Frequently Asked Questions


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How to build a house extension?

To build a house extension, we recommend to begin by consulting with an architect or designer to create detailed plans that meet local building regulations, then hire a reputable construction company to carry out the work, ensuring quality craftsmanship and adherence to the approved designs. We work with a top local architect so we can help you with the process right from the start.

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How much does a house extension cost?

The cost of a house extension in Edinburgh and surrounding areas including the Lothians or Fife varies widely, typically ranging from £1,400 to £2,500 per square metre. Prices may vary based on the size, complexity of the project, materials chosen, and specific local requirements. More bespoke or high-end extensions potentially exceeding these estimates. For a fixed price quote contact us.

How to find a builder for extension?

When looking for a builder for an extension, it’s always best to start with recommendations. Alternatively you may find builders online by looking on Google, or Builder directories like Trusted Trader or myBuilder. Ensure to prioritise those with extensive experience in similar projects, a solid portfolio of completed extensions, positive customer reviews, and relevant insurance and certifications. It’s also crucial to assess their communication skills and willingness to provide a detailed contract and clear, competitive quotes. Visit our projects page to see our portfolio and reviews from our happy customers.

What does house extension mean?

A house extension refers to the process of adding additional space or rooms to an existing building, enhancing living space and potentially increasing the property’s value. It can range from small additions like sunrooms to larger multi-storey expansions.

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What types of house extensions do you provide?

We offer various types including single-storey house extensions, multi-storey house extensions, rear extensions, side extensions, conservatories, loft conversions, garage conversions, structural alterations and over-structure extensions. Each type is designed to suit different needs, preferences, and site conditions. For more information visit our Services page.

Questions to ask a builder when building an extension

When selecting a builder for your extension, focus on these top three questions to ensure you’re making a well-informed decision:

  1. Can you provide a detailed quote? – This ensures transparency about costs and helps avoid unexpected expenses.
  2. Do you have experience with similar projects? – Confirming their experience with extensions like yours guarantees they have the necessary skills and knowledge.
  3. Are you licensed and insured? – Verifying their professional credentials and insurance coverage protects you against liability and ensures the quality of the work.

We provide fixed price quotes on extension projects, and we are licensed and insured for both our and your protection. Visit our projects page to see our portfolio and reviews from our happy customers.

What size extension can I build without planning permission in Scotland?

In Scotland, you can typically build a single-storey rear extension up to 4 meters deep for a detached house and 3 meters for other house types without planning permission, provided it doesn’t cover more than 50% of the surrounding land and adheres to certain height restrictions. Always confirm with your local council as regulations can vary.

What are the rules on house extensions?

In Scotland, house extensions must comply with size, height, and material guidelines under Permitted Development Rights, and should not cover more than 50% of the surrounding land. Always verify with your local council, as specific rules can vary, and remember that building regulations approval is necessary to ensure safety and compliance.

What documents are required for a home extension project?

In Scotland, essential documents for a home extension include architectural plans, a Building Warrant, planning permission if required, and neighbour agreements for boundary-related work, adhering to Scottish Building Standards.

How long do house extensions take to complete?

House extensions can vary in completion time, typically ranging from 10 to 16 weeks for a straightforward single-storey extension, to several months or more for complex multi-storey or bespoke projects, depending on the scale and complexity of the work involved.

Do I need to move out of the house?

Whether you need to move out during a house extension largely depends on the scale and nature of the project. For minor extensions and renovations, you may be able to stay in your home, albeit with some inconvenience. However, for extensive projects that significantly affect living areas or utilities, temporarily relocating might be necessary for comfort and safety.

Is planning permission required for a house extension?

In Scotland, many house extensions can proceed without planning permission under Permitted Development Rights if they meet specific size, height, and location criteria, but it’s crucial to consult with your local council as exceptions and local variations apply.

Will a house extension increase the value of my property?

Yes, a well-designed and executed house extension can significantly increase the value of your property by enhancing its size, functionality, and appeal to potential buyers, though the exact increase depends on factors like the quality of work and the property’s location.

Are you insured?

Yes, we have full public liability insurance.

Do you offer a warranty?

We offer 1 year warranty from completion of project.

Our Address

Muirfield Construction

19 Douglas Crescent, Bonnyrigg, Midlothian, Scotland, EH19 2DG

Company number SC754226