Cost Effective Extensions

Gary Newell • 1 August 2023

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At Jigsaw Construction Surrey Ltd, we build many extensions for our clients who each have their own budget and reasons for their extension. How cost effective the extension is for each client, varies due to the different factors involved. However, we have put together some of the most cost-effective extensions from a general perspective below:


Loft Conversions

Converting your loft into a functional living space is a popular way to extend your home and increase living space. Having this extra space is perfect for a growing family or overcrowded home. Loft conversions can provide an additional bedroom, office, or playroom and they can increase the value of your home by around 20%.


Garage Conversions

Many properties have an unused garage or use the garage as storage. By converting it, you can increase your family’s living space, and increase the value of your home. A garage conversion can create a new bedroom, home office, or gym. Using existing space rather than building additional space from scratch also saves considerable building costs.


Conservatories

Modern conservatories are extremely versatile and secure, and can serve as an office space, a dining room, an extra living room, a children's playroom, or additional living space. It's a relatively affordable extension option and provides a bright and airy atmosphere. You can choose from various designs and sizes to suit your needs and budget.


Rear Extensions 

This type of extension often involves extending the kitchen or living area. It may require planning permission, but it can add significant value and functionality to your home. A rear extension can transform a home, creating more space at the back of the house and opening it up to the garden. It can be a great solution for terraced houses or for properties that do not have a side return. However, if you do have a side return you can combine a side return extension with a rear extension and maximise the space you have available with a wrap-around extension, making the most of unused outdoor space.


Garden Room

A garden room or a small outbuilding in your backyard can provide additional space for various purposes. It can serve as a home office, studio, or leisure area. Garden rooms are often more cost-effective than traditional extensions as they require less construction work.


 

Porch Extensions 

Adding a porch to the front or rear entrance of your home can be a cost-effective way to enhance your property's curb appeal and provide extra storage space. Porch extensions can be relatively simple structures or more elaborate designs, depending on your preferences.


Basement Conversions

If you have an existing basement, converting it into habitable space can be a cost-effective way to expand your home. This option requires careful planning and consideration of damp proofing, ventilation, and natural light. Some examples of uses for basement conversions include extra bedrooms, a home theatre, or a playroom.


Ways to Cut the Costs of an Extension


If you do want to go ahead with an extension but have limited a limited budget, here are some ways to reduce costs:


1.     Thoroughly plan and design your extension before starting the construction. This will help you avoid costly changes and revisions during the build. Consider the layout, materials, and finishes that offer the best value for your budget.


2.     Determine a budget for your extension and stick to it. Research and gather quotes from different builders and suppliers to get a clear idea of the costs involved. Be sure to include contingencies for unexpected expenses that may arise during the project. Don't automatically choose the lowest quote; instead, evaluate the experience, expertise, and reputation of the builders before making a decision.


3.     If you have the necessary skills and experience, you can consider taking on some of the work yourself or self-managing the project. However, be realistic about your abilities and ensure you can complete the tasks to a high standard. It's important to know when to hire professionals for certain aspects of the project to avoid costly mistakes.



4.     Maximizing the use of existing space can help reduce the overall cost of your extension. As mentioned above, consider converting a loft or garage rather than building a new structure from scratch. This can save on foundation work and some construction costs.


5.     Explore cost-effective building materials that still meet your quality requirements. For example, using engineered wood instead of solid hardwood for flooring or choosing durable but less expensive roofing materials can help lower costs.


6.     Consult with a structural engineer to ensure your extension meets building regulations but avoid over-engineering. Excessive structural work can significantly increase costs. Opt for designs that are structurally sound and efficient without unnecessary complexities.


7.     Gather quotes from multiple suppliers for materials like windows, doors, fixtures, and fittings. Compare prices and quality to find the best deals without compromising on the desired functionality and aesthetics.


Remember, while it's essential to cut costs, it's equally important to maintain quality and adhere to building regulations. At Jigsaw Construction Surrey Ltd, we provide an end-to-end service and work with you to find the best solutions for your budget. We ensure your extension is safe, structurally sound, and compliant with local regulations.


Visit https://www.jcs-ltd.co.uk/#ContactUs and find out how we can help you with your extension. 


by Lisa Woolnough 2 January 2026
Introduction A new year brings fresh ideas — especially for homeowners thinking about upgrading or extending their living space. As we step into 2026, many people across Surrey are re-evaluating how their homes look, feel, and function. At Jigsaw Construction Surrey Ltd , we’ve already seen clear patterns emerging in the types of projects homeowners are enquiring about. From smarter layouts to eco-friendly upgrades, 2026 is shaping up to be a year focused on comfort, practicality, and long-term value. Here are the top home renovation trends we expect to see this year — and how they can transform your home. 1. Open-Plan Kitchen & Living Spaces Open-plan layouts continue to dominate renovation plans, and 2026 is no different. Homeowners want brighter, more sociable spaces that bring families together and improve daily living. Why it’s trending: Better natural light More space for entertaining A modern, spacious feel Great for property value For older Surrey homes with smaller rooms, removing walls or reconfiguring layouts can completely transform the way the home feels. 2. Energy-Efficient Upgrades With increasing focus on rising energy costs and sustainability, energy efficiency remains one of the biggest renovation priorities this year. Popular upgrades include: High-performance insulation A-rated windows and doors Underfloor heating Smart thermostats and TRVs Heat pumps and efficient boilers These improvements not only reduce bills—they make your home more comfortable year-round. For eco-conscious families, sustainability is no longer a bonus; it’s essential. 3. Garage Conversions and Loft Conversions Space is at a premium in Surrey, and homeowners are looking for ways to maximise what they already have. Conversions continue to be one of the most affordable and effective solutions. Why conversions are booming: No need for large extensions Faster completion times Great for home offices, bedrooms, gyms or playrooms Adds significant property value At Jigsaw Construction Surrey Ltd, garage conversions remain one of our most in-demand services heading into 2026. 4. Garden Rooms & Outdoor Office Spaces With flexible working now a long-term reality, many homeowners want functional, year-round garden rooms. Uses include: Home office Studio or workshop Guest room Gym Entertainment room These spaces offer a private, comfortable place to work or relax — without the cost of a full extension. 5. Sustainable & Natural Building Materials Homeowners are increasingly choosing environmentally conscious options in their renovations. Popular materials include: Sustainably sourced timber Natural stone Low-VOC paints Recycled or reclaimed materials These choices reduce environmental impact while giving homes a modern, stylish, and timeless finish. 6. Budget-Friendly Mini Renovations With many families keeping a closer eye on spending, smaller renovations are becoming more popular — offering big impact without breaking the bank. Examples include: Updating kitchens with new doors/worktops Modern bathroom refreshes New flooring Improved lighting Minor layout tweaks Internal redecoration for a fresh, modern feel These upgrades are perfect for improving comfort and adding value without committing to major works. Final Thoughts 2026 is all about smart, sustainable, and meaningful home improvements. Whether you want more space, better efficiency, or an entirely new layout, there’s never been a better time to plan your renovation. At Jigsaw Construction Surrey Ltd , we’re proud to help Surrey homeowners transform their properties with skilled craftsmanship, transparent service, and a friendly team you can rely on. 👉 Thinking of renovating in 2026? Contact Jigsaw Construction Surrey Ltd today for a free consultation and let’s bring your plans to life.
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