May a drafting firm submit construction drawings?

Yes. For the environmental permit, it makes no legal difference whether an architect or a building drafting firm produced the drawings. The municipality assesses quality and completeness, not the sender. Since the Building Quality Assurance Act (Wet kwaliteitsborging voor het bouwen, Wkb) of 2024, additional construction-work supervision is carried out by an external quality assurer, but this is separate from who produced the drawings.

What price does an architect charge?

Architects often work on an hourly basis with rates between €85 and €145 per hour. For a construction drawing for a dormer or extension, they charge between €1.200 and €2.500. Some architects give fixed package prices for homes, but the majority stick to an hourly rate. An architect process for a rear extension can rise to €3.000 including consultation and revision rounds.

What price does a drafting firm charge?

A specialised drafting firm uses fixed package prices: dormer €450 to €650, extension €750 to €1.200, rear extension €950 to €1.800. A structural calculation comes on top of that at €350 to €750. The fixed price works because the drawing work is standardised and we process routine projects efficiently. With us, two revision rounds are included as standard, plus free adjustments to the building drawing work when the municipality requests them.

When should I definitely choose an architect?

Choose an architect when: 1) You have a unique design challenge with full creative freedom and design integration, 2) The project lies in a monumental inner city or protected townscape where architectural expertise is crucial for aesthetics (welstand), 3) It concerns new build or a large-scale renovation where urban-design integration is required, 4) You want a high-quality home where every detail comes authentically to life, 5) The budget is generous and design quality takes priority over cost efficiency.

When should I definitely choose a drafting firm?

Choose a drafting firm when: 1) You are carrying out a regular residential intervention such as a dormer, extension, rear extension, or roof addition, 2) You value a fixed price and short delivery time, 3) The project does not lie in welstand level 1, 4) You do not need unique design integration but want a permit-ready file, 5) You need specialised municipal knowledge for an efficient permit procedure. Drafting firms are usually faster in administrative handling than architecture firms.

What is building certification?

In the Netherlands, the construction sector has no mandatory certification for building draughtsmen. However, many professional draughtsmen do have an NEN-3140 electrical certification for home modernisation, an asbestos-survey certification, or an EPC/BENG calculation-software certification. For architects, registration in the Architects' Register is mandatory under the Architect's Title Act. Only registered persons may use the title architect.

How do building draughtsmen and contractors relate to each other?

A building draughtsman produces the permit-ready file; a contractor carries out the construction. Some contractors also offer in-house drawing work via an internal drawing office, which may seem cheap but is often a compromise because the draughtsman supports the preferred contractor and does not independently seek the best solution for the owner. We recommend independent drawing work, followed by a choice from three contractors with the final drawing as the basis for quotations.

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Construction drawings

Architect or drafting firm? Which to choose when in 2026

Q: What is the difference in knowledge?

An architect has completed four to six years of academic education including urban design and building history. A building draughtsman has completed a vocational (MBO) or higher professional (HBO) building-engineering programme of two to four years with a focus on technical drawing and Building Decree assessment. For regular projects, the building draughtsman is sufficient; for monuments or complex urban-design challenges, architect expertise adds value.

Snel Kwaliteit Tekenwerk6 May 20266 min read

3D illustration of a drafter weighing the choice between an architect and a drafting firm, with two drawings and a balance scale.

For regular residential projects such as a dormer, extension, or rear extension, a drafting firm is usually the right choice in 2026: a fixed price from €450, a delivery time of seven working days, and specialisation in the permit process. You choose an architect for unique design challenges, monumental inner cities, or new build where full creative freedom and design integration are crucial. Architect rates lie between €1.200 and €2.500 for comparable construction drawings, often on an hourly basis without a fixed final price. For 90 percent of Dutch residential projects, a drafting firm delivers the same result at a third of the cost.

The legal framework

For the Dutch environmental permit, it makes no legal difference whether an architect or a building drafting firm produced the drawings. The municipality assesses the substantive quality and completeness of the file, not the sender. Anyone may produce and submit construction drawings. The Architect's Title Act (Wet op de architectentitel) of 1988 regulates only the use of the title "architect": this is reserved for persons registered in the Architects' Register of the SBA (Stichting Bureau Architectenregister). Building draughtsman is not a protected title; anyone can present themselves as one. Since the Building Quality Assurance Act (Wet kwaliteitsborging voor het bouwen, Wkb) of 2024, an external quality assurer is mandatory for residential projects in consequence class 1, assessing the building process. This quality assurer is separate from the draughtsman or architect. So: for the environmental permit, the choice between an architect or a drafting firm is a matter of expertise, cost, and preferred style, not of legal authority.

Architect expertise

An architect has completed a four-to-six-year academic education at a university of applied sciences or a university. The Dutch architecture programmes at TU Delft, TU Eindhoven, and the Academies of Architecture in Amsterdam, Rotterdam, Groningen, and Maastricht produce graduates with broad expertise in urban design, building history, materials science, the social aspects of architecture, and sustainability. The architecture programme concludes with an integrated design project in which all facets come together. A registered architect is required to follow continuing professional development through the Stichting Bureau Architectenregister, which keeps their knowledge up to date. The added value of an architect comes to the fore especially in: new-build projects where full urban-design integration is required, monuments where authentic materials and historically sound interventions are crucial, commissions in welstand level 1 zones where the aesthetics committee demands high design quality, and design-oriented renovations where every detail connection is an integral part of the concept. An architect often delivers an integral narrative: from first sketch to final execution, including choice of materials, colour advice, and interior advice.

Drafting firm expertise

A building draughtsman has completed a vocational (MBO, level 4) or higher professional (HBO) building-engineering programme of two to four years with a strong focus on technical drawing, Bbl/Building Decree assessment, and execution details. Many draughtsmen begin their career at a contractor's drawing office or at a specialised drafting firm and build up specific municipal knowledge there. The added value of a drafting firm comes to the fore especially in: regular residential interventions such as a dormer, extension, rear extension, and roof addition, where standardised drawing work is efficient and cost-saving. An experienced drafting firm often has better municipal knowledge than a general architect, because the firm communicates daily with municipal desks and knows which documents which municipality prefers. SK Tekenwerk has worked in 342 municipalities since 2014, which means that for every municipality we know the specific aesthetic (welstand) requirements, zoning-plan quirks, and procedural preferences. For 90 percent of Dutch residential projects, a drafting firm delivers the same permit result as an architect, at a third of the cost and with a shorter delivery time.

Cost comparison in concrete terms

For a dormer drawing, an architect typically charges €1.200 to €1.800, and a drafting firm €450 to €650 including a structural calculation for standard dormers. For an extension drawing, an architect charges €1.500 to €2.500, and a drafting firm €750 to €1.200. For a rear extension, an architect charges €2.000 to €3.000, and a drafting firm €950 to €1.800. For a roof addition, an architect charges €2.500 to €4.000, and a drafting firm €1.200 to €2.000. The difference lies in: labour hours (an architect works on an hourly basis with more consultation), firm overhead (an architecture firm has higher overhead costs), and a design-quality component (an architect delivers more design variation and visualisation). For projects where design quality is crucial, the architect's premium is justified. For regular residential projects, the drafting firm's rate is the market standard. With both options, municipal permit fees (€985 to €1.450) and any aesthetic (welstand) advice costs are extra.

Our advisory rule

Our advisory rule from practice: for the top 50 regular residential interventions (dormer, extension, rear extension, roof addition, shed, carport, garage, garden house, facade alteration, home splitting, basement extension), a drafting firm is the most cost-efficient choice. For monuments, protected townscapes, new build, and large-scale integral renovations, an architect is the right choice. For borderline cases, for example an extension in a monumental inner city, a combination is valuable: an architect does the design and urban-design assessment, and a drafting firm delivers the final working drawings. In this hybrid model, the architect charges only for the design phase (€800-€1.500) and the drafting firm for the working drawing (€750-€1.500). When in doubt: call us free of charge and without obligation for advice. We are always transparent about when an architect adds value and when we are more efficient.