Know Your Lot Before You Build: A Pre-Design Checklist

The Pre-Design Checklist at a Glance

Every one of these items is cheaper to discover before design than after permit review. Most of the information comes from documents you may already have, or can request from your county, city, title company, or HOA.

1. Setbacks and the buildable envelope
2. Easements
3. Slope and drainage
4. Soil conditions
5. Utility locations
6. Deed restrictions and HOA rules
7. Flood zones
8. Trees and protected features

Helpful documents to gather before you start:

• Recorded plat
• Boundary survey
• Title commitment
• Deed and covenants
• HOA design guidelines
• FEMA flood map panel
• Utility service maps
• Soil or geotechnical report

1. Setbacks and the Buildable Envelope

Setbacks are the required distances between your structure and the property lines: front, sides, and rear. Layer on any height limits, lot coverage caps, or impervious surface limits, and what remains is your buildable envelope, the actual area where the house can legally sit. All of these rules vary by jurisdiction, and sometimes by subdivision within the same city.

How it shapes the plan: the envelope dictates the footprint. A narrow infill lot with tight side setbacks pushes the design toward a long, two-story plan with an alley-loaded or tucked-under garage. A generous rural parcel opens up sprawling single-story layouts, side-entry garages, and detached structures. We establish the envelope first so every square foot of the plan is drawn inside it.

2. Easements

Easements give someone else a legal right to use part of your land: utility easements for power and communication lines, drainage easements that carry stormwater, and access easements that let a neighbor cross your parcel. They typically appear on the recorded plat and in the title commitment, and in most cases you cannot place permanent structures over them.

How it shapes the plan: an easement can quietly erase a strip of otherwise buildable land. A rear drainage easement may rule out the covered patio you pictured. A utility easement along a side line can force the whole footprint to shift, which then changes window placement, garage orientation, and the driveway. Finding these on paper costs nothing; finding them during permit review costs a redesign.

3. Slope and Drainage

Grade is one of the most underestimated cost drivers in residential construction. A lot that looks gently rolling on a walk-through can require significant cut and fill, retaining walls, or a stepped foundation once you see the actual contours. Water matters just as much: the finished design has to move stormwater away from the structure, and many jurisdictions review grading and drainage as part of the permit.

4. Soil Conditions

What sits under the slab matters as much as what sits on it. Expansive clays that swell and shrink with moisture, loose sandy soils, high water tables, and shallow rock each call for different foundation strategies. A geotechnical (soil) report tells the engineer what the ground can carry and how the foundation should respond, and some jurisdictions or lenders expect one before construction.

How it shapes the plan: soil findings feed directly into the structural design of the foundation, and they can influence the architecture too. Difficult soils sometimes favor a smaller, simpler footprint over a sprawling one, because foundation complexity scales with the shape of the slab. Knowing this early lets the plan and the budget agree with each other.

5. Utility Locations

Confirm where water, sewer, power, gas, and communications actually reach your lot, not where you assume they do. If municipal sewer is not available, a septic system needs approval and physical space for a drain field, which can remove a large area from your buildable envelope. Connection points, meter locations, and sewer depth all vary by site.

How it shapes the plan: the sewer tie-in influences where bathrooms, the kitchen, and the laundry cluster, since long plumbing runs add cost. Septic placement can dictate which side of the lot the house occupies. Even the electrical service location nudges the garage and panel placement. We would rather route the plan around real utilities than redraw it around surprises.

6. Deed Restrictions and HOA Rules

Public zoning is only half of the rulebook. Private deed restrictions and HOA covenants can impose minimum home sizes, exterior material requirements, garage orientation rules, height limits, and architectural review approval, and they apply on top of whatever the city requires.

Houston is the clearest example of why this check comes early. Houston has no zoning code. The city ordinance sets a 900 square foot cap, 5 foot setbacks, and 1 parking space, but private deed restrictions can override everything, so deed verification is step one there. In a deed-restriction-driven system, the document recorded against your specific lot can matter more than anything published by the city.

How it shapes the plan: covenants can set the floor for square footage, veto exterior finishes, and require a review board sign-off before the city will even look at your drawings. When we draft custom house plans, we ask for the covenants and design guidelines up front so the submitted design passes both the private and public reviews the first time.

7. Flood Zones

Check the FEMA flood map panel for your parcel before design begins. If any part of the lot falls in a mapped flood zone, your jurisdiction's floodplain rules may require an elevated finished floor, specific foundation types, or additional documentation, and flood insurance considerations often follow. Requirements vary by jurisdiction and by zone, so confirm the details with your local floodplain administrator.

How it shapes the plan: elevation requirements change the entire section of the house: stairs at every entry, foundation height, porch design, and how the home meets the street. Designing to the required elevation from day one is straightforward. Retrofitting it into a finished plan is not.

8. Trees and Protected Features

Some cities protect mature or heritage trees with ordinances that restrict removal and construction near the root zone, and some lots carry wetlands, waterways, steep-slope overlays, or other environmental constraints. These protections vary widely by jurisdiction, so verify what applies before you assume a clear building area.

How it shapes the plan: a protected tree can shift a footprint, reroute a driveway, or become the anchor of the design, framed by a courtyard or a wall of windows instead of removed. Environmental buffers work the same way: known early, they guide the layout; discovered late, they shrink it.

Pulling It All Together

Each item on this checklist becomes a line, a note, or a dimension on your site plan, which is the drawing that proves to the permit office that the design respects the lot. If you want to see how those pieces fit on paper, our guide to site plan basics walks through what a site plan shows and why reviewers care about it.

The payoff for doing this homework is real: fewer redesigns, fewer permit corrections, and a house that fits its site instead of fighting it. When the constraints are known up front, the creative work of design gets easier, because every decision is made once, on purpose, inside the envelope the lot actually allows.

Frequently Asked Questions