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  • Seth James

Cost of Home Extensions in 2024: What You Need to Know

As we step into 2024, the housing market continues to evolve, and more homeowners are considering the prospect of home extensions. Whether it's to add extra living space, accommodate a growing family, or increase the value of their property, the allure of home extensions remains strong. However, the cost implications of such ventures are a pivotal consideration. Let's delve into the current landscape of home extension costs in 2024.

Down to the numbers:

The cost of building an extension typically ranges from £1,500 to £2,250 per square meter of new internal space, excluding VAT. For example, a 30m² kitchen extension could be estimated at approximately £45,500 to £67,500, plus VAT at 20%.

If this seems rather broad, it's because it is. When details about the extension's design, materials, construction, and builders are unknown, the estimated cost range of £1,500-£2,250 per square meter is based on averages.

For those seeking to build a budget-friendly extension, several crucial considerations can impact project costs, including:

1. Ground conditions and necessary foundation type

2. Number of stories to be built

3. Size and shape of the extension

4. Quality of the build: standard, good, excellent

5. Involvement in the project

6. Desired amount of glazing

7. Inclusion of a kitchen or bathroom

8. Special features like renewables, air conditioning, smart home technology, etc.

Additionally, there are other expenses to consider beyond the construction itself, such as architect fees (around 8-10% of construction cost), structural engineer fees (2-3% of construction cost), measured survey costs (between £700-£1,800), ground investigation surveys, tree survey if trees are affected, ecology surveys, planning permission fees, Heritage Assessment for Listed Buildings, Building Regulations Fees, fitting out the extension, Party Wall Agreement costs if needed, and insurance to cover renovation and building work.

Material Costs and Inflation:

One of the most significant factors impacting home extension costs in 2024 is the price of materials. The past few years have seen fluctuations and increases in the cost of construction materials due to various factors including supply chain disruptions, inflation, and increased demand. As a result, homeowners planning extensions are likely to face higher material expenses compared to previous years.

Labour Costs:

Another crucial aspect to consider is the cost of labor. Skilled labor shortages, increased demand for construction services, and wage pressures have all contributed to rising labor costs in the construction industry. This, in turn, affects the overall cost of home extensions. Homeowners should be prepared for potentially higher labor expenses when budgeting for their extension projects.

Contact the team at to get a free quote today.

Regulatory Changes:

Regulations and building codes also play a role in the cost of home extensions. As environmental concerns and energy efficiency standards continue to shape the construction industry, compliance with new regulations may introduce additional costs. Homeowners should anticipate potential expenses related to meeting updated building codes and sustainability requirements.

Technological Advancements:

On the flip side, technological advancements have the potential to impact home extension costs in 2024. Innovations in construction techniques, sustainable materials, and prefab solutions may offer cost-effective alternatives for those considering home extensions. Embracing these advancements could potentially help mitigate some of the cost pressures associated with traditional construction methods.

Market Variability:

The cost of home extensions can also be influenced by regional and local market dynamics. Factors such as demand-supply imbalances, economic conditions, and geographical variations in construction costs can all contribute to the variability of home extension expenses. Homeowners should conduct thorough research and engage with local professionals to gain a clear understanding of the cost landscape in their specific area.

Financial Planning and Budgeting:

Given the potential variability and inflationary pressures, prudent financial planning is crucial for anyone considering a home extension in 2024. Establishing a comprehensive budget that accounts for material costs, labor expenses, regulatory compliance, and potential contingencies is essential. Moreover, exploring financing options and understanding the implications of borrowing for home improvement projects can help homeowners make informed decisions.

In conclusion, the cost of home extensions in 2024 is influenced by a multitude of factors, including material costs, labor expenses, regulatory changes, technological advancements, and market variability. As homeowners navigate the prospect of extending their properties, a thorough understanding of these cost dynamics is indispensable. By staying informed, conducting meticulous planning, and leveraging available resources, homeowners can make informed decisions and bring their home extension aspirations to fruition in a financially prudent manner.

Contact the team at to get a free quote today.

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