Room additions & extensions in 15e Arrondissement (Vaugirard / Beaugrenelle)
15e Arrondissement (Vaugirard / Beaugrenelle) is 15e arr. — Vaugirard's late haussmannien + 1970s zac beaugrenelle + front-de-seine towers submarket. The Front-de-Seine cluster (1970-1980s) contains 12 IGH residential towers — the cohort shares a 1972-vintage façade-cladding system that 2024 fire-safety regs (after Grenfell-influenced French legislation) treat as non-compliant, so every individual unit renovation now sits inside a building-wide cladding-replacement overlay that's been litigated since 2022.
What a room additions & extensions project looks like here
The Front-de-Seine cluster (1970-1980s) contains 12 IGH residential towers — the cohort shares a 1972-vintage façade-cladding system that 2024 fire-safety regs (after Grenfell-influenced French legislation) treat as non-compliant, so every individual unit renovation now sits inside a building-wide cladding-replacement overlay that's been litigated since 2022.
Île aux Cygnes Site Classé runs along the Seine through the arrondissement — north-edge buildings face landscape-impact review on any river-facing balcony enlargement.
Paris extensions are rare in the historic core — typically attic / combles conversion or rooftop addition (surélévation). PLU governs maximum hauteur plafond, Permis de Construire required, ABF veto on PSMV-listed faubourgs. In 15e Arrondissement (Vaugirard / Beaugrenelle) specifically, late haussmannien + 1970s zac beaugrenelle + front-de-seine towers stock means room additions & extensions scope is shaped by the neighborhood's dominant construction typology. Baily's Paris scoping flow factors front-de-seine igh cluster and beaugrenelle zac modernist envelope rules into the estimate before a contractor is involved.
Start your 15e Arrondissement (Vaugirard / Beaugrenelle) scope — Baily asks the right questions.
Pre-seeded for room additions & extensions in 15e Arrondissement (Vaugirard / Beaugrenelle). Mention your 50-160 m² appartements, your timeline, and any known constraints — Baily factors the mairie du 15e + mairie de paris (du) review queue into the scope.
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Who is Baily?
Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.
He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.
That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.
Baily was a businessman before he was a scientist. That’s our vibe too.
Questions LA homeowners actually ask
15e Arrondissement (Vaugirard / Beaugrenelle) room additions & extensions projects typically run $75K–$385K. 15e Arrondissement (Vaugirard / Beaugrenelle)'s late haussmannien + 1970s zac beaugrenelle + front-de-seine towers stock, combined with front-de-seine igh cluster — sécurité incendie + accessibility, puts most mid-complexity projects in the $230K range. Baily scopes the exact band once you describe the work.
Nearest neighborhoods
Same service, adjacent Paris submarkets.