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Sample report

A real GeoLocity report for Brambleton — Loudoun County, Virginia — shown fully unlocked so you can see everything a complete report includes.

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Before you read this one

What is “Data Center Alley”?

A data center is a building full of computers that runs the internet — websites, cloud storage, AI. They are ordinary-looking physical buildings on real land, and they need two things in large quantities: electricity, and water for cooling.

Data Center Alley is the nickname for the area around Ashburn in Loudoun County, northern Virginia — home to one of the densest concentrations of data centers in the world. This sample is a residential neighborhood there: Brambleton, where the report below finds the nearest data center about three-tenths of a mile away and 219 data center sites (427 buildings) inside the scan radius.

Why this matters to a landowner anywhere: when this industry clusters near land, it changes two things you can’t see from the surface — demand for nearby land, and competition for local water. The industrial water-demand scan in this report makes both visible for any parcel. Most parcels show a quiet result; this one shows what it looks like when the industry has truly moved into the neighborhood.

What the national research says: the National Association of REALTORS® 2026 Data Center Impact Report found no single “data center effect” on home values, and its research director recommends judging it property by property — proximity, visibility, local infrastructure. The distances and water context below are that property-level view for one address.

Subsurface signal report

Brambleton — Loudoun County, Virginia

39.0155, -77.4980
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01 · Data Centers · this parcel

219 data centers within 25 miles

  • Data centers can use large volumes of water directly for cooling — it depends on the facility's cooling system — and the electricity that powers them often needs cooling water too, back at the power plant. Either draw can pull from the same aquifer your well or local utility relies on.

Each finding names its source in the cards below. Every chip under the map is live: switch a layer on or off and the map answers.

01Data Centers

Data centers nearby

219 within 25 miles

219 data-center sites are on record within 25 miles; the closest is 0.8 miles away. 26 are announced, permitted or under construction rather than running, so it's worth asking the city what is planned.

Public permit, registry and map records, plus news; each facility links its record below.

Power use in homes

Not published

The nearest data center, DataBank Ashburn IAD4, is 0.8 miles from this address and recorded as operating. None of its records state how much electricity it uses, so there is nothing to count in homes.

Not publishedno figure to countFor scale: 1 MW running all year ≈ 800 homes

Facility records linked under Data centers nearby; U.S. EIA average home electricity use, 2022 (1 MW running all year ≈ 800 homes).

Power lines and substations

Substation 0.5 mi

The nearest mapped substation (34.5 kV) is 0.5 miles away and a high-voltage line (230 kV) runs 0.9 miles away. Big grid equipment is common near data centers; being close doesn't mean it serves this property.

OpenStreetMap volunteers' mapping of lines and substations (ODbL).

Heat and cooling

0.4 days a year at 100°F+ (weather model)

Air temperature here: the regional weather model shows about 0.4 days a year at 100°F or hotter (2021–2025). The model averages over a large grid square, so nearby weather stations can record more hot days. Hotter days mean more cooling for any data center nearby, which draws more power and can draw more water. Ground-surface temperature: satellites measure the ground at data center sites, not at your address. This report checks data centers within 10 miles of the address, but it doesn't include a satellite reading for the nearby sites.

ERA5 weather reanalysis (ECMWF / Copernicus); NASA ECOSTRESS surface temperature, GeoLocity heat check thermal-v1.

Cost of electricity

14.1¢ per kWh (2024)

Homes on Virginia Electric & Power Co paid about 14.1¢ per kWh in 2024. That is about 16% more than in 2020. The record shows the rise, not its cause, but it belongs in a monthly budget. The local grid (SERC Virginia/Carolina) releases about 593 lb of CO₂ for every 1,000 kWh used, and about 10% of its power is renewable.

U.S. Energy Information Administration (EIA-861) utility filings; EPA eGRID for the grid mix.

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