Map parcels before lease math
Map every tax parcel before testing a CAM share.
First, link each parcel to the site. Then test the lease share as a separate fact.
Cook County shows local parcel facts. IAAO says its standards are guides. The table keeps those facts apart from the signed lease share.
Keep three facts apart
Do not blend assessment, site, and lease data.
| Fact group | Core source | Final owner |
|---|---|---|
| Assessment | Assessor and tax records | Tax consultant |
| Site link | Map, plan, and lease exhibit | Reviewing firm |
| Lease share | Signed lease and changes | CAM reviewer |
Cook County explains its valuation methods. That page only covers Cook County context.
It does not set a lease share rule. It also does not map your client's space.
IAAO calls its standards advisory. Law or USPAP may control instead.
Use those sources for assessment discipline. Use signed files for lease review.
The passthrough guide sets that work boundary.
List every parcel
Start with the full tax pool.
Record these fields:
- Parcel ID
- Situs address
- Legal description
- Land value
- Improvement value
- Tax bill
- Assessor map
- Special assessment
- Exemption record
- Tax year
Do not assign a parcel to the client yet. First prove the site link.
Link parcels to the site
Add physical proof beside each parcel.
Use these records:
- Site plan
- Premises exhibit
- Suite and address
- Building area
- Project area
- Parking plan
- Outparcel plan
- Shared road plan
Give each parcel one state:
| State | Meaning |
|---|---|
| Direct | The record ties it to the space |
| Shared | The site uses it with others |
| Excluded | The record keeps it outside |
| Unresolved | The link lacks enough proof |
An unclear parcel stops the share test. Name the missing map or exhibit.
Park that file with the season plan. Keep it outside final math.
Add a Use mix field for mixed-use parcels. Name each known use and source.
Do not create a share from that label. Mark the field unclear when proof conflicts.
Ask for a site plan or lease exhibit. Keep the share test parked.
Keep personal property separate
This state tax page explains leased equipment. It covers one state's tax work.
Do not mix equipment records into real parcel mapping. Mark the subject and source clearly.
Other states may use different rules. Check the right official source.
Add the lease columns
Only add lease math after the site map is ready.
Record these fields:
- Tax clause page
- Allocation clause page
- Named tax pool
- Share method
- Denominator value
- Denominator source
- Statement line
- Signed change state
- Reviewer
Keep the assessment percentage in its own column. Keep the lease percentage in another.
Matching numbers do not prove matching methods. Each number needs its own source.
The refund guide also starts with a proved parcel.
Test a fictional site
This example is fictional. It does not show a client result.
Parcel A holds an 80,000 square foot building. Parcel B holds shared parking.
The client space covers 10,000 building feet. The lease lists a 12 percent share.
The physical building ratio is 12.5 percent. That uses 10,000 divided by 80,000.
The lease ratio is 12 percent. It comes from the signed lease page.
| Parcel | Physical state | Tax pool state | Lease share |
|---|---|---|---|
| A | Direct | Included | 12 percent |
| B | Shared | Needs proof | Not set |
Do not declare 12.5 percent legally correct. Do not replace the signed 12 percent either.
The reviewer must resolve Parcel B. The statement math waits for that proof.
Now add a signed site plan. It ties Parcel B to shared parking.
Its physical state stays Shared. The lease still controls the share test.
Route each hard question
Keep each work lane clear.
The tax consultant owns value and appeal conclusions. The CAM reviewer owns the CAM bill finding.
Counsel reviews disputed lease meaning. No table should replace that legal work.
The property tax growth pillar joins the full service line.
Find more parcel and tax guides in the cost consultant hub. Compare firm types in Practice Growth.
Where CAMAudit fits
Return after Parcel B gains clear site proof.
The property tax consultant sends the parcel record. The CAM reviewer adds the lease and statement.
CAMAudit tests the signed share against the CAM bill. It may flag a sourced difference.
Your firm reviews and signs the branded CAM audit. It owns the final client judgment.
A checked parcel variance may support a dispute letter draft. Your firm reviews it.
It is not legal advice. Have counsel review before sending.
Use the service line guide. It helps set this review lane.