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Structural engineer in Amersfoort

An extension, additional storey or combined project in Amersfoort starts with a clear request for records. Follow the municipal routes for older and newer drawings, and check the heritage category applying to the address separately.

Your building project

Planning changes to a property in Amersfoort?

Request structural calculations for your project. Choose the work you are planning or tell us what you want to change.

What you can send us

  • The address of your project.
  • A short description of your plans.
  • Any drawings and photos you already have.

No drawings yet? You can still get in touch. We will discuss the information needed for your calculations.

Prepare your local project

Amersfoort: make a focused request for building records

  1. Use the 2011/2012 boundary

    The municipality directs building drawings through 2011 to Archief Eemland. Drawings from 2012 onwards use the municipal request route.

    Practical step: Record the original construction and later alteration years. Match each file found to a construction phase; check the current municipal referral if unsure.

    Official source · Gemeente Amersfoort · archiefroutes
  2. Specify the records needed

    Amersfoort identifies permit-related building drawings as documents requested through an information request. It asks for a clear description of the information sought.

    Practical step: Include address, approximate year and any known file number. For example, request records of a previous extension rather than simply ‘all information about my house’.

    Official source · Gemeente Amersfoort · informatieverzoek
  3. Record the heritage category

    The municipal heritage map distinguishes listed buildings, buildings contributing to local character and buildings in protected urban areas. Amersfoort recommends early contact with its heritage service.

    Practical step: Keep the category and area information with your design. Identify the wall, storey or roof form being changed; the map alone does not determine your project’s outcome.

    Official source · Gemeente Amersfoort · erfgoed

Municipal information checked on 31 October 2026. The practical steps are our preparation suggestions. Archive records and maps do not automatically describe the current condition of your building.

The local housing profile

For Amersfoort, Statistics Netherlands (CBS) records 163,298 residents and 72,367 homes on 1 January 2025. Single-family homes make up 62% of the stock; dwellings in multi-unit buildings account for 38%. This distinction helps when preparing an alteration: work on an entire house raises different questions from work within a shared building. Describe which walls, floors or roofs you wish to alter.

Within Utrecht, 11.6% of residents live in the municipality of Amersfoort. The settlement classification dated 1 January 2026 lists 4 settlements here. These are Amersfoort, Hoogland, Hooglanderveen, Stoutenburg Noord. The population and housing figures on this page cover the entire municipality, including these settlements.

Amersfoort — municipal figures
CharacteristicNumber or shareReference date or period
Population of the entire municipality163,2981 January 2025
Homes72,3671 January 2025
Single-family homes62%1 January 2025
Dwellings in multi-unit buildings38%1 January 2025
Homes more than ten years old91%1 January 2025
Newly built homes added3352025
All renovationsNot available in these sourcesNo estimate

CBS — population (1 January 2025) · CBS — housing stock and dwelling types (2025) · CBS — officially registered settlements (1 January 2026)

Combine several Amersfoort alterations in one enquiry

Combining an extension with a wall opening or roof alteration? Identify existing and new elements for each part. Describe the intended sequence if known so the relationships between changes can be discussed during the enquiry.

  • Timeline of construction phases, file numbers and received drawings.
  • An overview sketch of all connected alterations.
  • Open design choices and missing information, plus available heritage records.

Calculation for your project

Discuss my building plans

Amersfoort compared with the province of Utrecht

With 163,298 residents, Amersfoort ranks 2 among the 26 municipalities in Utrecht, from largest to smallest population. The municipality accounts for 11.7% of the province’s housing stock and 4.2% of its land area. This shows the relationship between the number of homes and the area within this municipality.

Calculated population density in Amersfoort is 2,613 residents per km² of land, compared with 949 for the province of Utrecht. This is an area comparison, not a measure of access to your building site. Describe access, available working space and adjoining buildings in your enquiry.

CharacteristicMunicipality of AmersfoortProvince of Utrecht
Population163,2981,409,144
Housing stock72,367620,062
Land area (km²)62.491,484.48
Calculated residents per km² of land2,613949

Reference date: 1 January 2025. Provincial totals are summed from municipal data; densities and shares are calculated from these totals. Rounded areas can produce small differences from directly published densities.

Soil and ground types

Within the boundaries of Amersfoort, map unit pZg23 covers the largest measured area of soil polygons in this analysis: 565 hectares, or 21.9% of the mapped area.

Original Dutch source name:

Beekeerdgronden; lemig fijn zand

Soil map 2025 — intersection with the area boundary
Map codeDutch soil classification: first unitArea (ha)Share of mapped area
pZg23Beekeerdgronden; lemig fijn zand56521.9%
gHd30Haarpodzolgronden; grof zand1766.8%
kVzWaardveengronden op zand, beginnend ondieper dan 1.2 m1696.5%
kpZg23Beekeerdgronden; lemig fijn zand1666.4%
gY30Holtpodzolgronden; grof zand1566.0%
Other unitsOther mapped soil polygons1,35352.3%

The shares are calculated within the soil polygons on the map, not across all land or all building addresses. For compound map codes, the name of the first unit is shown. The map describes shallow soil; built-up areas are not fully mapped. It does not establish bearing capacity or determine whether piles, pad footings or strip foundations should be used.

Explore subsurface data in BROloket · How the soil map can be used · Method and sources for these area profiles

Read about foundation investigations · Pad footing, pile or strip foundation?

How much renovation takes place?

The CBS tables used here do not provide a complete local renovation count for Amersfoort. We therefore do not estimate this from population, new homes or a national percentage. These sources also do not establish which type of renovation is most common.

See the available building figures and what they mean

Towns and villages within this municipality

The names below are officially registered BAG settlements from the 2026 CBS classification. One settlement may contain several neighbourhoods. The municipal figures above are not separate population counts for these villages.

Structural calculations for your project

Choose the alteration that matches your project. The linked service page describes the information needed, possible deliverables and points to consider. Site surveys, timing and costs are agreed for each commission.

ServiceStart with this informationFurther explanation
Remove load-bearing wallFloor plans of all floors; Desired width and position of the openingView the structural calculation service
New extensionDrawings of the existing and new situation; Dimensions and desired materialsView the structural calculation service
Additional rooftop storeyExisting structural and foundation drawings; preliminary design of the additional storeyView the structural calculation service
FoundationsLoads and design of the superstructure; Available soundings or soil reportsView the structural calculation service
Steel beamClear span and total available length; Load from floors, roof and wallsView the structural calculation service
DormerRoof cross-section and existing beam dimensions; Dimensions and position of the dormer windowView the structural calculation service
Roof terraceDrawings of the existing roof; Desired layout and floor structureView the structural calculation service
Solar PV panelsLaying plan and ballast plan from the installer; Weights of panels and mounting systemView the structural calculation service
Stair openingFloor structure and bearing direction; Position and dimensions of the openingView the structural calculation service
House and new constructionArchitectural design; Available soil surveyView the structural calculation service
Extension of an existing roomExisting and desired floor plan; Sections and dimensionsView the structural calculation service
BalconyExisting facade and floor drawings; Balcony dimensions and choice of materialsView the structural calculation service
Bay extensionFacade drawings and section; Dimensions and frame layoutView the structural calculation service
CanopySizes and position; Roof covering and roof slopeView the structural calculation service
CarportDimensions and clear passage; roof build-upView the structural calculation service
GarageFloor plan and doors; roof and floor build-upView the structural calculation service
ShedDimensions and construction method; Intended use and storageView the structural calculation service
Flat roofBeam or slab details; roof build-upView the structural calculation service
Remove chimneyCross-section of the chimney flue; Desired removal per floorView the structural calculation service
Timber floor joistsBeam sizes and center-to-center distances; Spans and supportsView the structural calculation service
LintelOpening and dimensions; Wall and facade constructionView the structural calculation service
Steel trussGeometry and supports; roof and facade weightsView the structural calculation service
Roof ridge raisingExisting roof cross-section; Desired ridge and gutter heightsView the structural calculation service
Floor and floor reinforcementType and construction of the floor; Drawings and existing reinforcement where knownView the structural calculation service
Additional storey above an extensionExisting extension drawings and calculations; Foundation dataView the structural calculation service
Sliding doors and facade openingFacade view and section; Desired openingView the structural calculation service
Multiple interventions in one projectOverview of all proposed interventions; Coordinated design drawingsView the structural calculation service

Submit your building plans

For a project in Amersfoort, start with the building address and proposed alteration. For alterations to a house: which walls will be removed, where must the space remain clear and how are the storeys above supported?

Discuss your project

What are your construction plans?

Tell us what you want to change. Then we look at what calculation is needed.

Discuss your project
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