Homeowners looking to increase their living space and enhance property value often turn to home extensions.
Among the many options available, a double-storey extension is one of the most effective ways to maximize space without sacrificing garden or outdoor areas.
Whether you need extra bedrooms, a larger kitchen, or an additional living room, a double-storey extension can be a game-changer.
Double-Storey Extension
A double-storey extension involves adding two floors to an existing property, providing substantial additional space.
Unlike single-storey extensions, which expand outward and take up garden space, a double-storey extension builds upward, maintaining the property’s footprint while doubling the available space.
Typically, a double-storey extension is used to create:
- Ground Floor: Extended kitchen, dining room, home office, or living space.
- First Floor: Additional bedrooms, bathrooms, or a master suite.
Benefits of a Double-Storey Extension
A double-storey extension has numerous advantages, making it an attractive investment for homeowners.
1. Maximizing Space Efficiently
By expanding vertically, you get twice the space without significantly reducing garden or outdoor areas. This is ideal for urban properties where land is limited.
2. Cost-Effective Expansion
While a double-storey extension costs more than a single-storey extension, the cost per square meter is cheaper than building two extensions. You benefit from shared foundations and roofing, making it a more cost-efficient option.
3. Increases Property Value
A well-designed double-storey extension can add significant value to your property, often increasing the market price by 15–25%. Additional bedrooms and bathrooms are particularly appealing to potential buyers.
4. Improves Home Functionality
Families grow, and so do their needs. Whether you need extra bedrooms for children, a home office, or a spacious kitchen-diner, a double-storey extension adapts to your lifestyle.
5. Enhances Energy Efficiency
A double-story addition can lower heating and cooling expenses by increasing your home’s overall energy efficiency with contemporary insulation, glass, and building materials.
Planning and Permissions
Before starting your double-storey extension, it’s crucial to understand the planning and legal requirements.
- Do You Need Planning Permission?
In Weymouth, some extensions fall under permitted development rights, meaning you won’t need full planning permission if you meet specific criteria.
However, since a double-storey extension is a significant structural change, you will likely need planning permission from your local council.
- Building Regulations Approval
Regardless of planning permission, your double-storey extension must comply with Building Regulations to ensure safety, energy efficiency, and structural integrity.
Construction Process
A double-storey extension follows a structured building process to ensure safety and quality. Here’s a breakdown:
- Planning & Design
- Hire an architect to draft plans that align with your vision and comply with local regulations.
- Obtain necessary planning permissions and approvals.
- Finalize the budget and contractor agreements.
- Foundation & Structural Work
- Dig and lay strong foundations (usually deeper than single-storey extensions due to the additional weight).
- Construct load-bearing walls and framework for support.
- Roofing & Exterior Work
- Install roofing, windows, and doors to match the existing property style.
- Complete brickwork, insulation, and rendering for weather protection.
- Interior Fit-Out
- Electrical wiring, plumbing, and heating systems installed.
- Plastering, flooring, painting, and finishing work.
- Final Inspection & Approval
- Local building inspectors assess compliance with Building Regulations.
- The extension is completed and ready for use.
Design Ideas
A double-storey extension offers endless design possibilities. Here are a few ideas:
- Open-Plan Kitchen & Living Area
- Create a spacious kitchen-dining-living area on the ground floor.
- Incorporate bi-fold doors leading to the garden for an open feel.
- Additional Bedrooms & Master Suite
- Add extra bedrooms upstairs to accommodate a growing family.
- Design a luxurious master suite with an en-suite bathroom and walk-in closet.
- Home Office & Study Area
- Convert part of the extension into a quiet home office.
- Include built-in storage and large windows for natural light.
- Loft-Style Second Floor
- Opt for vaulted ceilings or skylights for a modern touch.
- Use glass partitions to enhance brightness.
Potential Challenges & Solutions
- Structural Complexity
- Solution: Work with an experienced architect and structural engineer to ensure a solid foundation and load-bearing support.
- Disruption During Construction
- Solution: Discuss with builders about a phased approach or temporary adjustments.
- Budget Overruns
- Solution: Set aside a 10-15% contingency budget for unexpected expenses.
Conclusion
A double-storey extension is a fantastic investment, offering more space, increased property value, and enhanced functionality. Dosert Extensions Group has got you covered.
Whether expanding your kitchen, adding bedrooms, or creating a home office, careful planning, budgeting, and expert guidance will ensure a smooth and successful project.
Considering planning regulations, design, costs, and construction, you can create a beautiful, functional, and valuable extension that enhances your home for years.