Getting a builder to quote from a vague description is one of the most reliable ways to end up in a dispute. You say "renovate the bathroom," they price one thing, and six weeks later you're arguing about whether the new floor tiles were included. A proper scope of works, sometimes called a spec or schedule of works, pins down exactly what is being done before anyone signs anything. The problem is that most people have never written one and don't know where to start.
This is where an AI assistant, something like ChatGPT, Claude or Gemini, can genuinely help. Not to replace a quantity surveyor on a big project, but to get your thoughts organised into a document that a builder or QS will actually recognise and take seriously.
Step 1: Gather your raw information before you open the chat
The AI can only work with what you give it. Before you type a single prompt, collect the following and have it in front of you:
- The address and a brief description of the property (house type, age if you know it, construction type if relevant)
- A plain-English description of every piece of work you want done
- Any constraints, planning conditions, protected structure status, or party wall considerations
- Any materials or finishes you have already decided on
- Your preferred payment structure if you have one (stage payments are standard in Ireland)
- Anything you are explicitly excluding from the builder's scope, for example if you are supplying your own tiles
Write all of this out roughly, even in bullet points. Do not worry about formatting or order yet.
Step 2: Write your first prompt with context and a clear instruction
Open the AI tool and paste in your rough notes. Then add a prompt around them. The key is to tell the AI exactly what format you need and who the audience is. A generic "write me a spec" will give you a generic document.
Here is a prompt structure that works well:
"I need you to write a detailed scope of works document for a building contractor in Ireland. The document should be organised by trade (groundworks, structural, roofing, first fix, second fix, etc.) and should use clear, numbered sections. Each section should describe what work is to be carried out, what materials or standards apply where relevant, and who is responsible for supplying materials where I have noted that. Here are my rough notes on the project: [paste your notes here]"
Ask it also to flag any areas where your notes are vague or where a QS or builder would likely need more detail before pricing. This is useful, because the AI will often catch things you have not thought about.
Step 3: Review the first draft critically
The AI will produce something that looks professional, but that does not mean it is accurate for your project. Read through it as if you were the builder quoting on it. Ask yourself whether someone reading this for the first time would know exactly what they were pricing.
Common things to check:
- Are room dimensions mentioned where they matter, for example for floor areas or plastering?
- Is the specification of materials specific enough, a "standard interior door" is not the same as a specific fire door rating?
- Are there any assumptions the AI has made that are not true for your project?
- Are stage payment triggers clearly defined if you included them?
Go back to the chat and correct or expand anything that needs it. You can treat the AI as a back-and-forth drafting partner here. Ask it to rewrite specific sections, add detail, or remove things that do not apply.
Step 4: Ask it to add standard clauses an Irish builder would expect
A scope of works for an Irish residential project usually includes a few standard sections beyond the work itself. Ask the AI to add these if they are not already present:
- A section on compliance with current Building Regulations and any relevant Irish Standards
- A clause on who is responsible for waste removal and site cleanliness
- Reference to the Health and Safety obligations of the contractor under Irish legislation
- A note on defects liability period, commonly twelve months for residential work here
You do not need to be a solicitor to include these. They are standard enough that most builders will expect to see them and will not be surprised. If you are doing anything beyond straightforward renovation, for example structural changes or an extension, you should have a professional check the final document before it goes out.
Step 5: Export, format and use it
Ask the AI to produce the final version in a clean, numbered format you can copy into a Word document or Google Doc. Save it as a PDF before sending it to any contractor. Keep the version with your original notes so you can show what you started from if there is ever a question about intent.
If you have already been thinking about the broader project with an AI tool, you might find this overlaps nicely with the planning stage. We wrote about using an AI chatbot to plan a kitchen renovation and the same principle applies, the clearer your inputs, the more useful the output.
One practical note: send the finished spec to every contractor quoting on the job, not just your preferred one. If everyone is pricing from the same document, comparing quotes becomes straightforward instead of a guessing game.