Clearing & mass grading
Clearing, stripping, and cut/fill volumes computed from existing and proposed surfaces, with topsoil respread and lot grading separated.
Land Development EstimatingSite estimates
Site estimates
that hold up from raw land to final lot.
Your Buildbid agent reads the civil plans, profiles, and specs, then returns grading, utilities, paving, and stormwater — priced at your rates, in minutes.
Quantities from the civil setUtilities by size and depthPaving and curb by section
What the agent takes off. Every phase of the site.
Quantities come off your civil plans and profiles. Costs come from your book. Nothing is filled in from a per-lot average.
Water & sanitary sewer
Main, service, and manhole quantities by size, material, and depth band from the plan and profile sheets — with fittings and valves counted.
Storm drainage & ponds
Pipe, structures, headwalls, and detention ponds measured from the drainage plan, with outlet control and pond excavation priced separately.
Streets & paving
Subgrade, base, asphalt or concrete paving, and curb and gutter quantified by typical section and station.
Dry utilities & lighting
Joint trench, conduit, street lights, and transformer pads scoped so the dry utility coordination shows up in the number.
Erosion control & SWPPP
Silt fence, inlet protection, construction entrances, and stabilization measured by phase, with inspection and maintenance carried.
Sidewalks, landscaping & amenities
Sidewalks, ramps, landscaping, entry features, and amenity areas itemized, so the final lots and common areas are fully priced.
Phasing & production
Work broken into phases with equipment and crew production rates you set, so a multi-year buildout is priced as it will be built.
What you get back
Quantity takeoff
Every pipe, structure, and section with units, stations, and the sheet it came from.
Earthwork balance
Cut, fill, and import/export by phase, so the dirt is moved once.
Equipment and crew hours
Production by activity and phase, so the schedule and the number agree.
Your rates, your markup
Material, equipment, and sub rates you set — applied the same way on every bid.
And the summary: a bid you can defend line by line, out the door before the addendum deadline.
Where land development bids leak money.
Four assumptions that decide whether a site bid makes margin. Your agent makes each one explicit, priced, and visible before you submit.
Utility depth
Deep sewer runs priced at an average depth mean more trench, more shoring, and more backfill than the bid carried.
Earthwork balance
A site that balances on paper but not by phase turns into import and export you didn't price.
Agency requirements
Inspections, testing, and utility tie-in fees from the city or district show up after the award.
Phasing and remobilization
Every time the crew leaves and comes back costs money. Phased work has to be priced as phased work.
How it works
1
We build your agent
Tell us how you price site work — your crews, equipment rates, production, material sources, and markups. We train a custom AI agent on your way of bidding.
2
Drop in your plans
Upload the civil plans, profiles, geotech report, and specs. Your agent reads them and builds a detailed site takeoff.
3
Get the estimate fast
Review quantities, the earthwork balance, and a complete line-item estimate in a fraction of the usual time — then tweak, approve, and send the bid.
How to estimate land development bids
Site and land development estimates cover grading, utilities, paving, and stormwater across a large area. Here is the step-by-step process for bidding site work.
- 01
Start with clearing and earthwork
Price clearing, stripping, and mass grading from the civil grading plan, including cut and fill balance and haul.
- 02
Take off wet utilities
Measure sanitary sewer, storm, and water lines by size and depth, and count manholes, inlets, hydrants, and valves.
- 03
Take off dry utilities
Coordinate electric, gas, and telecom conduit and trenching with the utility companies — and confirm which parts are in your scope.
- 04
Price stormwater management
Measure detention ponds, underground systems, outlet structures, and erosion control for the length of the project.
- 05
Take off paving, curb, and sidewalk
Measure base, asphalt or concrete paving, curb and gutter, and sidewalks by area and length, plus striping and signage.
- 06
Account for phasing and permits
Large developments are built in phases. Price remobilization, testing, bonds, and permit fees for each phase you're bidding.
How much does land development cost per lot?
It varies widely by region, density, and utilities. A reliable per-lot number comes from a full site takeoff divided across lots — not a regional average.
What is often missed on land development bids?
Off-site utility extensions, rock in utility trenches, and erosion control maintenance over a long schedule.
Buildbid.ai builds a custom AI agent that does these steps on your plans, at your rates, so every land development bid goes out faster and more consistent.
Read the full land development estimating guide →Ready to put an AI agent
on your site development estimates?
Send us a set of civil plans and how you price site work today. We'll show you the takeoff and the number a custom Buildbid agent comes back with.