Pad Certification Survey

A pad certification survey measures the graded building pad against the approved grading plan and certifies the elevation on the building department's own form, so vertical construction can be released. We perform rough grade, pad, and final grade certifications across Northern California under PLS 9686, tied to the project benchmark and control.

What a Pad Certification Is

A pad certification is a licensed surveyor's statement that the graded building pad was measured and sits at the elevation shown on the approved grading plan, within the tolerance the jurisdiction applies. Most building departments require it before they will release vertical construction, and many publish their own form for the surveyor to complete, sign, and stamp.

It is a small deliverable sitting on a schedule-critical seam. The grading contractor is finishing, the framing crew is waiting, and the inspector will not move until the certification is in hand. So the useful version of this service is not just the stamp. It is measuring densely enough to know the pad surface, comparing it to the plan the same day, and telling the builder what is out of tolerance while the equipment is still on site.

Surveyor field work in Northern California
Grade Certification

Grade Certification

The graded pad measured against the approved plan.

Spot elevations on the project benchmark, compared to design, stamped on the jurisdiction’s own form.

Pad elevationPlan comparisonStamped form

When the City or Engineer Requires One

The trigger is almost always a condition of approval or a building department checklist rather than the owner's idea. In practice a pad certification is required after rough grading and before vertical construction is released, which is why it lands between the grading contractor leaving and the framing crew arriving. On subdivision and larger commercial work the conditions frequently call for a rough grade certification earlier and a final grade certification at the end as well, each a separate submittal.

Civil engineers of record also ask for it independently, because the grading plan they stamped is the document being certified against, and a pad built two tenths high changes drainage, finish floor, and in some jurisdictions the permitted height envelope. Geotechnical engineers on fill sites want the same numbers for their own compaction and settlement records.

Which certifications apply to your job depends on the jurisdiction and the conditions of approval, so send the approved plan and the form with the request. We read both before quoting rather than after.

What We Certify

Measured against the approved plan, on the project benchmark, not an assumed datum.

Rough grade certification

After mass grading and before fine grading, confirming the site was cut and filled to the approved grading plan. Usually a condition of approval on subdivision and larger commercial work, and the one most often forgotten until an inspector asks.

Building pad certification

The pad elevation itself, measured against the design elevation on the approved plan, before vertical construction is released. This is the certification most jurisdictions mean when they say "pad cert."

Final grade certification

At the end of the job, confirming the finished site grades and the finish floor elevation match the approved plan and the site drains as designed. Frequently tied to the certificate of occupancy.

Spot elevations and exhibit

The observed elevations across the pad, the building corners, and the surrounding grade, posted on an exhibit against the design elevations so a plan checker can see the numbers rather than take a letter on faith.

Every elevation is observed from the project benchmark and control, in US survey feet unless the plan says otherwise, with the basis stated on the exhibit. That matters more than it sounds: a pad certified against an assumed local datum cannot be reconciled with the civil plan, the finish floor, or the flood elevation, and a plan checker who notices will send it back. Where the benchmark shown on the plan is destroyed or cannot be recovered, we re-establish control from published control and say so in the certification.

Deliverables and Turnaround

You receive the jurisdiction's certification form completed and stamped by a California Professional Land Surveyor, plus an exhibit showing the observed spot elevations, the design elevations they are compared against, the differences, the benchmark and control basis, and the date of observation. Where the job needs it, the same visit produces a DWG of the observed surface.

Turnaround is part of the deliverable on this service, because the schedule is the whole point. Field observation on a single pad is a short visit, and we confirm the turnaround in writing when the job is scoped rather than after mobilizing. If the pad is out of tolerance you hear it the same day, before anything is stamped, because a surveyor cannot certify a pad to a plan it does not match and nobody benefits from finding that out at the inspection.

Often ordered with this: a setback certification and foundation location survey at the form and foundation stage, and construction staking to put the design on the ground in the first place. See all construction certification surveys.

Surveyor performing field observation of the kind used for a pad certification survey
Field observation on the project benchmark. The certification is only as good as the control behind it.

Our Process

Plan and benchmark first, then the field, then the comparison, then the stamp.

1

Plan & Benchmark Review

Send the approved grading plan and the city or county form. We confirm the design pad elevations, the benchmark and datum the plan was drawn on, and the tolerance the jurisdiction applies.

2

Field Observation

We recover the project benchmark and control, then observe spot elevations across the pad, at the building corners, and on the surrounding grade, with enough density to show the pad surface rather than four corners and a guess.

3

Comparison to Plan

Observed elevations are compared against the approved plan and the differences are computed. If the pad is out of tolerance you hear it the same day, before the certification is issued, so the grading contractor can fix it rather than argue about it.

4

Stamped Certification

You receive the jurisdiction’s form completed and stamped by a California Professional Land Surveyor, plus an exhibit showing the observed elevations, the design elevations, the differences, and the control basis.

Service Area

We certify pads across Northern California, roughly within three hours of Sacramento: the Sacramento region, Placer and El Dorado counties and the Sierra foothills, the northern Central Valley through Stockton and Modesto, and the San Francisco Bay Area. On tract and phased work we set the control once and certify pads as they come ready, which keeps every lot on the same benchmark.

Pad Certification FAQ

Common questions from builders, developers, and civil engineers.

A pad certification is a licensed surveyor’s statement that the graded building pad was measured and is at the elevation shown on the approved grading plan, within the jurisdiction’s tolerance. Most building departments require it before they will release vertical construction, and many supply their own form for the surveyor to complete and stamp. It normally includes an exhibit of the observed spot elevations so a plan checker can see the underlying numbers.
After rough grading and before vertical construction is released, which in practice means it sits directly between the grading contractor finishing and the framing crew starting. Some jurisdictions and projects also require a rough grade certification earlier and a final grade certification at the end, for drainage and for the certificate of occupancy. We can cover all three from the same control.
Rough grade certification confirms the site was graded to the approved plan before fine grading. Pad certification confirms the building pad elevation itself before vertical construction. Final grade certification, at the end of the job, confirms the finished site drains as designed and the finish floor and site elevations match the plan. They are separate submittals, and which ones apply depends on the jurisdiction and the conditions of approval.
We tell you before anything is stamped. A surveyor cannot certify a pad to a plan it does not match, so the useful move is to find out while the grading equipment is still on site. We deliver the observed-versus-design comparison, the contractor corrects the areas that are out, and we re-observe the affected portion.
This work is scheduled around inspections, so speed is part of the deliverable. Field observation on a single pad is normally a short visit, and we confirm the turnaround in writing when we scope it, before mobilizing. Send the approved plan and the jurisdiction’s form early and the certification does not become the thing holding up the build.
Yes. On multi-lot work we set the control once and certify pads as they come ready, which keeps every lot on the same benchmark and avoids re-establishing control on each visit. Builders on phased projects generally want a standing arrangement rather than a new scope each time.

Send Us the Approved Grading Plan

Send the approved plan and the jurisdiction's form and we will confirm scope, turnaround, and the benchmark before mobilizing. (510) 543-2220 · info@contour-survey.com

Meeting-first estimates • Response within 24 hours • Serious projects only