Looking for an addition contractor in Weldon Spring Heights, MO? Describe your project once and up to three addition contractors who work in Weldon Spring Heights and St. Charles County get back to you with a quote. It's free and there is no obligation.
Weldon Spring Heights is home to about 92 people (2024 Census Bureau estimate), a shrinking community (−2.1% since 2020). With 957 people per sq mi, it is a semi-rural area. Growing families here often add space instead of moving.
Weldon Spring Heights at a glance
- Population (Census Bureau estimate, 2024)
- 92 (−2.1% since 2020)
- Rank in Missouri
- 809th of 938 cities and towns
- Land area
- 0.1 sq mi
- Population density
- 957 people per sq mi (semi-rural)
- Type
- Town (Weldon Spring Heights town)
- Main county
- St. Charles County
What to check before hiring in Weldon Spring Heights
- Zoning: check Weldon Spring Heights's setbacks, lot coverage and height limits first.
- License and permit: in Missouri, additions are built by licensed contractors under a permit.
- Structure: second stories need an engineer to check the existing house.
- Price drivers: size, foundation, roof tie-in, plumbing and finishes.
Useful official resources
-
ICC: International Code Council
Official information and guidance.
-
NAHB
Official information and guidance.
Services available in Weldon Spring Heights
-
Room addition
Ground-floor addition with foundation, framing, roof and finishes.
-
Second-story addition
New floor over the existing house, with structural engineering.
Frequently asked questions in Weldon Spring Heights
How much does an addition cost in Weldon Spring Heights, MO?
It depends on size, foundation and finishes. Describe your project: contractors who serve Weldon Spring Heights reply with a quote.
How long does it take?
Often a few months, plus design and permits.
Does an addition raise property taxes?
Usually, since it increases the assessed value.
Which addition contractors will contact me?
Up to three independent addition contractors who serve Weldon Spring Heights and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.