20 Massachusetts Avenue Northwest, Washington
Operated by Sonesta
technical data · neighborhood and transit
Quick answers
- Does 20 Massachusetts Avenue Northwest have open permits or code violations?
- DC Department of Buildings lists 20 permits, 18 not closed, and 0 violations.
- What is the 2026 conforming loan limit in District of Columbia?
- $1,249,125 for a single-unit home, per FHFA. Larger loans are jumbo loans.
- Is radon a problem here?
- EPA radon zone 2, moderate potential.
- What natural disasters is 20 Massachusetts Avenue Northwest at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated hurricane and inland flooding risk.
Permits and code violations
18 permits not closed out. Unfinished permits pass to the next owner.
- Supplemental Jul 2025Completed
- Construction Jul 2025Completed
Install smoke detectors at top of existing elevator hoistway(s). interlock with existing fire alarm system.
- Construction Apr 2025Permit issued
Mobilize direct-push drill rig and advance a total of four soil borings.
- Supplemental Jul 2024Expired
- Supplemental Dec 2023Permit issued
- Supplemental Dec 2023Permit issued
- Construction Dec 2023Permit issued
Hotel temporary hvac addition for west atrium. temporary hvac equipment and associated ductwork and piping are provided for additional conditioned air, outdoor air ventilation when the space is used for events with maximum allowable occupant count of 162, a-3 assembly (accessory) as designated and permitted under c&s building permit. the work will be 400 sf within the redeveloped building's total area 522,680 sf. equipment and associated work will be removed from the property once permanent hvac work for west atrium is installed. the work will consist of the addition of temporary hvac equipment in the loading dock; and the associated mep connections for the equipment.
- Construction Sep 2023Expired
Install 3 illuminated canopy signs and 1 non-illuminated window sign
- Construction Sep 2023Expired
Install 1 illuminated wall sign
- Construction Sep 2023Expired
Install 1 illuminated wall sign
- Construction Feb 2023Expired
As designed and permitted the above referenced project contains three primary building shafts that comply with section 713 shaft enclosures, and these shafts are separated from each floor in a manner that complies with section 707 fire barriers. [please refer to a106, attached. additionally, the project is a high-rise with three primary egress stairs that receive stair pressurization that is delivered from ducts that come from roof top equipment during a fire event. ibc 909.20.6.1 ventilation systems states the requirements for stair pressurization ducts to be separate and independent from other building ventilation systems, and with ductwork enclosed by not less than 2-hour fire barriers constructed in accordance with section 707. [please refer to m105 for these locations.] to comply with the intent of the code and separate these ducts from other systems routed within the same shaft, we propose the use of the attached 3m fire barrier duct wrap assembly, or equivalent ul-tested system from a different manufacturer, to achieve a 2-hour fire barrier. attached for this assembly is the ul-listed test and the evaluation report from icc. under section 2.0 of the evaluation report, this system is stated to be an alternative to the one- and two-hour fire-resistance-rated enclosure requirements of 2015 ibc section 713.4 when installed in accordance with section 4.0.
- Construction Jan 2023Expired
An after hours permit is respectfully requested from 4am saturday thru 9pm sunday
DC Department of Buildings
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: hurricane, inland flooding, heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
2.0 mi
Washington Navy Yard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
17 within 1,650 ft
Nearest: D. C. Government, 54 G St Nw Massachusetts & G St Nw (250 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
2,100 ft
U S Dhs Immigration Customs Enforcement Ice Nfttu and 2 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Radon potential
Moderate
Average indoor levels of 2 to 4 pCi/L. EPA still suggests testing ground-floor and basement units.
EPA and USGS Geologic Radon Potential Map
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
2,250 ft
Capitol Hill Montessori School at Logan (2,250 ft), Walker-Jones Education Campus (2,550 ft), Stuart-Hobson MS (Capitol Hill Cluster) (3,050 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
3.5 mi
Reagan National (DCA). Homes this close can sit inside the 65 dB DNL noise contour. Visit at peak hours and check the airport's noise map.
FAA large-hub airports
Conforming loan limit 2026
$1,249,125
District of Columbia. Mortgages up to this amount qualify for Fannie Mae and Freddie Mac pricing. Above it, the loan is a jumbo with stricter terms.
FHFA Conforming Loan Limit Values, one-unit
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More on Massachusetts Avenue Northwest
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What's worth checking in person before deciding.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- Ask specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Ask for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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