Warren County real estate,
from the family that lives here.
Homes, farms, commercial property, appraisals, and auctions — handled from the same Main Street office in Hackettstown since 1959. This is not a territory we cover. It is where we live.
Sixty-six years on Main Street.
Warren County is where Fiedler began — Leonard M. Fiedler opened the office in a living room on Main Street in Hackettstown in 1959, and three generations later the firm is still on Main Street. We have spent more than six decades walking this county's farms, pricing its storefronts, and selling its homes.
The county runs from the Delaware River towns — Phillipsburg, Belvidere, the river ridges of Harmony and White — through the farm valleys of Hope, Blairstown, and Frelinghuysen, to the Route 57 corridor and the Musconetcong valley towns we know street by street: Hackettstown, Mansfield, Washington, Oxford, Independence. Every one of them prices differently, and knowing the difference is the whole job.
Because the firm is a full house — brokerage, appraisal, and auction under one roof — we see Warren County from every side: what buyers pay, what courts accept, and what competitive bidding brings on a deadline.
Warren County at a glance
- ✓County seatBelvidere, New Jersey
- ✓22 municipalitiesAll served for brokerage, appraisal & auction
- ✓Home office227 Main Street, Hackettstown — since 1959
- ✓One integrated firmBrokerage · Appraisal · Auction · Business brokerage
The towns we work in Warren County.
All 22 Warren County municipalities — residential, farms & land, and commercial. If it has a Warren County tax lot, we have likely valued, listed, or sold something near it.
Current Fiedler listings in Warren County
Under Contract 
Under Contract 
Everything a Warren County property could need.
Real Estate
Homes, commercial property, and farms & land across Warren County — represented by people who know what each town is actually worth.
Enter →Appraisal
Written, independent valuations for Warren County estates, tax appeals, divorce and litigation, and lending — defensible where it counts.
Enter →Auction
When a defined timeline serves the seller better than a listing — farms, homes, commercial property, and government sales.
Enter →We don't just sell here — we keep the county's stories.
The Sand Bar, the crystal shop at 227 Main, the machinery works, the Christmas Star on Buck Hill — Fiedler collects and publishes the photographs and stories of Hackettstown and Warren County. That's what "all real estate is local" means when a firm has been here since 1959.
Warren County, answered plainly.
How long has Fiedler Real Estate worked in Warren County?
Since 1959. Leonard M. Fiedler founded the firm in Hackettstown, and the office has been on Main Street ever since — now in its third generation of family ownership at 227 Main Street.
What services does Fiedler offer in Warren County?
Full-service brokerage for homes, farms & land, and commercial property; independent real estate appraisal (estates, tax appeals, litigation, lending); real estate auctions through Fiedler Accelerated Marketing; and business brokerage.
Does Fiedler handle farms and land in Warren County?
Yes — farms and land are a core practice, not a sideline. Warren County farmland, building lots, and recreational land are among the properties we list, appraise, and auction most.
Can Fiedler appraise property for an estate or tax appeal in Warren County?
Yes. Fiedler Appraisal provides written, independent valuations used for estates and date-of-death filings, property tax appeals before the Warren County Board of Taxation, divorce and litigation, and lending — delivered in writing within three to four weeks of inspection.
Where is the Fiedler office?
227 Main Street, Hackettstown, NJ 07840 — open Monday through Friday 9–6, Saturday 10–4, and Sunday 12–4. Call (908) 852-2200.
Tell us about your Warren County property.
Buying, selling, valuing, or weighing an auction — we'll tell you straight which path fits, and what your property is really worth here.
Talk to Fiedler