Contractors who hand you the permit paperwork and disappear until something gets denied.
SDCR FIXWe handle every permit, every inspection, every City Hall conversation. You don’t deal with it.
No architectural integration, rooflines don’t match, siding doesn’t blend, scale is wrong.
SDCR FIXDesign phase with architectural integration up front. The addition reads like it was always there.
Home additions may be required for various reasons. It may be as a result of a need for more living space, to change the style of a building, or as a cost-saving strategy. The scope of a home addition project may also vary from case to case. It can be anything from a simple bump-out to a full-size room addition. These factors and other considerations determine how much your home and room additions will cost and how the project will be executed.
Should I Add To My House?
Whether you are simply bumping out a room or repurposing your garage, home addition is almost always an investment. However, this is not always the case. A need for space is the most common reason for a home addition. If your home is a permanent residence or you do not plan to move away for many years. Then, adding a new room to the building might be a great idea. However, if you will be selling the house soon, a room addition may impact the resale value of the building, especially if not well-thought-out. A quality and well-executed home addition may increase the value of a house in case of a future sale. And if in any case you decided to add room in you backhouse, you can read the tips for creating the perfect back house room addition.
Conventional House Addition
A conventional house addition is a full-blown home addition that involves the addition of a multi-room structure built into the side of a building and permanently open to the rest of the house. A well-executed house addition should blend into the house perfectly and may even be used to improve the style of the structure. You may request a conventional house addition to add a dining room, bedroom, guest room, or bathroom to your building. It’s always the best decision to hire a professional room addition contractor for this kind of job.
Room Addition or Bump Out
As the name implies, a room bump out involves expanding the size of an existing room or adding a single room structure to the side of your building. A room bump-out is a less comprehensive project and will also cost less since it is a sort of scaled-down house addition. It is typically carried out to create more space especially to a cramped interior space or to allow the addition of a new home fixture. For instance, you may bump out your kitchen to allow you to squeeze in a kitchen island.
Garage Conversion
A garage conversion is a common home addition project. If you have a garage attached to your home, the idea of converting it into a living space has probably crossed your mind already. For a garage conversion, the basic structure of a room (walls, foundation, flooring, and roof) are already present. You may have some extra elements like electricity and windows in place already as well. A drywall conversion may involve replacing the regular garage door for a wall, changing the flooring, installing a ceiling, and add in plumbing and HVAC systems. However, a garage conversion must be well-thought-out since homes with no garages are typically more difficult to sell.
When the addition reads like part of the original home, you know the design phase was done right.
Straight answers from the SDCR team.
Room additions typically run $300-$500 per square foot in San Diego, so a 300sqft addition is $90-150k. ADUs run $120-$250k. Second-story additions are the most expensive at $400-$600/sqft.
Yes, always. We pull every permit (building, electrical, plumbing, structural) and handle all inspections. Permitting alone can take 6-12 weeks in San Diego.
Total project time including permits: 4-9 months for typical additions. Construction itself runs 3-5 months.
Yes, that's where our design phase comes in. We integrate rooflines, siding, foundation, and interior finishes so the addition reads as part of the original home.
Yes. Garage conversions to ADUs, bedrooms, or home offices are one of our most common projects. Typical cost: $40-80k including permits.
How a Real Addition Gets Built
Room additions take longer than they look because half the work happens before a hammer swings. Here's the actual timeline:
A typical 300-500 sq ft addition runs 5 to 7 months from contract signature. A 1,000+ sq ft second-story addition runs 7 to 10 months. We'll give you a written milestone schedule before you sign.
Pick the Right Type
Four options most San Diego homeowners are choosing between. We help you pick based on lot size, budget, what you actually need, and resale value:
Permits & Code, San Diego Reality
San Diego permit timelines and rules have changed multiple times since 2020. Here's what's actually true in 2026:
Real Cost Drivers
Square-foot pricing is misleading for additions. Here are the actual cost drivers:
Common Questions
Real San Diego Homes
Bump-outs, garage conversions, second-story additions, ADUs. Permits handled in-house. Recent expansions across San Diego County.
We answer fast. Call, text, or send a quick form. Permits handled in-house, real timelines, no surprises.
Licensed (CA #1004363) · Bonded · Insured · Family-owned, serving San Diego since 2014
