JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- 
  Bootstrap docs: https://getbootstrap.com/docs
-->

<div class="container">
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>












<!-- Modal -->
<div id="newHouseModal" class="modal fade" role="dialog" data-keyboard="true">
    <div class="modal-dialog">

        <!-- Modal content-->
        <div class="modal-content">
            <div class="modal-header">

                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h4 class="modal-title">New House</h4>

            </div>
            <form id="newHouseModalForm" method='POST'>
                <div class="modal-body">
                    <?php //include_once 'houseForm.php'; ?>
                    
                    
                    
                    
<fieldset id="houseFieldset">

    <div class='row row-id'>
        <div class='col-sm-12 hidden'>    
            <div class='form-group'>
                <label for="house_id">ID</label>
                <input class="form-control" id="house_id" name="house_id" size="30" type="text" />
            </div>
        </div>
    </div>


    <div class='row'>

        <div class='form-group'>
            <div class='col-sm-3'><label for="house_isActive" class='formLabel'>Is Active</label></div>
            <div class='col-sm-9'>   
                <select type="text" class="form-control input-large" required="true" id="house_isActive" name="house_isActive" >
                    <option...

CSS

.row {
  background: #f8f9fa;
  margin-top: 20px;
}

.col {
  border: solid 1px #6c757d;
  padding: 10px;
}

JavaScript

$("#newHouseModal").modal("show");
$('#newHouseModal').on('hidden.bs.modal', function () {
    $('#newHouseModal form')[0].reset();
    });