Character cannot be bought with a quotation
A mature garden, old stone walls, a well-proportioned terrace: some homes have qualities a new building cannot immediately offer. At the same time, the desire to create something personal can make it tempting to underestimate the work. “We will only redo the bathrooms” sounds manageable until pipework, waterproofing and adjoining rooms become involved.
Separate the home’s emotional appeal from its technical assessment. Both are allowed to matter. One should simply not stand in for the other.
Three packages rather than one renovation figure
Our planning suggestion: package one covers safety and functionality, such as electrical checks, causes of damp or failed equipment. Package two concerns the comfort you want. Package three contains purely aesthetic wishes. Have the work and its dependencies documented: finishing a surface makes little sense if pipes behind it still need replacing.
For each item, include the scope of work, the basis of the price and any unresolved assumptions. A quote “from” a certain amount is not yet a reliable overall budget. Ask the relevant professionals which permissions and plans are required before promising a move-in date.
Read the energy certificate as a starting point
The energy performance certificate classifies a building’s calculated energy consumption and CO₂ emissions. IDAE explains the purpose of this rating. For buyers, it is a starting point for more targeted investigation of the building envelope and systems; it does not replace an individual consumption forecast. Source: IDAE · Building energy performance certificates.
Also ask for existing bills and how the home was used at the time. The electricity bill for a rarely occupied house cannot be directly compared with that of a year-round home. Before selecting new equipment, establish which rooms will be used, how they will be used and where heating or cooling is being lost.
Include the months before moving in
The project cost also includes spending away from the building site: temporary accommodation, journeys, storage and, where applicable, financing during the works. Add a reserve for items that have not yet been clarified. Its size should reflect the level of investigation, rather than a fixed rule of thumb applied to every building.
Compare this total with a genuinely comparable move-in-ready property. The existing villa may still be the better choice because its location and character are an exceptional fit. That is then a considered decision. If only the initial asking price is convincing, it is worth taking another look at the alternatives.
Sources & methodology
Research and editorial date: 20 October 2026. Sources last accessed on that date. Our interpretation and illustrative calculations are distinguished from published market data. General information does not replace checks on a specific property or contract.
