<PAGE> PAGE 1
000 A000000 06/30/99
000 C000000 000921770
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 VAN KAMPEN REAL ESTATE SECURITIES FUND
001 B000000 811-08480
001 C000000 6306846000
002 A000000 1 PARKVIEW PLAZA
002 B000000 OAKBROOK TERRACE
002 C000000 IL
002 D010000 60181
002 D020000 5555
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
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007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 VAN KAMPEN ASSET MANAGEMENT INC.
008 B000001 A
008 C000001 801-8286
008 D010001 OAKBROOK TERRACE
008 D020001 IL
008 D030001 60181
008 D040001 5555
011 A000001 VAN KAMPEN FUNDS INC.
011 B000001 8-19903
011 C010001 OAKBROOK TERRACE
011 C020001 IL
011 C030001 60181
012 A000001 VAN KAMPEN INVESTOR SERVICES, INC.
012 B000001 84-01621
012 C010001 KANSAS CITY
012 C020001 MO
012 C030001 64141
013 A000001 PRICEWATERHOUSECOOPERS LLP
<PAGE> PAGE 2
013 B010001 CHICAGO
013 B020001 IL
013 B030001 60601
014 A000001 MORGAN STANLEY & CO., INCORPORATED
014 B000001 8-733537
014 A000002 DEAN WITTER REYNOLDS, INC.
014 B000002 8-728181
015 A000001 STATE STREET BANK & TRUST CO.
015 B000001 C
015 C010001 BOSTON
015 C020001 MA
015 C030001 02110
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 118
019 C000000 VANKAMPENF
020 A000001 PAINE WEBBER INC.
020 B000001 13-2638166
020 C000001 25
020 A000002 MERRILL LYNCH INC.
020 B000002 13-5674085
020 C000002 17
020 A000003 LEHMAN BROS INC.
020 B000003 13-2518466
020 C000003 15
020 A000004 GOLDMAN SACHS & CO
020 B000004 13-5108880
020 C000004 13
020 A000005 BEAR STEARNS & CO. INC.
020 B000005 13-3299429
020 C000005 13
020 A000006 PRUDENTIAL SECURITIES
020 B000006 22-2347336
020 C000006 9
020 A000007 ALEX BROWN & SONS
020 B000007 52-1319768
020 C000007 8
020 A000008 DONALDSON LUFKIN & JENRETTE
020 B000008 13-2741729
020 C000008 7
020 A000009 JP MORGAN SECURITIES
020 B000009 13-3224016
020 C000009 6
020 A000010 GREENSTREET ADVISORS INC.
020 B000010 33-0275837
020 C000010 6
021 000000 148
022 A000001 BA SECURITIES
022 B000001 95-4035346
022 C000001 173274
<PAGE> PAGE 3
022 D000001 0
022 A000002 DONALDSON LUFKIN JENNRETTE
022 B000002 13-2741729
022 C000002 3770
022 D000002 0
022 A000003 SBC WARBURG, DILLION READ
022 B000003 13-3498485
022 C000003 2985
022 D000003 0
022 A000004 MONTGOMERY SECURITIES
022 B000004 94-1701676
022 C000004 0
022 D000004 5
022 C000005 0
022 D000005 0
022 C000006 0
022 D000006 0
022 C000007 0
022 D000007 0
022 C000008 0
022 D000008 0
022 C000009 0
022 D000009 0
022 C000010 0
022 D000010 0
023 C000000 180029
023 D000000 5
024 000000 Y
025 A000001 BA SECURITIES
025 B000001 95-4035346
025 C000001 E
025 D000001 1435
025 D000002 0
025 D000003 0
025 D000004 0
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
026 A000000 Y
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
028 A010000 2430
028 A020000 0
<PAGE> PAGE 4
028 A030000 0
028 A040000 5278
028 B010000 37413
028 B020000 0
028 B030000 0
028 B040000 5333
028 C010000 3833
028 C020000 850
028 C030000 0
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028 D010000 3147
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028 D040000 7089
028 E010000 4097
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028 E040000 4693
028 F010000 2437
028 F020000 828
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028 F040000 3467
028 G010000 53357
028 G020000 1678
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029 000000 Y
030 A000000 118
030 B000000 4.75
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032 000000 105
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<PAGE> PAGE 5
042 H000000 0
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049 000000 N
050 000000 N
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<PAGE> PAGE 6
055 A000000 Y
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<PAGE> PAGE 7
070 F020000 N
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<PAGE> PAGE 8
072 W000000 158
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074 V020000 12.32
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<PAGE> PAGE 9
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SIGNATURE WESTON B. WETHERELL
TITLE ATTORNEY
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
<F1> This item relates to the Fund on a composite
basis and not on a class basis
</LEGEND>
<SERIES>
<NUMBER> 11
<NAME> REAL ESTATE A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<INVESTMENTS-AT-COST> 147,524,365 <F1>
<INVESTMENTS-AT-VALUE> 150,468,516 <F1>
<RECEIVABLES> 2,683,771 <F1>
<ASSETS-OTHER> 0 <F1>
<OTHER-ITEMS-ASSETS> 7,679 <F1>
<TOTAL-ASSETS> 153,159,966 <F1>
<PAYABLE-FOR-SECURITIES> 0 <F1>
<SENIOR-LONG-TERM-DEBT> 0 <F1>
<OTHER-ITEMS-LIABILITIES> 996,593 <F1>
<TOTAL-LIABILITIES> 996,593 <F1>
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 58,891,515
<SHARES-COMMON-STOCK> 4,787,414
<SHARES-COMMON-PRIOR> 3,601,174
<ACCUMULATED-NII-CURRENT> 837,377 <F1>
<OVERDISTRIBUTION-NII> 0 <F1>
<ACCUMULATED-NET-GAINS> (5,282,375)<F1>
<OVERDISTRIBUTION-GAINS> 0 <F1>
<ACCUM-APPREC-OR-DEPREC> 2,944,151 <F1>
<NET-ASSETS> 58,971,363
<DIVIDEND-INCOME> 3,070,403 <F1>
<INTEREST-INCOME> 69,291 <F1>
<OTHER-INCOME> 0 <F1>
<EXPENSES-NET> 1,603,301 <F1>
<NET-INVESTMENT-INCOME> 1,536,393 <F1>
<REALIZED-GAINS-CURRENT> (1,156,104)<F1>
<APPREC-INCREASE-CURRENT> 8,212,278 <F1>
<NET-CHANGE-FROM-OPS> 8,592,567 <F1>
<EQUALIZATION> 0 <F1>
<DISTRIBUTIONS-OF-INCOME> (905,131)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,094,765
<NUMBER-OF-SHARES-REDEEMED> (977,723)
<SHARES-REINVESTED> 69,198
<NET-CHANGE-IN-ASSETS> 17,275,346
<ACCUMULATED-NII-PRIOR> 1,307,574 <F1>
<ACCUMULATED-GAINS-PRIOR> (4,126,271)<F1>
<OVERDISTRIB-NII-PRIOR> 0 <F1>
<OVERDIST-NET-GAINS-PRIOR> 0 <F1>
<GROSS-ADVISORY-FEES> 690,413 <F1>
<INTEREST-EXPENSE> 0 <F1>
<GROSS-EXPENSE> 1,728,890 <F1>
<AVERAGE-NET-ASSETS> 51,899,891
<PER-SHARE-NAV-BEGIN> 11.578
<PER-SHARE-NII> 0.121
<PER-SHARE-GAIN-APPREC> 0.809
<PER-SHARE-DIVIDEND> (0.190)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 12.318
<EXPENSE-RATIO> 1.81
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
<F1> This item relates to the Fund on a composite
basis and not on a class basis
</LEGEND>
<SERIES>
<NUMBER> 12
<NAME> REAL ESTATE B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<INVESTMENTS-AT-COST> 147,524,365 <F1>
<INVESTMENTS-AT-VALUE> 150,468,516 <F1>
<RECEIVABLES> 2,683,771 <F1>
<ASSETS-OTHER> 0 <F1>
<OTHER-ITEMS-ASSETS> 7,679 <F1>
<TOTAL-ASSETS> 153,159,966 <F1>
<PAYABLE-FOR-SECURITIES> 0 <F1>
<SENIOR-LONG-TERM-DEBT> 0 <F1>
<OTHER-ITEMS-LIABILITIES> 996,593 <F1>
<TOTAL-LIABILITIES> 996,593 <F1>
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 74,461,904
<SHARES-COMMON-STOCK> 5,916,812
<SHARES-COMMON-PRIOR> 5,561,643
<ACCUMULATED-NII-CURRENT> 837,377 <F1>
<OVERDISTRIBUTION-NII> 0 <F1>
<ACCUMULATED-NET-GAINS> (5,282,375)<F1>
<OVERDISTRIBUTION-GAINS> 0 <F1>
<ACCUM-APPREC-OR-DEPREC> 2,944,151 <F1>
<NET-ASSETS> 72,880,423
<DIVIDEND-INCOME> 3,070,403 <F1>
<INTEREST-INCOME> 69,291 <F1>
<OTHER-INCOME> 0 <F1>
<EXPENSES-NET> 1,603,301 <F1>
<NET-INVESTMENT-INCOME> 1,536,393 <F1>
<REALIZED-GAINS-CURRENT> (1,156,104)<F1>
<APPREC-INCREASE-CURRENT> 8,212,278 <F1>
<NET-CHANGE-FROM-OPS> 8,592,567 <F1>
<EQUALIZATION> 0 <F1>
<DISTRIBUTIONS-OF-INCOME> (863,635)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,723,853
<NUMBER-OF-SHARES-REDEEMED> (1,428,561)
<SHARES-REINVESTED> 59,877
<NET-CHANGE-IN-ASSETS> 8,507,447
<ACCUMULATED-NII-PRIOR> 1,307,574 <F1>
<ACCUMULATED-GAINS-PRIOR> (4,126,271)<F1>
<OVERDISTRIB-NII-PRIOR> 0 <F1>
<OVERDIST-NET-GAINS-PRIOR> 0 <F1>
<GROSS-ADVISORY-FEES> 690,413 <F1>
<INTEREST-EXPENSE> 0 <F1>
<GROSS-EXPENSE> 1,728,890 <F1>
<AVERAGE-NET-ASSETS> 69,080,584
<PER-SHARE-NAV-BEGIN> 11.574
<PER-SHARE-NII> 0.096
<PER-SHARE-GAIN-APPREC> 0.790
<PER-SHARE-DIVIDEND> (0.142)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 12.318
<EXPENSE-RATIO> 2.61
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
<F1> This item relates to the Fund on a composite
basis and not on a class basis
</LEGEND>
<SERIES>
<NUMBER> 13
<NAME> REAL ESTATE C
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-START> JAN-01-1999
<PERIOD-END> JUN-30-1999
<INVESTMENTS-AT-COST> 147,524,365 <F1>
<INVESTMENTS-AT-VALUE> 150,468,516 <F1>
<RECEIVABLES> 2,683,771 <F1>
<ASSETS-OTHER> 0 <F1>
<OTHER-ITEMS-ASSETS> 7,679 <F1>
<TOTAL-ASSETS> 153,159,966 <F1>
<PAYABLE-FOR-SECURITIES> 0 <F1>
<SENIOR-LONG-TERM-DEBT> 0 <F1>
<OTHER-ITEMS-LIABILITIES> 996,593 <F1>
<TOTAL-LIABILITIES> 996,593 <F1>
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 20,310,801
<SHARES-COMMON-STOCK> 1,649,913
<SHARES-COMMON-PRIOR> 1,474,850
<ACCUMULATED-NII-CURRENT> 837,377 <F1>
<OVERDISTRIBUTION-NII> 0 <F1>
<ACCUMULATED-NET-GAINS> (5,282,375)<F1>
<OVERDISTRIBUTION-GAINS> 0 <F1>
<ACCUM-APPREC-OR-DEPREC> 2,944,151 <F1>
<NET-ASSETS> 20,311,587
<DIVIDEND-INCOME> 3,070,403 <F1>
<INTEREST-INCOME> 69,291 <F1>
<OTHER-INCOME> 0 <F1>
<EXPENSES-NET> 1,603,301 <F1>
<NET-INVESTMENT-INCOME> 1,536,393 <F1>
<REALIZED-GAINS-CURRENT> (1,156,104)<F1>
<APPREC-INCREASE-CURRENT> 8,212,278 <F1>
<NET-CHANGE-FROM-OPS> 8,592,567 <F1>
<EQUALIZATION> 0 <F1>
<DISTRIBUTIONS-OF-INCOME> (237,824)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 559,569
<NUMBER-OF-SHARES-REDEEMED> (401,422)
<SHARES-REINVESTED> 16,916
<NET-CHANGE-IN-ASSETS> 3,251,051
<ACCUMULATED-NII-PRIOR> 1,307,574 <F1>
<ACCUMULATED-GAINS-PRIOR> (4,126,271)<F1>
<OVERDISTRIB-NII-PRIOR> 0 <F1>
<OVERDIST-NET-GAINS-PRIOR> 0 <F1>
<GROSS-ADVISORY-FEES> 690,413 <F1>
<INTEREST-EXPENSE> 0 <F1>
<GROSS-EXPENSE> 1,728,890 <F1>
<AVERAGE-NET-ASSETS> 18,737,299
<PER-SHARE-NAV-BEGIN> 11.568
<PER-SHARE-NII> 0.092
<PER-SHARE-GAIN-APPREC> 0.793
<PER-SHARE-DIVIDEND> (0.142)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 12.311
<EXPENSE-RATIO> 2.61
</TABLE>
