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*The Angi rating for Land Surveying companies in Sullivan, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Land Surveying needs.

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Last update on December 05, 2025

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Land Surveying questions, answered by experts

You should always calculate real estate development costs on a case-by-case basis, so there’s no specific formula to estimate your total. You should speak with a local construction manager to see what you’ll need to do in terms of clearing and leveling the land, connecting utilities, and pulling permits for construction. A professional will be able to get you an accurate estimate for land development.

Yes, new home construction will always require building permits, no matter where you live. In most cases, you’ll need a general construction permit, along with plumbing and electrical permits for the utility lines in your home. Depending on where you live, you’ll likely find that you also need permits for things like connection to a sewage system or installing exterior components, like decks, driveways, patios, and curb cutouts. Leave navigating the permits required for new home construction to a professional to ensure your home is built legally and safely.

Yes, they assess topography and potential risks related to flooding.

Land surveys don’t technically expire. They do serve as a point of reference and a snapshot of your property, though, so as soon as you make changes to your property (and even if your neighbor makes certain changes to theirs), your existing land survey becomes inaccurate, and a new one must be done. Even if you don’t make any changes to your property, many states only guarantee the accuracy of a land survey for five to ten years.

The small lines on the tape measure either indicate inches, fractions of an inch, or centimeters and millimeters. On the imperial unit side (aka the inches side), the longest lines indicate inches, followed by the next shortest lines that indicate a half-inch, and then the quarter, eighth, and sixteenth-inch. On the metric side, the lines break down meters, centimeters, and millimeters.

The Sullivan, NH homeowners’ guide to land surveying services

From average costs to expert advice, get all the answers you need to get your job done.

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