📐 Estimate it guides

What work, repairs and renovations should cost — and what moves the number.

• 📐Estimate it2 min read

  Does a loft conversion need planning permission?

  Many loft conversions in England don't need a planning application — but almost all need building regulations approval. Here's how to tell.

  30 October 2026

• 📐Estimate it2 min read

  Rising damp, penetrating damp or condensation? How to tell the difference

  Different kinds of damp need very different fixes. Knowing the signs helps you ask the right questions before paying for treatment.

  22 October 2026

• 📐Estimate it3 min read

  Do I need planning permission for a rear extension?

  Many single-storey rear extensions in England can go ahead under permitted development — but the limits are specific, and some homes don't qualify at all.

  19 October 2026

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  📐Estimate it2 min read

  What actually drives the cost of a house extension

  Why two extensions of the same size can differ by tens of thousands, and which decisions carry the most weight.

  17 August 2026

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  📐Estimate it2 min read

  What a bathroom refit really costs — and where the money goes

  A breakdown of where your budget actually goes in a bathroom refurbishment, from first fix to the final silicone bead.

  3 August 2026