Tenders Are Invited For Architectural, Construction, Engineering And Inspection Services – Basic Improvement Of The Leijona Quarter, Cost Calculation Service

Architectural, Construction, Engineering And Inspection Services – Basic Improvement Of The Leijona Quarter, Cost Calculation Service. The Object Of The Procurement Is The Cost Calculation Service For The Basic Improvement Of The Leijona Block, Which Will Be Implemented In The Estimated Period Of 2026 - 2031. The Tasks Of Cost Accounting Include The Preparation Of Calculations Of Target Costs And Contract Price Forecasts, Including Breakdowns, Needed During The Planning And Construction Of The Project. The Buildings Located In The Leijona Quarter Are Helsinki City Hall, Address Pohjoisesplanadi 11–13, And Bocks House And Burtz-Hellenius House, Address Aleksanterinkatu 20-24. Helsinki City Hall Was Originally Completed As A Hotel (Seurahuone) In 1833. In The 19Th Century, The Building Went Through Several Changes As The Demands Of The Operation Increased. The Town Hall Was Modernized And Repaired According To The Plans Of Architect Aarno Ruusuvuore Between 1965 And 1970, So That All Internal Structures And Parts Were Rebuilt In Concrete. Only The Facades And The Ballroom Still Date From The 19Th Century. In The Years 1985-1988, The Town Hall Was Expanded Into The Courtyard With A Council Building Designed By Aarno Ruusuvuori. Since Then, The Town Hall Has Undergone Several Technical Improvements And Functional Changes In The 1990S And 2000S. Bocks House Was Built In 1763, Its Katariinakatu Wing In The 1760S And The West Wing In 1819. Bocks House Was Raised In 1819 And 1933. All The Interiors Of Bocks House Were Renovated In The 1980S. Burtzs House Was Built Around 1775 And Raised In 1926, And The Courtyard Extension Was Built In Several Different Phases. All The Interiors Of The Burtz House Were Renovated In The 1980S. The Hellenius House Was Built In The 1760S And Expanded And Raised In 1835 And 1926. All The Interiors Of The Hellenius House Were Renovated In The 1980S. The More Detailed Content Of The Procurement Is Described In The Tender Documents Attached To The Procurement Notice.