Starrenburg III

Last modified on: July 20, 2026

Starrenburg III is a new residential neighborhood south of Starrenburg II, between Veurseweg and the Vliet. It will feature 356 homes of various types and price ranges. The development is being carried out by De Raad Bouw and Niersman Projectontwikkeling, which have reached agreements with the municipality of Voorschoten regarding this project.

On this page, you'll find the latest news, frequently asked questions, and documents, among other things.

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Latest News

Order Subject to a Penalty for the Starrenburg III Access Road

On July 3, 2026, the West-Holland Environmental Agency (ODWH) imposed an order subject to a penalty payment on De Raad Bouw B.V. and contractor WB Infra B.V. This decision concerns the possible presence of steel slag in the temporary construction road at Starrenburg III.

The developer and the contractor must resolve the situation. They must demonstrate that the construction road meets the legal requirements or remove the material.

The developer has indicated that it wants to commission an independent investigation into the material used in the construction road. For this reason, the ODWH has given the developer six weeks to resolve the situation. Normally, this deadline is four weeks.

If the legal requirements are not met after these 6 weeks, a penalty will be imposed. The obligation to resolve the situation also remains in effect.

Steel Slag and Health

The ODWH has determined that the material is currently adequately covered and that any possibility of contact has been ruled out. The ODWH has consulted with the Regional Medical Emergency Response Organization (GHOR), which provides advice on public health risks. Based on this, the ODWH concludes that there is currently no risk to public health. The ODWH therefore sees no reason to close the construction road.

Would you like to learn more about steel slag and health? Visit the GGD website at.

Building Materials and Health

Dust may be released into the surrounding area during transport along the construction road. This may cause discomfort for nearby residents. Exposure to dust can lead to temporary symptoms such as irritated eyes, sneezing, coughing, or irritation of the nose, throat, and airways. People with sensitive airways may be particularly affected.

The developer has been asked to minimize dust pollution. As a result, the construction site road is being kept wet, and the Veurseweg is being swept regularly.

Steel slag

Steel slag was discovered at Starrenburg following an inspection by the West Holland Environmental Agency (ODWH). The Municipality of Voorschoten fully understands that residents have concerns, questions, and a need for clarity regarding their living environment, safety, and health. In close collaboration with the ODWH, we are striving to answer these questions as transparently and clearly as possible. 

Who is responsible for oversight and enforcement?

The West-Holland Environmental Agency (ODWH) is responsible, on behalf of the Municipal Executive, for issuing permits, oversight, and enforcement in the areas of the environment and soil. The municipality follows the ODWH’s findings and assessments and works closely with the ODWH.

In addition, the municipality remains in contact with the developer and the contractor and holds them accountable for their responsibilities, including providing local residents with accurate information.

A penalty payment—what does that mean?

If the ODWH finds that a violation has occurred, it may impose a penalty payment. A penalty payment is a sum of money that a violator must pay if the violation is not remedied.

On the ODWH website,, you can read about the various steps involved in a penalty payment.

Previous News

Public participation took place during the planning phase. On June 7, 2022, a residents’ meeting was held, during which the developers and the architect explained the urban development plan and answered questions. The related documents can be found at the bottom of the page under “Council Information.”

The Starrenburg III Implementation Plan was submitted for approval at the end of 2023 and was adopted and published in January 2025 via “Regels op de kaart” (Environmental Act). The amended urban development plan was adopted by the Municipal Executive on December 3, 2024.

In December 2024, the municipality of Voorschoten, De Raad Bouw, and Niersman Projectontwikkeling entered into a preliminary agreement regarding the construction of Starrenburg III. This agreement sets out the terms for the development of the neighborhood.

Preparatory work began in March 2026.

On March 31, 2026, residents living near Veurseweg received a letter regarding the temporary construction road on Veurseweg. It can be found at the bottom of the page under “Letters.”

Starting in April 2026, the municipality held additional meetings with the developers, and we made further agreements regarding implementation and communication.

On May 7, 2026, the municipality of Voorschoten sent a registered letter to De Raad Bouw regarding the failure to comply with the agreements that had been made. You can find this letter at the bottom of the page under “Letters.”

On May 12, 2026, the municipality received the report from the environmental agency regarding the materials used in the construction of the access road. The informational letter (including the recommendation, audit report, and registered letter) can be found at the bottom of the page under “Council Information.” On May 13, 2026, the municipality issued a press release on this matter.

On May 15, the municipality sent out a letter to residents regarding the current status and next steps. You can find this letter at the bottom of this page under the "Letters" heading.

On May 20, the developer was still using the construction road. The ODWH remains responsible for oversight and enforcement and is taking further steps. The results of the investigation will be taken into account in this process.

On May 22, the ODWH issued an order subject to a penalty payment to the Raad Bouw and the general contractor WB Infra. This means that the developer must resolve the situation either by obtaining legal authorization (applying for a permit) or—if that is not possible—by removing the material within a reasonable period of time. Objections and appeals may be filed against this decision. The order subject to a penalty provides the parties with four weeks to comply with the legal requirements.

On July 3, 2026, the West-Holland Environmental Agency (ODWH) imposed an order subject to a penalty payment on De Raad Bouw B.V. and contractor WB Infra B.V. The parties involved must resolve the situation by demonstrating compliance with the legal requirements or by removing the material in question. They may file an objection to this decision and appeal it.

Frequently Asked Questions

Why is the construction site currently higher than the existing homes in the neighborhood? Will the new homes be built at the same height?

No. The current elevation of the construction site is temporary. An additional layer of soil, also known as preload, is currently being added at Starrenburg III. This layer allows the soil to settle before construction begins. After this settling period, part of the added soil will be removed. Then the final elevation of the new neighborhood will be determined, and construction of the homes will begin. The homes will therefore not be built at the current elevation of the construction site. 

Why does construction traffic go via Veurseweg instead of Zuiderzichtlaan?

Zuiderzichtlaan is a residential street with mixed traffic that runs alongside a school. Heavy construction traffic would have to share the road with cyclists and pedestrians there, which is less safe.

Veurseweg is a road designed to handle more and heavier traffic and has separated bike lanes. That is why a temporary construction access point on Veurseweg was chosen.

A detailed explanation can be found in the March 2026 residents' newsletter.

What has been agreed upon regarding the use of the construction route?

It has been agreed with the developers that construction traffic will use only the designated route via Veurseweg. Other routes, such as Zuiderzichtlaan, are not permitted. The municipality will monitor compliance and hold the developer accountable if the agreements are not honored.

What measures have been agreed upon to reduce disturbances and improve safety?

Agreements have been reached regarding the use of the temporary construction access point on Veurseweg. The access point will be designed so that trucks can safely cross the bike path and do not have to wait on the roadway. The crossing will be clearly marked.

Construction traffic follows designated routes. Trucks arrive only from the south and turn immediately right onto the site. From the entrance, they leave the site by turning right again, heading north. The median strip is being modified so that trucks can turn safely and traffic can continue to flow more smoothly.

What about vibrations and potential damage to homes?

The developer has agreed to conduct baseline measurements where necessary to monitor damage and subsidence caused by vibrations. The municipality is overseeing this process.

How are local residents kept informed?

The developer is responsible for informing local residents in a timely manner about construction work and traffic movements. This communication is coordinated with the municipality. Additional agreements have been made in consultation with the municipality to improve the provision of information.

Planning

  1. Completed: 2022

    Public Participation and Development of the Urban Planning Plan

  2. Completed: 2023–2025

    Adoption of the Implementation Plan and Related Resolutions

  3. Currently working on: 2026

    Begin preparatory work and construction of a temporary access road

  4. Still to be done: 2026–2028

    Start construction and site preparation 

  5. Still to do: 2029

    Completion of Starrenburg III

Contact and More Information

Do you have a question about Starrenburg III? Or are you interested in a new home? If so, please contact De Raad Bouw or Niersman. You can do so by emailinginfo@woneninstarrenburg.nlor by calling 071 405 15 00. For more information, visit the Wonen in Starrenburg website at .

For any other questions, please contact the project manager on behalf of the municipality of Voorschoten. To do so, call 14 071 or use thecontact form.

Letters

Permits

Council Information