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How it works

How Ampian AI works

Enter a U.S. address and choose which report you want to run on it. The True Cost Forecaster estimates what the home will cost to own, using a few details you can get from the listing, a tour, or your agent. The Zoning Oracle shows land-use rules, climate risks, and more insights about the neighborhood.

Watch · 1:17
Know the true cost of a home before you buy.
01 · Research on autopilot

Hand off the legwork. Make faster decisions.

Checking a home before you buy means digging through zoning records, hazard maps, tax tables and utility rates. Ampian AI does all of it for you, from the lookups and AI-assisted cost estimation to the final write-up, for one house or a whole shortlist.

You type, Ampian AI automates

It runs the cost forecasts and checks you would otherwise do by hand, across federal datasets, zoning records, and local news. Then it explains the results in plain English.

  • Pick the report you need: True Cost Forecaster or Zoning Oracle
  • About 14 checks that take 2–3 hours by hand, done in minutes
  • Every data source we use is listed on our About our data page
  1. Enter the address
    Any U.S. address, whether or not the home is for sale.
  2. Add details from the listing or a tour
    Size, roughly how old it is, how it’s heated and cooled, and who will live there.
  3. Choose your report
    True Cost Forecaster or Zoning Oracle.
  4. Read the findings
    A clear summary of what matters for this home.
23 Grampian Way
True Cost Forecaster
109 Paseo de la Playa
Zoning Oracle
Your next address
True Cost Forecaster
Ready In Progress

Analyze multiple addresses at once.

House hunting rarely means one house. Start a report, add the next address while it runs, and keep your whole shortlist moving at the same time.

  • Add a new address without waiting for the last one
  • Each report runs on its own, so nothing waits in line
  • See where every address stands in one list

Come back to every report, any time.

Reports are saved to your account. Reopen the True Cost Forecaster or Zoning Oracle reports for any address when you tour it again, talk to your agent or make an offer.

  • Every report you run stays in your account
  • Open any report from any device after you sign in
  • Pick up where you left off as your search changes
True Cost Forecaster
23 Grampian Way, Dorchester, MA
Zoning Oracle
109 Paseo de la Playa, Redondo Beach, CA
Zoning Oracle
23 Grampian Way, Dorchester, MA
Every report you run stays in your account.
02 · True Cost Forecaster

The mortgage was never the whole cost.

Property tax, homeowners insurance, utilities, maintenance and the slow wear on a roof or a boiler all arrive after closing. The True Cost Forecaster estimates each of them as a low-to-high range, tailored to the home, your household, and the local rates and climate, not national averages.

You
Then Ampian AI takes over, on autopilot
  1. STEP 1 · YOU
    Your home

    Your address plus details like size, roof age, appliances and household. You enter them. We don’t inspect the property.

  2. STEP 2 · AUTOPILOT FROM HERE
    Local conditions

    Your area’s weather, utility prices, tax rates and local labor costs, pulled in for you.

  3. STEP 3
    Forecast methods

    Electricity, natural gas and heating oil are estimated from thousands of real homes like yours. Other costs use standard industry formulas and local rates.

  4. STEP 4
    Cost ranges

    Each cost shows a low, typical and high forecast for homes like yours. About 8 in 10 similar homes fall between the low and the high.

  5. STEP 5
    AI Insights

    A short note explains what drives each cost for your home. AI works only from your report’s authoritative data, with guardrails so it can’t add or change a number.

A few details go a long way

They give our AI more context about your home. You already get this information from the listing, a home tour or your agent.

Your area, not a national average

The same house costs more to heat in Boston than in Atlanta. Local weather, prices and wages make the estimate fit your address.

The right method for each cost

Energy use depends on households, so AI learns it from real usage. Tax, insurance, repairs follow known rules, so a formula is more accurate.

Why a range, not one number

How warm you keep the house or how long your showers run can swing a bill, and no model can predict that exactly. A range covers it honestly.

Clear for first-time buyers

Each insight explains in everyday words what drives a cost, so you can understand your numbers without any real estate expertise.

Sample report

What every cost adds up to, on one real address

On our public sample report for 23 Grampian Way in Dorchester, MA, principal and interest come to $96,408 a year. The hidden costs on this page add another:

$31,431–$54,560/yr
Cutaway of a two-story house showing its heat pump, water heater, electrical panel, radiators, attic air handler and ductwork
Energy

How our AI forecasts your energy bills.

Two houses on the same street can have very different bills. One heats with oil and steam, the other with a heat pump and supplemental electric baseboards. We start from how the home is equipped and the climate it sits in, then price that energy usage based on local rates.

01 Electricity AI model trained on real homes Utility rates for your ZIP

From heating to EV charging, every use is estimated month by month.

The annual figure comes from a machine-learning model trained on the federal Residential Energy Consumption Survey: about 13,000 American homes and the electricity they actually used. Given your home’s size, age, equipment and household, it forecasts low, typical and high electricity consumption in kilowatt-hours for the year.

Engineering formulas then work through each use (heating, cooling, hot water, appliances, EV charging, a pool, solar) to spread that year across the months, using 30 years of local climate data. Rates from the utility providers that serve your ZIP code turn kilowatt-hour usage into dollars. If more than one provider serves your area at different rates, the range covers both.

From you
Size, year built, heating and cooling equipment, water heater, appliances, EVs, solar, pool, household size
Public data
Federal energy survey trains the AI, local climate sets the monthly pattern, ZIP-code utility rates set the price
Result
Forecasted monthly costs with a low, typical and high range, plus a plain-language AI insight on your bill

Limits. Rates are typical for your ZIP code. Your provider’s plan, time-of-use pricing and your own habits will move the real bill.

SourcesU.S. Energy Information Administration · National Renewable Energy Laboratory · NOAA

02 Natural gas AI model trained on real homes State natural gas prices

First, does a home like yours use natural gas? Then, how much.

Natural gas follows the same approach as electricity. A model trained on about 11,000 natural gas homes from the same federal survey first judges whether a home like yours uses natural gas at all, then forecasts low, typical and high annual natural gas consumption.

Formulas for each natural gas use you report (space heating, hot water, the stove, the dryer, a heated garage) set the winter-heavy monthly pattern. Usage is priced at your state’s average residential natural gas price over roughly the last three years, with extra room in the range for price swings.

From you
Which systems run on natural gas, size, year built, foundation, household size
Public data
Federal energy survey trains the AI, local climate sets the monthly pattern, state natural gas prices set the price
Result
Forecasted monthly costs with a low, typical and high range, plus a plain-language AI insight on your bill

Limits. A state average price is a benchmark, not your utility’s tariff. Delivery charges and fixed fees vary.

SourcesU.S. Energy Information Administration · NOAA

03 Heating oil AI model trained on real homes Regional oil prices

In an oil-heated home, winter becomes its own budget line.

Oil follows the same approach as electricity and natural gas. An AI model trained on oil-heated homes from the same federal survey forecasts low, typical and high annual oil consumption from your home’s size, age, foundation and heating equipment.

Local climate then spreads that year into a winter-heavy monthly pattern, and gallons are priced at the average for your state or region. Winters and oil prices both swing, so the range for oil is wider than for other utilities. We show that spread rather than hide it.

From you
Oil as the heating fuel, furnace or boiler type and its age, foundation
Public data
Federal energy survey trains the AI, local climate sets the monthly pattern, regional oil prices set the price
Result
Forecasted winter-heavy monthly costs with a low, typical and high range, plus a plain-language AI insight

Limits. Oil prices are regional averages, not your dealer’s quote. Prepaid and budget plans change what you pay.

SourcesU.S. Energy Information Administration · NOAA

Model of a two-story house on a cut-away lot, with a lawn, a tree, landscaped beds, a two-car driveway and patches of snow
Beyond the walls

The lot, the lawn and the driveway all have hidden running costs.

Water use follows the house’s plumbing fixtures and the people who live in it. Yard work and winter service like snow removal follow the land around it and the local season. These estimates assume you pay a professional service for the outdoor work. Doing it yourself costs less.

04 Water & sewer Fixture-by-fixture estimate Latest local rate schedules

Water bills follow the people who live in the home.

We forecast indoor use plus pool top-ups, because there is no reliable data for estimating other outdoor water use such as lawn irrigation. We go one fixture at a time: toilets (sized to the era the home was built), showers, faucets, laundry and the dishwasher, each scaled to the people in the home, plus a small allowance for leaks. For a pool, we add the water needed to replace what evaporates. The pieces are combined so the range reflects that they rarely all run high at once.

Gallons are priced at a combined water-and-sewer rate per 1,000 gallons: the latest published rates of local utilities in several large metro areas, and state or national survey averages where we can’t find a reliable public water and sewer rate.

From you
Household size, number of bathrooms, year built, washer and dishwasher, pool
Public data
National household water-use studies, local or state water and sewer rates
Result
Forecasted indoor and pool costs with a low, typical and high range, plus a plain-language AI insight on your bill

Limits. Indoor use and pool top-ups only: lawn irrigation is not included. Fixed service charges and tiered pricing vary by utility. The model assumes municipal water and sewer; private wells and septic systems are not modeled.

SourcesEPA WaterSense · U.S. Geological Survey · Published local utility rates

05 Landscaping Local growing season Regional wages

A yard requires a recurring service, priced at local wages.

We estimate what a full-service lawn company would charge for mowing through your state’s growing season, a few fertilizer and weed treatments, and seasonal cleanups. The number of visits comes from local frost dates, so a long Southern season costs more than a short Northern one.

Each visit starts from typical published rates, then gets adjusted for landscaping wages in your state and for the size of your lot and lawn. Condos and HOA townhomes don’t get this cost.

From you
Lot size, yard type (mostly lawn, mixed, mostly paved, desert)
Public data
State landscaping wages, local frost dates, published service prices
Result
What a lawn service would charge each month, with a low, typical and high range, plus a plain-language AI insight

Limits. Pricing is set at the state level and assumes routine hired care. Doing some of it yourself, or adding trees, hardscape or design work, changes the number.

SourcesBureau of Labor Statistics · NOAA

06 Snow removal Local snowfall Regional wages

The cost depends on how much snow falls and how big your driveway is.

We look up annual snowfall at the weather station nearest your ZIP code and place the home in a light, moderate, heavy or extreme snow zone. Homes that average less than five inches a year, and condos, typically don’t have a snow removal cost.

Each zone has a seasonal price for plowing and de-icing from published service guides, adjusted to local wages and to the size of your driveway, which we take from your garage. The cost is spread over the months when snow actually falls.

From you
Garage size (for driveway size), property type
Public data
Weather-station snowfall, state wages, published service prices
Result
Seasonal plowing and de-icing costs with a low, typical and high range, plus a plain-language AI insight

Limits. Where no nearby weather station is reliable, a national average is used. Storm counts change from year to year, and contracts can be per visit or per season.

SourcesNOAA · Bureau of Labor Statistics

A two-story house linked to three models labeled Property tax, Insurance and Capital expenditures: a tax record with a parcel map, an insurance document with a house sketch, and a roof section, heat pump and water heater
Long-term ownership

Taxes, insurance and the big replacements.

These are the largest costs after the mortgage and the easiest to underestimate. They depend on the price you pay, your county’s tax rate, what homes in your ZIP code pay for insurance, and how old the roof or major systems are.

07 Property tax County tax rates State rules

The tax bill starts with what you pay for the home.

We multiply the purchase price by your county’s effective tax rate, the share of home value that owners there actually pay in tax.

In states such as California, Florida and Texas, taxes for long-time owners are capped, which keeps the county average low. A sale removes the cap, so we raise the rate to what a new buyer would pay. Some neighborhoods charge an extra tax for local services like water, roads or new schools, and we add it where it applies. Where your area offers a residential or homestead exemption for primary homeowners, we subtract it from the estimate.

From you
Purchase price and address
Public data
Census county tax rates, state property-tax rules, extra local district taxes
Result
First-year tax with a low, typical and high range, plus a plain-language AI insight

Limits. This is a first-year estimate. The local assessor sets the actual bill and confirms whether you qualify for the exemption.

SourcesU.S. Census Bureau

08 Homeowners insurance Premiums by ZIP code Home adjustments

Insurance starts with what homes in your ZIP code pay, then adjusts for yours.

We start with what homeowners in your area pay for insurance on average, updated to today’s prices. If there isn’t enough local data, we use the county or state average instead.

Then we adjust for your home. A bigger home costs more to insure. A newer roof, or brick or steel walls, cost less. Where insurers are raising prices quickly, the range is wider.

From you
Size, roof age, construction type, property type
Public data
Treasury premium data by ZIP code, national insurance industry figures
Result
A standard-policy premium with a low, typical and high range, plus a plain-language AI insight

Limits. Assumes a standard deductible, no recent claims and good credit. Flood insurance is not included. Only an insurer can quote your premium.

SourcesU.S. Treasury Federal Insurance Office · National Association of Insurance Commissioners

09 Capital expenditures Replacement costs Typical service lives

Every major system wears out on its own schedule. We budget for each one.

Each major part of the home (the roof, the furnace or boiler, cooling, the water heater, major appliances, pool equipment) has a typical replacement cost and a typical service life. Costs are adjusted to local construction prices, and the roof is sized from your home’s footprint.

You enter how old each of these parts is. We work out how many years each has left, estimate what replacing it will cost by then as building prices rise, and spread that over the months remaining. A part already past its expected life shows up as a one-time “replace now” cost instead of a monthly set-aside.

From you
Ages of the roof, heating, cooling, water heater and appliances; size; stories; pool
Public data
Published replacement costs, industry service-life studies, regional construction costs
Result
A monthly set-aside by part, with a low, typical and high range, plus a plain-language AI insight

Limits. This is a planning reserve, not a prediction of when anything fails. It does not replace a home inspection.

SourcesU.S. Census Bureau · Industry service-life studies

Also in the report

The costs you set, and the ones that only some homes have.

Principal & interest, PMI and HOA come straight from your loan terms and the fee you enter. PMI drops to zero at a 20% down payment.

Pool maintenance appears when the home has a pool. We estimate what a pool company would charge over your state’s swimming season.

The total adds up every cost in the report. You can switch any cost in or out to see how it changes.

These are planning estimates, not bills or quotes. Home size, age and system details come from what you enter. Ampian AI does not inspect the property.

See the full True Cost sample report ↗
03 · Zoning Oracle

What you can build, what is nearby, and what is changing.

The Zoning Oracle looks up the land-use rules for the lot, checks it for natural hazards like floods and wildfires, shows the schools, shops and transit around it, and flags new development in the area. Then it sums everything up in a short verdict you can read in a minute.

Every fact, rating and verdict comes from public data and set rules, not invented by our AI. It only writes the plain-English explanations. Each report uses the latest data available on the day you run it.

Model of a corner neighborhood block with tree-lined streets, where one two-story house and its fenced lot are highlighted in gold
Your lot and your area

Some findings are about your lot. Others are about the area around it.

The report always tells you which one you are looking at.

About your lot
  • What you can build
  • Short-term rental policy
  • Whether multifamily, commercial or industrial use is allowed
  • Flood zone
About the area
  • Wildfire, earthquake and other risks
  • Schools, groceries and transit
  • New development nearby
  • Home-price trends
1
Locate

First, we pinpoint your lot.

We find exactly where the address sits on the map. That way, every check after it, like zoning and flood risk, is about the right home.

2
Read the rules

Zoning answers what can be built here, and next door.

We look up the parcel’s current zoning at the moment you run the report: the zone code, its name and type, and what it permits. That covers accessory dwelling units (ADUs), multi-family housing, commercial and industrial uses, and short-term rentals.

Zoning codes are written for real estate professionals. The report adds a plain-English zone guide explaining what the designation means for an owner, with a link to the source code. Even as a first-time buyer, you can see what is and isn’t allowed for your home, so you can ask your agent or the county better questions.

Limits. Current zoning is not a building approval. Permits and rezoning proposals are not tracked, and parcel-specific or HOA rules can be stricter.

3
Screen hazards

Flood risk is checked for your lot. Other risks are rated for the area around it.

Flood is the official FEMA flood zone for the property itself, the same designation lenders and insurers use, translated into Minimal, Moderate or High. Where FEMA hasn’t mapped the area, the report says Undetermined rather than calling it low.

Wildfire comes from the U.S. Forest Service’s hazard map of the surrounding landscape. Earthquake, wind, heat, cold, drought, hail and other hazards come from FEMA’s ratings for your neighborhood, which score each risk from very low to very high compared with other areas across the U.S.

Limits. These are screening ratings. Area-level ratings describe the surroundings, not the specific house.

SourcesFEMA · U.S. Forest Service

4
Map daily life

Schools, groceries and transit, measured from your door.

We show the closest public schools, along with other well-rated schools nearby, including private and charter schools. Each one comes with its GreatSchools rating and how far it is from the home.

We also list supermarkets and public transit stops within five miles, closest first.

Limits. Distances are straight-line, not driving distance. Nearby schools are not assigned schools; check attendance zones with the district.

5
Track change

What is being built around the home, from reputable press.

Zoning tells you what is allowed. Development news tells you what is actually happening. An AI search scans an approved list of reputable real-estate, business and transit news outlets, plus government sites, for stories about new projects from the past 12 months.

A story is kept only if its headline names your town, a neighboring town, the county or a nearby neighborhood, and the report shows up to five. Stories about canceled or denied projects stay in the list but don’t count toward the verdict.

Limits. These are news reports, not official records, permits or a rezoning tracker.

6
Read the trend

We show how the area has changed, not guesses about where it’s headed.

Price history. The range of home-price change over the past 5 and 10 years, using your ZIP code where data exists and otherwise the metro area or state. The broader the area, the wider the range.

Rental yield. What a typical two-bedroom in the area rents for over a full year, divided by what homes there are worth. For example, $30,000 a year in rent on a $600,000 home is 5%. Below 5% is Low, 5% to 8% is Moderate, and 8% or more is High.

Neighborhood trajectory. Changes in income, home values and education across recent Census surveys, ranked against other neighborhoods in the same metro, give a High, Moderate or Low reading.

Limits. Past price change does not predict future value. Rental yield doesn’t subtract taxes, upkeep or months the home sits empty. Trajectory compares the neighborhood with its own metro, not the whole country.

SourcesFHFA · U.S. Census · HUD

7
Synthesize

One verdict from a fixed scorecard. AI explains it but can’t change it.

The verdict is calculated, not written. Each factor earns points on a fixed scorecard: price history, rental yield, natural hazards, nearby schools, new development and neighborhood trajectory. The total decides the verdict: Strong Buy, Buy, Consider, Neutral, Pass or Strong Pass.

Some safety rules override the score. If a natural hazard is rated very high, the verdict can’t go above Neutral. If there isn’t enough data, the report doesn’t show a verdict at all. Where a source has no data, the report says Not available instead of guessing.

AI then writes the plain-English explanations. Automatic checks remove any sentence that invents a figure or a place, softens a high climate risk, or argues for a different verdict.

Limits. The verdict covers these measures, not the whole property. It is informational, not financial advice.

What the data can and can’t tell you

Every source has limits. We tell you what they are.

Zoning is not an approval
Current zoning shows what is allowed today, not what a city will permit for a specific project.
Nearby is not assigned
Schools are listed by distance. The district sets attendance zones.
News is not a permit
Development items are press reports, not official records or a rezoning tracker.
History is not a forecast
Price trends describe the past 5 and 10 years only.

Zoning, hazard and neighborhood data are area-level estimates and screening ratings. Verify parcel-specific rules locally.

See the full Zoning Oracle sample report ↗

You’ve seen how it works. Now see it on your home.

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