Arlington Board approves 531‑unit Pentagon Motel site plan after contentious debate; neighbors seek more protections

The Arlington County Board on April 9 approved a package of land‑use changes and a site plan amendment for a redevelopment commonly referred to as the “Pentagon Motel” site at 2480 South Glebe Road. The approvals include a General Land Use Plan amendment changing the parcel’s land‑use designation from service industry to medium residential, a Master Transportation Plan map amendment adding new local street segments, and a site plan amendment that would allow up to 531 residential units with related modifications.

Board action and vote: The board’s motions to adopt the GLUP change, the transportation map amendment and the site plan amendment were moved and seconded on the floor; the final site plan motion passed with four votes in favor and one abstention (4–0–1).

What the decision authorizes: If built as proposed, the site would be redeveloped from two aging motel properties and a surface parking lot into a large multifamily development with publicly accessible open space, a new internal street network and pedestrian improvements. The site plan package includes a public‑easement requirement for a new open space and a condition to pursue future local street links if neighboring property redevelops.

Points of dispute: Neighbors and community groups raised several concerns during public comment and at the board dais before the vote: - Traffic and safety: Residents and speakers representing the Green Valley neighborhood said the Glebe/20th‑4th corridor already has high collision rates and failing intersections, and that adding hundreds of new daily trips would worsen congestion and safety. Several speakers urged a delay for a broader corridor study with VDOT involvement. - Cemetery and church protection: Lomax AME Zion Church and members of its congregation urged additional protections for the adjacent historic cemetery, and asked the developer to fund a daycare or other direct neighborhood benefits tied to the congregation’s needs. The applicant agreed to added conditions including construction‑timing limits on Sundays, additional site screening and a recorded perpetual public‑access easement for the new open space. - Affordable housing and community benefits: Opponents pressed for more on‑site affordable units and stronger, demonstrable benefits directly targeted to Green Valley residents. Under current state and county rules, the applicant may choose an on‑site affordable unit option or a monetary contribution; the applicant has proposed a contribution alternative and committed to nine on‑site affordable units in the site plan conditions (the staff report and site plan text provide the formulae and options required by county code).

Applicant outreach and commitments: The developer presented an outreach timeline showing multiple meetings with the church, the Green Valley Civic Association and the county since late 2023 and additional commitments made after the last public hearing. The applicant agreed to a 10‑year platinum sponsorship of Green Valley Day at the $2,500 level, to provide public art focused on local history, to construct the on‑site public open space and to meet quarterly with the neighborhood association after build‑out. The developer also committed to operational requirements to limit Sunday construction activity near the cemetery and to clean any dust or debris damaging the cemetery during construction.

Board direction: After the vote several board members announced immediate follow‑ups. The board also adopted a separate directive asking the county manager to bring forward a preliminary plan by May to pursue multiple corridor and safety actions for the Green Valley area, including a targeted Vision Zero analysis for the 20th/4th & Glebe intersection, outreach to adjoining property owners to explore access and easement options to Sherlington Road, feasibility work on realignment options and a review of nearby paper streets and bus service enhancement opportunities.

Why this matters: The approval converts an underused motel and parking site into a large residential project in a historically Black neighborhood, raising competing goals: increase housing supply and revenue versus neighborhood traffic, preservation and displacement concerns. The board’s actions also highlight the limitations of county authority under current state law for prescribing on‑site affordable housing levels on privately developed parcels.

Ending: The developer must still obtain required permits, including VDOT approvals for any work affecting state right‑of‑way; the board’s approvals set conditions and monitoring obligations that county staff, the applicant and community organizations must now implement.