Proper Job

By SR3H LTD

Overview

Estimate building and renovation costs from what you know, then refine the price with size, location, scope and readable plans. Uses country-specific benchmarks in local currency for supported work in the United Kingdom, United States, Australia, New Zealand, Ireland, Germany, France, Spain, Canada, Japan and India. Available work types vary by country. Unsupported work is identified rather than priced as if supported. Compare Budget, Standard, Premium and Luxury in the interactive card. Use metric or imperial measurements; Japanese inputs also support tatami and tsubo. See the price breakdown and add optional details without starting again. When you attach readable drawings in ChatGPT, ChatGPT reads them and Proper Job calculates from the extracted quantities and scope. The calculator does not use a paid Proper Job drawing-extraction service or access your saved Proper Job jobs. ChatGPT account and attachment limits still apply. Prices are budget estimates, not quotes or professional advice. Check the stated assumptions, exclusions and applicable local requirements before committing to work.

Tools

calculate_building_work

ChatGPT

Use this when a user asks the cost of building, extending or renovating a home, remodelling a kitchen/bathroom, refining a budget or costing drawings, even without naming Proper Job. Computes repeatable local-currency estimates using versioned country-specific construction benchmarks, scope and allowance rules, checked measurement conversions and source-cited drawing quantities. Returns an interactive budget card, tax basis, exclusions and a refinementQuestion. After the card, ask that question in one short sentence when present; keep unknown details optional and do not repeat the country checklist. Supported work: GB, US, AU, NZ, IE, DE, FR, ES, CA, JP, IN; exact scope limits are in the schema and market-coverage resource. Do not substitute UK rates or exchange-rate conversions. Read the drawing skill before host-only attachment analysis; send reconciled structured facts in one call. Detailed trade costing is GB-only; other countries still accept drawing quantities. Reuse unchanged results and use the returned price without inventing or narrowing it. Country, language and units are independent. Do not use for property valuations, land-price discovery, account/project lookup, purchases, issued quotes or legal/safety certification.

calculate_guide_price

ChatGPT

Calculate the established GB/US Guide Price contract with its required project inputs, when explicitly requested or used with guide comparisons. For the conversational building budget, other countries or drawings, use calculate_building_work. Returns the original guide card and does not read files, save projects or issue quotes.

compare_guide_scenarios

ChatGPT

Compare GB/US Guide Price scenarios when the user explicitly asks to compare alternatives within those existing policies. Returns the original comparison card and deltas. For other countries or drawing-based refinements, use calculate_building_work with each requested scenario. No foreign-rate conversion or saved-project access.

get_estimate_requirements

ChatGPT

Retrieve UK/US input requirements or labelled reference examples when specifically requested. For a project budget, vague cost question or drawings, use calculate_building_work. Reference examples are not the user's project price. No account or drawing-file access.

Capabilities

InteractiveWrites

Example Prompts

Click any prompt to copy it.

Links

Documentation Privacy Policy

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