410 HASSENPLUG RD, Millmont, PA 17845
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410 HASSENPLUG RD, Millmont, PA 17845
410 HASSENPLUG RD, Millmont, PA 17845
410 HASSENPLUG RD, Millmont, PA 17845
410 HASSENPLUG RD, Millmont, PA 17845
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Listed by Blain Berrier • RSR, REALTORS, LLC
$ 999,999
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410 HASSENPLUG RD Millmont, PA 17845

4 Beds

4 Baths

5,800 SqFt


UPDATED:

Key Details

Property Type Single Family Home

Sub Type Detached

Listing Status Active

Purchase Type For Sale

Square Footage 5,800 sqft

Price per Sqft $172

Subdivision None Available

MLS Listing ID PAUN2000880

Style Other

Bedrooms 4

Full Baths 4

HOA Y/N N

Abv Grd Liv Area 987

Year Built 1969

Annual Tax Amount $4,804

Tax Year 2026

Lot Size 9.170 Acres

Acres 9.17

Property Sub-Type Detached

Source BRIGHT

Property Description

Exceptionally rare opportunity to acquire a Cold War-era underground communications facility, originally constructed between 1967 and 1971 as part of AT&T's Long Lines network and engineered for durability, redundancy, and long-term self-sufficiency.

The property features an approximately 4,813-square-foot below-grade reinforced concrete bunker beneath a 987-square-foot, four-car concrete block garage. The bunker is configured with multiple secured rooms, hardened corridors, mechanical and utility areas, a generator room, decontamination room, full kitchen, and four bathrooms. An elevator connects the above-grade garage to the underground facility, while copper screening within several interior partitions provides additional electromagnetic attenuation.

The facility underwent extensive renovations in the early 2000s to support its potential use as a secure data and communications center. These improvements included updates to the electrical distribution, mechanical systems, and interior spaces for sensitive equipment and long-duration operations.

Power infrastructure includes commercial electric service with automatic transfer capability and a 150 kVA diesel generator supported by approximately 2,500 gallons of on-site fuel storage. Heating and cooling are provided by multiple geothermal heat pumps served by four reported geothermal wells approximately 300 feet deep.

Water infrastructure includes a separate potable well reported to be approximately 125 feet deep, a 1,500-gallon fresh-water storage tank, water filtration, and an on-site septic system. The facility also incorporates multi-stage air filtration designed to support extended below-grade occupancy.

Situated on approximately 9.17 private acres, the property features a high gated perimeter fence, controlled entrance, substantial setbacks, and a discreet, low-profile footprint. The property is located in Flood Zone X and is currently zoned Agricultural Preservation. The existing commercial use has been identified in the appraisal as a pre-existing grandfathered use.

Potential applications include a secure private compound, data center or server facility, continuity-of-operations site, research facility, specialized storage, or other approved uses.

Due to the unique and sensitive nature of the property, certain information is available only to qualified prospective purchasers.

Showings by appointment only. Proof of funds required. All proposed uses, system capacities, operating conditions, zoning, and measurements should be independently verified.

Location

State PA

County Union

Area Hartley Twp (169005)

Zoning COMMERCIAL

Rooms

Basement Fully Finished

Interior

Interior Features Air Filter System, Attic, Bathroom - Jetted Tub, Double/Dual Staircase, Recessed Lighting

Hot Water Electric

Heating Heat Pump(s)

Cooling Geothermal

Heat Source Geo-thermal

Exterior

Parking Features Garage - Front Entry, Oversized

Garage Spaces 3.0

Fence Barbed Wire, Chain Link

Water Access N

View Mountain

Accessibility None

Attached Garage 3

Total Parking Spaces 3

Garage Y

Private Pool No

Building

Lot Description Backs to Trees, Hunting Available, Partly Wooded, Private, Secluded, Rural, Trees/Wooded

Story 2

Foundation Concrete Perimeter

Above Ground Finished SqFt 987

Sewer On Site Septic

Water Well

Architectural Style Other

Level or Stories 2

Additional Building Above Grade, Below Grade

New Construction N

Schools

School District Mifflinburg Area

Others

Senior Community No

Tax ID 005-005987

Ownership Fee Simple

SqFt Source 5800

Security Features Intercom,Main Entrance Lock,Motion Detectors,Security Gate,Security System

Acceptable Financing Cash, Conventional, Bank Portfolio, Joint Venture

Listing Terms Cash, Conventional, Bank Portfolio, Joint Venture

Financing Cash,Conventional,Bank Portfolio,Joint Venture

Special Listing Condition Standard


Bright MLS (BMLS)

NEARBY SCHOOLS & PROPERTIES

Bobbi Farquhar

Bobbi Farquhar

Advisor License ID: 603292

+1(301) 752-3088

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410 HASSENPLUG RD