diff --git a/helpers/functions.sqlFilters.d.ts b/helpers/functions.sqlFilters.d.ts
new file mode 100644
index 00000000..e65e0c3a
--- /dev/null
+++ b/helpers/functions.sqlFilters.d.ts
@@ -0,0 +1,15 @@
+declare type LotNameSearchType = "startsWith" | "endsWith" | "";
+export declare const getLotNameWhereClause: (lotName: string, lotNameSearchType: LotNameSearchType, lotsTableAlias?: string) => {
+    sqlWhereClause: string;
+    sqlParameters: any[];
+};
+declare type OccupancyTime = "" | "current" | "past" | "future";
+export declare const getOccupancyTimeWhereClause: (occupancyTime: OccupancyTime, lotOccupanciesTableAlias?: string) => {
+    sqlWhereClause: string;
+    sqlParameters: any[];
+};
+export declare const getOccupantNameWhereClause: (occupantName: string, tableAlias?: string) => {
+    sqlWhereClause: string;
+    sqlParameters: any[];
+};
+export {};
diff --git a/helpers/functions.sqlFilters.js b/helpers/functions.sqlFilters.js
new file mode 100644
index 00000000..68cccf46
--- /dev/null
+++ b/helpers/functions.sqlFilters.js
@@ -0,0 +1,83 @@
+import { dateToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
+export const getLotNameWhereClause = (lotName, lotNameSearchType, lotsTableAlias = "l") => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+    if (lotName) {
+        switch (lotNameSearchType) {
+            case "startsWith": {
+                sqlWhereClause += " and " + lotsTableAlias + ".lotName like ? || '%'";
+                sqlParameters.push(lotName);
+                break;
+            }
+            case "endsWith": {
+                sqlWhereClause += " and " + lotsTableAlias + ".lotName like '%' || ?";
+                sqlParameters.push(lotName);
+                break;
+            }
+            default: {
+                const lotNamePieces = lotName.toLowerCase().split(" ");
+                for (const lotNamePiece of lotNamePieces) {
+                    sqlWhereClause += " and instr(lower(" + lotsTableAlias + ".lotName), ?)";
+                    sqlParameters.push(lotNamePiece);
+                }
+            }
+        }
+    }
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
+export const getOccupancyTimeWhereClause = (occupancyTime, lotOccupanciesTableAlias = "o") => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+    if (occupancyTime) {
+        const currentDateString = dateToInteger(new Date());
+        switch (occupancyTime) {
+            case "current": {
+                sqlWhereClause +=
+                    " and " +
+                        lotOccupanciesTableAlias +
+                        ".occupancyStartDate <= ? and (" +
+                        lotOccupanciesTableAlias +
+                        ".occupancyEndDate is null or " +
+                        lotOccupanciesTableAlias +
+                        ".occupancyEndDate >= ?)";
+                sqlParameters.push(currentDateString, currentDateString);
+                break;
+            }
+            case "past": {
+                sqlWhereClause += " and " + lotOccupanciesTableAlias + ".occupancyEndDate < ?";
+                sqlParameters.push(currentDateString);
+                break;
+            }
+            case "future": {
+                sqlWhereClause += " and " + lotOccupanciesTableAlias + ".occupancyStartDate > ?";
+                sqlParameters.push(currentDateString);
+                break;
+            }
+        }
+    }
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
+export const getOccupantNameWhereClause = (occupantName, tableAlias = "o") => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+    if (occupantName) {
+        const occupantNamePieces = occupantName.toLowerCase().split(" ");
+        for (const occupantNamePiece of occupantNamePieces) {
+            sqlWhereClause +=
+                " and " +
+                    tableAlias +
+                    ".lotOccupancyId in (select lotOccupancyId from LotOccupancyOccupants where recordDelete_timeMillis is null and instr(lower(occupantName), ?))";
+            sqlParameters.push(occupantNamePiece);
+        }
+    }
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
diff --git a/helpers/functions.sqlFilters.ts b/helpers/functions.sqlFilters.ts
new file mode 100644
index 00000000..902e90ae
--- /dev/null
+++ b/helpers/functions.sqlFilters.ts
@@ -0,0 +1,106 @@
+import { dateToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
+
+type LotNameSearchType = "startsWith" | "endsWith" | "";
+
+export const getLotNameWhereClause = (
+    lotName: string,
+    lotNameSearchType: LotNameSearchType,
+    lotsTableAlias = "l"
+) => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+
+    if (lotName) {
+        switch (lotNameSearchType) {
+            case "startsWith": {
+                sqlWhereClause += " and " + lotsTableAlias + ".lotName like ? || '%'";
+                sqlParameters.push(lotName);
+                break;
+            }
+            case "endsWith": {
+                sqlWhereClause += " and " + lotsTableAlias + ".lotName like '%' || ?";
+                sqlParameters.push(lotName);
+                break;
+            }
+            default: {
+                const lotNamePieces = lotName.toLowerCase().split(" ");
+                for (const lotNamePiece of lotNamePieces) {
+                    sqlWhereClause += " and instr(lower(" + lotsTableAlias + ".lotName), ?)";
+                    sqlParameters.push(lotNamePiece);
+                }
+            }
+        }
+    }
+
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
+
+type OccupancyTime = "" | "current" | "past" | "future";
+
+export const getOccupancyTimeWhereClause = (
+    occupancyTime: OccupancyTime,
+    lotOccupanciesTableAlias = "o"
+) => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+
+    if (occupancyTime) {
+        const currentDateString = dateToInteger(new Date());
+
+        switch (occupancyTime) {
+            case "current": {
+                sqlWhereClause +=
+                    " and " +
+                    lotOccupanciesTableAlias +
+                    ".occupancyStartDate <= ? and (" +
+                    lotOccupanciesTableAlias +
+                    ".occupancyEndDate is null or " +
+                    lotOccupanciesTableAlias +
+                    ".occupancyEndDate >= ?)";
+                sqlParameters.push(currentDateString, currentDateString);
+                break;
+            }
+
+            case "past": {
+                sqlWhereClause += " and " + lotOccupanciesTableAlias + ".occupancyEndDate < ?";
+                sqlParameters.push(currentDateString);
+                break;
+            }
+
+            case "future": {
+                sqlWhereClause += " and " + lotOccupanciesTableAlias + ".occupancyStartDate > ?";
+                sqlParameters.push(currentDateString);
+                break;
+            }
+        }
+    }
+
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
+
+export const getOccupantNameWhereClause = (occupantName: string, tableAlias = "o") => {
+    let sqlWhereClause = "";
+    const sqlParameters = [];
+
+    if (occupantName) {
+        const occupantNamePieces = occupantName.toLowerCase().split(" ");
+        for (const occupantNamePiece of occupantNamePieces) {
+            sqlWhereClause +=
+                " and " +
+                tableAlias +
+                ".lotOccupancyId in (select lotOccupancyId from LotOccupancyOccupants where recordDelete_timeMillis is null and instr(lower(occupantName), ?))";
+            sqlParameters.push(occupantNamePiece);
+        }
+    }
+
+    return {
+        sqlWhereClause,
+        sqlParameters
+    };
+};
diff --git a/helpers/lotOccupancyDB/getLotOccupancies.js b/helpers/lotOccupancyDB/getLotOccupancies.js
index bfcb3622..6dd1a9a8 100644
--- a/helpers/lotOccupancyDB/getLotOccupancies.js
+++ b/helpers/lotOccupancyDB/getLotOccupancies.js
@@ -1,9 +1,10 @@
 import sqlite from "better-sqlite3";
 import { lotOccupancyDB as databasePath } from "../../data/databasePaths.js";
-import { dateIntegerToString, dateStringToInteger, dateToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
+import { dateIntegerToString, dateStringToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
 import * as configFunctions from "../functions.config.js";
 import { getOccupancyTypeById } from "../functions.cache.js";
 import { getLotOccupancyOccupants } from "./getLotOccupancyOccupants.js";
+import { getLotNameWhereClause, getOccupancyTimeWhereClause, getOccupantNameWhereClause } from "../functions.sqlFilters.js";
 const buildWhereClause = (filters) => {
     let sqlWhereClause = " where o.recordDelete_timeMillis is null";
     const sqlParameters = [];
@@ -11,56 +12,19 @@ const buildWhereClause = (filters) => {
         sqlWhereClause += " and o.lotId = ?";
         sqlParameters.push(filters.lotId);
     }
-    if (filters.lotName) {
-        if (filters.lotNameSearchType === "startsWith") {
-            sqlWhereClause += " and l.lotName like ? || '%'";
-            sqlParameters.push(filters.lotName);
-        }
-        else if (filters.lotNameSearchType === "endsWith") {
-            sqlWhereClause += " and l.lotName like '%' || ?";
-            sqlParameters.push(filters.lotName);
-        }
-        else {
-            const lotNamePieces = filters.lotName.toLowerCase().split(" ");
-            for (const lotNamePiece of lotNamePieces) {
-                sqlWhereClause += " and instr(lower(l.lotName), ?)";
-                sqlParameters.push(lotNamePiece);
-            }
-        }
-    }
-    if (filters.occupantName) {
-        const occupantNamePieces = filters.occupantName.toLowerCase().split(" ");
-        for (const occupantNamePiece of occupantNamePieces) {
-            sqlWhereClause +=
-                " and o.lotOccupancyId in (select oo.lotOccupancyId from LotOccupancyOccupants oo where oo.recordDelete_timeMillis is null and instr(lower(oo.occupantName), ?))";
-            sqlParameters.push(occupantNamePiece);
-        }
-    }
+    const lotNameFilters = getLotNameWhereClause(filters.lotName, filters.lotNameSearchType, "l");
+    sqlWhereClause += lotNameFilters.sqlWhereClause;
+    sqlParameters.push(...lotNameFilters.sqlParameters);
+    const occupantNameFilters = getOccupantNameWhereClause(filters.occupantName, "o");
+    sqlWhereClause += occupantNameFilters.sqlWhereClause;
+    sqlParameters.push(...occupantNameFilters.sqlParameters);
     if (filters.occupancyTypeId) {
         sqlWhereClause += " and o.occupancyTypeId = ?";
         sqlParameters.push(filters.occupancyTypeId);
     }
-    if (filters.occupancyTime) {
-        const currentDateString = dateToInteger(new Date());
-        switch (filters.occupancyTime) {
-            case "current": {
-                sqlWhereClause +=
-                    " and o.occupancyStartDate <= ? and (o.occupancyEndDate is null or o.occupancyEndDate >= ?)";
-                sqlParameters.push(currentDateString, currentDateString);
-                break;
-            }
-            case "past": {
-                sqlWhereClause += " and o.occupancyEndDate < ?";
-                sqlParameters.push(currentDateString);
-                break;
-            }
-            case "future": {
-                sqlWhereClause += " and o.occupancyStartDate > ?";
-                sqlParameters.push(currentDateString);
-                break;
-            }
-        }
-    }
+    const occupancyTimeFilters = getOccupancyTimeWhereClause(filters.occupancyTime, "o");
+    sqlWhereClause += occupancyTimeFilters.sqlWhereClause;
+    sqlParameters.push(...occupancyTimeFilters.sqlParameters);
     if (filters.occupancyStartDateString) {
         sqlWhereClause += " and o.occupancyStartDate = ?";
         sqlParameters.push(dateStringToInteger(filters.occupancyStartDateString));
diff --git a/helpers/lotOccupancyDB/getLotOccupancies.ts b/helpers/lotOccupancyDB/getLotOccupancies.ts
index e861fc1b..a67fe3ae 100644
--- a/helpers/lotOccupancyDB/getLotOccupancies.ts
+++ b/helpers/lotOccupancyDB/getLotOccupancies.ts
@@ -14,6 +14,7 @@ import { getOccupancyTypeById } from "../functions.cache.js";
 import { getLotOccupancyOccupants } from "./getLotOccupancyOccupants.js";
 
 import type * as recordTypes from "../../types/recordTypes";
+import { getLotNameWhereClause, getOccupancyTimeWhereClause, getOccupantNameWhereClause } from "../functions.sqlFilters.js";
 
 interface GetLotOccupanciesFilters {
     lotId?: number | string;
@@ -47,60 +48,22 @@ const buildWhereClause = (
         sqlParameters.push(filters.lotId);
     }
 
-    if (filters.lotName) {
-        if (filters.lotNameSearchType === "startsWith") {
-            sqlWhereClause += " and l.lotName like ? || '%'";
-            sqlParameters.push(filters.lotName);
-        } else if (filters.lotNameSearchType === "endsWith") {
-            sqlWhereClause += " and l.lotName like '%' || ?";
-            sqlParameters.push(filters.lotName);
-        } else {
-            const lotNamePieces = filters.lotName.toLowerCase().split(" ");
-            for (const lotNamePiece of lotNamePieces) {
-                sqlWhereClause += " and instr(lower(l.lotName), ?)";
-                sqlParameters.push(lotNamePiece);
-            }
-        }
-    }
+    const lotNameFilters = getLotNameWhereClause(filters.lotName, filters.lotNameSearchType, "l");
+    sqlWhereClause += lotNameFilters.sqlWhereClause;
+    sqlParameters.push(...lotNameFilters.sqlParameters);
 
-    if (filters.occupantName) {
-        const occupantNamePieces = filters.occupantName.toLowerCase().split(" ");
-        for (const occupantNamePiece of occupantNamePieces) {
-            sqlWhereClause +=
-                " and o.lotOccupancyId in (select oo.lotOccupancyId from LotOccupancyOccupants oo where oo.recordDelete_timeMillis is null and instr(lower(oo.occupantName), ?))";
-            sqlParameters.push(occupantNamePiece);
-        }
-    }
+    const occupantNameFilters = getOccupantNameWhereClause(filters.occupantName, "o");
+    sqlWhereClause += occupantNameFilters.sqlWhereClause;
+    sqlParameters.push(...occupantNameFilters.sqlParameters);
 
     if (filters.occupancyTypeId) {
         sqlWhereClause += " and o.occupancyTypeId = ?";
         sqlParameters.push(filters.occupancyTypeId);
     }
 
-    if (filters.occupancyTime) {
-        const currentDateString = dateToInteger(new Date());
-
-        switch (filters.occupancyTime) {
-            case "current": {
-                sqlWhereClause +=
-                    " and o.occupancyStartDate <= ? and (o.occupancyEndDate is null or o.occupancyEndDate >= ?)";
-                sqlParameters.push(currentDateString, currentDateString);
-                break;
-            }
-
-            case "past": {
-                sqlWhereClause += " and o.occupancyEndDate < ?";
-                sqlParameters.push(currentDateString);
-                break;
-            }
-
-            case "future": {
-                sqlWhereClause += " and o.occupancyStartDate > ?";
-                sqlParameters.push(currentDateString);
-                break;
-            }
-        }
-    }
+    const occupancyTimeFilters = getOccupancyTimeWhereClause(filters.occupancyTime, "o");
+    sqlWhereClause += occupancyTimeFilters.sqlWhereClause;
+    sqlParameters.push(...occupancyTimeFilters.sqlParameters);
 
     if (filters.occupancyStartDateString) {
         sqlWhereClause += " and o.occupancyStartDate = ?";
diff --git a/helpers/lotOccupancyDB/getLots.js b/helpers/lotOccupancyDB/getLots.js
index a8b7a1a0..d94229f3 100644
--- a/helpers/lotOccupancyDB/getLots.js
+++ b/helpers/lotOccupancyDB/getLots.js
@@ -2,26 +2,13 @@ import sqlite from "better-sqlite3";
 import { lotOccupancyDB as databasePath } from "../../data/databasePaths.js";
 import { dateToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
 import * as configFunctions from "../functions.config.js";
+import { getLotNameWhereClause } from "../functions.sqlFilters.js";
 const buildWhereClause = (filters) => {
     let sqlWhereClause = " where l.recordDelete_timeMillis is null";
     const sqlParameters = [];
-    if (filters.lotName) {
-        if (filters.lotNameSearchType === "startsWith") {
-            sqlWhereClause += " and l.lotName like ? || '%'";
-            sqlParameters.push(filters.lotName);
-        }
-        else if (filters.lotNameSearchType === "endsWith") {
-            sqlWhereClause += " and l.lotName like '%' || ?";
-            sqlParameters.push(filters.lotName);
-        }
-        else {
-            const lotNamePieces = filters.lotName.toLowerCase().split(" ");
-            for (const lotNamePiece of lotNamePieces) {
-                sqlWhereClause += " and instr(lower(l.lotName), ?)";
-                sqlParameters.push(lotNamePiece);
-            }
-        }
-    }
+    const lotNameFilters = getLotNameWhereClause(filters.lotName, filters.lotNameSearchType, "l");
+    sqlWhereClause += lotNameFilters.sqlWhereClause;
+    sqlParameters.push(...lotNameFilters.sqlParameters);
     if (filters.mapId) {
         sqlWhereClause += " and l.mapId = ?";
         sqlParameters.push(filters.mapId);
diff --git a/helpers/lotOccupancyDB/getLots.ts b/helpers/lotOccupancyDB/getLots.ts
index 078e143e..810d7a46 100644
--- a/helpers/lotOccupancyDB/getLots.ts
+++ b/helpers/lotOccupancyDB/getLots.ts
@@ -7,6 +7,7 @@ import { dateToInteger } from "@cityssm/expressjs-server-js/dateTimeFns.js";
 import * as configFunctions from "../functions.config.js";
 
 import type * as recordTypes from "../../types/recordTypes";
+import { getLotNameWhereClause } from "../functions.sqlFilters.js";
 
 interface GetLotsFilters {
     lotNameSearchType?: "" | "startsWith" | "endsWith";
@@ -26,24 +27,11 @@ interface GetLotsOptions {
 const buildWhereClause = (filters: GetLotsFilters): { sqlWhereClause: string; sqlParameters: unknown[];} => {
     let sqlWhereClause = " where l.recordDelete_timeMillis is null";
     const sqlParameters: unknown[] = [];
+
+    const lotNameFilters = getLotNameWhereClause(filters.lotName, filters.lotNameSearchType, "l");
+    sqlWhereClause += lotNameFilters.sqlWhereClause;
+    sqlParameters.push(...lotNameFilters.sqlParameters);
     
-    if (filters.lotName) {
-        if (filters.lotNameSearchType === "startsWith") {
-            sqlWhereClause += " and l.lotName like ? || '%'";
-            sqlParameters.push(filters.lotName);
-        } else if (filters.lotNameSearchType === "endsWith") {
-            sqlWhereClause += " and l.lotName like '%' || ?";
-            sqlParameters.push(filters.lotName);
-        } else {
-            const lotNamePieces = filters.lotName.toLowerCase().split(" ");
-            for (const lotNamePiece of lotNamePieces) {
-                sqlWhereClause += " and instr(lower(l.lotName), ?)";
-                sqlParameters.push(lotNamePiece);
-            }
-        }
-    }
-
-
     if (filters.mapId) {
         sqlWhereClause += " and l.mapId = ?";
         sqlParameters.push(filters.mapId);