What is Zillow

Zillow.com is an online Real Estate service that provides information about homes. Zillow can provide detailed information such as estimates on home worth, tax and sale history, trends, comparable properties in the area, and much more.

An API?

Zillow provides an full API so that you can incorporate their detailed data into your own applications. Please refer to Zillow's Terms of Use before using their service.

I am selling the library. It's 25$ for the dll, 50$ for the source or 150$ for the sample site, source and dll. Just enough to cover the time I put into writing it. If you purchase the Sample Site I will offer small customizations (change colors, add a field or two). I can also help you fully integrate Zillow into your site for an hourly fee. This is only .Net 2.0 Compatible (send me an email if you have interest in a 1.1 version, I can change the code easily). The objects mirror the layout of the xml results that come back from Zillow. If you ever have a question about where some data is take a look at the schema provided on Zillow's site and you should be able to follow that hierarchy to get to the data in the object model. I will do my best to provide updates if there is any problem with the library.

Sample Site

Code Examples

Add the using statements:

            using Apt.Services.Zillow;

            using Apt.Services.Zillow.Chart;

            using Apt.Services.Zillow.SearchResults;

            using Apt.Services.Zillow.ZestimateResult;

            using Apt.Services.Zillow.Comps;

Create a ZillowClient to make the requests and specify your Zillow Web Services Id (sign up with Zillow to recieve this). I have not shown every property on every object here. The layout should be 1 to 1 with the xml that is returned. Look at the xml response examples or use intellisense and it should be natural:

             
            ZillowClient client = 
                new ZillowClient("YOUR
                    ZWSID HERE");

            ZillowZestimate zestimate = client.GetZestimate(48749425);

            //zestimate.Message.Text - will be Request successfully
                processed

            //zestimate.Message.Code - will be 0

            //zestimate.Response.Zestimate.Amount.Value - will be $1,169,491

            //zestimate.Response.Zestimate.OneWeekChange.Value - will
                be $17,189

            ZillowComps comps = client.GetComps(48749425,
            5);

            //comps.Response.Properties.Principal.Address.Longitude
                - will be -122.347936

            //comps.Response.Properties.Comparables.Count - will be
                5

            //comps.Response.Properties.Comparables[1].Score - will
                be 1.0

            //comps.Response.Properties.Comparables[1].Zestimate.ValuationRange.High.Value
                - will be $1,303,488

            //comps.Response.Properties.Comparables[1].Zestimate.ValuationRange.High.Currency
                - will be USD

            ZillowRegionChart regionChart =

                client.GetRegionChart("San Francisco",
            "CA", null,
            ZillowUnitType.Dollar, 
                null, null, SimpleChartDuration.OneYear);

            //regionChart.Response.Url - will be http://www.zillow.com/app?chartDuration=1year&chartType=partner
                &cityRegionId=20330&countyRegionId=0&nationRegionId=0&page=webservice%2FGetRegionChart
                &service=chart&showCity=true&stateRegionId=0&zipRegionId=0

            ZillowChart chart = client.GetChart(48749425,
            ZillowUnitType.Percent, 300, 150, 
                SimpleChartDuration.OneYear);

            //chart.Response.Url - will be http://www.zillow.com/app?chartDuration=1year&chartType=partner
                &height=150&page=webservice%2FGetChart&service=chart&showPercent=true&width=300&zpid=48749425

            ZillowSearchResults searchResults = client.GetDeepSearchResults("2114 Bigelow Ave", "Seattle,
                    WA");

            //searchResults.Response.Results.Count - will be 1

            //searchResults.Response.Results[0].LastSoldPrice - will
                be $770,000

            //searchResults.Response.Results[0].Zestimate.Amount.Value
                - will be $1,169,491

            ZillowComps deepComps = client.GetDeepComps(48749425,
            5);

            //deepComps.Response.Properties.Principal.TaxAssessment
                - will be 816000.0

            //deepComps.Response.Properties.Comparables[0].LotSizeSqFt
                - will be 2600

            ZillowSearchResults deepSearchResults = client.GetDeepSearchResults("2114 Bigelow Ave", "Seattle,
                    WA");

            //deepSearchResults.Response.Results[0].FinishedSqFt - will
                be 3,290

            //deepSearchResults.Response.Results[0].Bedrooms - will
                be 4

            //deepSearchResults.Response.Results[0].Zpid - will be 48749425