What does a post-fire structural assessment cover?

The scope may include accessible foundations, slabs, retaining walls, wood framing, steel, masonry, reinforcement, anchors, hold-downs, and the remaining gravity and lateral load paths. The report also identifies concealed or unsafe areas that were not verified.

Can CMZStudio decide whether my foundation can be reused from photos?

No. Photos can support initial scoping, but a reuse conclusion normally depends on site conditions, records, accessible observations, proposed rebuild loads, and targeted exposure or testing when needed. The permit jurisdiction reviews the final report and design.

Do you perform concrete cores or laboratory testing?

We define and coordinate testing when it is needed for the structural evaluation. Sampling and laboratory work are performed by qualified testing providers under the project scope, and we interpret the results for the structural design.

Do you handle smoke cleanup, debris removal, construction, or insurance adjusting?

No. CMZStudio provides structural engineering. Emergency stabilization, hazardous-material work, smoke or soot remediation, water mitigation, debris removal, construction, and insurance adjusting require the appropriate separate professionals.

Is the Los Angeles County foundation checklist used for every Los Angeles address?

No. It applies to the County Building and Safety process. City of Los Angeles properties follow LADBS and applicable City recovery guidance, while other incorporated cities have their own departments. We confirm the jurisdiction from the property address.

Los Angeles post-fire structural engineering

Fire Damage Structural Assessment & Rebuild Design in Los Angeles

Determine what can remain, what must be repaired, and what the structural permit set needs to prove. CMZStudio evaluates accessible fire-damaged structural systems, defines targeted investigation or testing, and prepares repair, selective-rebuild, or full-rebuild structural documents when the evidence supports a design path.

Request a structural review Read the foundation reuse guide

Representative view of a fire-damaged residential concrete foundation prepared for structural assessment

Typical engineering timeline: Assessment 2–4 weeks; design 6–12 weeks
Permit required?: For repair or rebuild, not assessment alone
What you receive: Assessment report or repair/rebuild design set
Cost basis: Free review; fixed proposal after access and scope

Timelines and fee basis are CMZStudio planning estimates based on industry experience. They are not City processing times, official fee schedules, or a project-specific proposal.

What the assessment needs to answer

A defensible path connects observed conditions to targeted evidence, the proposed building, and documents the reviewing agency can evaluate.

What remains structurally usable?

Map the accessible damage, verify the structural system, and identify which elements may justify further evaluation for retention.

What does testing need to resolve?

Use exposure or testing only where it answers a material, geometry, reinforcement, anchor, or soil question that affects the design path.

What can the permit set prove?

Connect the findings to current loads, code checks, repair details, and a coordinated foundation, framing, and lateral system.

Structural systems we evaluate

The scope follows the building’s load paths and the areas that can be safely accessed. Concealed or contaminated conditions remain stated limitations until the proper investigation is completed.

Fire-exposed concrete stem wall with spalling, discoloration, and exposed reinforcement

Foundation and concrete

Cracking, spalling, delamination, discoloration, reinforcing steel, footing geometry, slabs, grade beams, piers, retaining walls, and proposed reuse.

Charred wood roof framing and top plates after a Los Angeles wildfire

Wood, steel, and masonry

Section loss, charring, distortion, connection damage, masonry units and mortar, posts, beams, walls, diaphragms, and remaining support conditions.

Heat-discolored hold-down and anchor bolt at a burned wall base

Anchors and load paths

Anchor bolts, hold-downs, embedded plates, collectors, shear walls, gravity supports, and the continuity required by the rebuilt structure.

Engineer documenting safe access limits at a fire-damaged hillside residential site

Site access and investigation limits

We document what can be safely inspected and what remains concealed or outside structural scope, including debris, standing water, utilities, slopes, soils, and areas requiring another licensed specialist.

Repair, selective rebuild, or full rebuild

The path follows the damage pattern, verified material and geometry, proposed loads, constructability, and the evidence required for plan review.

Technical cutaway of localized replacement framing beside retained structure

Repair

Localized damage can be defined, remaining capacity can be established, and engineered repairs can restore a complete load path.

Selective Rebuild

Sound portions remain while damaged framing, concrete, masonry, anchors, or slab areas are removed and replaced in a coordinated design.

Technical cutaway of an all-new structural system on a new foundation

Full Rebuild

Widespread damage, incompatible geometry, uncertain materials, or the proposed building makes a new structural system the clearer permit path.

What the engineering scope delivers

The exact deliverable depends on access, records, the selected path, and the jurisdiction. The written proposal identifies what is included before work begins.

Damage map and engineering findings

We document accessible structural conditions, observed damage, investigation limits, and the questions that still require records, exposure, testing, or another consultant.

Testing and investigation scope

When visual evidence is insufficient, we define targeted concrete, masonry, reinforcement, anchor, geometry, or soil investigation and interpret the results for design.

Repair or rebuild structural design

We prepare structural calculations, plans, sections, connection details, and repair or replacement details matched to the selected path.

Structural plan-check support

We respond to structural review comments and coordinate revisions within the agreed engineering scope.

Los Angeles permit paths are not interchangeable

The property address determines the reviewing agency. A County checklist can inform the investigation, but it is not a universal City of Los Angeles rule. Current code, local amendments, application timing, recovery orders, and site clearances control the final submittal.

Unincorporated Los Angeles County

County recovery guidance lists foundation and framing plans, structural calculations, construction details, and a foundation reuse checklist when reuse is proposed.

City of Los Angeles

LADBS and the City’s EO 1 implementation guidance provide a separate expedited review and streamlined approval framework for eligible wildfire projects.

Other Los Angeles County cities

Each incorporated city may use its own building department, local amendments, submittal forms, and recovery procedures. Confirm the jurisdiction before design begins.

Review structural calculations and permit drawings

From access check to permit documents

1
Establish access and scope
Confirm the address, jurisdiction, agency tags, debris-removal status, site access, available records, and intended rebuild scope.
2
Document the structure
Map accessible damage and identify the foundation, framing, lateral system, retaining elements, and connections that control the decision.
3
Resolve unknowns
Coordinate selected exposure, testing, surveying, geotechnical input, or laboratory work where it can change the engineering conclusion.
4
Design the permit path
Complete the structural calculations and drawings for the supported repair, selective-rebuild, or full-rebuild scope.

Concrete core sample and rebound hammer used to investigate a fire-exposed foundation — Testing is targeted to questions that can change the engineering decision.

Lei Zheng

Founder & Principal Engineer, CMZStudio

California Professional Engineer

California-licensed engineering

Licensed engineering from first calculation through plan check.

Lei Zheng has held a California Civil Engineer license since 2006. At CMZStudio, he reviews structural decisions, prepares and stamps engineering documents, and supports responses through city plan check.

Official California DCA record

C-69809

CLEAR

License holder: Lei Zheng
License type: Civil Engineer
Issued: March 17, 2006

Verify license

Status verified July 23, 2026

California-licensed: 20 years
Official DCA record: C-69809

Start with the foundation reuse question

The guide explains what heat can affect, when testing helps, and what the County and City jurisdiction distinction changes.

Representative view of a fire-damaged concrete foundation with cracking, exposed reinforcement, and anchor hardware

Can a Fire-Damaged Foundation Be Reused in Los Angeles?

Foundation reuse is possible in some fire rebuilds, but the decision requires documented conditions, targeted testing, structural analysis, and approval by the permit jurisdiction.

Questions before you schedule

Do not enter an unsafe, tagged, contaminated, or uncleared site for photos. Share the current access status during the initial review.

Verify the requirements

These California sources support the licensing, code, and compliance information on this page.

Request a free structural review

Prefer to talk? +1 510-277-7700 · Mon–Fri · 9:00–18:00