If you are thinking about building new, adding space, or updating an older home in San Carlos, timing matters. Local rules have changed, housing goals are evolving, and many homeowners are weighing practical upgrades against long-term resale value. The good news is that once you understand the local approval path and the trends shaping new construction and remodeling, you can plan with a lot more confidence. Let’s dive in.
San Carlos building trends right now
San Carlos is seeing two trends at once. On one side, the city is making it easier to move certain residential projects through a more objective review process. On the other, housing growth is increasingly showing up in denser, infill formats like apartments, condominiums, duplexes, and other multi-unit housing types.
That shift is not random. The city’s 2023-2031 Housing Element was created to accommodate more housing and reduce barriers to production, and related zoning updates were intended to allow higher densities, floor area ratios, and building heights. For homeowners, that means the local conversation around housing is broader than just single-family homes.
New rules changed the approval process
A major turning point came when San Carlos adopted Single-Family Objective Design Standards on November 13, 2023, with the rules taking effect on December 13, 2023. These standards apply to primary homes, ADUs, JADUs, and SB-9 urban infill units.
In practical terms, many single-family projects now move through staff-level compliance review instead of the old Residential Design Review Committee process, which was discontinued. That can make the path feel more predictable for property owners who want clearer standards up front.
What needs notification and what does not
Not every project follows the same path. According to the city’s compliance review information packet, all new homes require neighborhood notification, and major additions may trigger it too.
Minor additions, remodels, ADUs, JADUs, and urban infill units do not require neighborhood notification under that packet. The same city guidance notes that planning approvals for new development are generally valid for 12 to 18 months, with an option to extend, and construction timelines are subject to a tiered ordinance tied to project value.
ADUs and SB 9 remain important options
For many San Carlos owners, the biggest opportunity is not a total rebuild. It is finding ways to create more flexibility on an existing lot. That is one reason ADUs and SB 9 projects continue to get attention.
Under California’s SB 9 fact sheet, qualifying two-unit projects and lot splits in single-family zones must be approved ministerially, and in some cases that framework can allow up to four housing units on lot area that traditionally held one single-family home. The state also recognizes ADUs and JADUs as part of a jurisdiction’s housing strategy when analyzing capacity and incentives.
For you as a homeowner, that makes ADUs and similar small-scale infill options worth a closer look if your goals include guest space, rental flexibility, multigenerational living, or a more adaptable property layout.
Where new construction is concentrating
A lot of San Carlos growth is pointing toward infill and corridor development instead of spread-out expansion. During the city’s housing outreach process, participants expressed interest in more apartments, condominiums, duplexes, triplexes, high-density multi-family housing, micro-units, and family-sized units, according to the Housing Element outreach materials.
You can also see that trend in the development pipeline. The city highlighted 11 El Camino Real as a 242-unit, all-electric, six-story project with 36 below-market-rate units, and it identified several additional infill projects under construction or approved along key corridors.
The city’s draft 2045 General Plan Reset notice of preparation projected 7,300 net new housing units between 2024 and 2045, with large shares expected in the Downtown Specific Plan area and the Northeast Area. Because those figures are draft projections, they are best read as a planning signal, but they do suggest where future growth pressure may be focused.
Remodeling is still about livability first
Even with more new housing coming, remodeling remains highly relevant in San Carlos. Many owners are not looking to start over from scratch. They want to improve how their current home functions, looks, and feels.
National data from the 2025 Remodeling Impact Report supports that mindset. The most common remodeling motivation is upgrading worn-out surfaces and materials, while 28% of owners say improved functionality and livability matters most. Durable materials, beauty, and energy efficiency also rank high.
That lines up well with what many Peninsula homeowners want from a remodel: better flow, more usable space, and finishes that feel current without becoming overly custom.
Energy upgrades are becoming more visible
Energy efficiency is also playing a bigger role in both new construction and remodeling decisions. San Carlos requires Planning Division approval before plans are submitted to the Building Division for new homes and residential additions or remodels, and the city’s building checklist asks applicants to include the applicable CALGreen checklist in the plan set.
At the state level, California’s 2025 Energy Code expands heat pump use in newly constructed residential buildings and adds electric-ready requirements when gas or propane appliances are installed. Those electric-ready rules do not apply to additions or alterations, which is important because remodels often become the point where homeowners voluntarily choose to upgrade systems rather than do so because code requires it.
Locally, electrification is not just theoretical. The approved all-electric project at 11 El Camino Real shows that all-electric construction is already showing up in actual San Carlos development.
Which remodels feel most worthwhile
If you are trying to decide where to invest, practical projects tend to have the broadest appeal. The same NAR report found that an added primary bedroom suite, a kitchen upgrade, and new roofing earned top Joy Scores, while a new steel front door had the highest cited cost recovery.
The report also noted that buyers are less willing to compromise on condition than they once were. That helps explain why visible, functional improvements often matter more than highly personalized upgrades.
In San Carlos, the most sensible remodeling bets are usually the ones that solve a real problem, such as:
- Reworking a kitchen for better flow and storage
- Updating bathrooms for daily usability
- Creating a clearer primary suite
- Adding an extra bedroom or flexible office space
- Building an ADU for flexibility
- Completing energy-related upgrades that improve comfort and operating costs
- Replacing worn roofing, surfaces, or entry features that affect first impressions
What this can mean for resale
While San Carlos-specific return-on-investment data for each project type was not identified in the research, the broader direction is still useful. In a high-value market, buyers often respond well to homes that feel move-in ready, practical, and easy to understand.
That is why the safest value plays are usually not the flashiest ones. They are the improvements that add usable space, correct layout issues, improve visible condition, and support modern living without overbuilding for the lot or location.
If you are remodeling with resale in mind, it helps to think in terms of function first. Ask whether the project makes the home easier to live in, easier to market, and easier for a future buyer to appreciate on first walkthrough.
How to plan smart in San Carlos
Before you commit to plans, it is smart to match your goals to the city’s process and to your property’s likely market position. A project that makes sense for long-term personal use may not be the same one you choose if you plan to sell in the near future.
A few practical questions can help guide your decision:
- Are you planning for personal use, rental flexibility, or resale?
- Does the project require planning review, neighborhood notification, or only staff-level compliance review?
- Will the improvement add function, not just square footage?
- Are you choosing durable finishes that fit the home’s overall price point?
- Would an ADU, reconfiguration, or partial addition solve the problem better than a full rebuild?
- Should you include electric-ready or energy-efficient upgrades while walls and systems are already open?
The more clearly you answer those questions up front, the easier it is to avoid expensive over-improvements and timeline surprises.
Why local guidance matters
In a market like San Carlos, every property starts from a different place. Lot size, existing floor plan, zoning context, approval path, and future resale goals can all change what makes the most sense.
That is where experienced local guidance can make a real difference. If you are weighing whether to remodel, build, add an ADU, or prepare a home for sale, working with someone who understands local housing trends, pricing strategy, and property positioning can help you make a more confident decision. If you want help thinking through your next move in San Carlos, connect with Robert Pedro.
FAQs
What are the current approval rules for new homes in San Carlos?
- San Carlos uses Single-Family Objective Design Standards for qualifying residential projects, and new homes require neighborhood notification under the city’s compliance review process.
Do ADUs require neighborhood notification in San Carlos?
- No. According to the city’s compliance review packet, ADUs and JADUs do not require neighborhood notification.
What remodeling projects are trending in San Carlos homes?
- The strongest trends point toward practical upgrades like kitchen improvements, bathroom updates, added suites or bedrooms, roofing, ADUs, and energy-related improvements that support comfort and livability.
Are all-electric homes becoming more common in San Carlos?
- Yes. State energy rules are pushing new construction toward more electrification, and San Carlos has already approved an all-electric multifamily project at 11 El Camino Real.
What adds the most resale appeal in San Carlos remodeling projects?
- Directionally, projects that improve usable space, layout, visible condition, and move-in readiness tend to offer the broadest appeal, although project-specific resale results can vary.
Is SB 9 relevant for San Carlos homeowners?
- Yes. For qualifying properties in single-family zones, California’s SB 9 framework can allow ministerial approval for certain two-unit projects and lot splits, creating more flexibility than many owners expect.
