Property record

1101 Market St, Philadelphia

Office in Philadelphia, Pennsylvania. It covers 23,046 square feet on the ground.

This building

1101 Market St, Philadelphia. Office in Philadelphia, Pennsylvania. Property ID sp766vpw4h0fxdd.

Facts about 1101 Market St, Philadelphia
Fact	Value	Source
Address	1101 Market St, Philadelphia, PA	County and state public records
Building type	Office	USA Structures and SkyPSI estimator
Footprint	23,046 square feet	USA Structures
Perimeter	615.63 feet	USA Structures
Height	442.59 feet	Overture Maps building footprints and Google Open Buildings
Stories	35 stories	Overture Maps building footprints and Google Open Buildings
Exterior wall area	272,468 square feet	SkyPSI estimator
Parcel number	883308700	County and state public records
Land use	OFFICES - OFF BLD COM NO GAR MASON	County and state public records

Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. What the grades mean.

Exterior soft wash from a boom lift and by rope access, whole building
Service	Low	Most likely	High
Facade wash, conventional access	$41,500	$75,000	$125,000

Window cleaning by rope access, whole building
Service	Low	Most likely	High
Exterior windows, rope access	$55,500	$111,000	$194,500
Windows inside and out, rope access	$61,000	$122,500	$217,000

Exterior soft wash: Boom lift and Rope access fit this building at the same cost, most likely $75,000.
Window cleaning: Rope access fits this building, most likely $111,000.

Each fact names the source it comes from. A building file carries the source of each field, and SkyPSI shows that source beside the fact.

County and state public records: Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data.
USA Structures: Building footprints, heights and occupancy from FEMA's USA Structures.
Google Open Buildings: Building outlines and heights from Google Open Buildings, reached through the Overture Maps buildings theme.
Overture Maps building footprints: Building outlines, heights and floor counts from the Overture Maps buildings theme.
SkyPSI estimator: SkyPSI's own price model, calibrated rates and building-class rules.

Cost ranges come from the SkyPSI estimator, calibrated October 2, 2026. How a SkyEstimate is built.

Ask SkyPSI for a quote on your building.

Sources: County and state public records, USA Structures, Google Open Buildings, Overture Maps building footprints, SkyPSI estimator.

An estimate, not a quote. How a SkyEstimate is built.