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The 10 Best AI Prompts for Property Descriptions on Idealista

ChatGPT, Claude and Gemini can write real estate descriptions, but the result depends almost entirely on the prompt you use. These 10 prompts are designed specifically for the Spanish property market and optimised for Idealista.

more enquiries generated by AI-optimised descriptions compared to manually written ones without structure
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Screenshot of a ChatGPT conversation using a specialized real estate prompt and the resulting 3-paragraph Idealista-ready description with all required elements

A specialized real estate prompt in action: the prompt on the left, the high-quality output on the right

The prompt is the instruction you give the AI. A poor prompt produces generic text that could describe any property in Spain. A well-built prompt lets you generate property descriptions with AI that are specific, keyword-rich, and structured the way Idealista's algorithm favours.

Here are the 10 prompts most used by professional real estate agents in Spain, with an explanation of when to use each one. For worked examples of the output they produce, see our real estate copywriting examples.

What a good prompt must include

Before the prompts, understand the basic structure that makes them work:

  • Role: "Act as an expert real estate agent in the Spanish property market"
  • Audience: "For families with children looking for a primary residence"
  • Property data: square metres, bedrooms, extras, area, condition
  • Format: length, paragraph structure, tone
  • Restrictions: do not use clichés like "bright" or "cosy" without justifying them with data
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The 5 components of an effective real estate AI prompt — role assignment ("You are a Spanish real estate expert"), property data, tone, length, and mandatory elements (energy certificate)

The 5 essential components that make a real estate AI prompt work

The 10 prompts by property type

1 Standard flat in the city

Ready-to-copy prompt:

"Act as an expert real estate agent in the Spanish property market. Write an Idealista description for a flat of [X] m², [N] bedrooms, [N] bathrooms, in [neighbourhood/city], floor [X], [with/without] lift, [open-plan/separate] kitchen, [extra features: terrace, parking, fitted wardrobes]. Condition: [refurbished/new build/needs work]. Target audience: [families/young professionals/investors]. Length: 3 paragraphs. Do not use the terms 'bright', 'cosy' or 'opportunity' without concrete data to support them."

2 Penthouse with terrace

Prompt:

"Write an Idealista description for a penthouse of [X] m² + [Y] m² terrace in [city]. [N] bedrooms, [N] bathrooms, views of [mountains/sea/city/gardens]. The key differentiator is the private terrace. Aspirational tone without exaggeration. 3 paragraphs: the first describes the terrace and views, the second the interior, the third the location and connectivity. Include a closing sentence aimed at prompting action."

3 Property for investors

Prompt:

"Write an investment description for Idealista. Property: flat of [X] m² in [neighbourhood], [N] bedrooms. Currently rented at [€X]/month, gross yield [X]%. Area with high rental demand due to [university/business hub/tourism]. Audience: investor seeking yield. Analytical, data-driven tone. Include: location and demand, property condition, current yield, appreciation potential."

4 House or detached villa

Prompt:

"Write an Idealista description for a detached house of [X] m² built + [Y] m² plot in [municipality]. [N] bedrooms, [N] bathrooms, [garden/pool/garage/storage]. [Distance] from the city centre. Lifestyle: tranquillity, space for a family. 4 paragraphs: exterior and plot, ground floor, upper floor, surroundings and nearby amenities. Mention schools/supermarkets if within [X] km."

5 Commercial premises

Prompt:

"Write an Idealista description for a commercial premises of [X] m² on [street/neighbourhood/city]. Ground floor, [shopfront/no shopfront], [direct access/stairs], [toilets/no toilets]. Foot traffic: [high/medium]. Suitable for: [suggested type of business]. Audience: entrepreneur or business owner. Emphasis on the commercial potential of the location. 3 paragraphs: location and traffic, premises features, possible uses."

6 Property needing renovation (adjusted price)

Prompt:

"Write an honest and attractive Idealista description for a property needing renovation, [X] m² in [area]. [N] bedrooms, [N] bathrooms, solid structure. Priced below market due to renovation needed. Audience: buyer wanting to customise their home or investor for rehabilitation. Tone: transparent about condition, but focused on potential. Do not hide the renovation needed. 3 paragraphs: potential of the space, what is in good condition, the area and price as competitive advantage."

7 Luxury property

Prompt:

"Write a premium Idealista description for a property of [X] m² in [exclusive area]. Materials: [marble/hardwood flooring/designer kitchen/home automation/private pool]. [N] en-suite bedrooms, [N] full bathrooms, [private terrace/garden]. Audience: high-net-worth buyer. Tone: elegant, exclusive, without aggressive sales language. Avoid exclamation marks. 4 paragraphs: architecture and design, main living spaces, luxury extras, privacy and location."

8 Studio or small flat

Prompt:

"Write an Idealista description for a studio of [X] m² in [neighbourhood/city], floor [X]. [Refurbished/new]. Well connected by metro/bus [lines]. Ideal for: professionals, university students, first home. Tone: dynamic and practical. Highlight: space efficiency, location, connectivity. 2 paragraphs: description of the optimised space, and location as the main advantage."

9 With energy certificate

Prompt:

"Write an Idealista description that includes and highlights the property's energy efficiency. Flat of [X] m², energy certificate class [A/B/C], [heat pump/solar panels/double-glazed windows/insulated facade]. Estimated savings on bills: [X]€/year. Audience: environmentally conscious buyer or one wanting to cut costs. 3 paragraphs: the first on efficiency and savings, the second on property features, the third on location."

10 Universal prompt with variables

Master prompt:

"Act as an expert real estate copywriter in the Spanish property market. Write an Idealista description with the following data: TYPE: [flat/house/penthouse/premises/garage] / SQUARE METRES: [X] m² / BEDROOMS: [N] / BATHROOMS: [N] / LOCATION: [neighbourhood, city] / EXTRAS: [comma-separated list] / CONDITION: [new/refurbished/needs work] / ENERGY CERTIFICATE: [letter or unknown] / TARGET AUDIENCE: [families/young professionals/investors/professionals] / PRICE: [€X or 'on request'] / LENGTH: 3 paragraphs of 60–80 words. RULES: no clichés without data, no exclamation marks, end with a closing sentence that invites contact."

Comparison table: simple vs. structured prompts

Prompt type Time Result quality Needs editing Recommended for
"Describe this flat: 3 beds, 90m², Madrid" 5 sec Generic Yes, a lot Nobody
Structured prompt (role + data + format) 30 sec Good Minimal Agents with time
Master prompt (#10) with variables 45 sec Very good Spell check only Agents with volume
SnapHouse (integrated prompt + AI) 8 sec Excellent No High-volume agents
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Prompt effectiveness comparison — basic prompt ("write a property description") vs. specialized prompt with full context — showing dramatic quality difference in output

Basic vs. specialized prompt: the quality gap is too large to ignore

Common mistakes when using AI for Idealista descriptions

  • Not specifying the target audience: a description for families shouldn't sound the same as one for investors.
  • Not giving exact square metres: the AI tends to talk about "spacious areas" when it doesn't know the actual m².
  • Asking too much in one prompt: if you want a description + social media copy + email, create them separately.
  • Not checking the energy certificate: Idealista displays it alongside the listing — if the description says "very efficient" and the certificate is E, it looks bad.
  • Accepting the first result: ask for 3 versions and choose the best, or ask it to "rewrite it more formally" or "make it more conversational".

How SnapHouse automates all of this

The above prompts work well if you have 5–10 properties a month. With higher volume, writing the right prompt for each property is still time you could spend on viewings and new client acquisition.

SnapHouse has the prompts built in. Fill in the property form and it generates in seconds: a 3-paragraph description for Idealista, Instagram copy with emojis and localised hashtags, energy certificate included automatically. Once generated, you can publish on Idealista with AI directly from the app. You don't need to remember or copy anything.

See how SnapHouse generates property descriptions, Reels, PDFs and Instagram posts in under 5 minutes.

Want to generate it without copying prompts?

SnapHouse has all 10 prompts built in. Fill in the property data once and it generates the Idealista description, Instagram copy and PDF in under 1 minute.

See how it works