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Old Mill Park · Indianapolis · Decatur Township

Homes for Sale in Old Mill Park, Indianapolis

A late-1970s neighborhood where the median sale rose from $211,000 to $230,000. Here is what homes sell for, how long they take, and what to check first.

The Old Mill Park market right nowSingle-family closings · 12 months through August 2026
17Sales, last 12 monthsPrior 12 months: 24
$230,000Median sale priceWas $211,000 the year before
46Median days on marketWas 7 the year before
96.8%Of list price, average41% sold at or above list
Middle 80% of sales ran $161,060 to $258,000; median $163 per living sq ft on a median 1,278 sq ft. “Last 12 months” is September 2025 through August 2026; the year before is September 2024 through August 2025. At 17 sales a year, one or two big closings move the median, so I pull actual comparables for any specific house. Source: MIBOR Broker Listing Cooperative, single-family closings with the MLS subdivision name Old Mill Park, pulled October 3, 2026.

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The honest version

What Old Mill Park Is Actually Like

Old Mill Park is in Decatur Township, in the Metropolitan School District of Decatur Township per MLS records. The homes that sold here in the last two years were mostly built between 1978 and 1982, a mix of one-story and two-story homes.

The MLS shows 17 closings in the last 12 months against 24 the year before, at a median of $230,000, up from $211,000. Homes went under contract in a median of 46 days, up from 7, and closed at 96.8% of list on average, with 41% closing at or above list.

Old Mill Park's median sale was $230,000, up from $211,000. The middle 80% of sales ran $161,060 to $258,000 (MIBOR).

What you are actually buying: a smaller house, usually around 1,278 square feet and more than 40 years old. What you are giving up: speed. Median days on market rose from 7 to 46, so ask for comparable sales before you offer.

Live listings

Browse Old Mill Park Homes by Price

Every search below is live MLS data. Save one and you'll get new matches by email the morning they list.

How it breaks down

What to Know Before You Buy in Old Mill Park

Dues, size range and a thin sample.

Dues and amenities

Association dues are not part of the MLS data behind this page, so I am not quoting a number. Ask the listing agent for the current dues and what they cover, then confirm with the association itself.

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A wide size range

Homes here ran from about 991 to 1,802 square feet in the last two years, so a price per square foot of $163 is a better comparison than the sale price alone.

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Build years

Homes here were built between about 1978 and 1982, so check the year built of any comparable you rely on.

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A small sample

At 17 sales in 12 months, one or two unusual closings can move the median. I pull actual comparables for any specific house.

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Schools & the ballot

Metropolitan School District of Decatur Township

Old Mill Park sales in the MLS list Metropolitan School District of Decatur Township as the district. Which elementary, middle and high school an address feeds into can change with boundary updates, so confirm the assignment for the specific address with the district.

The ballot

The district's current operating referendum was approved in 2019 and expires December 31, 2027. On November 3, 2026, voters decide a “Reduce & Replace” referendum that would replace it with a lower maximum rate for eight years, the 2027 through 2034 budget years. Published figures for the rate differ, so check the ballot language. Referendum rates sit outside the 1% cap.

Living here

The Drive, Taxes & Fit

The drive

Drive your actual commute at your actual start time before you commit.

Taxes

Indiana caps homestead property tax at 1% of gross assessed value under the circuit breaker, so most owner-occupants land at or near that figure before any voter-approved referendum rate, which sits outside the cap. Rentals and second homes are capped at 2% and should be modeled separately. Marion County's local income tax is 2.02%, per the Indiana Department of Revenue's county rate notice effective October 1, 2026. Confirm assessments with the Marion County Assessor.

Who Old Mill Park is wrong for

If you want a lower entry price, compare Mars Hill, which sold at a median of $115,950. If you want a newer house, see Crossfield. For all of Decatur Township, see my Decatur Township guide.

Questions I get weekly

Buying in Old Mill Park

What do homes in Old Mill Park sell for?

The median single-family sale in Old Mill Park was $230,000 over the 12 months through August 2026, on 17 closings, and the middle 80% of sales ran $161,060 to $258,000 (MIBOR BLC).

How fast do Old Mill Park homes sell?

The median was 46 days on market over the last 12 months, against 7 the year before, and 41% of homes closed at or above list price.

How much are Old Mill Park HOA dues?

Dues are not part of the MLS data behind this page. Ask the listing agent and confirm with the association.

What school district serves Old Mill Park?

Metropolitan School District of Decatur Township in MLS records. Confirm the specific school assignment for the address with the district.

When were homes in Old Mill Park built?

Most homes that sold in the last two years were built between 1978 and 1982, with a median build year of 1979.

Is there a school referendum near Old Mill Park?

The district's current operating referendum was approved in 2019 and expires December 31, 2027. On November 3, 2026, voters decide a “Reduce & Replace” referendum that would replace it with a lower maximum rate for eight years, the 2027 through 2034 budget years. Published figures for the rate differ, so check the ballot language. Referendum rates sit outside the 1% cap.

Your Realtor

Thinking About Old Mill Park? Let's Talk.

I'm Wes Johnston, a Realtor with Trueblood Real Estate, based in Fishers. I cover the whole Indianapolis metro, and every guide on this site is built the same way: MIBOR numbers, public sources, and the trade-offs a listing description won't mention.

My job isn't to open doors. It's to tell you what a house is actually worth, what's wrong with it, and whether it's the right move for what you're trying to do — then negotiate hard on your behalf and own the process from contract to close.

If you're two years out, that's fine. Most of my best clients started with a question, not a showing.

Wes Johnston
REALTOR® · Trueblood Real Estate · License #RB18001276

Fishers-based. Honest numbers, every part of the metro. Committed to your success.

For buyers

See Old Mill Park Listings the Day They List

About 17 homes sold here in the last year. A saved search gets you each new Old Mill Park listing the morning it hits the market.

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For sellers

What's Your Old Mill Park Home Worth?

Not a national algorithm guessing from square footage. A real valuation based on what's actually selling near you, from someone who has been inside those houses.