Ready-Made Addition & Remodel Plans

What a ready-made addition or remodel plan is

A ready-made addition or remodel plan set is a pre-drawn design for a common type of home change — say a bedroom-and-bath addition, a kitchen reconfiguration, or a second-storey extension — offered as a finished package for a set price. It gives you a resolved design to start from instead of commissioning one from scratch.

Additions and remodels carry a wrinkle that new, standalone buildings do not: they have to meet an existing house. That makes the fit between a stock plan and your home more involved than with a detached unit, and it is the single biggest thing to understand before buying.

The honest catch with additions

Because an addition connects to what is already there, a pre-designed plan almost always needs adjustment to meet your specific structure, rooflines, floor levels, and foundations. A ready-made addition plan is best thought of as a strong design starting point and a way to picture the result and its scope — not a drop-in solution. How much tailoring is required depends on your house and your jurisdiction.

If your home or your goals are unusual, a custom design may be the better route. Our guides on stock plans versus custom design and remodel or rebuild help you weigh it.

When a ready-made addition plan fits

• Your change is a common, well-understood type (a standard room addition or a typical remodel layout).
• Your existing house is relatively conventional in structure and levels.
• You want a resolved design to price and plan around, and are comfortable tailoring it to the existing building.

Permits for additions and remodels

Most additions and many remodels require permits, and the review depends entirely on your city or county and the scope of work. Starting from a drawn design can help, but it does not change the fact that each jurisdiction sets its own process and timelines. The journal entry on when a remodel needs a permit covers the basics, and our hedged overview of permit timing explains why we avoid fixed numbers. Confirm current requirements with your local building department.

Additions across our service areas

We work with homeowners across Los Angeles, Orange, and San Bernardino counties, plus Bakersfield, Simi Valley, Porter Ranch and the San Fernando Valley, and Sun Valley. Setback, height, and lot-coverage rules that affect additions are set locally and differ from one jurisdiction to the next — so the same addition plan can land differently in the City of Los Angeles, an Orange County city, or a Kern County address. See the service-areas overview, and always confirm the rules for your exact property.