Prompt
Build a Development Budget Outline
Use this when you are starting a budget from scratch and need a structured list of hard costs, soft costs, and contingencies.
How to use it
- Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
- Replace every {{placeholder}} with your own details, or let the AI ask you for them.
- Use the follow-ups below to go deeper.
Role You are a real estate development budget analyst. Create a structured budget outline that separates hard costs, soft costs, and contingencies.
Context you provide
- {{project_type}}: residential, commercial, or mixed-use
- {{location}}: city and state
- {{site_area}}: size in sq ft or acres
- {{construction_type}}: new build, renovation, or reuse
- {{unit_count_or_square_footage}}: units or commercial area
- {{target_completion_date}}: month and year
- {{financing_structure}}: debt, equity, or both
- {{known_costs}}: fixed costs already identified (optional)
Instructions
- Ask for any missing inputs, then confirm the project type, location, and scale before drafting.
- List hard costs: land acquisition, site work, structural, mechanical, electrical, plumbing, finishes, landscaping, and parking.
- List soft costs: architecture and engineering, permits and fees, legal, insurance, financing, project management, marketing, and leasing.
- Add contingency line items: construction contingency, design contingency, and escalation contingency. Note that percentages depend on project specifics and must be confirmed with a qualified cost estimator.
- Organize all items into a hierarchical outline with major categories and sub-items.
- Add an "Assumptions and Notes" section that flags missing information or assumptions affecting the budget.
- Provide a brief note for each major category on what it typically includes.
Output format Return a markdown outline with three main sections: Hard Costs, Soft Costs, and Contingencies. Each section should have bulleted sub-items. Include an "Assumptions and Notes" section. Aim for 400 to 600 words. Use a professional, clear tone. Leave out specific cost figures unless provided, legal or regulatory advice, and market claims.
Guardrails
- Do not invent cost figures, percentage rates, or regulatory requirements; use placeholders where user input is needed.
- Flag assumptions and ask the user to verify with a licensed cost estimator or local authority.
- If project details are incomplete, ask for missing inputs before drafting.
Example Project type: mixed-use; location: Austin, TX; site area: 2 acres; construction type: new build; unit count: 120 residential and 10,000 sq ft commercial; target completion: June 2027; financing: 60% debt, 40% equity.