Journal: after approval

Coordinating Engineers, Design Review and the Commission

Much is written about getting a Del Mar project through design review and the coastal permit. Less is written about what comes after, when the approved drawings, the engineer's details, the City's conditions and the realities of the excavation all have to stay in agreement. That middle stretch is where we spend much of our attention.

A Del Mar structural project rarely has one set of rules. A foundation repair on a hillside lot, a new retaining wall above a canyon, or work near a bluff may carry design review conditions, a coastal development permit, a grading or drainage plan, building plans and engineering details. Each was prepared and reviewed at a different moment, by different people.

Approval is a milestone, not the finish. In our experience, the quality of a project depends heavily on how well those documents stay aligned once work begins. This entry describes how we think about that stretch.

The documents that have to agree

By the time a crew arrives, a typical project may be governed by:

  • The design review approval letter and its conditions.
  • A coastal development permit and its conditions, where one applies.
  • Grading and drainage plans reviewed by the City Engineer.
  • The building permit set, after plan check.
  • The geotechnical report and any updates.
  • The structural engineer’s drawings and details.

Del Mar’s Municipal Code, section 30.75.040, says a coastal development permit is required before development, in addition to other permits, and may be processed concurrently with them. That word “addition” is the heart of it. None of these documents replaces the others.

The handoff from design review to plan check

The City’s Administrative Design Review guide describes the sequence. If the project involves a drainage or grading plan, final approval of those plans is routed through Planning to the City Engineer before building permit plans are released. After building plan check is complete, Planning staff review the plan sets for conformance with the approved design review plans, and verify that remaining conditions of approval have been satisfied.

The guide is direct on one point: it is important to tell Planning staff if changes made during building plan check altered the scope that was approved through design review. Plan check comments often prompt engineering changes, such as a deeper footing, a larger wall or a different drain route. Some of those are invisible to design review. Others are not. We would rather raise the question early than have it discovered at a final inspection.

The guide also notes that Del Mar requires building permits for some work that other places exempt, including all new fences, retaining walls and freestanding masonry walls. We mention this because small site walls are often added late in a project.

Special inspections, and who arranges them

The California Building Code, section 1704.2, requires special inspections for certain structural work. The owner, or the owner’s authorized agent, employs the approved agency that performs them, not the contractor. Those inspections are in addition to the City’s inspections. The inspectors work under the direction of the registered design professional in responsible charge and report to the owner.

Section 1705.6 addresses soils. Where a geotechnical report applies, inspectors check that bearing materials, excavation depth and material, and subgrade preparation match the report, with continuous inspection during placement and compaction of fill.

Section 1704.2.2 adds that work has to remain accessible and exposed until it has been inspected. On a tight Del Mar lot, an open footing excavation waiting for an inspector is a real constraint. Weather, neighbors and access all press on it. We plan around those visits rather than hoping to fit them in.

When the ground disagrees with the drawings

Excavation sometimes reveals conditions that differ from what the geotechnical report anticipated: softer soil, a buried old footing, a seep, or bedrock at a different depth. When that happens, the sequence matters:

  • Stop the affected work and protect the excavation.
  • Notify the geotechnical engineer and structural engineer.
  • Document conditions with photographs and measurements.
  • Wait for a written response before proceeding.
  • Determine whether the change affects the building permit, design review approval or coastal permit.

The City’s Building Services page lists a building permit revision form for changes to issued permits. Del Mar’s Municipal Code, section 30.75.230, provides that amendments to an issued coastal development permit are processed under the same chapter and the local coastal program. The design review guide notes that changes after approval may need further review by staff or the Director, with added fees or public noticing as necessary. We do not predict how any of those reviews will be decided, and we do not start changed work before the right review has happened.

Inspections by Planning as well

The design review guide also notes that approved projects may be subject to construction-phase inspections by staff to confirm compliance with the approved plans. That is one more reason to keep the field set current and to flag deviations as they arise, rather than reconciling everything at the end.

Closing out the paperwork

Coordination does not end when the concrete cures. Final inspections, the special inspector’s final report, any geotechnical observation letters and the engineer’s responses to field changes all belong in the owner’s file. For a Del Mar property that may be sold, insured or remodeled again, a tidy record of what was built, and how it matched the approvals, has lasting value. We assemble that record as we go so it is complete when the last inspection signs off.

How we keep the threads together

Our habits on coordinated projects are simple and consistent:

  • One current field set, with superseded sheets clearly marked.
  • A running log of engineer responses, inspection results and City correspondence.
  • A list of every condition of approval, with who is responsible for each.
  • Regular check-ins with the owner on anything that could change scope or cost.

We coordinate with licensed engineers as needed, and we keep the owner informed so that decisions requiring the owner, such as hiring the special inspection agency, are made in time.

What shapes coordination effort

We do not quote online. The considerations are:

  • How many approvals and conditions apply.
  • Whether coastal, grading and drainage plans are involved.
  • How complex the geotechnical conditions are.
  • How often special inspections are needed.
  • Access and neighbor constraints on the site.

If you own anywhere in Del Mar and are planning or already holding approvals for structural work, request a Free Quote. Related pages cover design review for foundation projects and bluff and seawall stabilization.

Sources (accessed October 28, 2026)

  1. Administrative Design Review Applicant Guide (Rev. 4/2024), City of Del Mar Planning and Community Development
  2. Del Mar Municipal Code Chapter 30.75 Coastal Development Permits, City of Del Mar via GoCodeBook
  3. Building Services, City of Del Mar
  4. 2025 California Building Code, Chapter 17 Special Inspections and Tests, UpCodes
  5. Soils special inspection requirements (CBC 1705.6), UpCodes

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