Summary answer: New development in Manassas may support values over time, but nobody can promise it, and it brings near-term construction, new supply, and uncertain timing. The documented facts are that the city is tightening its rules for new data centers (ordinance O-2026-455 passed first reading unanimously on February 9, 2026), that the city's fiscal 2027 budget counts $995 million of added real estate value with $461 million from new construction, largely data centers, and that the large Prince William Digital Gateway rezoning was a county matter next to the city and has ended. I have not found a verified study showing what these projects do to nearby home prices, so I treat the effect as unproven.
I'm Johnny with JQ Real Estate. Here is the record, with status and sources.
What is documented
| Item | Status | Details |
|---|---|---|
| City data center ordinance O-2026-455 | Unanimous first reading, February 9, 2026; second reading not confirmed | Stricter standards for new data centers in the I-1 and I-2 districts: larger setbacks from residential, childcare, parks and open space, a pre-construction noise study, façade variation, screening of generators and HVAC, and periodic review |
| City FY2027 budget | Real estate values up $995 million, $461 million from new construction | Largely data centers, per InsideNoVa; the city rate fell to $1.24 per $100 |
| Prince William Digital Gateway | County project, not in the city; ended after a court voided the rezoning (March 31, 2026) and QTS withdrew its last appeal (July 2, 2026) | About 2,100 acres, 34 buildings, 22 million square feet, next to Manassas National Battlefield Park; no replacement land-use plan reported |
| Rezoning near Manassas Regional Airport | County Planning Commission voted 6-1 on July 29, 2025 | Part of a 22.51-acre application; Great Oaks residents about a quarter mile away raised noise concerns; Board decision status not verified |
Possible upsides for nearby owners
- Tax base. Data center and commercial growth adds value to the city's tax base, which is part of why the city could lower its rate to $1.24 even as assessments rose.
- Amenities. New retail and restaurants near Old Town and the Route 28 and Sudley Road corridors can make an area more convenient.
- Demand signals. Large projects show developers expect demand, and the market is already very competitive.
Possible downsides
- Construction. If projects proceed, nearby homes may live with years of activity, but I have not verified any schedule.
- More supply. New apartments add rental options, which can limit rent growth for investor-owned condos nearby.
- Traffic. More residents bring more cars on the corridors around Route 28 and I-66.
- Timing risk. Proposed projects can be delayed, redesigned, or not built, and a data center would be a very different neighbor from housing.
What the market says right now
Redfin's data for Manassas over the three months ending August 2026 showed a median sale price of $511,661, up 2.3% from a year earlier, with 151 homes sold in August, up 23.6% from 122. The median home spent 39 days on the market, up 3 days, and sold at 101.0% of list. 44.3% of homes sold above list, up 10.7 points, and 28.4% had price drops, down 1.8 points. Median price per square foot was $286, up 6.5%. Redfin's Compete Score was 77 out of 100, which it labels very competitive, with an average of 3 offers per home, and it estimates the average home sells about 1% above list and goes pending in about 39 days, while hot homes sell about 2% above list in about 20 days. A median that is rising modestly in a market this competitive does not prove that development helps or hurts any one neighborhood, so I compare sold prices near a specific project rather than citywide numbers.
The preservation rules downtown
Manassas has a Historic Overlay District, and the Architectural Review Board issues a Certificate of Appropriateness for construction, substantial exterior alteration, demolition, or relocation there. The board has listed items such as replacement siding or windows, fences, porches, and signs, and it has met at 5:30 p.m. on the third Tuesday of the month as needed. Confirm with Community Development at 703-257-8278. If you own in the district, expect design review on exterior work.
How to evaluate a nearby home
- Locate the home relative to the parcels that were bought or proposed for development.
- Ask the city's planning staff what the zoning allows on those parcels.
- Check whether any rezoning or site plan has been filed.
- Compare the price to similar homes farther from the growth area.
- Decide whether you can live with years of change.
How to follow what gets built
City Council agendas, the planning department's project pages, and local reporting show when a rezoning is filed, approved, and permitted. A land purchase is not the same as a building permit, and a proposal is not the same as an approval. If a project near a home you want is still at the proposal stage, treat it as a possibility and ask your agent to check the filing status before you make an offer.
An example
Suppose a buyer likes a townhome in a neighborhood near an industrial zone where data center rules are being tightened. No construction date has been verified for any specific site nearby. The buyer asks for sold prices within a half-mile and finds the closest sales have been in line with sales farther out. The buyer decides the location is fine for the commute but negotiates a lower price to account for the uncertainty. Another buyer in the same position decides a quieter alternative is worth the extra drive. Both decisions rest on facts rather than a promise of future appreciation. The scenarios are illustrations.
Next step
Reach out and I'll map the approved projects around any home you are considering and pull the sold prices that show whether proximity has paid off so far.
For more Manassas buyer and seller questions, visit our Manassas real estate hub.