Delaware County, Ohio · Property records guide
Find your parcel, check its value and choose the right county service
The Delaware County Auditor provides property searches by owner, address and parcel number, alongside GIS mapping and valuation resources. Start with the parcel record, then follow the appropriate county link for a tax payment, recorded deed or exemption application.
Reviewed October 23, 2026. This independent guide covers Delaware County, Ohio. Official searches, filings and payments take place through the county resources linked below.
145 N. Union Street, Delaware
Monday–Friday, 8:30 a.m.–4:30 p.m.
Delaware County Auditor property search
Open the Auditor’s real property website and choose the search that matches your information. The owner, address and parcel tools use different entry rules, so select one method before entering your details.
Search by property address
- Open the official Address Search.
- Enter the building number in House Number.
- Enter the main street name in Street Name.
- Omit street directions and suffixes, including N, S, E, W, St, Dr and Av.
- Select Search, then check the location of the matching result.
For example, a search for 125 North Maple Street would use 125 and Maple. This example illustrates the entry format; it does not identify a particular county property.
Search by owner name
The Owner Search accepts a last name followed by a first name, separated by a space. You may also search using only the last name.
If several results appear, compare their addresses and parcel numbers. A property held by a trust or company may appear under that entity’s recorded name.
Search by parcel number
Use Parcel Number Search when you have an identifier from a bill or county correspondence. The portal says dashes and spaces are unnecessary and partial entries are accepted.
The portal’s example is 51943105020000. Enter your own complete identifier for a narrower search, then verify the property before using its information elsewhere.
Read the parcel record before comparing figures
The county’s real estate data page describes access to valuation, levy and tax-distribution information. Begin by checking the parcel identity and relevant year.
| Check | Why it matters |
|---|---|
| Parcel number and location | Confirm that every document concerns the same property. |
| Owner and mailing information | Distinguish the property’s physical location from the address used for correspondence. |
| Tax year | Compare figures belonging to the same period. |
| Value label | Keep market, assessed and proposed values separate when reviewing figures. |
| Tax district | Use the property’s actual district when researching rates. |
| Related records | Follow up with the Treasurer or Recorder when your question concerns a payment or deed. |
Save a dated copy of the information you need. If a field appears wrong, note its exact label and prepare supporting documents before requesting a correction.
Check Delaware County’s 2026 proposed property values
The Auditor’s website announces that 2026 proposed values are available. Its 2026 Triennial Valuation Update page organizes the process into general information, informal-review information and a proposed-value/informal-review portal.
- Read the update information before opening your proposed value.
- Locate the property and confirm its parcel number.
- Compare the proposed value with the correct prior-year figure.
- Follow the current informal-review instructions if you want the county to review it.
Check the notice year. A proposed-value notice, an existing parcel record and a tax bill can describe different stages or periods. Read each document’s year and status before drawing a conclusion.
How the Auditor approaches valuation
The county’s Property Valuation explanation describes cost, income and market approaches. Residential comparisons consider factors such as location, size, age, construction quality and condition.
For your own review, identify differences that affect comparability. A larger home, another school district or a property in substantially different condition may be a weak comparison even when it is nearby.
Use the property tax estimator with care
The official Tax Estimator provides district selections, a market-value field and property-use options. As reviewed on October 23, 2026, its effective-rate label reads Tax Year 2025.
The estimator warns against using a newly proposed property value to calculate taxes. Entering a proposed 2026 value into a tool using another year’s rates does not establish your forthcoming bill.
The tool also identifies limitations involving school-district floor adjustments. Treat its output as an estimate and obtain the actual account balance from the Treasurer.
For district research, the Auditor’s Rates of Taxation page lists annual rate documents. Match the tax year and district; a countywide average cannot replace the rate applicable to your parcel.
Find a property tax bill or make a payment
Use the Treasurer’s Property Payment Search for payment-related research. Questions about a balance or bill go to 740-833-2480.
The Pay My Taxes page links to Point & Pay and explains online, telephone, mail, office, drop-box and bank-payment options.
- Have your parcel number ready.
- Follow the payment link from the Treasurer’s website.
- Confirm the parcel, period and amount.
- Review the payment method and processing fee.
- Keep the confirmation and check that the payment reaches the account.
The published processor fees include 2.30% for credit cards, $3.95 for Visa debit and $0.85 for eCheck. Review the current checkout terms before paying.
For bank bill pay, include the parcel number as the account reference. The Treasurer also offers an escrow program for monthly prepayments; its agreement explains enrollment.
Mail and office payments use 145 North Union Street, Delaware, OH 43015. The county also identifies a drop box in the Hayes Administration Building’s lower parking lot.
Use GIS maps to confirm the property’s location
The Auditor’s GIS page links to mapping that connects county parcels with appraisal information. You can also use the county-linked GIS Property Search.
Open the map and compare its selected parcel with your property record. This is particularly useful for vacant land, corner lots or a purchase involving several adjoining parcels.
Follow the mapping tool’s own search instructions. Address formats can differ between the GIS application and the separate Address Search page.
For a fence, access dispute or construction project, obtain the relevant deed, plat and survey. A screen measurement or aerial parcel outline should not determine a legal boundary.
Homestead Exemption and homeowner application forms
The county’s Homestead Program page explains relief for qualifying older homeowners, people with permanent total disabilities and certain surviving spouses. Ownership, principal-residence and income rules depend on the applicant’s category.
Some county pages and linked forms retain older explanatory dollar amounts. Ask the Auditor to confirm the current application year’s income threshold and benefit amount before deciding whether you qualify.
Choose the appropriate form
The Auditor Forms directory includes:
- DTE 105A: standard Homestead application.
- DTE 105E: disability certification.
- DTE 105I: disabled veterans and qualifying spouses.
- DTE 105G: Homestead addendum.
- DTE 105K: certain surviving spouses of public service officers.
- DTE 105C: owner-occupancy reduction.
Prepare before submitting
The linked DTE 105A application requests parcel, applicant, spouse, ownership and income information. Supporting evidence may include identification, income records, disability certification or documents establishing a qualifying ownership interest.
The posted form states a December 31 filing deadline for real-property applications and different timing for manufactured or mobile homes. Confirm the correct year and current instructions with the Auditor, especially for a late application.
Complete all required signatures and retain a copy of the packet and submission confirmation.
Board of Revision: check the filing year first
The Board of Revision reviews property valuations. Its currently posted instructions cover tax year 2025 complaints through March 31, 2026. That deadline has passed.
The page describes a general January 2–March 31 window. Obtain the next cycle’s instructions before filing about a 2026 value.
Published submission methods include mail, in person, fax and email to [email protected]. Confirm that these remain applicable to your filing cycle.
Useful evidence includes a recent appraisal, purchase documents, condition photographs or comparable sales. Prepare evidence supporting the requested value; higher taxes alone do not establish an incorrect valuation.
Use the applicable complaint form, sign it and retain filing proof. Ask the Board about any deadline or submission detail you cannot establish from the current instructions.
Search recorded deeds and other real estate documents
The Recorder’s Recorded Document Search page explains its online index and links to the search portal.
- Save the owner name and parcel information from your property research.
- Open the Recorder’s instructions and continue to the search.
- Search by name, instrument number or book and page.
- Review the parties, legal description and recording details.
The Recorder describes online real estate coverage from 1990 onward, while noting that some documents are not computerized. Earlier documents require office research.
If a document or image is missing, call 740-833-2460. Keep the instrument number with any request for a copy.
When a property search returns no useful result
| Problem | Next step |
|---|---|
| No address match | Use the house number and main street name; remove directions and suffixes. |
| Too many owner results | Add the first name or switch to a known address. |
| No parcel match | Check the identifier against a county document and remove spaces or dashes. |
| Unexpected value | Compare the year, value label and proposed status. |
| Incorrect physical detail | Record the disputed field and gather supporting evidence for the Auditor. |
| Payment discrepancy | Give the Treasurer the parcel number, amount, date and confirmation. |
If the property belongs to another county, change systems. Nearby resources include our guides to Franklin County property records, Union County parcel searches and Licking County auditor records.
Delaware County Auditor address, hours and contacts
The Auditor’s official website lists 145 N. Union Street, 1st Floor, Delaware, OH 43015, with hours of 8:30 a.m.–4:30 p.m., Monday–Friday.
| Office | Typical question | Telephone |
|---|---|---|
| Auditor | Property records, valuation and exemption applications | 740-833-2900 |
| Treasurer | Tax bills, balances and payments | 740-833-2480 |
| Recorder | Recorded deeds, document images and copies | 740-833-2460 |
Have the parcel number, relevant year and exact question ready. Confirm holiday closures before visiting.
Frequently asked questions
How do I search Delaware County property records by address?
Open Address Search, enter the house number separately and type the street name without a direction or suffix. For 125 North Maple Street, try 125 and Maple.
Can I search for an owner by last name only?
Yes. Owner Search accepts a last name alone or a last name followed by a first name. Check the property address and parcel number before selecting a record.
Should I include dashes in a Delaware County parcel search?
The official Parcel Number Search says dashes and spaces are unnecessary and partial entries are accepted. A complete parcel number helps narrow the results.
Where can I see the 2026 proposed property value?
Use the Auditor’s 2026 Triennial Valuation Update page and follow its proposed-value and informal-review links. Compare the proposed year with the year on your regular parcel record.
Can I use the tax estimator with my new proposed value?
The official estimator warns against calculating taxes from a newly proposed property value. It currently labels its effective rate Tax Year 2025. Use the Treasurer for the actual bill.
Where do I pay Delaware County property taxes?
Use the Delaware County Treasurer’s Pay My Taxes page and its authorized payment link. Have the parcel number ready and review processing fees before submitting.
Which form is used for the Homestead Exemption?
The Auditor lists DTE 105A for the standard Homestead application. Separate forms address disability certification, disabled veterans and certain surviving spouses. Confirm the current year’s requirements with the Auditor.
Does Delaware County accept valuation complaints by email?
The currently posted Board of Revision instructions list email, fax, mail and in-person filing. They cover a period ending March 31, 2026; confirm instructions for the next cycle.
How far back do online Recorder documents go?
The Recorder describes online real estate coverage from 1990 onward, with incomplete computerization for some records. Contact the office for earlier documents or missing images.
What are the Delaware County Auditor’s office hours?
The Auditor lists Monday through Friday, 8:30 a.m. to 4:30 p.m., at 145 N. Union Street, Delaware, Ohio 43015. Call 740-833-2900 before a visit affected by a holiday.
Keep the parcel number with your next request
Find the property, confirm the year and save its identifier. Carry those details into your tax payment, exemption application, deed search or value-review request so the county can locate the correct record.