Luxury additions & ADUs

What the parcel allows

Setbacks, lot coverage, height limits and separation between structures set your envelope before anyone draws a line. For a second dwelling the rules differ by jurisdiction, and a 2025 state law, AB 396, requires Clark County and the cities of Las Vegas, Henderson and North Las Vegas to allow one on single-family lots from July 1, 2026. Where there is an HOA, its design review sets limits of its own.

NXG confirms what applies to your address with the authority that governs it, rather than working from what was true on a previous job or in another city.

Whether the house can carry it

A Las Vegas addition draws on systems sized for the original house. Electrical service, panel capacity, HVAC tonnage and duct static, water supply, drainage, sometimes the sewer connection. A casita with its own kitchen and laundry is a real load.

Where capacity falls short, upgrading is routine. You want to know while it is a line in an estimate rather than a change order in month four.

Tying into what stands

The work is in the tie-in: new framing fastened into existing, roof planes joined without a flat spot or dead valley that holds water, and foundations of different ages set side by side without telegraphing the join.

Done properly none of it shows. Done casually it shows as a line in the roof, a step in the parapet, or a crack that comes back every year in the same place.

The finish gives additions away

Plaster texture and color, roof tile weathered by twenty Las Vegas summers, window proportion, base and casing matching a profile milled long ago. None of it is structural, and a visitor notices all of it.