Everything about house extension advice, British home renewal ideas, UK property restoration tips

Everything About House Extension: Tips, Ideas, and Average Cost

6 October 2023

In big cities like London, making the most of your home is essential. Many homeowners are turning to house extensions to get more space and improve their homes. This guide will give you all you need to know about this topic, from ideas to important things to consider.

Everything about house extension: tips, ideas & costs

Why Consider a House Extension?

The allure of house extensions goes beyond mere space addition. They represent a fusion of aspirations, practicality, and financial prudence.

  • Meeting Evolving Needs: As families expand or lifestyles change, the need for additional rooms or specialized spaces, such as home offices, becomes evident.
  • Financial Wisdom: With the soaring costs associated with moving, especially in metropolitan areas, extensions often present a more economical solution.
  • Boosting Property Value: A well-designed extension can significantly elevate a property’s market value, making it a sound investment for the future.
  • Popular House Extension Ideas

  • House extensions are a canvas for creativity, allowing homeowners to experiment with designs, materials, and functionalities. From maximizing space to introducing contemporary design elements, extensions can redefine the aesthetics and utility of a home.
  • Side Extension Ideas

  • Side extensions are becoming increasingly popular, especially in urban settings where space is limited. They offer a blend of functionality and design versatility.
  • Advantages of Side Extensions

Optimal Space Utilization: Especially beneficial for terraced houses, they can transform neglected areas, such as side alleys, into functional spaces like a new kitchen or lounge area.

Design Flexibility: Homeowners can choose from various designs, whether they prefer a traditional brick finish or a sleek, modern look with glass and steel.

Budget-Friendly Options: With a variety of materials and designs available, side extensions can cater to different budgets. Modular or pre-fabricated extensions, for instance, can be more cost-effective than custom-built ones.

  • Creative Concepts for Side Extensions

  • Open-Plan Living: One of the prevailing design trends is open-plan living. By merging the living, dining, and kitchen spaces, homes can feel more spacious and interconnected, fostering better family interactions and entertaining opportunities.
  • Maximizing Natural Light: Incorporating large windows, skylights, or even sliding glass doors can illuminate the space with natural light. This enhances the mood and can lead to energy savings in the long run.
  • Incorporating Green Elements: With a growing emphasis on sustainability, many homeowners are integrating green elements into their extensions. This could be in the form of green roofs, vertical gardens, or using sustainable building materials.

London house extension UK

Rear House Extension Ideas

Rear extensions offer versatility and aesthetic appeal, making them popular among homeowners.

Benefits of Rear Extensions

  • Diverse Functionalities: Whether you desire a luxurious kitchen, a sunroom, or a play area, they can cater to varied needs.
  • Seamless Indoor-Outdoor Transition: The garden can become a natural extension of the living space with the right design, such as bi-fold doors or large sliding doors.

Design Inspirations for Rear Extensions

  • Garden Views: Positioning the extension to offer panoramic garden views can create a serene environment, perfect for relaxation.
  • Multi-Level Extensions: For properties with ample garden space, multi-level rear extensions can add space and character to the home.

Navigating the Financial Aspects of House Extension

Embarking on a house extension project requires a clear understanding of the associated costs and potential financial benefits.

Factors Influencing Extension Costs

  • Design Intricacy: Customized designs with specialized materials or finishes can elevate costs.
  • Geographical Variations: Locations like London or Isleworth might have premium construction costs due to higher demand and logistical nuances.

Estimating Average Costs

While costs can vary, a ballpark figure for a house extension in London ranges from £1,500 to £2,500 per square meter. It’s prudent to obtain multiple quotes and set aside a contingency budget for unforeseen expenses.

London home extension England UK

The Imperative of Choosing the Right Professionals

Embarking on a house extension project is both exciting and daunting. The outcome largely depends on the professionals you choose to bring your vision to life. With the high costs involved and the project’s personal nature, ensuring you’re working with a reputable team is crucial.

Criteria for Selecting a Professional Team

  • Experience and Expertise: Look for companies with a history of successful projects. Their experience can help navigate challenges and deliver quality work.
  • Client Testimonials: Positive feedback from previous clients can give you confidence in the company’s reliability and quality of work.
  • Transparency: A good company will be upfront about costs, potential challenges, and timelines. They should provide clear contracts and be open to answering any questions.
  • Materials Sourcing: Ensure the company has a transparent process for sourcing quality materials. This can affect both the quality and cost of the project.
  • Cost Evaluation: While it’s tempting to go with the cheapest offer, ensuring that the cost aligns with the quality of work provided is essential.

Avoiding Scams and Ensuring Quality

  • Research: Before committing, research the company online. Look for reviews, any news articles, or feedback on social media.
  • Ask for References: A reputable company will provide references from past clients. Take the time to reach out and get firsthand feedback.
  • Payment Structure: Be wary of companies asking for a large upfront payment. A staggered payment structure based on project milestones is standard.
  • Written Contract: Always insist on a written contract detailing the scope of work, costs, timelines, and any other essential details.
  • Material Procurement: Some companies might inflate costs by overcharging for materials. It’s advisable to clearly understand material costs and, if possible, an option to source them yourself.

Fittra has established itself as a leader in the house extension industry thanks to its commitment to quality, transparency, and client satisfaction. Their extensive portfolio and positive client testimonials make them a top choice. With a straightforward communication approach, they ensure clients are informed at every project stage, from design consultations to post-completion services.


House extensions represent a confluence of vision, practicality, and financial investment. When executed with precision and expertise, they can transform living spaces, adding tangible and intangible value. As urban landscapes evolve, extensions offer homeowners a viable solution to adapt without relocating. Partnering with seasoned professionals ensures that the journey from conception to completion is seamless and rewarding.

Comments on this guide to Everything about house extension: tips, ideas & costs article are welcome.

Property Designs

Glasgow Architecture Designs – architectural selection below:

Glasgow Houses

Glasgow House Prototype

50 Bothwell Street Office News
50 Bothwell Street Glasgow office refurbishment
image courtesy of architects practice
50 Bothwell Street Office Redevelopment

Comments / photos for the Everything about house extension: tips, ideas & costs advice page welcome