What Is “Mapping Penn”?
“Mapping Penn: Land Acquisitions, 1870 – 2007” is an online
mapping application that allows users to access, analyze and map data about
University of Pennsylvania properties based on University Archive records. These
records incorporate 12 data elements, grouped into two categories:
- Land Purchase and Sale Data
- Parcel and Location Data
The website is designed to assist University-based planning
and development, scholarly research and the general public in efforts to
analyze, interpret and understand the history of the growth of the University of Pennsylvania campus in West Philadelphia. The online mapping and reporting tools
can be used to focus on a specific lot, name, year, or address. Users are able
to create maps, reports, and queries.
This User Guide highlights the features and functions
available in the application. The user may rely on standard hardware and
software in accessing and utilizing the site (recommended web-browser: Internet
Explorer 7.0 or higher, using a Windows platform).
Table of Contents
- Overview /Main Page
- Main Toolbar
- Navigation Menu/Legend
- Search Queries
- Results/Details Report
- Data Dictionary
1. Overview/Main Page

2. Main Toolbar
The toolbar allows you to interact with the map by clicking on the map with
a tool. For example, if you click in the toolbar on the Zoom In tool, then
click on the map, the map will zoom in around where you click.
Note: Some tools do an action immediately. These include the
Full-extent tool.
- In the toolbar, click on the tool you want to use.
- Move the cursor over the map. The cursor may change to
indicate the tool you are using.
- Click on the map with the left mouse button. Note:
Some tools work by depressing the mouse and dragging the cursor to draw a
rectangle, line or polygon, then releasing the mouse button.
- The results depend on the tool. The map appearance may
change, such as zooming in or out. Or the results may appear in the
Results section, such as with the Identify tool.
|
Name
|
Icon
|
Description
|
|
Zoom in
|

|
Click
and drag a rectangle:
Click and hold the left mouse button down on the map at one corner of the
rectangle to zoom in to. Drag the mouse to the other corner of the rectangle,
and release the mouse button. The map will zoom in to the area of the
rectangle.
|
|
Zoom out
|

|
Click
and drag a rectangle:
the map will zoom out so that the current map area will fit into the
rectangle drawn. The smaller the rectangle you draw, the more the map will
zoom out.
|
|
Pan (recenter)
|

|
Click
and drag the map:
Click and hold the left mouse button on the map, and drag the map. The map
will be recentered, with the location dragged at the location you dropped it.
|
|
Full extent
|

|
Full
extent:
Immediately zooms the map out to the area of all features and layers. The
active tool does not change.
|
|
Identify
|

|
Click
to identify:
Click with the left mouse button on the map to identify any property and pull
up a small details window.
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Print
Map
|
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Click
to Print Map:
Map will open with legend in new menu; follow Print window settings and instructions
(you may need to set your browser to “allow pop-ups” to see the new window).
|
3. Navigation Menu/Legend
The Legend section of the map controls which layers appear
on your map. By clicking the check box next to each option, you can view or remove
the following layers from the Main Map:
- Parcels and Buildings: displays the parcel outlines or
building footprints, respectively, for the entire Main Map
- Acquisition Date: displays distinct color blocks for University
properties acquired during 10-year spans beginning in 1870 (e.g.
1881-1890, 1951-1960, etc.)
- Other Layers: Other administrative layers can be
displayed to customize the map:

4. Search Queries
You can search for properties by location and date of
acquisition. Selecting one of the search options opens a separate window where
you can enter or select search criteria such as street name, building name,
seller name and date purchased:
- Find by Year and Name
- Find by Year and Block
- Find by Address
- Find by Year

Click “Find” to display search results in the Results
window.
5. Results and Details Report
Properties matching your search criteria are displayed in an
expandable menu in the Results window.

Clicking on a plus ( + ) sign will expand the results and
show property details. Right-clicking on any address will allow you to Zoom to
that property on the map or remove the property from the results list.
Clicking on the link for the Reg. Map No. will open a separate window with a
printable property report:

6. Data Dictionary
About the Mapping Penn Data Dictionary
This data dictionary provides simple definitions for each
data element in the Mapping Penn application using the following format:
Data Element Name
Brief definition including any special notes or considerations
Data elements are organized alphabetically.
Address
Street address commonly associated with parcel.
Addresses were taken from the deed records at the Department of Records,
City of Philadelphia; the Deed Registry data maintained by the Department of
Records; deed records in the collections of the University Archives and Records
Center, University of Pennsylvania (transferred from the Office of the
Treasurer, University of Pennsylvania); and Sanborn fire insurance atlases in
the collections of the University Archives.
Area
Square foot area measure of the parcel. These figures
were calculated with GIS software and not taken from the legal descriptions
found in the deed records.
Book/Page
Philadelphia deed book title, volume number, and page
assigned to each land transaction by the Department of Records, City of Philadelphia. All Philadelphia land records are available to the public at the
Department of Records. In 2000, the Department of Records stopped using
the deed book title, volume number, and page system and began assigning a
single, unique transaction number to each land transaction.
Buyer/Grantee
Personal or corporate name of the party who acquired the
property. In the majority of cases this will the Trustees of the University of
Pennsylvania or a corporate entity which is or was controlled by the University
(such as, OAP, Incorporated; Pegasus, Incorporated; Thomas W. Evans Museum and
Institute Society; University City Associates, Incorporated; Veronica,
Incorporated) or agencies that acquired land for the University’s use (such as,
the General State Authority and Pennsylvania Higher Educational Facilities
Authority).
Date
Date of the land transaction.
Notes
Any special information regarding a parcel, e.g.,
information which does not conform to data standards.
Property File Number
File number assigned to the property by the Office of the
Treasurer, University of Pennsylvania.
Price
The consideration for which the property was sold. The
price refers to all parcels contained in each land transaction and may not
represent the price of an individual parcel. The user should note that
many land transactions include several parcels of land.
Registry Plan No.
The unique Deed Registry Plan and Plot Number assigned to
the parcel by the Department of Records, City of Philadelphia.
Seller/Grantor
Personal or corporate name of the party who sold the
property.
Transaction Notes
Any special notes regarding the transaction, such as any
mortgage or other conditions to which the property is subject.
Type
Type of land transaction, such as deed or lease.
Sources
Unless otherwise noted in the Transaction Notes, all the
data for Mapping Penn was taken directly from the deed records at the
Department of Records, City of Philadelphia and the deed records in the
collections of the University Archives and Records Center (transferred from the
Office of the Treasurer, University of Pennsylvania). Please note that
the data on the Registry Plan numbers was compiled from the Department of
Records’ Deed Registry Plans, now available on-line at ParcelBase.