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Development project

Paul VI

Under Construction

Private Development · 10675 Fairfax Boulevard, 10600 Cedar Avenue, and 10606 Cedar Avenue, Fairfax, VA 22030 · topic history · city record ↗

266 units · 20,000 sq ft retail · 4 stories · 18.51 acres

Screening estimates. These figures rank likely magnitudes with stated assumptions and ranges — they are decision-support context, not predictions. Every number traces to a source or a named assumption in the appendices below. Formulas, citations, and limitations: methodology report (PDF).

In plain terms: the project would add roughly 516 residents and about −$398k a year in new property tax, but serving those residents costs money too. Depending on how you count the cost of city services for new residents, that nets out to a net cost of between $1.5M and $3.3M a year. The strict accounting (every resident carries a full share of today's citywide costs) gives the costlier figure; counting only costs that actually grow with new residents gives the friendlier one. The likely answer sits in between.

Where the effects land

Loading map…

The economic map shows total captured spending by business location and named reporting clusters. The walk map uses a tighter extent around walk-arriving capture and the street segments assigned new resident walk trips; the bike map (when present) shows bike-arriving capture across the city — bikes reach farther, so it spreads wider and thinner. Dollar heatmaps are clipped to CR (Commercial Retail) zoning, and each map is scaled to its own data, so colors are not comparable across maps.

Summary

The Paul VI project redevelops the former Paul VI Catholic High School campus and two adjacent residential parcels — a total of 18.51 acres — into a for-sale mixed-use development of 266 residential units (144 condominiums, 115 townhomes, and 7 single-family homes) and 20,000 square feet of ground-floor retail in the City of Fairfax, Virginia; the project is currently under construction. This analysis estimates that the development will add 247–263 new households and 396–632 new residents, generating aggregate new household spending across all modeled categories. On the fiscal side, this analysis places the net annual recurring impact in a range spanning −$4,826,606 to −$150,772, depending on which cost method is used; the project is estimated to run a net cost to the city under both framings, though the magnitude differs substantially between them. The three assumptions to which these results are most sensitive are: the average household size assumed for new multifamily units (range 1.6–2.4 persons per unit), the assessed value per residential unit derived from comparable condominiums (range $443,000–$665,000 per unit), and the student generation rate per unit (range 0.05–0.16 students per unit).

View metric methods and calculations →

Adjust the assumptions

Every estimate above rests on named assumptions with published ranges. If you have better local knowledge, move the sliders — adjusted values use the exact formulas of the pipeline, bounded by each assumption's sensitivity range. Travel and destination-choice parameters are excluded (they require a full model re-run). Nothing is saved or submitted.

Assumptions

Occupancy rate
0.97
0.93published: 0.970.99

share of proposed units occupied at stabilization

Household size (multifamily)
2
1.6published: 22.4

persons per occupied new for-sale condominium unit

New-construction income premium
1.35
1.15published: 1.351.6

for-sale condominium buyers anchor to purchase price rather than rent, drawing incomes further above the area median than new rental does

Spending-survey scaling
1
0.85published: 11.15

CES line items are national averages; ±15% covers regional and vintage drift

Walk trips per resident per day
1
0.5published: 12

scales new residents into all-purpose daily walk trips for the foot-traffic flow allocation

Sq ft per office job
350
250published: 350500

existing commercial sqft -> displaced jobs; a higher value yields fewer displaced jobs per sqft

Sq ft per retail job
500
400published: 500700

proposed retail sqft -> on-site jobs

Assessed value per dwelling unit ($)
587,750
443,000published: 587,750665,000

median assessed value per unit across 100 condominium-class comps, 25th-75th percentile bounds

Retail value per sq ft ($)
275
200published: 275400

assessed $/sqft applied to proposed retail space; refine with commercial comps in a follow-up

Office value per sq ft ($)
300
200published: 300450

assessed $/sqft applied to proposed non-retail commercial space (office, medical, bank). Previously omitted, which valued every proposed office at zero

Business equipment value per sq ft ($)
8
4published: 815

rough-estimate input: the business tangible personal property base across proposed retail and office space

Share of on-site sales that is new to the city
0.3
0.15published: 0.30.5

share of the project's own on-site receipts that is NEW to the city (new resident and visitor demand, plus sales recaptured from outside) rather than displaced from existing city businesses; displaced sales move the tax base, they do not add to it

Restaurant share of ground-floor space
0.5
0.3published: 0.50.7

share of the project's ground-floor space occupied by restaurants (the meals-tax base) rather than shop retail

Students per unit
0.1
0.05published: 0.10.16

drives the school-cost component when the education transfer and enrollment are pinned (school-split cost model); otherwise informs the school note only

Marginal cost factor
0.35
0.25published: 0.350.55

share of the NON-school per-capita cost that scales at the margin (school costs follow the student estimate directly under the school-split model)

Vehicles per household
1.4
1published: 1.41.8

rough-estimate input: converts new households to taxable vehicles for the personal property levy

Assessed value per vehicle ($)
14,000
9,000published: 14,00020,000

rough-estimate input: average taxable value per vehicle; no project-specific fleet data exists

Retail sales per sq ft ($/yr)
400
250published: 400600

rough-estimate input: annual gross receipts per sqft for the BPOL base; the low bound absorbs vacancy and lease-up

Requires a full model re-run

These parameters sit inside the travel/destination-choice model, so their effect on the results is not a simple rescaling — they cannot be adjusted live.

Walk-time decay (β)0.1 (0.050.15)
Walk share — neighborhood trips0.6 (0.40.8)
Walk share — comparison goods0.1 (00.3)
Walk share — grocery/entertainment0.3 (0.10.5)
Bike-time decay (β)0.1 (0.050.15)
Bike share — neighborhood trips0.02 (0.0050.05)
Bike share — comparison goods0.005 (00.02)
Bike share — grocery/entertainment0.01 (00.03)
Own-retail sq ft per equivalent business2,000 (1,5003,000)
Office gross receipts per sq ft ($/yr)500 (300800)

Recomputed estimates

Economic

MetricPublishedAdjustedΔ
New households258258
New residentsheadline516516
Aggregate household income$52.22M$52.22M
New annual spending: grocery$2.00M$2.00M
New annual spending: restaurant_bar$1.82M$1.82M
New annual spending: retail_comparison$2.30M$2.30M
New annual spending: retail_convenience$370k$370k
New annual spending: personal_services$527k$527k
New annual spending: entertainment$1.93M$1.93M
Annual capture: Fairchester Drive & Hill Street$3.07M$3.07M
Annual capture: Chain Bridge Road & North Street$1.21M$1.21M
Annual capture: Fair Lakes Parkway & Fair Oaks Mall$853k$853k
Annual capture: Blenheim Boulevard & Fairfax Boulevard$419k$419k
Annual capture: Mathy Drive & Pickett Road$383k$383k
Annual capture: project's own ground-floor retailheadline$73k$73k
On-site jobs removed (existing space)544544
On-site retail jobs added4040
Net on-site job change−504−504
New annual spending arriving on footheadline$816k$816k
New annual spending arriving by bike$100k$100k
Spending arriving on foot at project's own retail$36k$36k
Implied spending per resident walk trip$4$4
New resident walk trips per day516516

Fiscal

MetricPublishedAdjustedΔ
Projected assessed value$161.84M$161.84M
Projected real estate tax$1.74M$1.74M
Real estate tax increaseheadline−$398k−$398k
Personal property tax on resident vehicles (rough estimate)$209k$209k
BPOL business license tax on project retail (rough estimate)$4,756$4,756
Business tangible property tax (rough estimate)$6,608$6,608
Meals tax on captured in-city dining$55k$55k
Meals tax on the project's own restaurants (net-new, rough estimate)$54k$54k
Local sales tax share on captured in-city retail$29k$29k
Local sales tax on the project's own retail (net-new, rough estimate)$24k$24k
Annual school cost within the service-cost estimates$531k$531k
Annual service cost — naive per-capita method$3.24M$3.24M
Annual service cost — marginal framing$1.48M$1.48M
Estimated K-12 students26.626.6
Net annual fiscal impact — naive per-capita methodheadline−$3.26M−$3.26M
Net annual fiscal impact — marginal framingheadline−$1.50M−$1.50M
Net annual fiscal impact (range across both cost methods)−$2.38M−$2.38M

Adjusted values are exact recomputations of the model's central estimates for the assumptions above — the same arithmetic the pipeline runs, evaluated in your browser. Published ranges, maps, and the narrative report are not recomputed here.

Full analysis

Project description

The site currently contains the Paul VI Catholic High School, a private non-profit high school occupying approximately 190,532 square feet, plus two residential parcels including the John C. Wood House, all owned by the Diocese. The three parcels have been consolidated into a single 18.51-acre site. The approved project, as stated in the August 21, 2018 Master Development Plan and associated narrative (the authoritative final submission), proposes a total of 266 residential units — comprising 144 multifamily residential condominiums in a four-story building, 115 townhomes, and 7 single-family detached homes — along with 20,000 square feet of commercial/retail space. The project documents establish that no rental units shall be developed or offered; all residential units are for-sale. The project is currently under construction. Unit counts and configurations evolved across multiple plan submissions between 2017 and 2018; the 266-unit figure reflects the approved final plan.

Economic effects

The 266 proposed units are estimated to generate 247–263 new occupied households at stabilization, applying an occupancy rate assumption of 0.93–0.99. Applying Rutgers CUPR residential demographic multipliers by bedroom mix to those households yields an estimated 396–632 new residents, with a central estimate of 516. Aggregate annual household income for the new population is estimated at $42.7 million–$63.2 million per year, computed as households multiplied by the mean income of site census tract 51600300100 (ACS B19025/B11001, $149,926) and a new-construction income premium of 1.15–1.60, reflecting that for-sale condominium buyers tend to anchor to purchase price at incomes above the area median.

New annual spending by category is estimated using households multiplied by BLS Consumer Expenditure Survey 2023 category averages, scaled by income ratio raised to a category-specific elasticity (Engel scaling). The largest spending pools are comparison retail ($1.6 million–$3.2 million per year), grocery ($1.5 million–$2.5 million per year), restaurant and bar spending ($1.3 million–$2.5 million per year), and entertainment ($1.3 million–$2.7 million per year).

The Huff model — applied as a screening estimate — allocates new resident spending across individual retail points of interest using a joint destination-and-mode choice, where each destination's attraction is weighted by its size and discounted by a per-minute travel-time decay (walk decay parameter 0.05–0.15 per minute). Clusters are a reporting rollup of individual POI results. The top clusters attracting new spending under this screening estimate are:

  • Fairchester Drive & Hill Street: $2.1 million–$4.4 million per year, led by grocery, restaurant, and comparison retail
  • Chain Bridge Road & North Street: $825,000–$1.9 million per year, with notable entertainment and restaurant components
  • Fair Lakes Parkway & Fair Oaks Mall: $616,000–$1.1 million per year, dominated by comparison retail and entertainment

The Huff model estimates that 58%–66% of all modeled retail spending from new residents lands at destinations inside the city boundary (all-retail in-city capture share), and 63%–73% of restaurant and bar spending lands inside the city (food-away in-city capture share). These are screening estimates and are not predictions.

The project's own 20,000 square feet of ground-floor retail is included as a competing destination in the Huff model. Under that screening estimate, the on-site retail is projected to attract $41,764–$100,743 per year of the new residents' spending, computed using the own-retail square footage converted to a POI-equivalent attractiveness measure (assumption: 1,500–3,000 square feet per equivalent POI) and the same joint destination-and-mode Huff choice.

New annual spending arriving at nearby businesses on foot is estimated at $143,124–$4,014,390 per year; this wide range reflects the sensitivity to the walk-mode share and walk-decay assumptions. The foot-traffic index is estimated to increase approximately 0.1% on the 10 nearest commercial street segments, computed as exact marginal trip flows from the site against a sampled baseline betweenness index of today's population. This foot-traffic figure is a screening estimate based on modeled walk trip flows, not calibrated pedestrian counts.

On the jobs ledger: the existing 190,532 square feet of school and associated commercial space implies 381–762 displaced on-site jobs, computed as existing commercial square footage divided by an assumed 250–500 square feet per office-equivalent job. The proposed 20,000 square feet of retail implies 29–50 new on-site retail jobs, computed as proposed retail square footage divided by an assumed 400–700 square feet per retail job. The net on-site job change is therefore estimated at −331 to −734 jobs, reflecting a large displacement of school-related employment with only partial replacement by retail positions. No office square footage is proposed, so no office jobs are added.

Fiscal effects

The current assessed value of the site parcels, drawn from the City of Fairfax Real Estate Assessment Database (WebPro, 2026 vintage), yields a current real estate tax of $2,133,655 per year, computed as current assessed value multiplied by the FY2027 real estate tax rate. A note in the assessment data indicates that the current parcels have been re-subdivided as part of the redevelopment and that current assessed values may reflect the built or under-construction project rather than the pre-development baseline; accordingly, the real estate tax increase metric understates the true increment relative to what the school parcel generated before construction began.

Projected assessed value is estimated at $121,838,000–$184,890,000, computed as 266 units multiplied by assessed value per unit ($443,000–$665,000, from 100 condominium comparable sales in the city's assessment database for units built since 2011) plus 20,000 square feet of retail at $200–$400 per square foot. This yields a projected real estate tax of $1,306,713–$1,982,945 per year.

The real estate tax change computed as projected minus current is estimated at −$826,943 to −$150,710 per year — that is, this analysis projects the real estate tax yield on the site to be lower after redevelopment than at the current baseline, for the reasons noted above regarding baseline valuation.

Other recurring revenue lines modeled include:

  • Personal property tax on resident vehicles (rough estimate): $91,951–$391,534 per year, 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 personal property tax rate. No project-specific vehicle data exists; treat as order-of-magnitude.
  • BPOL business license tax on project retail (rough estimate): $1,478–$11,927 per year, computed as proposed retail square footage multiplied by assumed gross sales per square foot ($250–$600) multiplied by the city BPOL retail rate, then multiplied by a net-new share (0.15–0.50) reflecting that receipts displaced from existing city businesses would not add to net BPOL collections.
  • Business tangible property tax (rough estimate): $3,304–$12,390 per year, computed as proposed commercial square footage multiplied by assumed equipment value per square foot ($4–$15) multiplied by the city personal property rate.
  • Meals tax on captured in-city dining: $36,457–$80,961 per year, computed as restaurant spending multiplied by the in-city capture share from the Huff model multiplied by the city meals tax rate.
  • Meals tax on the project's own restaurants (rough estimate): $9,977–$187,849 per year, computed as ground-floor square footage multiplied by assumed sales per square foot, multiplied by an assumed restaurant share of retail space (0.30–0.70), multiplied by the meals tax rate and the net-new share.
  • Local sales tax share on captured in-city retail: $19,813–$40,996 per year, computed as in-city captured retail spending multiplied by the local sales tax share under Virginia Code § 58.1-605.
  • Local sales tax on the project's own retail (rough estimate): $7,390–$59,635 per year, computed as ground-floor square footage multiplied by assumed sales per square foot multiplied by the local sales tax share and the net-new share.

Two service-cost methods are applied to bracket the plausible cost range.

The naive per-capita method allocates the full citywide General Fund non-school cost per resident ($5,254 per capita, derived as the FY2027 non-school General Fund appropriation of $207,912,496 minus the school tuition contract of $76,429,791, divided by 25,026 residents) to new residents, and adds school costs based on an estimated 13–43 new K-12 students multiplied by a net local cost per pupil of $19,961 (derived as the $76,429,791 tuition contract minus $14,492,271 in state education revenue, divided by 3,103 students). This method allocates fixed citywide costs proportionally and produces the upper-bound cost estimate: $2,344,989–$4,170,034 per year.

The marginal framing recognizes that fixed services do not scale with infill development. It applies a marginal cost factor of 0.25–0.55 to the non-school per-capita cost before adding school costs at the same per-pupil rate. This produces the lower-bound cost estimate: $785,353–$2,675,803 per year. The two methods differ because the naive per-capita approach treats every new resident as triggering the full citywide service cost, while the marginal approach recognizes that roads, administration, and other largely fixed services do not expand proportionally with infill residents.

Spanning both methods, the net annual fiscal impact range for this analysis is −$4,826,606 to −$150,772 per year. The project is estimated to run a net cost to the city under both framings; the difference between the framings is large, and actual outcomes will depend on how much service capacity the city must expand in response to this development.

Two applicant-submitted fiscal impact statements are on record and are reported here as published. The March 28, 2018 Fiscal Impact Statement states a net annual balance of $733,000 to $1,145,000 (quoted: "BALANCE ($300,000) $733,000 $1,145,000"). The November 16, 2017 Fiscal Impact Statement states a net annual balance of $761,000 to $1,193,000 (quoted: "BALANCE ($300,000) $761,000 $1,193,000"). Those documents also project assessed values of $180,226,000 (March 2018) and $188,638,000 (November 2017), respectively.

The ranges from this analysis and the applicant's published figures do not overlap: this analysis produces a net cost of −$4,826,606 to −$150,772 per year, while both applicant statements project a net benefit of $733,000–$1,193,000 per year. The directional disagreement is methodologically traceable. The applicant statements appear to have been prepared under a pre-development baseline in which the school parcel generated little or no taxable assessed value (consistent with a tax-exempt institutional use), whereas the current-assessment baseline used in this analysis draws from 2026 WebPro records that reflect the under-construction project at its current assessed value — a baseline that is likely elevated relative to the pre-development school parcel and that, as noted in the assessment data itself, understates the true increment. On the cost side, the applicant statements likely use a different cost-allocation methodology than either framing in this analysis; neither the applicant's revenue assumptions nor its cost methodology are fully visible in the submitted documents. The external estimates are reported as published and have not been combined with the figures in this analysis.

Not evaluated in this version

Analyses of the proposed bike-lane corridor, trail connections, broader pedestrian and vehicular connectivity, environmental and stormwater impacts, and comparable-places benchmarking are deferred and have not been computed in this version of the report.

Method notes & caveats

  • Huff capture is a screening estimate computed per business location (every retail POI is an individual destination) and aggregated to named areas for reporting; it ranks where new spending is likely to land, with sensitivity bounds — it is not a prediction.
  • The project's own retail is included as a competing destination; its capture estimates how much of the residents' spending the ground floor itself can hold on to.
  • Displaced use: Paul VI Catholic High School (private non-profit high school) plus two residential parcels (including the John C. Wood House). Any spending that originated on-site today is assumed negligible relative to the new residential demand.
  • Bike-arriving capture models cycling as a third mode alongside walking and driving: the bike preference is taken from the drive remainder (walk shares are unchanged), and bikes reach ~3-4x the walking distance per minute of travel time.
  • Foot-traffic flows are exact allocations of the new residents' modeled walk trips; the % comparison uses a sampled index of today's walkers, not calibrated pedestrian counts.
  • Walk-in capture per business is the walk-arriving share of the NEW residents' spending under a joint destination-and-mode choice: walking competes with driving per destination, so businesses beyond practical walking range receive effectively none of it and the rest of the spending arrives by car. It is not total pedestrian commerce. Comparing a business's walk-in capture to its total capture shows how much of its projected gain depends on being within walking distance of the project.
  • baseline assessed value: 232 parcel(s) from WebPro, 37 from the bulk parcel layer (57 1 39 000 A, 57 1 39 01 000 F, 57 1 39 02 000 G, 57 1 39 CG 000, 57 1 39 101, 57 1 39 102, 57 1 39 103, 57 1 39 104, 57 1 39 105, 57 1 39 111, 57 1 39 112, 57 1 39 114, 57 1 39 115, 57 1 39 117, 57 1 39 119, 57 1 39 120, 57 1 39 121, 57 1 39 122, 57 1 39 123, 57 1 39 124, 57 1 39 125, 57 1 39 126, 57 1 39 127, 57 1 39 128, 57 1 39 129, 57 1 39 130, 57 1 39 131, 57 1 39 133, 57 1 39 134, 57 1 39 135, 57 1 39 136, 57 1 39 137, 57 1 39 138, 57 1 39 03 000 H, 57 1 39 04 000 I, 57 1 39 100, 57 1 39 000 J) — the bulk layer's vintage may lag the current assessment roll
  • assessment sources disagree on 232 parcel(s): WebPro $185,390,800 vs bulk parcel layer $161,818,400 (15%); WebPro is used as the assessment database of record
  • Personal property tax is a rough estimate: the city rate is pinned, but vehicles per household and average vehicle value are assumptions, not observed data. Pinning per-household budget actuals would replace this estimate.
  • On-site commercial tax lines exclude $73,067/yr of new-resident spending at the project's own ground floor, which is already counted in full in the resident-capture lines.
  • BPOL revenue is a rough estimate: the city rate schedule is pinned, but tenant gross receipts are assumed from a sales-per-sqft range.
  • School costs use the split model: 27 students (13-43) x $19,961 net local cost per pupil ≈ $530,950/yr in both cost framings — a development generating fewer students carries proportionally lower costs instead of the school-heavy citywide average.
  • The net fiscal range spans both cost framings on purpose: the naive per-capita method overstates costs for infill (it allocates fixed citywide costs to new residents); the marginal framing understates them if service capacity expansions are triggered.
  • The revenue side includes the rough-estimate personal property and BPOL lines: leaving them at zero would understate revenue for taxes the city does levy, but both carry wide assumption-driven bounds.
  • BENCHMARK: this analysis puts the net annual fiscal impact at $-4,826,606 to $-150,772; the applicant fiscal impact analysis states $733,000 to $1,145,000. The ranges do NOT overlap — the methods disagree on the sign or scale of the result, and the reader should compare them directly. External figures are reported as published, never merged into the estimates above.
  • BENCHMARK: this analysis puts the net annual fiscal impact at $-4,826,606 to $-150,772; the applicant fiscal impact analysis states $761,000 to $1,193,000. The ranges do NOT overlap — the methods disagree on the sign or scale of the result, and the reader should compare them directly. External figures are reported as published, never merged into the estimates above.

Data sources

Computed Aug 26, 2026 · narrative by claude-sonnet-4-6 over deterministic model output (v3)