · 1,500 m²
Colegio Mayor Universitario Pedralbes
Hotel · 1,000 m²
Le Mirath · Cairo
Youth club · 1,800 m²
Associació Cultural CarenaFAQ
Before transforming a building
How do you work with a fund or investor before the purchase?
We run due diligence alongside the negotiation. Within a few weeks you know what the building allows, what it costs to transform and how long it takes, with a clear conclusion: buy, negotiate or walk away. If you do not buy, you have only invested in that phase.
What sets you apart from a conventional architecture firm?
A single point of contact from due diligence to handover. Design, interiors, permits, construction and FF&E in one team, with no change of lead between phases and nothing lost along the way.
How do you control construction cost and time?
We fix the price with the contractor before starting, based on a complete detailed design. During construction, the owner receives a weekly report on progress, cost and pending decisions.
Do you work with listed buildings?
Yes, it is our speciality. In Barcelona, works on buildings in the Heritage Catalogue may require a prior report from the City Council, which can be favourable, favourable with conditions or unfavourable. We prepare the pre-consultation and the design to secure a favourable report, as at IESE, Vila Regina and Lesseps.
Can I hire you for just one phase?
Yes. You can start with feasibility, design, construction or FF&E and handover, and we stay with you to the end.
Free consultation · 30 min with a partner
Do you have a building that could perform far better?
Tell us which building you own, or want to buy, and what you want to achieve. We will tell you what is possible, what it may cost and where to start.
Prefer to talk now? Message us on WhatsApp →