Residential Architect in San Carlos | Remodels, Additions, and Custom Homes
San Carlos adopted Single-Family Objective Design Standards in December 2023 with a clear goal: faster, more predictable approvals for projects that comply with the standards. Projects that comply can be approved administratively without a public hearing. Projects that do not go to the Residential Design Review Committee. Plan review in San Carlos runs 30 to 180 days depending on project type, which is one of the wider ranges among Peninsula cities. Completeness at first submittal is what keeps it at the lower end.
Regulations change and every property is different. This page reflects general conditions in San Carlos, not a substitute for a property-specific feasibility review.
San Carlos Homeowners We Work With
San Carlos homeowners tend to be clear about why they are staying: the school district, the Caltrain access, the neighborhood feel, and what it would cost to buy comparable space elsewhere all point to the same conclusion. Many own postwar homes that are well-located but undersized. Some are dealing with foundation and structural questions that come with older homes when a second floor is being added: many of the postwar homes here were built with conventional wood framing that needs to be evaluated before a second story is designed.
Common Project Types
Home Remodels and Renovations
San Carlos residential neighborhoods are defined primarily by postwar single-story homes from the 1950s and 1960s on standard lots. Interior remodels and modifications that do not significantly change the exterior can be processed through building permits with a direct path. The Objective Design Standards adopted in 2023 provide clarity on what exterior modifications can be approved administratively.
Home Additions & Second Story Expansions
Second-story additions that comply with the Single-Family Objective Design Standards can be approved administratively without a public hearing. This is the faster path and the one worth designing toward. Projects that do not comply go to the Residential Design Review Committee. Structural assessment of the existing home is part of feasibility for second-story additions: older postwar framing often needs reinforcement before vertical construction begins.
San Carlos has a Wildland Urban Interface zone south of San Carlos Avenue and west of Alameda de las Pulgas. Properties in this zone face fire-resistant construction requirements that affect material selection from the early design stages.
Custom Homes and Rebuilds
New two-story homes go through Architectural Review. ODS-compliant projects can be approved administratively. Non-compliant projects require RDRC review. Application status notification within 30 days of submittal.
The Approval Process in San Carlos
ODS compliance is the fork in the road: compliant projects go through administrative approval without a public hearing, non-compliant projects go to the RDRC. Designing to the ODS from the first schematic is the fastest path through the process. Plan review runs 30 to 180 days. Within 30 days of submitting an application, the applicant is notified of the status. WUI zone requirements apply south of San Carlos Avenue and west of Alameda de las Pulgas.
Total timeline from design start to permit: typically 7 to 12 months on the ODS track, longer through RDRC.
Working on a Project in San Carlos?
The ODS compliance question and the structural assessment for second-story additions both need to be established before design begins.
Areas We Work In
We work throughout the South Bay and Peninsula, including the following cities. Each city links to a relevant project pathway and design and permitting context for that area.
San Carlos · Redwood City · Belmont · San Mateo · Menlo Park · Burlingame · Palo Alto · Woodside · San Jose