On this page
Prices shown as “from” are indicative starting amounts for the stated scope. Your quotation specifies materials, labour, VAT and additional work.
Price indications and what to compare
| Work | Indicative starting price | Scope and assumptions |
|---|---|---|
| Basic finishing | From € 5,000 | Market range for insulation, flooring and walls; confirm VAT and exact scope. |
| Bedroom with dormer and staircase | From € 12,000 | Market range; depends on structure, services and finishes. |
| Multiple rooms or extensive conversion | From € 20,000 | Market range; a bathroom and extra structural work may increase the total further. |
Market estimates consulted on 2 October 2026. These are not fixed Multi Concurrent rates. Your project quote specifies the price, VAT and included work.
What kind of room do you want?
A hobby room needs a different layout from a bedroom or bathroom. Discuss clear height, circulation, ventilation and daylight. Have suitability for use as a habitable room assessed.
Insulation and moisture
The new finish must suit the existing roof build-up. Have ventilation, insulation and vapour-control layers assessed together before enclosing the inside of the roof.
Floor and access
A new bathroom or heavy partition adds loads. A new stair opening also alters the existing floor. Have these changes structurally designed.
Build a budget by component
Ask for separate items for any dormer, staircase, structure, insulation, electrics, heating, walls, ceiling, flooring and painting. Specify which finishes are included and excluded.
From preparation to handover
Initial assessment
Identify existing defects and the requirements for your home.
Investigations
Have the structure, moisture conditions and installations assessed.
Plan
Agree the layout, materials and order of work.
Budget
Discuss the quote, choices and allowances for unforeseen work.
Preparation
Arrange occupancy, storage and site access.
Strip-out
Carefully remove the agreed elements.
Building work
Alter walls, floors and the structure as agreed.
Installations
Install pipework, cabling and technical equipment.
Finishing
Complete plastering, tiling and painting.
Handover
Inspect the result and discuss how to use and maintain it.
Frequently asked questions
Is the price on this page a quote?
No. An estimate or worked example is for initial planning. The property, materials and agreed scope determine your quote.
What should I include in a quote request?
Describe the work and include the town, postcode, photographs, dimensions and any available drawings. Add your preferred start period. Larger projects need a site visit to establish the scope and price.
Do I need a permit?
This depends on the work, the address and local rules. Check your plan through the Dutch Omgevingsloket and have structural alterations assessed in advance. Work that does not need a permit must still comply with applicable building rules.