Market Updates

How do new construction developments affect existing home values?

By Bob Millaway July 26, 2026

Short Answer

New construction developments can have both positive and negative effects on existing home values. Well-planned new developments can increase area values by improving the neighborhood's appeal, adding amenities, and attracting more buyers. However, an oversupply of new homes in one area can put downward pressure on existing home prices, especially if the new homes are priced significantly lower than nearby existing homes.

The impact of new construction on existing home values depends on several factors. New developments that include amenities like parks, walking trails, and community centers can enhance the desirability of the entire area, benefiting nearby existing homes. New construction also attracts buyers to the area, increasing overall demand. However, if a large new development offers homes at substantially lower prices than existing homes, it can create downward pressure on values. Buyers may choose the new home over the existing one, forcing existing home sellers to lower their prices. The quality of the new construction also matters. High-quality new developments with premium finishes can actually increase the value of existing homes in the area by raising the overall neighborhood standard. In South Jersey, most new construction has been well-received and has helped meet demand without flooding the market. The key is the pace of new construction relative to demand. In a supply-constrained market like South Jersey, new construction generally has a neutral to positive effect on existing home values.

Bob Millaway

Bob's Advice

Redfin Senior Agent · AI Certified Agent

New construction is generally good for the market overall, but the impact on your specific home depends on the location and quality of the development. I have seen new developments enhance entire neighborhoods in Mount Laurel and Lumberton. If you are concerned about how new construction might affect your home's value, let me take a look at the specific development and give you my honest assessment.

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