Find the dated DOB classification notice and any written exemption decision first. Match the property and fiscal year on each before deciding which question remains unanswered.
Read the classification record before the label
The District's Vacant Building FAQs describe a report that can prompt inspection, a classification notice and a sticker. The report alone is not DOB's finding. Copy the notice date, address and reference from the actual paper.
Changed-condition proof may prompt DOB reinspection. A lost sticker or current inventory or registration entry does not erase a dated classification notice. Seek the later written DOB outcome, not a photograph or receipt.
To check whether a property is already on DOB's list, use the Vacant Properties tab on DOB's Public Dashboard. If it is not there, DOB takes reports through its online Report Vacant/Blighted Property form, not through 311.
Keep five objects separate:
- Report: source and date.
- Classification notice: DOB date and property.
- Reinspection outcome: the later written result, if any.
- Exemption decision: category and fiscal year.
- OTR display: its own date and status.
The list does not imply every file contains each object. A packet gap is not proof that DOB never created a record.
Match an exemption to its fiscal year and category
DOB's exemption service page asks for category-specific proof, including recent permit evidence for active construction. Debt confirmation, signature and supporting documents are separate requirements. An application is not approval: the written approval applies to its stated fiscal year, while a denial carries appeal instructions. This guide does not determine eligibility.
The official pages differ on blighted buildings. The FAQ says no exemption without repair proof; the service page describes eligibility from fiscal year 2026 onward, after October 1, 2025. Ask DOB which category and year apply, and seek its written decision. Neither summary settles an individual claim or establishes that the other page was revoked.
If a folder substitutes a preservation raze-clearance letter for an issued DOB permit, the DC raze-clearance guide separates them. Neither is a vacancy-exemption decision.
Why the dated class matters: rates, fees and appeals
The classification is worth tracing because it sets the tax rate. OTR's real property tax rates page lists Class 3 (vacant) at $5.00 per $100 of assessed value and Class 4 (blighted) at $10.00, and DOB, not OTR, decides the class. A blighted finding therefore doubles the vacant rate for the same building.
- Registration: buildings unoccupied for 90 days or more must register with DOB. The FAQs list a $350 initial fee and a $500 annual renewal, effective October 1, 2025. DOB's vacant buildings page lists yearly fines of $1,000, $2,500 and $5,000 for failing to register.
- Exemption evidence: active construction requires permit numbers from the last 12 months. Sale or rental claims need listing documents, and probate claims need the deed and court papers.
- Appeals: a blight determination is answered with DOB's Blighted Building Response Form and Appeal Checklist (March 2026), sent to dob.blight-economichardship-appeals@dc.gov. It asks for the $350 registration payment, a notarized statement and dated color photos of the front, rear and side; an occupancy claim adds two water or gas bills and two Pepco bills for the period. A denied exemption has its own Exemption Denial Appeal Form.
These lists also tell you what a complete owner file looks like: the classification notice, any registration receipt, the exemption application with its evidence, and DOB's written decision for each fiscal year. DOB's main line is (202) 671-3500, and its office is at 1100 4th Street SW.
Follow the DOB record to the tax display
The FAQ describes DOB sending changes to OTR, with a possible lag before the tax display updates. Date the DOB decision and OTR view separately. Neither a lagging display nor a newer letter settles the other office's current record.
Match identity as well as dates. An address and square-and-lot reference are clues, but a tax lot can differ from a record lot. The DC square-and-lot guide explains why each value needs its source.
If the file mixes years and outcomes
Imagine a fictional packet with a Year A classification notice, faded sticker photo, Year B exemption application and later OTR printout showing the old category. No Year B decision letter appears. The photo does not reverse the notice; the application does not prove approval; the OTR printout does not establish DOB's decision.
Ask DOB for the Year B decision and any later reinspection outcome, using known references. If DOB supplies a decision while OTR shows another status, ask which change was transmitted and which OTR record reflects it. Leave the mismatch open until both offices' dated records can be compared; do not calculate a rate or deadline from this packet.
Recover the missing DOB copy
DOB's FOIA information page links a current Vacant Properties dashboard, not a certified history of a specific notice or decision. It lists portal, mail, fax and email routes for missing DOB records. Name the inspection, notice, reinspection outcome, application or decision; add the printed address, known square and lot, approximate year and notice reference. These details help staff find the file.
An absent dashboard row or sticker does not prove no classification or exemption. It also does not prove permit issuance, final inspection, safety or correct tax treatment. Preserve the issuing office, date, fiscal year and missing document.
Official DOB and OTR pages checked October 8 and October 20, 2026.