Loudoun County property record for 43438 Mountcastle Dr, Chantilly, VA 20152
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 5,250 sqft · built 2005 |
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $735,000 (May 2018) |
| Tax Bill | $9,427 (2026) |
| Deeds & Mortgages | Mar 2021 Refinance Sep 2019 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 129-39-6685-000 |
| Primary APN | 129-39-6685-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Plumbing Fixtures | 17 Plumbing Fixtures |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 5,250 sqft Living Area |
| 1st Floor Area | 1,482 sqft |
| Basement Area | 1,398 sqft |
| Finished Basement | 1,398 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 2005 |
|---|---|
| Effective Year Built | Effective 2008 |
| Architectural Style | Colonial |
| Exterior Material | Brick/Stone |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 10,454 sqft (0.24 acres) |
| Garage Type | Attached |
| Garage Area | 814 sqft |
| Porch | Stoop |
| Porch Area | 36 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Heating Fuel | Gas |
| Street Address | 43438 MOUNTCASTLE DR |
|---|---|
| City | CHANTILLY |
| State | VA |
| Zip | 20152-2585 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R4 |
| Legal Description | POLAND ROAD PROPERTY SEC.1 LOT 88 200605250046331 200404070032360P |
| Legal Subdivision | POLAND ROAD PROPERTY |
| Legal Block | 2 |
| Legal Lot Number | 88 |
| Jurisdiction | LOUDOUN VA |
| Township / Civil Division | DULLES |
| Census Block Group | 2 |
| Census Block | 2003 |
| Census Tract | 611804 |
43438 Mountcastle Dr is owner-occupied and held in a trust since May 2018.
Source: Loudoun County records, as of September 21, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 43438 MOUNTCASTLE DR, CHANTILLY, VA 20152-2585 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
| Date | Document |
|---|---|
| Mar 3, 2021 | Deed of Trust, Mortgage · Stand-Alone Refinance GUARANTEED RATE INC |
| Sep 19, 2019 | Deed of Trust, Mortgage · Conventional Mortgage GUARANTEED RATE |
| May 1, 2018 | Warranty Deed, Transfer · Conventional Mortgage FIRST HM MTG CORP |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 1, 2018 · Amount on File |
| Deed Sale | May 1, 2018 · Amount on File |
| Prior Sale | May 25, 2006 · Amount on File |
| Deed Document Number | 201824126 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOUDOUN VA |
| Property Address | 43438 MOUNTCASTLE DR, CHANTILLY, VA 20152-2585 |
| Transaction Type | Mortgage |
| Record Updated | Dec 23, 2021 |
| Title Company | RAVENSWOOD TITLE COMPANY LLC |
| Name | Verified Name |
|---|
| Document Number | 0000026118 |
|---|---|
| Date | Mar 3, 2021 |
| Instrument | 202103030026118 |
| Name | GUARANTEED RATE INC |
|---|
| Type | Stand-Alone Refinance |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Mar 1, 2051 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | LOUDOUN VA |
| Property Address | 43438 MOUNTCASTLE DR, CHANTILLY, VA 20152-2585 |
| Document Number | 20190924057312 |
| Instrument Date | Sep 19, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Oct 8, 2019 |
| Title Company | NOT AVAILABLE |
| Name | Verified Name |
|---|---|
| Address | 43438 MOUNTCASTLE DR CHANTILLY VA 201522585, CHANTILLY, VA 20152-2585 |
| Document Number | 20190924057312 |
|---|---|
| Date | Sep 24, 2019 |
| Instrument | 57312 |
| Name | GUARANTEED RATE |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Sep 23, 2049 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Warranty Deed |
|---|---|
| Jurisdiction | LOUDOUN VA |
| Recording Date | May 1, 2018 |
| Property Address | 43438 MOUNTCASTLE DR, CHANTILLY, VA 20152-2585 |
| Document Number | 20180501024126 |
| Instrument Date | Apr 30, 2018 |
| Instrument | 24126 |
| Transaction Type | Transfer |
| Record Updated | Feb 17, 2021 |
| Title Company | NOT AVAILABLE |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $735.00 |
| Amount Accuracy | Confirmed |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 43438 MOUNTCASTLE DR CHANTILLY VA 201522585, CHANTILLY, VA 20152-2585 |
| Document Number | 20180501024127 |
|---|---|
| Date | May 1, 2018 |
| Instrument | 24127 |
| Name | FIRST HM MTG CORP |
|---|
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|
The 2026 property tax bill for 43438 Mountcastle Dr was $9,427.
Source: Loudoun County assessment roll, as of September 18, 2026
| Type | Name |
|---|---|
| State | Virginia |
| County | Loudoun County |
| Unified School District | Loudoun County Public Schools (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $9,427.00 | $1,171,140 Land $299,700 Building $871,440 | $1,171,140 Land $299,700 Building $871,440 |
| 2023 | $8,573.00 | $979,790 Land $314,700 Building $665,090 | $979,790 Land $314,700 Building $665,090 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 43438 Mountcastle Dr in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 2020.
Source: FEMA National Flood Hazard Layer, effective June 15, 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 |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 3 (2020–2022) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | May 2022 · other causes |
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.
Wildfire risk around 43438 Mountcastle Dr is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 93% of the US · lower than 95% of Virginia |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 | LOUDOUN WATER - CENTRAL SYSTEM serves 334,808 people · EPA ID VA6107350 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2024 |
| Lead | Under 1 ppb (2024–2026) 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 349 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 2,000 |
| Verizon Fiber | 980 / 880 |
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