OSQB turns ideas into reality and brings them to life. Acting as a guide, we support our clients throughout the construction process and act as the link between the client, the contractor and the architect.
From start to finish, we guide your project from concept to construction — keeping a close eye on timing, budget and feasibility
From preliminary studies through to formwork and reinforcement plans: stability guaranteed.
All technical installations, carefully designed and cleverly integrated
From start to finish, we guide your project from concept to construction — keeping a close eye on timing, budget and feasibility
Years of experience have shaped a reliable process, in which we always strive for close involvement and smooth communication throughout the entire process. Step by step, working together towards success!
OSQB is involved right from the initial sketches. This allows us to maintain a strong grasp of the concept and a complete overview of the project’s history. That way, we won’t have to go back and question everything later on.
We immediately assess the initial preliminary designs for accessibility, fire compartment requirements, (technical) shafts and the compliance of the staircases.
We provide support throughout the entire planning permission process: from initial consultations and administrative work to the final submission.
We draw up all the necessary budget estimates during the preliminary design phase. This ensures that both the architect and the client have a clear idea of what to expect.
Once the environmental permit has been submitted, we take the lead and develop the project into a complete tender dossier, in accordance with all regulations and structural requirements.
We produce the architect’s design in Revit in accordance with our standards and link it to the specifications and bill of quantities. This allows the designer to focus on the aesthetics, whilst we take care of the technical detailing. The model is built to LOD 350 and is practical for use by contractors and their subcontractors.
We work out all the technical construction details, taking into account aesthetics, energy performance requirements, budget and feasibility.
We draw up the full specifications and generate the bill of quantities from the Revit model. During the design phase, we can at any time provide a printout of the quantities from the BIM model, linked to the unit prices. This makes it easy to keep a close eye on the budget.
Where necessary, we organise the tender process with contractors and compile quotations into clear comparison tables to facilitate easy comparison and negotiations.
OSQB takes charge of all site follow-up: project kick-off, site meetings, site reports, systematic follow-up of action points and site inspections. At each meeting, we conduct a thorough site inspection, during which any issues are digitally recorded in Aproplan or LetsBuild, making them easily accessible to the contractors.
OSQB continues to play an active role in the construction process right through to provisional handover and final handover. You can also count on our expertise to provide the necessary support during these last two key stages.
08
BUILDING SPECIFICATION
07
06
05
LEAD
EXECUTIVE
PHASE
Years of experience have shaped a reliable process, in which we always strive for close involvement and smooth communication throughout the entire process. Step by step, working together towards success!
OSQB is involved right from the initial sketches. This allows us to maintain a strong grasp of the concept and a complete overview of the project’s history. That way, we won’t have to go back and question everything later on.
We immediately assess the initial preliminary designs for accessibility, fire compartment requirements, (technical) shafts and the compliance of the staircases.
We draw up all the necessary budget estimates during the preliminary design phase, so that the architect and client always know where they stand.
Once the environmental permit has been submitted, we take the lead and develop the project into a complete tender dossier, in accordance with all regulations and structural requirements.
We produce the architect’s design in Revit in accordance with our standards and link it to the specifications and bill of quantities. This allows the designer to focus on the aesthetics, whilst we take care of the technical detailing. The model is built to LOD 350 and is practical for use by contractors and their subcontractors.
We work out all the technical construction details, taking into account aesthetics, energy performance requirements, budget and feasibility, for contractors and their subcontractors.
We draw up the full specifications and generate the bill of quantities from the Revit model. During the design phase, we can provide a printout of the quantities from the BIM model linked to unit prices at any time. This ensures we maintain a clear overview of the budget at all times.
We take care of the price request from contractors if necessary. The collected quotesare compiled into a price comparison table. This is conveniently structured with subtotals per section to allow for a smooth comparison and/or negotiation.
OSQB takes charge of all site follow-up: project kick-off, site meetings, site reports, systematic follow-up of action points and site inspections. At each meeting, we conduct a thorough site inspection, during which any issues are digitally recorded in Aproplan or LetsBuild, making them easily accessible to the contractors.
We remain actively involved in the construction process right through to provisional and final handover. You can count on our guidance and support during these final stages as well.
07
LASTENBOEK
06
05
04
LEAD
IMPLEMENTATION
PHASE
In the initial stages of conceptual design and preliminary design, we do not focus on the designer’s aesthetic or architectural choices, but act as an advisory partner on fire safety, compartmentalisation, accessibility and other standards.
We also provide tailored advice on the impact on the building’s structure and technical systems. We offer support with the positioning and dimensions of shafts so that the designer can take these into account at an early stage.
We also prepare cost estimates for the client and architect, ensuring a clear overview of the costs at all times. As the project progresses towards the final design and planning application, we refine these estimates to minimise any unexpected costs. Tender documentation.
Once the planning application has been submitted, we take the lead and develop the project into a comprehensive tender document. We carry out a thorough structural review of the design: from the façade and roof structure to the floor structure.
Everything is tailored to meet energy performance, acoustic, structural and technical requirements, whilst maintaining a constant focus on the designer’s aesthetic vision. Within the budgetary constraints, we translate the concept and design into structurally sound construction details.
Once the structural details have been finalised, we model the entire project in Revit as a BIM-compatible 3D model with LOD 350. All building elements are linked to the specifications and bill of quantities.
During this phase too, we monitor the budget through systematic updates based on material choices. As structural stability and technical details are developed in-house, the BIM model ensures robust clash detection.
Following the tender process, we carry out a comprehensive comparison of the quotes received and advise the client on the selection of a contractor.
From preliminary studies through to formwork and reinforcement plans: structural integrity guaranteed.
Are you an architect looking for a structural engineering firm that thinks along with you and enhances your design without compromising on structural integrity? Then OSQB is your ideal partner. Our engineers understand architectural sensitivities, have an eye for aesthetics, and put structure at the service of the design.
It is not the architecture that adapts to the structure, but the other way round. This sometimes requires additional calculations — and we are happy to do so. Our engineers shape the structure until it meets the architect’s requirements, and we strive to create high-performance structures that enhance the design.
Based on the initial sketches or preliminary designs, we carry out a preliminary structural analysis of columns, beams, floors and foundations. This enables the architect to further refine the design.
We hold regular meetings with the architect to discuss any questions relating to structure and stability.
Once the structure has been finalised, we will work out all the details in calculations, formwork and reinforcement plans, specifications and a bill of quantities.
We advise architects and clients on the analysis of quotations to ensure the right balance between price and quality. During construction, we inspect, amongst other things, the reinforcement prior to the pouring of concrete foundations, beams, columns and floors. Only work of the highest standard passes our inspection.
We will visit the site on request to discuss matters, carry out inspections and assist the architect and client with the provisional handover. Once the structural work has been completed, we will provide the full as-built documentation.
Why entrust stability studies to OSQB?
OSQB makes your job as an architect easier. Our engineers develop hand-drawn sketches and pen-and-ink plans with clear annotations, giving you a quick and clear overview of the structural elements as you finalise your design.
We carefully coordinate the structural work and the technical installations to ensure that interdisciplinary collaboration on site runs smoothly.
From the preliminary design stage onwards, we assist with cost estimates, which we systematically refine as we move towards the final design and tendering process — ensuring the budget remains under control.
All technical installations, carefully designed and cleverly integrated.
Buildings are becoming increasingly complex, and building services are playing an ever-greater role in this. This
evolution presents opportunities, but also brings with it higher demands and costs. Today, building services
often account for up to 30% of the construction budget, and as much as 75% of operating and maintenance costs.
That is why a well-thought-out approach is crucial. At OSQB, you can count on a partner
who listens, guides and thinks ahead. With our experience in residential construction, industry,
healthcare, hotels, public buildings and more, we provide a comprehensive and well-thought-out
service.
We zijn graag vanaf de start betrokken, zodat we de wensen van de bouwheer kunnen
vertalen naar comfortabele, performante oplossingen binnen het vooropgestelde budget.
Als architect kan je rekenen op volledige ontzorging: we stemmen technieken af op de
ontwerpvisie en werken oplossingsgericht samen aan een coherent geheel binnen de geldende normering.
A successful building starts with understanding the client’s wishes and expectations. That is why we begin with a detailed questionnaire for the client and architect, which forms the basis for the necessary building services.
All possible needs are covered, including:
Once we have analysed the questionnaires, we will begin a feasibility study. This will help us make informed choices between the available technologies, as heating and cooling systems, for example, have a significant impact on both investment costs and energy consumption.
Een helder inzicht in kosten en prestaties is essentieel. We nemen hierin een adviserende rol op en begeleiden de klant bij het beantwoorden van complexe vragen en het maken van doordachte keuzes. Daarbij helpen we ook bij het inschatten van de return on investment, zodat klanten een duidelijk beeld krijgen van de financiële en energetische meerwaarde op lange termijn.
During the preliminary design phase, we define the technical concept: the choice of energy source and systems. We provide the architect with a dossier that is as comprehensive as possible, containing core details, layouts and specifications for pipes and ducts, all in line with the EPB assessor’s requirements and relevant regulations.
We also specify where shafts are required and what dimensions are needed, whilst ensuring
the most efficient use of space possible. This allows the architect to incorporate this information at an early stage into the architectural vision.
In the final design, the technical systems take their final form. Technical rooms are
fully detailed, and pipes and ducts are drawn out and coordinated with the structural engineer.
Any conflicts with the structural framework are addressed in a solution-oriented manner. Clash detection using the 3D model in Revit prevents the need for modifications during construction and ensures clarity for both the architect and the contractor.
For the tender process, we provide the full tender documentation, including plans, a bill of quantities and
specifications. This enables contractors to prepare clear and comprehensive quotations for, amongst other things:
We provide impartial advice to clients on choosing a contractor by comparing prices and organise consultation meetings, which form the basis for a strong partnership.
From the start of the works right through to completion, we actively monitor the site. When required, we attend site meetings, check the technical specifications of installation components, provide advice during the works and ensure that everything is installed correctly on site.
Once the project is complete, we’ll send you a satisfaction survey. This helps us to keep learning, improving and adapting to our customers’ needs.
| Manager | € 140 |
| Head of Department ARCH / IRS / IRT | € 125|
| Senior ARCH / IRS / IRT | € 115 |
| Junior ARCH / IRS / IRT | € 95 |
| BIM modeller | € 85 |
| Safety Coordinator | €95|
| EPB-verslaggever | € 105 |
| Acoustic engineer | € 115 |
| Admin | € 85 |
| Category 3 | |
| Tender | 0,80% |
| Construction drawings, 0.80% | |
| Measurement data 0.40% | |
| Site inspection – final inspections 2.00% | |
| TOTAL PERCENTAGE4,00% |
Voorwaarden betreffende opdrachten van Raadgevend Ingenieurs Technische uitrustingen van bouwwerken
(Gespecialiseerde opdrachten)
Fees as a function of the cost of the works (in euros)
ASSIGNMENT S
| Cost of the works | ||||
| Klasse | ||||
| 1 | 2 | 3 | 4 | |
| a = | 6,5946 | 8,7928 | 11,7237 | 14,0684 |
| b = | -0,1407 | -0,1407 | -0,1407 | -0,1407 |
| M (10^6 €) | ||||
| a | 1 | 2 | 3 | 4 |
| 0,100 | 9,12 | 12,16 | 16,21 | 19,45 |
| 0,125 | 8,84 | 11,78 | 15,71 | 18,85 |
| 0,150 | 8,61 | 11,48 | 15,31 | 18,37 |
| 0,175 | 8,43 | 11,24 | 14,98 | 17,98 |
| 0,200 | 8,27 | 11,03 | 14,70 | 17,64 |
| 0,225 | 8,13 | 10,85 | 14,46 | 17,35 |
| 0,250 | 8,01 | 10,69 | 14,25 | 17,10 |
| 0,300 | 7,81 | 10,42 | 13,89 | 16,67 |
| 0,350 | 7,64 | 10,19 | 13,59 | 16,31 |
| 0,400 | 7,50 | 10,00 | 13,34 | 16,00 |
| 0,450 | 7,38 | 9,84 | 13,12 | 15,74 |
| 0,500 | 7,27 | 9,69 | 12,92 | 15,51 |
| 0,600 | 7,09 | 9,45 | 12,60 | 15,12 |
| 0,700 | 6,93 | 9,25 | 12,33 | 14,79 |
| 0,800 | 6,80 | 9,07 | 12,10 | 14,52 |
| 0,900 | 6,69 | 8,92 | 11,90 | 14,28 |
| 1,000 | 6,59 | 8,79 | 11,72 | 14,07 |
| 1,250 | 6,39 | 8,52 | 11,36 | 13,63 |
| 1,500 | 6,23 | 8,31 | 11,07 | 13,29 |
| 1,750 | 6,10 | 8,13 | 10,84 | 13,00 |
| 2,000 | 5,98 | 7,98 | 10,63 | 12,76 |
| 2,250 | 5,88 | 7,84 | 10,46 | 12,55 |
| 2,500 | 5,80 | 7,73 | 10,31 | 12,37 |
| 3,000 | 5,65 | 7,53 | 10,04 | 12,05 |
| 3,500 | 5,53 | 7,37 | 9,83 | 11,79 |
| 4,000 | 5,43 | 7,23 | 9,65 | 11,58 |
| 5,000 | 5,26 | 7,01 | 9,35 | 11,22 |
| 6,000 | 5,13 | 6,83 | 9,11 | 10,93 |
| 7,000 | 5,02 | 6,69 | 8,92 | 10,70 |
| 8,000 | 4,92 | 6,56 | 8,75 | 10,50 |
| 9,000 | 4,84 | 6,45 | 8,61 | 10,33 |
| 10,000 | 4,77 | 6,36 | 8,48 | 10,18 |
| 11,000 | 4,71 | 6,27 | 8,37 | 10,04 |
| 12,000 | 4,65 | 6,20 | 8,26 | 9,92 |
| 13,000 | 4,60 | 6,13 | 8,17 | 9,81 |
| 14,000 | 4,55 | 6,07 | 8,09 | 9,70 |
| 15,000 | 4,51 | 6,01 | 8,01 | 9,61 |
ASSIGNMENT E
| Cost of the works | |||
| Klasse | |||
| 1 | 2 | 3 | |
| a = | 9,7269 | 10,9427 | 12,3105 |
| b = | -0,1466 | -0,1406 | -0,1406 |
| M (10^6 €) | 1 | ||
| a | 1 | 2 | 3 |
| 0,100 | 13,45 | 15,13 | 17,02 |
| 0,125 | 13,03 | 14,66 | 16,49 |
| 0,150 | 12,70 | 14,29 | 16,07 |
| 0,175 | 12,43 | 13,98 | 15,73 |
| 0,200 | 12,20 | 13,72 | 15,44 |
| 0,225 | 12,00 | 13,50 | 15,18 |
| 0,250 | 11,82 | 13,30 | 14,96 |
| 0,300 | 11,52 | 12,96 | 14,58 |
| 0,350 | 11,27 | 12,68 | 14,27 |
| 0,400 | 11,06 | 12,45 | 14,00 |
| 0,450 | 10,88 | 12,24 | 13,77 |
| 0,500 | 10,72 | 12,06 | 13,57 |
| 0,600 | 10,45 | 11,76 | 13,23 |
| 0,700 | 10,23 | 11,51 | 12,94 |
| 0,800 | 10,04 | 11,29 | 12,70 |
| 0,900 | 9,87 | 11,11 | 12,49 |
| 1,000 | 9,73 | 10,94 | 12,31 |
| 1,250 | 9,43 | 10,60 | 11,93 |
| 1,500 | 9,19 | 10,34 | 11,63 |
| 1,750 | 8,99 | 10,11 | 11,36 |
| 2,000 | 8,82 | 9,93 | 11,17 |
| 2,250 | 8,68 | 9,76 | 10,98 |
| 2,500 | 8,55 | 9,62 | 10,82 |
| 3,000 | 8,33 | 9,38 | 10,55 |
| 3,500 | 8,16 | 9,18 | 10,32 |
| 4,000 | 8,00 | 9,00 | 10,13 |
| 5,000 | 7,76 | 8,73 | 9,82 |
| 6,000 | 7,56 | 8,51 | 9,57 |
| 7,000 | 7,40 | 8,32 | 9,36 |
| 8,000 | 7,26 | 8,17 | 9,19 |
| 9,000 | 7,14 | 8,03 | 9,04 |
| 10,000 | 7,04 | 7,92 | 8,91 |
| 11,000 | 6,94 | 7,81 | 8,79 |
| 12,000 | 6,86 | 7,72 | 8,68 |
| 13,000 | 6,78 | 7,63 | 8,58 |
| 14,000 | 6,71 | 7,55 | 8,49 |
| 15,000 | 6,65 | 7,48 | 8,41 |
T = a.Mb
Where:
T is the base percentage
a is a fixed term depending on the class of the works
M is the cost of the works expressed in millions of euros
is a negative fixed term depending on the class of the works
(*) If the lowest/highest value for the cost of the works as specified in this table is exceeded, the fee percentage remains constant and corresponds to the percentage specified for the lowest/highest value of the cost of the works.
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