Okay, let me tackle this request step by step. The user wants a concise French summary of parcel data under specific constraints. First, I need to understand what they're asking for. They provided detailed parcel information including addresses, building details, land registry info, development restrictions, dangers, etc.
The key requirements are: max 250 words, in French, written like a real estate professional would - so natural, conversational but precise. Must avoid all markdown and meta-commentary. No headings, bullet points, or any formatting. Just one smooth paragraph (maybe two if absolutely necessary). And crucially, it shouldn't sound AI-generated.
Hmm... looking at the data, there's quite a lot to condense. Main elements seem to be: location (Grandvaux, Route de la Petite Corniche numbers 2 & 4), two buildings with similar construction years but different types (two-family vs single-family), agricultural zoning with viticulture restriction, energy features like solar hot water systems, and some regulatory constraints. The price data shows high valuation too.
I notice the user specifically said "write all the prose in fr" - meaning the entire response must be in French. That's important because sometimes people mix languages accidentally. Also need to watch out for those forbidden formatting tricks like asterisks or underscores. Real estate pros wouldn't use those anyway though.
checks word count mentally Better focus on most salient facts: location, property type, condition, zoning rules. Should probably skip less relevant bits like exact polygon coordinates or minor document URLs. The dangerous parts here are getting stuck on technical specs when a human agent would care more about market value and usability.
Ah! Must remember not to say "according to data..." - that's classic AI speech pattern. Need pure statements like "on trouve que..." or just straight factual descriptions. Like how a veteran broker would explain over coffee after seeing the actual site.
counts imaginary words If I mention: address, two houses, 1925 construction, solar hot water, agricultural zoning, price range, maybe note the energy efficiency score... that should cover essentials without hitting 250 words. Omit the building permit section since it's empty per data. Keep the altitude/potential development ratios vague since retail clients won't care.
Wait - should clarify these are separate structures sharing same street number? Data shows egids 789783 and 3040247 both on same road but different house numbers. That matters for practical interpretation. Also the cadastral reference CH558636785777 is useful for professionals who'll want that ID.
imagines writing flow: Start with location → describe properties → highlight energy features → note zoning constraints → end with valuation context. Skip everything about SwissTopo altimetry except possibly saying "terrain légèrement pentu". Avoid percentages from scores since real agents don't recite those.
Most importantly - sounds human. So maybe: "Vous trouverez ici une propriété intéressante..." rather than dry listing. But wait, user said no preamble! Right, full sentences must jump directly into description. Okay then, beginning mid-sentence might work better: "Située à Grandvaux..."
checks prohibited phrases again Definitely can't do "the data indicates" or similar. Pure description only. Words like "construit en 1925" instead of "data shows constructed year = 1925".
Okay final structure:
Location + physical layout (2+4)
Building characteristics (ages, uses, heating)
Regulatory status (zoning, limits)
Key amenities (solar water)
Valuation context
One sentence about potential
Word count looks okay now. Time to craft carefully avoiding every forbidden thing while keeping it warm and authoritative like a seasoned agent's pitch.
</think>
Situe à Grandvaux, route de la Petite Corniche numéro 2 et 4 (1091), cette parcelle cadastrale (EGID CH558636785777) de 1591 m² porte la désignation « parcelle privée » et est divisée en deux propriétés distinctes. Sur place, on trouve deux habitations existantes : une maison de deux logements construite en 1925 (116 m², 3 étages, chauffage électrique) et une maison individuelle identique par son âge (127 m², 2 étages, pompe à chaleur). Toutes deux disposent d’un système solaire thermique pour l’eau chaude. Le terrain se situe dans une zone viticole réservée à destination agricole, soumise à des limites de construction précises (hauteur maximale 12 mètres, plancher maximal 2 niveaux). L’altitude varie jusqu’à 489,9 m avec une pente moyenne modérée. En matière d’exigences, le risque naturel est classé « faible », mais le dossier comporte divers documents de protection spécifique. La valeur marchande avoisine les 3,26 Mio CHF, reflétant sa situation dans une région bien recherchée. Il convient de noter la possibilité de développer ce terrain conformément aux règles en vigueur, avec un potentiel de création de deux lots (un T2 et un T3), offrant une efficacité optimale dans la composition immobilière. Les installations techniques actuelles, notamment l’énergie renouvelable, rendent ce bien particulièrement attractif sur le marché local.