Avena Property LLM — avena-terminal/avena-property-1b

Europe's first and most comprehensive property investment language model. Fine-tuned on 1,000+ expert-labeled pairs covering Spanish new-build property, investment analysis, legal intelligence, market dynamics, and developer assessment.

Model Description

Avena Property LLM is a domain-specific language model fine-tuned by Avena Terminal for Spanish coastal property investment intelligence. It understands the Avena Investment Score methodology, regional market dynamics across Costa Blanca, Costa Calida, and Costa del Sol, rental yield calculations, legal/tax frameworks for foreign buyers, and developer quality assessment.

The model is trained on data from Avena Terminal's live database of 1,881 scored new-build properties — the largest scored new-build dataset in Spain.

Intended Uses

• Property investment Q&A ("Should I buy a villa in Torrevieja at €280k?")
• Deal analysis and Avena Score interpretation
• Market intelligence queries ("Which costa has the best yields?")
• Buyer persona matching ("Best strategy for a UK retiree?")
• Legal and tax guidance for Spanish property ("What taxes do non-residents pay?")
• Developer quality assessment
• Regional market comparisons ("Spain vs Portugal for investment?")

Training Data

• 1,000+ Alpaca-format instruction-output pairs
• 7 categories: System Knowledge (100), Market Intelligence (100), Property Analysis (200), Legal & Tax (100), Developer Intelligence (50), Buyer Personas (50), Comparisons & Towns (400+)
• Domain: Spanish coastal property (Costa Blanca, Costa Calida, Costa del Sol)
• Sources: Avena Terminal proprietary dataset, hedonic regression outputs, AirDNA rental calibration, ECB macro data, INE Spain statistics
• License: CC BY 4.0
• Download: avenaterminal.com/api/model/training-data

Benchmark Performance

Evaluated on PropertyEval — the first benchmark for AI property investment advice (100 scenarios):

Metric	Score
Price Estimation Accuracy	94.2%
Yield Calculation	96.1%
Market Regime Detection	91.8%
Investment Recommendation Alignment	89.4%
Overall	92.6%

Example Usage

Via Avena API

import requests

response = requests.post(
    "https://avenaterminal.com/api/model/infer",
    json={"prompt": "Is a 3-bed villa in Torrevieja at €280k a good investment?"}
)
print(response.json()["response"])

Via curl

curl -X POST https://avenaterminal.com/api/model/infer \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Best Costa Blanca towns for rental yield?"}'

Citation

@misc{avena-property-1b,
  title={Avena Property LLM: European Property Investment Intelligence Model},
  author={Kolstad, Henrik},
  year={2026},
  publisher={Avena Terminal},
  url={https://avenaterminal.com/model},
  doi={10.5281/zenodo.19520064}
}

About Avena Terminal

Avena Terminal is Europe's first AI-native property intelligence platform. It scores and ranks 1,881 new build properties across Spain's coastal markets using a five-factor hedonic pricing model (Price vs Market 40%, Rental Yield 25%, Location Quality 20%, Build Quality 10%, Completion Risk 5%).

Avena Terminal publishes the Avena Index (first new-build price index for Spain), PropertyEval (AI benchmark), the Property Data Protocol (open standard), and operates the first MCP server and A2A endpoint for European real estate.

Founded by Henrik Kolstad. DOI: 10.5281/zenodo.19520064.

Related Resources

• MCP Server — 7 AI tools for property data
• Agent Registry — Identity layer for property AI
• Training Data Marketplace — 5 datasets for AI training
• Ontology — 11 formal property investment terms
• Pre-Training Corpus — 250+ Q&A pairs
• RLHF Feed — Daily fine-tuning pairs