# 821 1st Ave N, St Petersburg Office in St Petersburg, Florida. It covers 18,172 square feet on the ground. Rates calibrated October 2, 2026. Review by December 31, 2026. Updated October 14, 2026. Method propdata-estimator-v6. ## This building 821 1st Ave N, St Petersburg. Office in St Petersburg, Florida. Property ID spv2wjsr4mmnkxz. ## Facts **Facts about 821 1st Ave N, St Petersburg** | Fact | Value | Source | | --- | --- | --- | | Address | 821 1st Ave N, St Petersburg, FL 33701 | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Building type | Office | [USA Structures and SkyPSI estimator](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Footprint | 18,172 square feet | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Perimeter | 607.39 feet | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Height | 104.99 feet | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Height survey year | 2018 | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Stories | 8 stories | [USA Structures](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Exterior wall area | 63,768 square feet | [SkyPSI estimator](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Parcel number | 17 31 19 48654 006 0010 | [County and state public records](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Land use | 091 Utility | [County and state public records](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Year built | 1970 | [County and state public records](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | | Building area on the parcel record | 226,159 square feet | [County and state public records](https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/#how-we-know) | ## Cost ranges Whole-building ranges from the SkyPSI estimator, calibrated October 2, 2026. Grade C: modelled from the Texas calibration. [What the grades mean](https://skypsi.com/estimates/methodology/confidence-grades/). ### Exterior soft wash **Exterior soft wash by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash (drone) | $5,500 | $10,000 | $17,000 | | Facade wash with mold or growth treatment | $8,000 | $15,000 | $25,500 | **Exterior soft wash from a boom lift and by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Facade wash, conventional access | $10,000 | $18,500 | $30,500 | ### Window cleaning **Window cleaning by drone, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows only | $2,000 | $4,000 | $7,000 | | Windows inside and out | $3,500 | $7,000 | $12,000 | **Window cleaning by rope access, whole building** | Service | Low | Most likely | High | | --- | --- | --- | --- | | Exterior windows, rope access | $13,500 | $27,000 | $47,500 | | Windows inside and out, rope access | $15,000 | $29,500 | $52,500 | ## Best method - [Exterior soft wash](https://skypsi.com/estimates/exterior-soft-wash/): Drone has the lowest cost, most likely $10,000. - [Window cleaning](https://skypsi.com/estimates/window-cleaning/): Drone has the lowest cost, most likely $4,000. ## Similar buildings nearby - [821 1st Ave N, St Petersburg](https://skypsi.com/property/fl/tampa/sp2z94kp60cakg8-821-1st-ave-n-st-petersburg/) - [913 1st Ave N, St Petersburg](https://skypsi.com/property/fl/tampa/sph1mb8sm2rqe0m-913-1st-ave-n-st-petersburg/) - [850 Central Ave, St Petersburg](https://skypsi.com/property/fl/tampa/sp8vx833d03dp1b-850-central-ave-st-petersburg/) ## How we know 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](https://comptroller.texas.gov/taxes/property-tax/): Situs addresses, parcel numbers, land use, year built and floor counts from county appraisal districts and state open data. - [USA Structures](https://disasters.geoplatform.gov/USA_Structures/): Building footprints, heights and occupancy from FEMA's USA Structures. - [SkyPSI estimator](https://skypsi.com/estimates/methodology/sources-and-licensing/): 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](https://skypsi.com/estimates/methodology/how-a-skyestimate-is-built/). [Request a Quote](https://skypsi.com/request-a-quote) --- Sources: County and state public records, USA Structures, SkyPSI estimator. Parcel and address facts from county appraisal districts and state open-data programs (public records). https://comptroller.texas.gov/taxes/property-tax/ Building footprints: USA Structures, FEMA Response Geospatial Office, Oak Ridge National Laboratory and U.S. Geological Survey (CC BY 4.0). https://disasters.geoplatform.gov/USA_Structures/ Page: https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg/ JSON: https://skypsi.com/property/fl/tampa/spv2wjsr4mmnkxz-821-1st-ave-n-st-petersburg.json Content license: https://skypsi.com/content-license.txt