# SESTRA — Engineering and Architecture at the service of society.

> SESTRA is an engineering and architecture firm based in San Sebastián (Spain) with more than 2,500 projects and site supervisions in civil works, hydraulics, ports, architecture and urban planning since 1986.

At SESTRA we develop civil engineering and architecture projects with technical rigour, an integrated vision and a commitment to the viability of every intervention.

We work for public authorities, companies and private clients, supporting each project from the initial analysis and technical planning through to construction, site supervision and final follow-up.

From Gipuzkoa, we take part in local, national and international projects, adapting to the regulatory, functional, construction and economic constraints of each context. Our way of working combines technical solvency, multidisciplinary coordination and a close, responsible relationship with every client, developer and stakeholder.

The SESTRA team brings together highly experienced professionals and technical staff specialised in different disciplines, allowing us to take on civil works, architecture, urban planning, hydraulic works and technical assistance projects with confidence. In every commission we look for precise, efficient and proportionate solutions, with attention to detail, schedule control and a commitment to quality.

We understand engineering and architecture as disciplines at the service of people, the territory and the proper functioning of infrastructure and built spaces. That is why we develop projects that not only solve technical needs but also deliver value, durability and long-term usefulness.

## Who we are

- **40** years of experience — Founded in 1986
- **+2.500** projects and site supervisions — Civil engineering and architecture
- **3** continents — Europe, Africa and the Americas
- **5** certifications — ISO 9001 · 14001 · 45001 · Efitecnic · Emakunde

## Areas of work

### [Civil engineering](https://sestra.es/en/areas/civil-engineering/)

With a long track record in civil works, SESTRA undertakes all kinds of projects in this field, having delivered numerous major interventions in linear works (roads, railways, cycle lanes), road interchanges, urban mobility schemes, urban development and stabilisation and retaining works, both in Spain for provincial and local authorities and internationally.

### [Hydraulics, ports & coasts](https://sestra.es/en/areas/hydraulics-ports-coasts/)

SESTRA has a team of engineers and technicians specialised in hydraulics that has allowed us to undertake ambitious water supply and sanitation, pumping, channelling and storage projects for many authorities and institutions, giving us extensive experience in this field and the ability to deliver any kind of related work.

### [Architecture & urban planning](https://sestra.es/en/areas/architecture-urban-planning/)

SESTRA’s team of architects and building engineers has been designing industrial, residential and public buildings for decades, often starting from the initial urban planning stage and carrying each project through to construction and site supervision.


## Featured projects

- [Replacement of the Gabolats bridge in Soraluze](https://sestra.es/en/projects/proyecto-de-sustitucion-del-puente-gabolats-en-soraluze/) — Civil engineering, Soraluze, Gipuzkoa
- [Urban development of AOU 6 – Olatzar (Lezo)](https://sestra.es/en/projects/urbanizacion-del-aou-6-olatzar-lezo/) — Civil engineering, Lezo, Gipuzkoa
- [Marrutxipi junction on the GI-20 San Sebastián bypass](https://sestra.es/en/projects/enlace-de-marrutxipi-en-la-gi-20-variante-de-san-sebastian/) — Civil engineering, Donostia-San Sebastián, Gipuzkoa
- [North Tarrant Expressway, Fort Worth, Texas](https://sestra.es/en/projects/north-tarrant-expressway-fort-worth-texas/) — Civil engineering, Fort Worth, Texas, EE. UU.
- [Phase 1 – Viaduct over the Obetsebi Lamptey interchange, Ghana](https://sestra.es/en/projects/fase-1-viaducto-sobre-el-intercambiador-obetsebi-lamptey-ghana/) — Civil engineering, Accra, Ghana
- [Travelift extension at Hondarribia marina](https://sestra.es/en/projects/ampliacion-del-travelift-del-puerto-deportivo-de-hondarribia/) — Hydraulics, ports & coasts, Hondarribia, Gipuzkoa
- [Labegaraieta sports centre](https://sestra.es/en/projects/polideportivo-labegaraieta/) — Architecture & urban planning, Bergara, Gipuzkoa
- [Olatzar private housing (Lezo)](https://sestra.es/en/projects/viviendas-libres-olatzar-lezo/) — Architecture & urban planning, Lezo, Gipuzkoa

## Where we work

We work on local, national and international projects: roads, interchanges and civil works around the world.

## Commitment to quality and equality

Since 2008 we have worked under an Integrated Quality System covering quality assurance, environmental management, occupational health and safety, and efficiency.

ISO 9001:2015 · ISO 14001:2015 · ISO 45001:2023 · Efitecnic

## FAQ

### What kind of projects does SESTRA deliver?

SESTRA delivers design and site supervision for civil engineering (roads, interchanges, railways, cycle lanes, urban development, slope stabilisation), hydraulic works, ports and coasts (water supply, sewerage, pumping, channelling, tanks, breakwaters) and architecture and urban planning (industrial, residential and public buildings, and urban planning).

### Who does SESTRA work for?

Public authorities (Basque Government, provincial councils, town councils, water agencies, Bidegi, ETS…), companies and private clients. We support each project from the initial analysis to site supervision and final follow-up.

### Where is SESTRA based and where does it work?

Our office is at Zuatzu Kalea 2, Donostia-San Sebastián (Gipuzkoa, Spain). We work at local, regional and national level, and we have also taken part in international projects in Africa and the Americas.

### Which certifications does SESTRA hold?

We have an Integrated Management System certified to ISO 9001 (quality), ISO 14001 (environment) and ISO 45001 (occupational health and safety), plus Efitecnic, and we are an Emakunde Collaborating Entity for Equality between Women and Men.

### How can I work or do an internship at SESTRA?

Send us your CV through the “Join us” page. We regularly collaborate with universities and vocational schools in engineering, architecture and drafting.

## Contact

- Sestra Ingeniería y Arquitectura, S.L. (NIF B20871596)
- Zuatzu Kalea 2, Edif. Igeldo, Of. 10-11, 20018 Donostia-San Sebastián (Gipuzkoa)
- Tel: +34 943 31 66 55
- Email: sestra@sestra.es
- Web: https://sestra.es/en/


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