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double storey extension cost

Cost Guide for Double Storey House Extension in the London

david jon 3 weeks ago 0 6

Are you considering a double-storey house extension in London but need clarification on the costs? Look no further! This article provides a comprehensive cost guide to help you plan your project accurately.

With its vibrant real estate market, London presents unique challenges when extending your home. Whether you want to add an extra bedroom, a spacious living area, or a new kitchen, understanding the cost implications is crucial. Each aspect of your extension, from structural work to materials and finishes, comes with its price tag.

To give you an idea, a single-storey extension in London can cost anywhere between £30,000 to £50,000, while a double storey extension cost can range from £60,000 to £100,000 and above. However, it’s important to note that these figures are approximate and can vary based on location, size, design, and quality.

Knowing the estimated costs can help you plan your budget effectively and avoid surprises. So, Visit to explore the cost breakdown of a double-storey house extension in London!

Factors Affecting the Cost of Double-Storey House Extensions

Several factors come into play regarding the cost of a double-storey house extension in London. These factors can significantly impact the overall cost of your project. Let’s take a closer look at each of them:

  1. Location: Your property’s location is crucial in determining the cost of your double-storey house extension. Due to increased demand and limited space, properties in prime areas of London tend to have higher construction costs. On the other hand, properties in less central areas may have lower construction costs.
  2. Size: The size of your extension is another essential factor to consider. A more considerable double-storey extension will cost more than a smaller one. The additional space you require will influence the overall cost of your project.
  3. Design and Complexity: The design and complexity of your double-storey house extension can significantly impact the cost. If your extension involves intricate architectural features or unconventional designs, expect the fees to be higher. Similarly, additional expenses may be incurred if your extension requires structural changes or modifications.
  4. Materials and Finishes: The choice of materials and finishes can also affect the cost of your double-storey house extension. High-quality materials and premium finishes will generally come at a higher price. However, choosing cheaper materials may compromise your extension’s overall quality and durability.
  5. Access and Site Conditions: The accessibility of your property and the site conditions can also influence the cost of your double-storey house extension. If your property is difficult to access or the site conditions pose challenges, additional equipment, labour, and logistics fees may be incurred.

Understanding these factors will help you better understand the cost implications of your double-storey house extension in London.

Double Storey House Extension Cost per m2

Calculating the cost per square meter (m2) is a standard method for estimating the price of a double-storey house extension. The price per m2 can vary depending on the factors mentioned earlier. The average cost per m2 for a double-storey house extension in London ranges from £1,500 to £3,000.

It’s important to note that this cost includes the construction work, materials, labour, and fees associated with the extension project. However, it may not cover additional expenses such as architectural fees, planning permission fees, and any unforeseen costs that may arise during construction.

To calculate the cost per m2 for your double-storey house extension, divide your project’s total cost by the total floor area. This will give you an approximate price per m2, which can be a starting point for your budgeting process.

double storey extension cost

Double Storey House Extension Cost Examples

To provide you with a better understanding of the cost implications, let’s explore a few examples of double-storey house extensions in London:

  1. Example 1:
  • Location: Central London
  • Size: 40m2
  • Design and Complexity: Simple
  • Materials and Finishes: Standard quality
  • Access and Site Conditions: Easily accessible
  • Estimated Cost: £80,000 – £120,000
  1. Example 2:
  • Location: Suburban London
  • Size: 60m2
  • Design and Complexity: Moderate complexity with some architectural features
  • Materials and Finishes: High-quality materials and finishes
  • Access and Site Conditions: Moderate accessibility
  • Estimated Cost: £120,000 – £180,000
  1. Example 3:
  • Location: Prime London
  • Size: 80m2
  • Design and Complexity: Complex design with unique architectural features
  • Materials and Finishes: Premium quality materials and finishes
  • Access and Site Conditions: Challenging accessibility
  • Estimated Cost: £200,000 and above

These examples estimate the cost range for different double-storey house extensions in London. However, to get an accurate cost estimation, it is important to consult with professionals and obtain detailed quotes for your specific project.

Extension Architecture: Hiring Professionals for Double Storey Project

Hiring professionals can make a significant difference when planning and designing your double-storey house extension. An experienced architect or architectural firm specialising in house extensions can help you bring your vision to life while ensuring that your project meets building regulations and requirements.

Working with professionals will help you create a well-designed and functional extension and assist in managing the costs effectively. They can provide valuable insights and recommendations on material selection, construction methods, and cost-saving opportunities without compromising quality.

Additionally, professionals can guide you through the planning permission process, ensuring that all necessary permits and regulations are met. This can save you time, effort, and potential fines associated with non-compliance.

Before hiring professionals for your double-storey house extension project, it’s essential to do thorough research, check their credentials, and review their previous work. Obtain multiple quotes and compare them to find the best fit for your project.

Permits and Regulations for Double-Storey House Extensions in London

Before embarking on your double-storey house extension project in London, it’s crucial to understand the necessary permits and regulations. Please comply with these requirements to avoid delays, penalties, and even the demolition of your extension.

In most cases, a double-storey house extension will require planning permission from the local authority. The planning permission process ensures that your extension meets the necessary regulations, such as building height restrictions, heritage considerations, and neighbourhood impact.

Additionally, building regulations must be followed to ensure your extension’s structural integrity, safety, and energy efficiency. Building regulations cover various aspects of the construction, including foundations, walls, windows, insulation, ventilation, and fire safety.

To navigate the permit and regulation process smoothly, working with professionals with experience dealing with local authorities and obtaining the necessary approvals is advisable. They can guide you through the paperwork, provide the required documentation, and ensure that your extension complies with all regulations.

Conclusion: Making an Informed Decision for Your Double-Storey House Extension Project

A double-storey house extension in London can significantly invest time and money. By understanding the factors that affect the cost, calculating the price per m2, exploring cost examples, and hiring professionals, you can make an informed decision and plan your project effectively.

Remember to consider aspects such as location, size, design, materials, and access when estimating the cost of your extension. Consulting with professionals and obtaining detailed quotes will help you get an accurate cost estimation specific to your project.

Remember to navigate the necessary permits and regulations to ensure a smooth and compliant construction process. Working with professionals with expertise in navigating the planning permission and building regulations will save you time, effort, and potential legal issues.

You can confidently embark on your double-storey house extension project in London with a comprehensive understanding of the cost implications and the necessary steps involved. A well-planned and beautifully executed extension will add value to your property and enhance your living space for years.

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