Green roof costs
Find out what a green roof costs per sq. ft. Compare the cost of a sedum roof, roof flower meadow, retention roof or insulation roof and get an instant price quote for your situation.
Calculate your priceWhat does a green roof cost per square meter?
The cost of a green roof depends on the type of green roof, the surface area and the chosen construction. The prices below are indicative and based on a complete construction including materials and installation.
| Green roof type | Guide price per m² | Biobased |
|---|---|---|
| Sedum roof | From €89.95 per m² | From €150 p/m² |
| Sedum herb roof | From €95 per m² | From €155 p/m² |
| Native rooftop flower meadow | From €95 per m² | From €155 p/m² |
| Sloping green roof | From €115 per m² | N/A. |
| Insulated roof | From €135 per m² | N/A. |
| Retention roof | From €175 per m² | N/A. |
All prices mentioned are indicative starting prices for a complete all-in construction. This includes the necessary materials, vegetation, construction and finishing. The final price depends on the surface area, accessibility of the roof, roof construction and any additional requirements.
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What factors determine the cost of a green roof?
The cost of a green roof varies from project to project. In addition to the type of green roof chosen, the surface area, roof construction and accessibility of the roof also play an important role. Therefore, every request receives a customized price estimate.
Factor 1: Area of roof
The larger the roof area, the more efficient the construction can often be performed. This usually lowers the price per square meter on larger projects.
Factor 2: Type of green roof
A sedum roof has a different construction than, for example, a retention roof or biobased green roof. As a result, material and construction costs differ for each system.
Factor 3: Roof construction
Not every roof has the same bearing capacity. In some situations, a structural check is needed to determine which type of green roof is suitable.
Factor 4: Roof accessibility
Accessibility affects construction costs. A roof that is easily accessible requires less preparation than one that requires a crane or aerial platform.
Factor 5: Subsidy
Many municipalities and water boards offer subsidies for green roofs. This can significantly reduce the final investment.
Wondering what a green roof on your roof costs?
Choose your type of green roof
Sedum roof
Low maintenance and lightweight green roof for flat and gently sloped roofs.
View sedum roof
Sedum herb roof
Green roof with sedum and herbs for more biodiversity and variety.
View sedum herb roof
Native rooftop flower meadow
Biodiversity green roof with native flowers and herbs.
View native rooftop flower meadow
Green roof insulation (XPS)
Green roof with XPS insulation, ideal for energy savings and a pleasant indoor climate.
View insulation green roof
Inclined Green Roof
Green roof for pitched roofs up to 45°, specially designed for stable planting on sloping surfaces.
View sloped green roof
Retention roof (blue roof)
Green roof with water buffering to reduce peak sewer load.
View retention roof
Biobased green roof
Green roof with natural, biobased materials such as cork, jute and hemp.
View biobased green roofCosts per type of green roof
Not every green roof is the same. Choosing a sedum roof, rooftop flower meadow or retention roof affects the installation costs, maintenance and benefits of the system. Below are the main differences.
Sedum roof
A sedum roof is the most commonly chosen form of green roof. Its relatively lightweight construction and limited maintenance requirements often make it the most economical option.
Sedum herb roof
A sedum herb roof combines sedum plants with herbs that provide more biodiversity and a more natural look.
Native rooftop flower meadow
A rooftop flower meadow contains native flowers and plants that are attractive to bees, butterflies and other pollinators. This creates a biodiverse rooftop habitat.
Biobased green roof
A biobased green roof is not a separate type of vegetation, but a sustainable version of a sedum roof, sedum herb roof or native roof flower meadow. Instead of traditional materials, it uses natural raw materials such as cork, hemp, jute and sheep’s wool.
Insulated roof
An insulated roof combines the advantages of a green roof with additional thermal insulation. As a result, you improve the energy performance of the building and benefit from extra comfort in summer and winter. Because of the additional insulation layer, the costs are higher than for a standard sedum roof.
Retention roof
A retention roof is designed to temporarily store and delay large amounts of rainwater. As a result, the system contributes to climate adaptation and water management.
Sloping green roof
Sloped roofs can also be greened. For this, a modified structure is used that prevents the vegetation layer from shifting.
Frequently asked questions about the cost of a green roof
The cost of a green roof starts at about €86 per m² for a sedum roof. Depending on the type of green roof, area and site situation, the cost can go up to about €175 per m² for a retention roof.
A sedum roof costs on average from €86 per m² including materials and installation. The final price depends on the size of the roof and the accessibility of the location.
Yes, all prices on this page are indicative all-inclusive starting prices. Materials, vegetation, construction and finishing are included.
Many municipalities and water boards offer subsidies for green roofs. The amount of the subsidy varies by region and can offset a significant portion of the investment.
In many cases, yes. In larger projects, material and construction costs can be divided more efficiently, often lowering the price per square meter.
Our calculator will give you an immediate indication of the costs. If you would like to receive an exact price, you can request a no-obligation quote or schedule a consultation.
