ALTA Surveys for Mixed-Use Redevelopment Sites

A mixed-use redevelopment never starts on a blank page. The site already holds old buildings, pavement, utility lines and recorded rights that someone created years or decades ago. An ALTA survey records that site as it stands today, so the design team can plan around measured facts instead of old drawings.

Baltimore shows why this step comes first. Harbor Point and Baltimore Peninsula turned former industrial land into new waterfront neighborhoods. The planned Harbor place redevelopment at the Inner Harbor would replace aging shopping pavilions with new mixed-use buildings. Each of these sites carried a history the new plan had to work around, and a single city block carries the same kind of history on a smaller scale.

Establish the Existing Site Before the Redevelopment Plan Changes It

An ALTA/NSPS Land Title Survey shows where a property’s boundaries fall and what sits on the land right now. The American Land Title Association and the National Society of Professional Surveyors set the standards together, and the latest version took effect in February 2026. The surveyor researches the records and measures the site. The drawing then shows buildings, pavement, access points and other visible improvements in relation to the lines.

The survey also plots recorded matters from the title commitment when the surveyor can locate them on the ground. A title commitment is the title company’s list of what it found in the public records, such as easements and restrictions. With both on one drawing, a developer can compare what the records say with what the site actually holds.

Timing matters on a redevelopment site. Once demolition begins, crews tear out old curbs, fences and foundations. Sometimes they also remove the monuments that mark property corners. A survey done before that work keeps a record of the site as it was, which helps if someone questions a line or a structure later.

An older survey from a past sale may fall short. Owners add parking, expand buildings and move utilities over the years. Ask the surveyor whether an existing survey can serve as a starting point or whether the project needs new field work.

Reconcile Old Site Features With the Proposed Mixed-Use Layout

The simplest way to find conflicts early is to lay the proposed plan over the ALTA survey. The overlay shows where new buildings and garage ramps would sit next to what’s already there. Designers can then spot trouble while the plan is still easy to change.

Older sites often hold features that no recent plan shows. Common examples include:

• Building walls or foundations close to a property line
• Old driveways and curb cuts along the street
• Loading docks and ramps
• Retaining walls and exterior steps
• Utility structures such as manholes, vaults and poles

Mixed-use projects add another layer. One building might need a retail storefront, a residential lobby, a loading area and a garage entrance, often on different sides. Every one of those pieces has to fit the actual ground and the actual street edge.

The survey doesn’t design any of this. It gives the architect and engineer a true picture to design against. They decide which old features to keep and which to remove.

Flag Property Constraints Before They Reach the Design Team

An ALTA survey can show easements, rights-of-way and possible encroachments, so designers see the limits before they draw buildings. A right-of-way is land the public uses for a street, sidewalk or similar purpose. An encroachment is something like a wall or a step that crosses from one property onto another.

Send the surveyor the title commitment early. Without it, the surveyor can’t plot recorded easements, and the drawing may leave out a limit that matters. A utility easement across the middle of a block, for example, can rule out a spot the architect wanted for a tower foundation.

Street changes need extra care. Plans for Harbor place have called for combining two parcels with the roadbed of the curving street between them. When a project takes in a street or alley, the survey can show the old street lines and what now sits within them. The title company, the city and an attorney decide the legal status of that land.

If the client gives the surveyor a zoning report, the survey can also list zoning items and show setback lines from that report. This helps the team see how much room the lot really offers. Zoning rules vary by site and district, so confirm them with the city.

Coordinate ALTA and Topographic Data Before Detailed Design

An ALTA survey and a topographic survey should share the same control points, coordinate system and vertical datum. A vertical datum is the baseline surveyors use to measure elevations. When both surveys start from the same base, the boundary drawing and the ground model line up without guesswork.

The two surveys answer different questions. The ALTA covers lines, improvements and recorded matters. A topographic survey maps the shape of the ground with spot elevations and contours, which are lines that connect points of equal height. It also picks up drainage features such as curbs and inlets.

An ALTA scope can add some elevation data through Table A, a list of optional items the client can request. That data may help, but detailed design usually needs more elevation points than a title survey carries. Talk with the surveyor about which survey will handle the elevation work so nothing gets measured twice or missed.

Trouble starts when the two surveys come from different sources or different years. A building corner can shift between drawings, or a planned floor level may not match the grades around it. On waterfront land, elevations also feed flood reviews, so ask which datum each survey used and when each crew went into the field.

BuildBaltimore Redevelopment Decisions From Verified Existing Conditions

Order the ALTA survey early, before the concept plan settles. It’s easier to scope the survey right at the start than to rework a design built on the wrong base. Early data also gives the lender and title company something solid to review.

Baltimore’s waterfront shows how much history a site can carry. Harbor Point grew out of a former chrome processing plant. Baltimore Peninsula sits on roughly 235 acres of old industrial port land in South Baltimore. Sites with that kind of past can hold old foundations and utilities from earlier uses that no current plan shows.

Large projects also shift over time. The Harbor place schedule has moved as the developer finalizes plans, and phased work on a big site can stretch across years. If the site or the plan changes, ask whether the survey needs an update before the next decision.

Survey requirements depend on the deal. A lender, a title company and a city agency may each ask for different survey items or a certain survey date. Confirm those needs with every party before the surveyor starts field work.