XE Engineering — Structural Engineering & Permit-Ready Plans for California

XE Engineering Inc.

Consultancy & General Contracting

Precision, Compliance & Innovative Solutions

XE Engineering Inc. is a licensed engineering consultancy and General Engineering Contractor (CSLB Class A), providing integrated design and construction services to public agencies and private clients. We deliver precise, code-compliant solutions from initial engineering through project completion.

Building and civil structures designed in-house, projects managed through delivery, and fixed engineering works we build ourselves — one firm, one line of responsibility.

XE Site Planner · free to use

Check what fits on the lot
before anyone draws it

Search any California parcel, see the real boundary and the setback envelope for its jurisdiction, place a footprint, and read buildable area and coverage as you move it.

20Counties344Jurisdictions897Zones coded

FREE · NO ACCOUNT REQUIRED

EXAMPLE PARCEL · R-1 · 80′ × 120′ · SETBACKS 20/5/15
RESIDENTIAL STREET1201201301,428 SF80'-0"20'-0" FRONT5'-0" SIDEN40 FT
Parcel boundary
Setback envelope
Proposed footprint
Contours 2 ft
FEMA flood
LOT AREA 9,600 SFSETBACK ENV 5,950 SFCOVERAGE 14.9%CITY MAX 3,360 SF
1
Find the parcel

Address or APN. Real boundary geometry from county assessor GIS.

2
Read the envelope

Codified setbacks, plus contour, flood and soil layers with their source and date.

3
Export the sheet

ARCH D PDF, or DXF for AutoCAD, with datum in the title block.

120120130130RESIDENTIAL STREETPROPOSED80'-0"20'-0"5'-0"N40 FTXE ENGINEERINGInnovative Solutions - Civil, Structural, Planningwww.xe-eng.com | info@xe-eng.comSITE PLANC-1SETBACKSADETAIL A — TITLE BLOCK · SCALE 2.3:1XEXE ENGINEERINGInnovative Solutions - Civil, Structural, Planningwww.xe-eng.com | info@xe-eng.comSITE PLANC-1PROJECTSAMPLE — R-1 INFILL LOTAPNSAMPLEPREPARED BYXE EngineeringDATE2026-09-01SCALE1" = 20'DATUMNAD83 (H) / NAVD88 (V)LOT AREA9,600 sf / 0.220 ac (county)ZONINGR-1SETBACKSFRONT20'-0"SIDE5'-0"REAR15'-0"SETBACK ENV.5,950 sf (62%)CITY MAX 3,360 sf
XE Site Planner

A real site plan sheet,
in about five minutes

Search a parcel, place your building, download an ARCH D sheet with lot area, setback envelope, zoning basis and datum in the title block — every number traceable to its source.

Interactive

Parcel, setbacks, drawing tools

Free
Standard

ARCH D PDF, all data layers

$79
Engineer

PDF + DXF for AutoCAD

$149
Plan store

Pre-designed plans, ready for permit

Architectural and structural packages with instant download, stamped structural sets available, and one round of customization included.

Pre-designed detached ADU10+ PLANS

ADU Plans

from $1,499

10+ detached ADU designs, 400–1,200 sq ft. Structural set within 7 days.

Pre-designed single-family house

House Plans

from $2,499

Single-family designs with architectural and structural drawings. Set within 14 days.

Need something custom?

We design from scratch, or adapt any stock plan to your lot and jurisdiction.

Request a custom design →

Ready to Start Your Project?

Whether you're pursuing a federal RFQ, developing a commercial property, or planning a residence or ADU, we're here to provide disciplined engineering support.