Firma L4 is one of Latvia’s leading consulting engineering firms with 30 years’ experience in design, construction supervision and engineering consulting.
We build safe foundations for tomorrow!
3 reasons
Why clients choose to work with us:
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Solutions
We create unique and sustainable solutions in even the most complex situations.
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Experience
We ensure continually high quality.
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People
We employ experienced specialists highly rated within the industry.
Awards
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1st place
Dispatch Control and Data Centre Jāņciems, Riga, Latvia
Most Sustainable Project – Public building
Sustainability in Architecture, Construction and Design in Baltics 2026 -
2nd place
Reconstruction of the Jēkabpils city flood protection embankment in Jēkabpils, Latvia
Most Sustainable Landscaping
Sustainability in Architecture, Construction and Design in Baltics 2026 -
3rd place
Development of Kovši Lake Park, Rezekne, Latvia
Most Sustainable Landscaping
Sustainability in Architecture, Construction and Design in Baltics 2026 -
Grand prix
Reconstruction of the Jēkabpils Flood Protection Embankment
Grand prix
Latvian Construction Award in 2025 -
1st place
Delska Data Centre EU North Riga LV DC1 at 17 Čuibes Street, Riga
Production Facility, Industrial Building
Latvian Construction Award in 2025 -
2nd place
Bridge over the River Gauja on the Drusti Station–Zosēni Section
New Engineering Structure
Latvian Construction Award in 2025 -
2nd place
Construction of the New Gemoss Warehouse Building at 75A Mūkusalas Street, Riga
Production Facility, Industrial Building
Latvian Construction Award in 2025 -
Grand prix
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1st place
Stage 1 of the Skanste Area Revitalisation, Riga
Territory Improvement - Landscaping
Latvian Construction Award in 2024 -
3rd place
Construction of a Stormwater Drainage System in Salaspils
New Engineering Structure
Latvian Construction Award in 2024 -
3rd place
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Recognition
Multifunctional Building of the Seaside Open-Air Museum at 2 Riņķa Street, Ventspils
New Public Building
Latvian Construction Award in 2024 -
1st place
General Radziņ waterfront in the center of Riga
Sustainable Landscaping
The Baltic award for sustainability in architecture, construction, design 2024 -
2nd place
Elemental Business Centr
Sustainable Building
The Baltic award for sustainability in architecture, construction, design 2024 -
1st Place
Civil Engineering
Ķekava Bypass E67/A7 Riga – Bauska – Lithuania Border, 7.9 – 25 km
Best Building in Latvia in 2023 -
2nd Place
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3rd Place
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3rd Place
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3rd Place
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1st Place
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2nd place
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1st place
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Acknowledgement
Shop chain LIDL Trade building at Duntes street 25, Riga
New construction, public building
Latvian Construction Award in 2023 -
1st place
Development of a construction project for construction of a section of track at the Biķernieki Complex Sports Base Competition Track at Sergeja Eizenšteina Street 2, Riga
Rebuilding of the engineering structure
Latvian Construction Award in 2016 -
3rd place
Alojas Regional Business Support Center - Library "SALA"
Public building
The Best Construction of the Year in Latvia in 2016 -
1st place
Construction of Bolderāja 2 Station with a connecting tract to the Krievu Isle terminals
New engineering structure
Latvian Construction Annual Award 2014 -
2nd place
Pedestrian bridge with bicycle path in Carnikava
New engineering structure
Latvian Construction Annual Award 2014 -
1st place
Mūsa bridge in Bauska
Reconstruction of engineering structure
Latvian Construction Annual Award 2014 -
3rd place
Reconstruction of the Ūdens street and Ezera promenade, construction of pedestrians and bicycle paths around the Talsi lake in the historic center of Talsi
Public outdoor object
Best building in Latvia in 2013 -
2nd place
Reconstruction of Zirņu-Ganību street and connection to Zemnieku street (Southern connection to port Liepāja )
Engineering structure
Best Building in Latvia in 2012 -
1st place
Southern bridge over the Daugava, 1st stage in Riga
Electric installation works
The Best Construction Building of the Year in Latvia in 2008