401 ARMSTRONG PL
Tax & Assessment
Property Facts
Transaction History(1)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
District: Montgomery County Public Schools
Neighborhood · ZIP 20878These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
Index scale: 100 = US average (tick). Lower is better.
Owner Tools
Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
401 Armstrong Pl measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Has a bigger lot than 75% of homes in Gaithersburg
How it measures up in Gaithersburg 20878
The dot is this home. The mark in the middle is the typical home in Gaithersburg 20878.
Bigger than 51% of homes nearby
| Measure | This home | Gaithersburg | Gaithersburg 20878 | Montgomery County |
|---|---|---|---|---|
| Lot sizebigger than | 0.12 ac | 75% of homes | 51% of homes | 39% of homes |
About 401 Armstrong Pl
When did 401 Armstrong Pl, Gaithersburg, MD last sell?
401 Armstrong Pl, Gaithersburg, MD last sold on Jan 1, 1900, according to the county's recorded deed.
What schools serve 401 Armstrong Pl, Gaithersburg, MD?
401 Armstrong Pl, Gaithersburg, MD is assigned to Rosemont Elementary School (elementary), rated C; Gaithersburg High School (high), rated D; Forest Oak Middle School (middle), rated D-. All sit in Montgomery County Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.
What are the property taxes on 401 Armstrong Pl, Gaithersburg, MD?
The 2025 property tax bill for 401 Armstrong Pl, Gaithersburg, MD was $291.
More homes on Armstrong Pl
- 303 Armstrong Pl$1.1M4 ba · 3,046 ft² · Sold $1.1M · Aug 2026
- 407 Armstrong Pl$1M4.5 ba · 2,360 ft² · Sold $1M · May 2026
- 111 Armstrong Pl$961K4.5 ba · 2,480 ft² · Sold $950K · Feb 2026
- 123 Armstrong Pl$1.2M4.5 ba · 3,044 ft² · Sold $1.2M · Dec 2024
- 207 Armstrong Pl$967K4 ba · 2,480 ft² · Sold $920K · Sep 2024
- 315 Armstrong Pl$1.2M5 ba · 3,032 ft² · Sold $1.2M · Jul 2024
- 51 Armstrong Pl$997K4.5 ba · 2,400 ft² · Sold $965K · Jun 2024
- 415 Armstrong Pl$1.1M4.5 ba · 3,024 ft² · Sold $900K · Aug 2023
- 411 Armstrong Pl$890K4.5 ba · 2,360 ft² · Sold $770K · Jun 2023
- 403 Armstrong Pl$1.1M4.5 ba · 3,024 ft² · Sold $997K · Jun 2023
- 211 Armstrong Pl$958K4 ba · 2,480 ft² · Sold $876K · Nov 2022
- 423 Armstrong Pl$1.1M4.5 ba · 3,024 ft² · Sold $997K · Nov 2022
Closest homes
- 1221 Rockwell Ave$792K47 ft · 4 ba · 1,968 ft² · Sold $705K · Mar 2022
- 419 Armstrong Pl$1.3M49 ft · 4 ba · 3,037 ft² · Sold $1.1M · Nov 2022
- 415 Armstrong Pl$1.1M47 ft · 4.5 ba · 3,024 ft² · Sold $900K · Aug 2023
- 1217 Rockwell Ave$797K54 ft · 4 ba · 2,000 ft² · Sold $691K · Mar 2022
- 1225 Rockwell Ave$1.1M53 ft · 4.5 ba · 3,024 ft² · Sold $1.1M · Nov 2022
- 1213 Rockwell Ave$791K64 ft · 4 ba · 1,968 ft² · Sold $682K · Mar 2022
- 423 Armstrong Pl$1.1M68 ft · 4.5 ba · 3,024 ft² · Sold $997K · Nov 2022
- 411 Armstrong Pl$890K63 ft · 4.5 ba · 2,360 ft² · Sold $770K · Jun 2023
More homes in Gaithersburg 20878
- 1019 Hillside Lake Ter$399K1 ba · 1,109 ft² · Sold $399K · Sep 2026
- 14 Blue Silo Ct$495K2.5 ba · 1,750 ft² · Sold $490K · Sep 2026
- 835 Flagler Dr$539K2.5 ba · 1,408 ft² · Sold $545K · Sep 2026
- 1 Big Acre Sq$440K1 ba · 1,253 ft² · Sold $468K · Sep 2026
- 870 Bayridge Dr$549K2.5 ba · 1,360 ft² · Sold $540K · Sep 2026
- 15622 Blackberry Dr$1.2M3.5 ba · 5,135 ft² · Sold $1.2M · Sep 2026
- 12815 Doe Ln$1.1M2.5 ba · 3,788 ft² · Sold $1.1M · Sep 2026
- 16 Redding Ridge Dr$790K3 ba · 2,272 ft² · Sold $790K · Sep 2026
- 664 W Side Dr$350K1 ba · 1,382 ft² · Sold $350K · Sep 2026
- 875 Diamond Dr$542K3 ba · 1,920 ft² · Sold $700K · Sep 2026
- 510 Diamondback Dr$550K1,000 ft² · Sold $550K · Sep 2026
- 108 Salinger Dr$900K4.5 ba · 2,408 ft² · Sold $870K · Sep 2026
Assigned schools
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