Montgomery County property record for 504 Carr Ave, Rockville, MD 20850
| Property Type | Single Family Home |
|---|---|
| Details | 2.5 ba · 1,998 sqft · built 1963 |
| Lot Size | 0.281 acres (12,256 sqft) |
| Owner | Individual Name on File |
| Last Sale | $680,000 (Aug 2021) |
| Tax Bill | $9,520 (2025) |
| Deeds & Mortgages | Aug 2021 Sale & Mortgage Apr 2021 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 04-00233233 |
| Primary APN | 04-00233233 |
|---|---|
| Alternative APN |
|
| Full Baths | 2.5 Baths |
|---|---|
| Half Baths | 1 Half Bath |
| Stories | 1 Story |
| Building Area | 1,998 sqft Living Area |
| 1st Floor Area | 1,598 sqft |
| Basement Area | 400 sqft |
| Finished Basement | 400 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1963 |
|---|---|
| Effective Year Built | Effective 1963 |
| Architectural Style | Townhouse |
| Exterior Material | Other |
| Roof Material | Composition Shingle |
| Lot Area | 12,256 sqft (0.281 acres) |
| Garage Type | Carport |
| Garage Area | 210 sqft |
| Carport | Carport |
| Carport Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Open Porch |
| Porch Area | 348 sqft |
| Deck Area | 399 sqft |
| Cooling System | HVAC |
|---|---|
| Heating System | HVAC |
| Sewer | Municipal |
| Account Number | 00233233 |
|---|---|
| Street Address | 504 CARR AVE |
| City | ROCKVILLE |
| State | MD |
| Zip | 20850-2110 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R60 |
| Legal Description | WEST END PARK SEC 4 7723/694 |
| Legal Subdivision | WEST END PARK |
| Legal Block | 14 |
| Legal Lot Number | 59 |
| Jurisdiction | MONTGOMERY MD |
| Township / Civil Division | 4 |
| Census Block Group | 4 |
| Census Block | 4010 |
| Census Tract | 701004 |
504 Carr Ave is owned and occupied by an individual who bought it in August 2021.
Source: Montgomery County records, as of October 9, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 504 CARR AVE, ROCKVILLE, MD 20850-2110 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Aug 19, 2021 | Deed, Transfer · Conventional Mortgage TOWNEBANK MORTGAGE |
| Apr 12, 2021 | Deed, Transfer · Conventional Mortgage JEC ONE LLC |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Aug 19, 2021 · Amount on File |
| Deed Sale | Aug 19, 2021 · Amount on File |
| Prior Sale | Apr 12, 2021 · Amount on File |
| Deed Book / Page | 63802 / 146 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Aug 19, 2021 |
| Property Address | 504 CARR AVE, ROCKVILLE, MD 20850-2110 |
| Document Number | 0638020146 |
| Book / Page | 63802 / 146 |
| Map Reference | MB 72 PL 6870 |
| Instrument Date | Jul 20, 2021 |
| Transaction Type | Transfer |
| Record Updated | Aug 11, 2022 |
| Title Company | KVS TITLE LLC |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $10,200.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Tenants in Severalty |
| Address | 504 CARR AVE, ROCKVILLE, MD 20850-2110 |
| Document Number | 0063802152 |
|---|---|
| Date | Aug 19, 2021 |
| Instrument | 63802/152 |
| Name | TOWNEBANK MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Aug 1, 2051 |
| Document Type | Deed |
|---|---|
| Jurisdiction | MONTGOMERY MD |
| Recording Date | Apr 12, 2021 |
| Property Address | 504 CARR AVE, ROCKVILLE, MD 20850-2110 |
| Document Number | 0625020377 |
| Book / Page | 62502 / 377 |
| Map Reference | MB 72 PL 6870 |
| Instrument Date | Jan 29, 2021 |
| Transaction Type | Transfer |
| Record Updated | Aug 11, 2022 |
| Title Company | OLDE STONE TITLE, OLDE TOWNE TITLE INC |
| Amount | Amount on Record |
|---|---|
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $6,000.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 267 KENTLANDS BLVD # 5048, 5048, GAITHERSBURG, MD 20878-5446 |
| Document Number | 0062502382 |
|---|---|
| Date | Apr 12, 2021 |
| Instrument | 62502/382 |
| Name | JEC ONE LLC |
|---|---|
| Type | Non-Lending Institution |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 4 Months |
| Due | Jul 31, 2021 |
The 2025 property tax bill for 504 Carr Ave was $9,520.
Source: Montgomery County assessment roll, as of August 17, 2026
| Type | Name |
|---|---|
| State | Maryland |
| County | Montgomery County |
| Municipality | Rockville City |
| Unified School District | Montgomery County Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $745,167 (+5.48%) | $783,900 (-) Land $398,600 Building $385,300 | |
| 2025 | $9,520.00 | $706,433 | $783,900 Land $398,600 Building $385,300 |
| 2023 | $616,767 | $667,700 Land $379,600 Building $288,100 | |
| 2022 | $7,262.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 504 Carr Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective April 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 504 Carr Ave has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ROCKVILLE serves 52,000 people · EPA ID MD0150003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | Under 1 ppb (2018) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 413 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber | 2,300 / 2,300 |
| Xfinity Cable | 2,000 / 250 |
May also be available: AT&T, T-Mobile.
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