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To date, Firma L4 has completed almost 5,000 different projects. Thanks to its professional team of engineers and experience accumulated over many years, we will find a solution for the implementation of every project. Complex projects are our breakfast of champions!

  • Over 1600 satisfied clients in the private and public sector

  • Over 60 experienced construction specialists and environmental science experts

  • Over 20 different types of construction services

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Expert examination and construction supervision of the construction project “Construction of a Modular Extension of the Baloži Secondary School and Reconstruction of the Sports Field”
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Construction supervision of construction works “Construction of a boathouse/boatshed at the Seaside Open-Air Museum in Ventspils”
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Reconstruction of the educational building at Dakteru Street 27, Smiltene
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Construction of the Ogre Central Library
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Science and Innovation Centre Vizium at Rūpniecības Street 2, Ventspils
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Reconstruction of Roņu Street in Liepāja (stage 1)
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Restoration of the North Pier in Ventspils
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Supervision of construction works “Restoration of the road overpass, pedestrian and bicycle path construction works and deformation joints in Sigulda”
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Construction supervision and engineering services in the project “Design and construction of water supply and sewerage networks and systems in Bauska”
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Construction supervision involving extension of a runway and reconstruction of lighting systems at Riga International Airport
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Restoration and reconstruction of Mrs. Hoijer’s guest house into a museum building in Kungu Quarter, Liepāja
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Construction supervision of the construction of a new retail, office and residential building at Elizabetes Street 39, Riga
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Construction supervision of the modernisation of alarm, telecommunications and power supply systems of the railway section from Bolderāja 1 – Zasulauks and contract management
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Design and field supervision services for the internal water mains, sewerage and rainwater drainage section of the Patollo Shopping Centre building at Blaumaņa Street 8 and 10, and Dzirnavu Street 65, 67 and 69, Riga
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Development of a construction project “Construction of a rainwater collection and drainage system in Bauska”
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Development of a construction project and preparation of procurement documentation for the project “Development of water management services in the City of Valmiera, Stage II”
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Development of a construction project for a textile product factory at Melnezera Street 3, Tukums
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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
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Development of a construction project for the conversion of a building into a hotel at Kaļķu Street 20, Riga
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Development of the construction project “Reconstruction of Zirņu Street – Ganību Street and Construction of a Connection to Zemnieku Street (Southern Connection to the Port of Liepāja)”
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Development of the design for the grid reconstructing the Kurzeme Ring 330 kV and 110 kV power transmission network connection and preparation of the related environmental impact assessment
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Engineering services for the 2nd stage of reconstruction of Riga TEC-2
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Legal consulting in regard to implementation of an EU Cohesion Fund co-financed project “Infrastructure Development at Krievu Isles for Relocation of Port Activities from the City Centre”
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Reconstruction and restoration of the Bank of Latvia’s office building at K. Valdemāra Street 1b, Riga
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Reconstruction of a 10/6/0,4kV grid in the neighbourhood of Tvaika Street, Sliežu Street, Gaujienas Street, Sarkandaugavas Street, Lāpstu Street, and Ziemeļu Street in Riga. Dismantling of FP72 and reconstruction of TP795 and TP494.
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Salu Bridge and traffic flyover renovation project
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Supervision of the construction of a 14 MW Biomass Boiler House at Rietumu Street 1, Ogre
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Supervision of the construction of a new building at the Talsi branch of SIA Ziemeļkurzemes reģionālā slimnīca at Stendes Street 1, Talsi, Talsi District
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Supervision of the construction of Bolderāja 2 Station with a connecting tract to the Krievu Isle terminals and contract management
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Supervision of the construction of the 1st stage of the Southern Bridge over the Daugava in Riga with access lanes, supervision of the construction of the 2nd stage of the Southern Bridge – right bank access lanes; and supervision of the construction of the 3rd stage of the Southern Bridge (section from Bauskas Street to Ziepniekkalna Street)
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Technical monitoring at the Galleria Riga Shopping Centre, Dzirnavu Street 67, Riga
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Conducting construction supervision in the facility “Reconstruction of the Mūsa bridge, stage 2 in Bauska, Bauska County”
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Construction intention documentation, construction project development and author supervision in the facility “Construction of the TRADOC Infantry School’s Car Park at Lāčplēša Street 1, Alūksne, Alūksne County”
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Construction supervision for construction works of the swimming pool of the Sports School of Limbaži and Salacgrīva County at Jaunatnes Street 4A, Limbaži
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Construction supervision for the new construction of an office building at Pērnavas Street 83, Riga
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Construction supervision of the pedestrian and bicycle path and bridge over the Gauja river in Carnikava County
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Construction supervision of the reconstruction of the Sigulda Culture Centre
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Construction supervision of the Ventspils Music Secondary School with the function of a concert hall
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Consulting and construction supervision services in the project “Reconstruction of Gaujas Street A, Ādaži”
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Development and author supervision of construction projects for reconstruction necessary to improve the learning environment of educational institutions in Carnikava County
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Development, author supervision and construction of the construction project “Reconstruction of the Multi-Apartment Residential Building at Daugavas Street 7A, Smiltene”
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Execution of construction supervision works in the facility “Renovation of the South Pier of Freeport of Ventspils”
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Expert examination and construction supervision of the construction project “Complex of Multi-Apartment Buildings at Bezdelīgu Street 5, Riga”
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Expert examination and construction supervision of the construction project “Construction of a Solar Collector System with a Thermal Energy Storage Tank and a Biomass Boiler House with a Capacity of 3 MW”
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Expert examination and construction supervision of the construction project “Jēkabpils Multifunctional Sports Hall New Construction at Brīvības Street 289 B, Jēkabpils”
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New open-air stage at Jūras Street 3A, Carnikava
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Supervision of construction works for the reconstruction of the Abava bridge, road P120 Talsi – Stende – Kuldīga 33.18 km
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Supervision of construction works for the reconstruction of the State regional road P120 Talsi – Stende – Kuldīga km 1.56 – 10.91
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Supervision of construction works on the reconstruction of the section km 60.20 – 79.45 of the State main road A3 Inčukalns – Valmiera – Estonian border (Valka)
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Expert examination of “New Construction and Reconstruction of the RIMI Warehouse Complex and Office Building”
View the complete list of projects

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