Behrouz Zafar — CAD · BIM · Kalkulation
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Services — Cost Estimation & AVA

Cost Estimation & AVA

Technical and commercial support for construction projects

I support architecture, engineering and planning firms, construction companies and project developers with the structured processing of quantities, costs, bills of quantities, tender documents and received bids.

The focus is on a traceable technical and commercial preparation of project information — from quantity takeoff and cost planning through BOQ processing and costing to structured bid evaluation.

The collaboration can comprise individual tasks or defined project phases and serves as a flexible complement to existing planning, AVA and costing teams.

The services are aimed at professional business clients and project partners, not primarily at private clients.

For professional planning teamsArchitecture firmsEngineering firmsPlanning firmsConstruction companiesProject developers
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Service areas

Structured cost table combined with an architecture plan for cost estimation
01

COST ESTIMATION & COST CONTROL

Record project costs in a structured way and develop them traceably

A reliable cost overview requires a clear structure and traceable bases. On the basis of existing planning documents, quantities, project information and defined specifications, costs can be determined, structured and updated as the project progresses.

Possible services

  • Structured cost estimation
  • Setup and processing of cost overviews
  • Assignment of costs to project or component areas
  • Updating of existing cost statuses
  • Comparison of different cost statuses
  • Target-actual comparisons based on available project data
  • Identification and documentation of relevant cost deviations
  • Preparation of cost information for the project team
  • Traceable tabular documentation
Technical architecture plan with traceable quantity and area takeoff
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QUANTITY TAKEOFF & MEASUREMENT PROCESSING

Derive quantities traceably from planning documents

Quantities form an essential basis for bills of quantities, cost calculations and cost control. Quantity takeoff can be based on existing plans, digital documents or suitable BIM models.

Possible services

  • Quantity takeoff from floor plans, sections and detail drawings
  • Determination of areas, lengths, volumes and piece counts
  • Component-related quantity takeoff
  • Processing and structuring of existing measurement data
  • Checking and supplementing existing quantity assumptions
  • Assignment of quantities to bill items
  • Tabular quantity summaries
  • Traceable documentation of the calculation bases
  • Model-based quantity takeoff from suitable BIM models
Professionally structured bill of quantities with items, quantities and service areas
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BILLS OF QUANTITIES | BOQ

Structure and describe services unambiguously

Bills of quantities form the technical basis for tendering, costing and bid comparison. Existing project information and quantities are brought together in a clear and traceable structure of services.

Possible services

  • Creation and processing of bills of quantities
  • Structuring by service areas
  • Creation and processing of items
  • Assignment of determined quantities
  • Processing of existing BOQ structures
  • Supplementation and updating of existing bills of quantities
  • Checking for structural completeness
  • Standardisation of designations and item structures
  • Preparation for further tender processing
Combination of technical plans, bill of quantities and structured tender documents
04

TENDER DOCUMENTS

Prepare technical information for the bidding phase in a structured way

For traceable bid processing, the relevant technical information must be compiled unambiguously and consistently. I support the responsible project team with the technical preparation and processing of the tender documents.

Possible services

  • Preparation of bills of quantities for tendering
  • Compilation of relevant technical planning documents
  • Checking consistency between plan and BOQ
  • Updating of quantities and items
  • Structured compilation of tender information
  • Processing and updating of existing documents
  • Documentation of changes
  • Technical support of the responsible project team during the tender phase
Professional costing table in connection with technical project information
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COSTING & PRICE DETERMINATION

Evaluate quantities and services commercially

On the basis of defined quantities, bill items and existing project information, costing bases can be structured and processed.

Possible services

  • Costing of individual bill items
  • Structured price determination
  • Assignment of prices to quantities and items
  • Setup and processing of costing tables
  • Comparison of different costing statuses
  • Updating of existing cost calculations
  • Checking of arithmetic relationships
  • Technical support for project and bid cost calculations
  • Clear documentation of the costing bases
Price comparison schedule comparing several bidders in a clear tabular structure
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BID EVALUATION & PRICE COMPARISON

Make received bids transparently comparable

Differently structured bids must be recorded in a structured way and brought to a common comparison basis. The aim is a traceable presentation of the offered prices, items and relevant deviations.

Possible services

  • Recording of received bids
  • Structured transfer of bid data
  • Arithmetic checking
  • Comparison of unit prices and total prices
  • Item-related bid comparison
  • Creation of price comparison schedules
  • Comparison of several bidders
  • Marking of conspicuous price deviations
  • Documentation of missing or deviating information
  • Creation of clear comparison tables
  • Structured preparation for the responsible project team
Clear bid evaluation with comparison tables as a decision basis
07

PREPARATION OF THE AWARD DECISION

Prepare information in a structured way for the client

After bid evaluation, the relevant results are brought together so that the client or the responsible project team receives a traceable basis for the further award decision.

Possible services

  • Summary of the bid evaluation
  • Comparison of relevant prices
  • Presentation of identified deviations
  • Compilation of open or unclear items
  • Processing of price comparison schedules
  • Structured comparison overviews
  • Documentation of the check results
  • Preparation of documents for internal decision-making
  • Clear presentation of the relevant bid information

The service offered comprises the technical, arithmetic and organisational preparation of the decision basis. The selection of a bidder, the actual award decision and the commissioning are carried out by the client or the responsible body. No independent award decision is made on behalf of the client.

02

Connection

From the digital model to the quantity

With appropriately structured BIM models, model information can also be used as a basis for quantity takeoff and further cost processing.

This allows the service areas of BIM, quantity takeoff and costing to be meaningfully connected.

The prerequisite is that the underlying model is suitable for the respective evaluation in terms of component structure, attributes and modeling quality.

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Frequently asked questions

Frequently asked questions

04

Collaboration

Project-based collaboration

The services are aimed at architecture firms, engineering and planning firms, construction companies and project developers who need additional capacity for quantity takeoff, AVA, costing or bid evaluation.

The collaboration can be limited to a single clearly defined task or extend to continuous support within a project phase.

Do you need support for an ongoing or planned project?

Enquire about a project