
BUILDING CONTRACTOR HAARLEM / EXTENSIONS & RENOVATION
More space.
More at home.
An extension that feels part of the original house. Or a thoughtful new layout that fits the way you live today.
01 / Three ways to rethink your home
There is more to your home.
Moving is not the only way to make room for a different life. The answer may lie beyond the rear wall, or within the rooms you already have. Start with what you want to change.
01House extensions in Haarlem
A bigger kitchen, space around the dining table, a closer connection to the garden. Start with how you want to use the extra room.
02Home remodelling in Haarlem
Sometimes a better layout matters more than extra floor area. Bring structural changes and everyday living together in one considered plan.
03Interior renovation in Haarlem
Renew floors, walls and services with attention to what sits behind the finish. Plan the hidden work before choosing the visible details.
02 / Our approach
A considered plan comes first.
From an initial sketch to the construction agreement, distinguish what is settled from what still needs assessment.
Our approach- 01
Your wishes and the building
Describe what is missing and what you want to preserve. Share measurements, photographs and existing drawings. Your preferred timing starts as a request, not an agreed construction programme.
- 02
Assessment and design
Discuss structure, access, services and any permissions. Agree who supplies each piece of information. Unknown building conditions become explicit assessment questions.
- 03
Scope, price and agreement
The developed quote sets out inclusions and exclusions. Timing, payment, changes and handover belong in the agreement. This website does not invent standard prices or payment percentages.
- 04
Construction and handover
Keep a record of decisions and variations. Review the work at handover and list outstanding items with next actions. Retain relevant drawings and product information.
Plan your project
From possibilities
to your project.
Turn an initial idea into a useful enquiry. Choose your project, dimensions and finish; your summary becomes part of the conversation.
Plan your project03 / Haarlem
Every Haarlem home has its own story.
Garden access, earlier alterations and the existing structure make a difference. Explore the considerations in your neighbourhood.
01Extensions and renovation in Kleverpark
In Kleverpark, an extension needs to work with the existing house and garden. Start by looking at the building as a whole.
Haarlem municipality · Visit by appointment
02Extensions and renovation in Leidsebuurt
Making an established urban home feel larger takes careful choices. In Leidsebuurt, layout, daylight and access need to be considered together.
Haarlem municipality · Visit by appointment
03House extensions and remodelling in Schalkwijk
A new kitchen layout or extra space facing the garden: in Schalkwijk, first consider the property type and its existing structure.
Haarlem municipality · Visit by appointment04 / Guides
Bring better questions to the conversation.
Practical guidance for decisions you do not make every day.
Glossary ↗Planning an extension in Haarlem: checking permissions
Check requirements for your particular address and design. An extension elsewhere in the street does not establish what is allowed at your property.
How to compare extension quotes
Compare the included work before comparing totals. A lower figure can simply mean that part of the project has not been included.
Daylight in an extension: remember the original room
More garden-facing glass does not automatically bring light deep into the house. Consider the new extension and original room together.
Discuss your project
Tell us about your home.
You do not need a finished design. A clear idea is a useful starting point.
06 40062896Jongma Development · Hoofddorp · Chamber of Commerce 91401216