extensions<\/h2><\/div>Increase the space and value of your property with a controlled extension, from design to completion.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
![](\"https:\/\/buildgroupconsult.com\/wp-content\/uploads\/2026\/02\/hf_20260225_152341_e57f935f-5318-405c-8768-e2d423d521c6.jpeg\" "\\"hf_20260225_152341_e57f935f-5318-405c-8768-e2d423d521c6\\"")
<\/span><\/div><\/div>Raising a building<\/h5><\/div>Addition of one or more storeys to an existing house or building, subject to technical and urban planning feasibility.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div>![](\"https:\/\/buildgroupconsult.com\/wp-content\/uploads\/2026\/02\/hf_20260225_152356_e54c60f3-f437-4df6-b281-b11e871eb64d.jpeg\" "\\"hf_20260225_152356_e54c60f3-f437-4df6-b281-b11e871eb64d\\"")
<\/span><\/div><\/div>Horizontal extension<\/h5><\/div>Extend the front, back or side of a home to create new living or work spaces.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div>![](\"https:\/\/buildgroupconsult.com\/wp-content\/uploads\/2026\/02\/hf_20260225_152406_9aad2bcd-5439-428f-bdd6-148609c3287a.jpeg\" "\\"hf_20260225_152406_9aad2bcd-5439-428f-bdd6-148609c3287a\\"")
<\/span><\/div><\/div>Annex construction<\/h5><\/div>Installation of a second building in the garden (office, home or multi-purpose space), in accordance with applicable planning regulations.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div>Technical & feasibility study<\/h2><\/div>Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Impact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Change of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Creation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Progress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Budget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Clear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
Increase the space and value of your property with a controlled extension, from design to completion.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
<\/span><\/div>Raising a building<\/h5><\/div>Addition of one or more storeys to an existing house or building, subject to technical and urban planning feasibility.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/span><\/div><\/div>Horizontal extension<\/h5><\/div>Extend the front, back or side of a home to create new living or work spaces.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/span><\/div><\/div>Annex construction<\/h5><\/div>Installation of a second building in the garden (office, home or multi-purpose space), in accordance with applicable planning regulations.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div>Technical & feasibility study<\/h2><\/div>Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Impact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Change of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Creation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Progress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Budget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Clear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
Addition of one or more storeys to an existing house or building, subject to technical and urban planning feasibility.<\/p>\n<\/div><\/div><\/div><\/div>
<\/span><\/div>Horizontal extension<\/h5><\/div>Extend the front, back or side of a home to create new living or work spaces.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/span><\/div><\/div>Annex construction<\/h5><\/div>Installation of a second building in the garden (office, home or multi-purpose space), in accordance with applicable planning regulations.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div>Technical & feasibility study<\/h2><\/div>Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Impact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Change of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Creation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Progress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Budget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Clear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
Extend the front, back or side of a home to create new living or work spaces.<\/p>\n<\/div><\/div><\/div><\/div>
<\/span><\/div>Annex construction<\/h5><\/div>Installation of a second building in the garden (office, home or multi-purpose space), in accordance with applicable planning regulations.<\/p>\n<\/div><\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div>\n<\/div><\/div><\/div><\/div><\/div>Technical & feasibility study<\/h2><\/div>Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Impact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Change of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Creation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Progress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Budget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Clear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
Installation of a second building in the garden (office, home or multi-purpose space), in accordance with applicable planning regulations.<\/p>\n<\/div><\/div><\/div><\/div>
Technical & feasibility study<\/h2><\/div>Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
A technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Impact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Change of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Creation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Progress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Budget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>\n
Clear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
Before any extension, a thorough analysis is essential.<\/p>\n
Depending on the nature of the project, Build Group Consult coordinates :<\/p>\n<\/div>
- <\/i><\/span>\n
An architect (mandatory in Belgium for most extensions)<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nA stability engineer when the structure is impacted<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nA technical and budgetary feasibility study<\/p>\n<\/div><\/li><\/ul>
This step guarantees the safety of the building and the long-term viability of the project.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Planning permission & compliance<\/h2><\/div>
Most extensions require planning permission when :<\/p>\n<\/div>
- <\/i><\/span>\n
Volume modification<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nImpact on structure<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nChange of exterior appearance<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nCreation of a new building<\/p>\n<\/div><\/li><\/ul>
Build Group Consult assists you in analyzing your obligations, preparing your application and providing administrative support.<\/p>\n<\/div><\/div><\/div>
<\/div><\/div><\/div><\/div>Follow-up & coordination<\/h2><\/div>
An extension involves several trades and careful planning.<\/p>\n
We provide :<\/p>\n<\/div>
- <\/i><\/span>\n
Coordination between architects, engineers and contractors<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nProgress monitoring<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nBudget and deadline control<\/p>\n<\/div><\/li>
- <\/i><\/span>
\nClear communication with the customer<\/p>\n<\/div><\/li><\/ul><\/div><\/div>
<\/div><\/div><\/div><\/div><\/div><\/div><\/div>+25<\/div><\/div>years of experience<\/p>\n<\/div><\/div><\/div>
Our commitment<\/p>\n
<\/h4><\/div>
We guarantee quality, efficiency and solid expertise, for your comfort.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n
Bring your project to life<\/p>\n<\/div>
Do you have an idea, a project or a thought in progress?<\/p>\n
We support you every step of the way, with expertise and transparency.<\/p>\n<\/div>
- <\/i><\/span>
- <\/i><\/span>
- <\/i><\/span>