3541 Chain Bridge Road

Project description

The subject site is parcel 57 2 02 002, located at 3541 Chain Bridge Road, containing approximately 16,616 square feet of office space in buildings constructed in the early 1970s, two courtyards, and 124 surface parking spaces. Project documents describe the existing development variously as two office buildings (project narrative) and four two-story buildings (city project directory); this analysis notes the discrepancy without resolving it.

The proposal, submitted May 11, 2026, would redevelop the 2.0881-acre site (90,959 square feet) with 37 residential dwelling units consisting of 29 townhouses and 8 two-over-two units, 2,730 square feet of retail uses on the eastern edge of the property, a building height of 4 stories / 60 feet (the zoning maximum allows 5 stories; the provided height is consistently stated as 4 stories across project documents), and 88 total parking spaces. The proposed tenure is for-sale homeownership. No affordable unit count is confirmed in the project documents; that field is extracted with low confidence. Project status is listed as unknown in the city's development directory as of July 18, 2026.

Economic effects

New demand. At the assumed occupancy rate (0.93–0.99), the 37 proposed units are estimated to yield 34.4–36.6 occupied households, computed as proposed units multiplied by the occupancy rate. Applying Rutgers CUPR bedroom-mix multipliers for multifamily units, those households translate to approximately 55–88 new residents (central estimate 71.78), computed as households multiplied by persons per multifamily unit.

Spending by category. New resident spending is estimated using each household's income — derived from the site tract mean income of $195,124 (ACS 5-year 2024, tract 51600300200) scaled by a new-construction income premium (range 1.15–1.60, central 1.35) — and BLS Consumer Expenditure Survey 2023 category benchmarks adjusted by Engel-curve elasticities. The largest spending categories are estimated at: comparison retail (apparel, furnishings) $288,098–$567,835/yr; entertainment $243,786–$496,631/yr; and restaurants and bars $225,206–$429,458/yr. Grocery spending is estimated at $238,048–$397,773/yr; personal services at $65,526–$127,035/yr; and convenience retail at $44,645–$78,389/yr.

Where spending is captured — screening estimates. The Huff model — computed per individual retail point of interest using a joint destination-and-mode-choice formulation — estimates how new residents' spending is distributed across commercial areas. These are screening estimates, not predictions; they rank likely destination clusters with sensitivity bounds. The top clusters by estimated annual capture are:

• Fairchester Drive & Hill Street: $318,773–$653,661/yr, led by grocery, restaurants and bars, and comparison retail
• Chain Bridge Road & North Street: $148,154–$325,514/yr, led by entertainment, restaurants and bars, and comparison retail
• Fair Lakes Parkway & Fair Oaks Mall: $105,374–$179,711/yr, led by comparison retail and entertainment
• Blenheim Boulevard & Fairfax Boulevard: $64,646–$123,303/yr
• Mathy Drive & Pickett Road: $52,699–$84,956/yr

Across all retail categories, the Huff model estimates that approximately 56.7%–64.3% of new resident retail spending (central 59.3%) lands at destinations inside the city boundary. For food-away-from-home specifically, the estimated in-city share is 60.6%–71.1% (central 64.2%). These are also screening estimates.

Project's own ground-floor retail. The 2,730 square feet of proposed ground-floor retail competes as a destination in the Huff model. The model estimates that the project's own retail would capture approximately $1,009–$2,591/yr of the new residents' own spending (central $1,822), broken across restaurants and bars, comparison retail, convenience retail, and personal services. This is a screening estimate.

Foot-traffic index change. The model allocates new residents' walk trips to the 10 nearest commercial street segments using exact shortest-path flows and compares them to a sampled baseline betweenness index of today's population. The resulting foot-traffic index change is estimated at 0.0% relative to that baseline. The baseline is a sampled index, not calibrated pedestrian counts. The walk-in spending figures carry a wide range ($15,853–$625,829/yr, central $102,235/yr) driven primarily by the assumed walk mode share and walk-time decay parameter. The foot-traffic index figure and the walk-arriving spending figures are screening estimates.

Jobs ledger. Existing office space of 16,616 square feet implies approximately 33–66 jobs displaced (central 47.5), computed as existing commercial square footage divided by an assumed square footage per office job (range 250–500, central 350). The proposed 2,730 square feet of retail implies approximately 3.9–6.8 on-site retail jobs added (central 5.5), computed as proposed retail square footage divided by an assumed square footage per retail job (range 400–700, central 500). No new office square footage is proposed, so office jobs added is zero. The net on-site job change is estimated at −63 to −26 jobs (central −42), reflecting the replacement of office employment with a much smaller retail component.

Fiscal effects

Current tax. The current real estate tax on the site (parcel 57 2 02 002) is $45,479/yr, computed as the current assessed value multiplied by the City's real estate tax rate.

Projected real estate tax. After redevelopment, projected assessed value is estimated at $16,937,000–$25,697,000 (central $22,497,500), computed as 37 units multiplied by an assessed value per unit ($443,000–$665,000, central $587,750, drawn from 100 condominium-class comparables in the City's assessment database built since 2011) plus 2,730 retail square feet multiplied by an assumed commercial value per square foot ($200–$400, central $275). No office square footage is proposed, so that component is zero. Projected real estate tax is estimated at $181,649–$275,600/yr (central $241,286/yr). The resulting real estate tax increment above the current site tax is estimated at $136,170–$230,121/yr (central $195,806/yr). The current site value per acre is $2,030,794/acre; the projected value per acre is estimated at $8,111,202–$12,306,403/acre (central $10,774,149/acre).

Other recurring revenue lines. Additional recurring revenues estimated here include:

• Personal property tax on resident vehicles (rough estimate): $12,790–$54,461/yr (central $29,052), computed as new households multiplied by assumed vehicles per household (1.0–1.8) multiplied by assumed average vehicle assessed value ($9,000–$20,000) multiplied by the City's personal property tax rate. This is a rough, order-of-magnitude estimate; no project-specific vehicle data exists.
• BPOL business license tax on project retail (rough estimate): $204–$1,636/yr (central $654), computed as proposed retail square footage multiplied by an assumed gross sales per square foot ($250–$600) multiplied by the BPOL retail rate, multiplied by the assumed net-new share (0.15–0.50). This is a rough estimate; tenant receipts are assumed, not observed.
• Business tangible property tax (rough estimate): $451–$1,691/yr (central $902), computed as proposed commercial square footage multiplied by assumed equipment value per square foot ($4–$15) multiplied by the City's personal property tax rate. This is a rough estimate.
• Meals tax on captured in-city dining: $6,139–$13,748/yr (central $9,144), computed by applying the City meals tax rate to the Huff-model estimate of new-resident restaurant spending landing at in-city destinations.
• Meals tax on the project's own restaurants (net-new, rough estimate): $1,378–$25,770/yr (central $7,359), computed as ground-floor square footage multiplied by assumed sales per square foot multiplied by the assumed restaurant share of retail (0.30–0.70) multiplied by the meals tax rate multiplied by the net-new share. This is a rough estimate.
• Local sales tax share on captured in-city retail: $3,239–$6,718/yr (central $4,662), computed by applying the local-option sales tax share to the Huff-model estimate of in-city captured retail spending.
• Local sales tax on the project's own retail (net-new, rough estimate): $1,021–$8,181/yr (central $3,271), computed as ground-floor square footage multiplied by assumed gross sales per square foot multiplied by the local sales tax share multiplied by the net-new share. This is a rough estimate.

Service cost — two methods. Two cost framings are presented, and both are included in the reported range precisely because neither is unambiguously correct for an infill project of this scale.

The naive per-capita method estimates annual service cost at $326,183–$580,042/yr (central $450,975). It is computed as new residents multiplied by the non-school General Fund cost per capita ($5,254, derived from FY2027 adopted budget figures: ($207,912,496 − $76,429,791) ÷ 25,026 residents) plus estimated students multiplied by the net local cost per pupil ($19,961, derived as ($76,429,791 tuition − $14,492,271 state education revenue) ÷ 3,103 students). This method allocates fixed citywide costs to new residents, which tends to overstate costs for infill development where fixed services are not expanded.

The marginal framing estimates annual service cost at $109,241–$372,198/yr (central $205,846). It is computed as the non-school per-capita cost multiplied by a marginal cost factor (0.25–0.55, central 0.35) — representing only the share of non-school services that scales at the margin — plus the same student cost component ($73,854/yr, range $36,927–$118,166). This method excludes fixed costs that would not increase with an incremental population addition, and may understate costs if the project triggers service capacity expansions.

In both framings, the school cost component is identical in structure: estimated K-12 students (1.85–5.92, central 3.7, computed as 37 units multiplied by the assumed student generation rate of 0.05–0.16 per unit) multiplied by the $19,961 net local cost per pupil.

Net fiscal impact. Combining revenue and costs across both framings, the net annual fiscal impact spans −$418,650 to +$233,086 (with a midpoint of approximately −$77,561). Under the naive per-capita method alone, the range is −$418,650 to +$16,144 (central −$200,125). Under the marginal framing alone, the range is −$210,805 to +$233,086 (central +$45,004). The two cost methods produce ranges that overlap: the high end of the naive per-capita range (+$16,144) and the low end of the marginal range (−$210,805) both fall within the combined span. The primary reason the methods diverge is that the naive per-capita approach allocates the full citywide per-resident fixed-cost base to new residents, while the marginal approach applies only the fraction of non-school services estimated to scale with incremental population. Readers should note that the revenue side includes the rough-estimate personal property tax and BPOL lines; omitting them would lower all revenue figures and shift the net range further negative, while their wide assumption-driven bounds contribute to the overall range spread.

No external fiscal estimates with published figures were available for comparison. Three external documents were identified in the record — the July 28, 2026 staff reports for agenda items 11b, 8a, and 6c — but all were dropped during extraction because they contained no quantitative fiscal figures applicable to this project.

Not evaluated in this version

The following analyses are deferred and were not computed in this version of the report: bike-lane corridor effects, trail connectivity impacts, broader multimodal connectivity analysis, environmental impacts (stormwater, tree canopy, heat island), and any comparable-places or case-study analysis of similar mixed-use infill projects in comparable jurisdictions. These items would require additional data collection and modeling beyond the scope of the current screening-level assessment.