Roh-bau construction prices per m² in Istria
Roh-bau house construction in Istria starts from €450 per m² of gross floor area in the supplied Tecton price schedule. The actual scope must be agreed: a structural rate does not automatically include every roof layer, service connection or finished external surface. Indicative prices excluding VAT; the final price is confirmed after a site inspection and preparation of an itemised bill of quantities.
Which indicative work rates are available?
| Work item | Price excluding VAT |
|---|---|
| Foundation concrete | 170.00 € / m³Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Reinforced concrete walls | 175.00 € / m³Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Reinforced concrete slabs | 180.00 € / m³Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Watertight concrete for stairs / pools | 185.00 € / m³Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Foundation, wall and slab formwork | 30.00 € / m²Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Beam and column formwork | 35.00 € / m²Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| Stair formwork | 60.00 € / m²Indicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| B500B reinforcement, supply and installation | 2.00 € / kgIndicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
| House shell per gross floor area | from 450.00 € / m² gross floor areaIndicative prices excluding VAT; the final price is established after a site visit and preparation of a bill of quantities. |
What does roh-bau mean in a written offer?
Roh-bau is a useful shorthand for structural construction, but it is not a substitute for an itemised scope. Foundations, reinforced-concrete elements, masonry, stairs and the roof must each be described. The offer should show whether it includes site preparation, excavation, waterproofing details, roof insulation or only selected structural work. Different contractors may stop at different stages. Establish a common endpoint before comparing their rates, and make sure that the drawings and the bill of quantities describe the same version of the building.
How are concrete, reinforcement and formwork measured?
Concrete is measured by volume, reinforcement by weight and formwork by the area of the relevant contact surfaces. These quantities are related but not interchangeable. A slab’s floor area is not the same quantity as its concrete volume, and a gross-floor-area rate cannot reveal how much steel the structural design requires. Ask for the quantity source and the measurement rule. The engineer’s design governs the required structure; quantities must not be reduced simply to make a price per square metre appear lower.
The supplied indicative concrete prices are €170/m³ for foundations, €175/m³ for reinforced-concrete walls, €180/m³ for reinforced-concrete slabs and €185/m³ for the specified stair or waterproof-pool concrete item. They are separate items and cannot be treated as complete structural-element costs. Indicative prices excluding VAT; the final price is confirmed after a site inspection and preparation of an itemised bill of quantities.
What should the reinforcement and formwork prices include?
The supplied schedule lists B500B reinforcement supply and installation at €2.00/kg. Formwork is €30/m² for foundations, walls and slabs, €35/m² for beams and columns, and €60/m² for stairs. The exact measurement and scope require confirmation before publication of a binding offer. Indicative prices excluding VAT; the final price is confirmed after a site inspection and preparation of an itemised bill of quantities.
When reviewing these items, clarify cutting, bending, positioning, spacers, access and the handling of complex details. For formwork, identify the measured surfaces, geometry and required finish. Do not add a concrete-only item to an assumed floor area and call the result a complete slab price. The complete element also depends on its design, associated materials, labour and the work expressly included in the quotation.
Why do Poreč, Umag and Rovinj quotes need site details?
The town name alone does not establish the price of structural works. Delivery access, storage space, the plot’s levels and the organisation of concrete placement need to be reviewed for the specific location. Ask how excavated material will be handled and where machinery can work. If a property is close to existing buildings, the design and method need suitable professional assessment. Any seasonal or access restrictions should be checked for the actual address and intended dates rather than assumed from a generic statement about Istria.
Is the roof part of the structural package?
The roof needs its own written inclusion list. A roof structure, a covered roof and a complete insulated roof are different scopes. Check the structure, sheathing if specified, membranes, insulation, battens, covering and metalwork separately. Drainage, roof openings, penetrations and junctions require coordinated details. If the package stops before a later roof layer, record who takes over and how the unfinished work is protected. A structural offer should not leave these interfaces unresolved behind the phrase “roof included”.
How do you avoid omissions and double counting?
Review the bill of quantities by building element and by construction stage. Check that the same excavation, access provision or concrete placement has not appeared in multiple packages, while essential work has not been omitted between them. Mark separately procured materials and any work by another contractor. Compare the drawing reference, quantity, unit and specification for each item. Clarify whether the quoted rate is fixed for the stated conditions or depends on measured quantities. These checks make different totals understandable without changing the engineer’s design.
What should be agreed before structural work starts?
The agreement should identify approved drawings, the construction scope, responsibility for procurement and the process for accepting work at the next stage. Payment arrangements, variations and completion records also need a defined procedure. Ask what evidence will be available for work that later becomes concealed, and who must inspect it before the next operation. A contractor’s photographs can support communication, but they do not replace the duties of appointed designers and supervision professionals. Confirm the programme only after the scope and site assumptions are clear.
Which documents help produce a comparable roh-bau offer?
Send architectural plans, sections, structural drawings and the current bill of quantities, together with the plot location and photographs of access. State the gross floor area used in your project and the exact stage you want to reach. Identify any materials you intend to buy directly. Tecton offers roh-bau construction across Istria; a useful enquiry explains the intended scope and unresolved points rather than asking for an all-inclusive structural commitment from floor area alone.
Which services, locations and projects should you explore?
What else should you clarify before starting?
Can I compare two rates per square metre directly?
Only if the area definition, structural scope, roof endpoint and procurement responsibilities match. Otherwise compare the itemised offers first and ask each contractor to identify missing or additional work against the same documents.
Is gross floor area the same as usable area?
No. They use different measurement boundaries. Use the project’s documented area schedule and make the basis explicit in the offer. Do not apply a generic conversion percentage between net and gross area.
Does concrete pricing include the whole slab?
A concrete item is not a complete slab. The designed slab can also require reinforcement, formwork and other expressly specified operations. Check all related quantities and inclusions before drawing a conclusion about the element’s total cost.
Can the investor buy concrete or steel directly?
That can be discussed as a procurement arrangement. The written offer should identify responsibility for orders, conformity, delivery timing, unloading and payment, so the contractor’s scope and the investor’s purchases do not overlap or leave gaps.
Is every type of ground included in excavation?
Ground conditions, access and the handling of excavated material must be assessed for the site. A generic excavation item should not be taken as confirmation of every possible condition or disposal requirement.
How do I request an assessment?
Send the location, available drawings, gross floor area and your intended structural endpoint. If you already have a bill of quantities, attach it so that the discussion can focus on quantities, inclusions and the practical conditions of the project.
How can you request a free initial assessment?
Send the location, scope and approximate area. A detailed bill of quantities and final quotation depend on documents and a site review; the scope of that work is agreed separately.