Organization, Consolidation and Presentation of Financial Statements	9 Months Ended
Sep. 30, 2011
Organization, Consolidation and Presentation of Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]	Note A – Basis of Presentation The accompanying unaudited consolidated financial statements of Consolidated Capital Properties IV, LP (the "Partnership" or "Registrant") have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8-03 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of ConCap Equities, Inc. ("CEI" or the "General Partner"), all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2011 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2011. The consolidated balance sheet at December 31, 2010 has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 2010. The General Partner is a subsidiary of Apartment Investment and Management Company ("Aimco"), a publicly traded real estate investment trust. Going Concern: The Partnership Agreement provides that the Partnership is to terminate on December 31, 2011 unless terminated prior to such date. Since the Partnership’s term will expire on December 31, 2011 and the term cannot be extended, the General Partner is currently evaluating its plans with respect to the Partnership’s three properties (see merger discussion below). The 2011 and 2010 consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that may result from the outcome of this uncertainty. Subsequent Events: The Partnership’s management evaluated subsequent events through the time this Quarterly Report on Form 10-Q was filed. Net Loss per Limited Partnership Unit: Net loss per limited partnership unit is computed by dividing net loss allocated to the limited partners by the number of units outstanding at the beginning of the fiscal year. The number of units used was 342,759 and 342,763 for the three and nine months ended September 30, 2011 and 2010, respectively. Organization: On July 28, 2011, the Partnership entered into an agreement and plan of merger (the “Merger Agreement”) with AIMCO Properties, L.P., a Delaware limited partnership, and AIMCO CCP IV Merger Sub LLC, a Delaware limited liability company of which AIMCO Properties, L.P. is the sole member (the “Merger Subsidiary”), pursuant to which the Merger Subsidiary will be merged with and into the Partnership, with the Partnership as the surviving entity. In the merger, each unit of limited partnership interest (each, a “Unit”) of the Partnership outstanding immediately prior to the consummation of the merger (other than Units held by limited partners who perfect their appraisal rights pursuant to the Merger Agreement) will be converted into the right to receive, at the election of the limited partner, either (i) $57.44 in cash (the “Cash Consideration”) or (ii) a number of partnership common units of AIMCO Properties, L.P. calculated by dividing $57.44 by the average closing price of Aimco common stock, as reported on the New York Stock Exchange, over the ten consecutive trading days ending on the second trading day immediately prior to the effective time of the merger. However, if AIMCO Properties, L.P. determines that the law of the state or other jurisdiction in which a limited partner resides would prohibit the issuance of partnership common units of AIMCO Properties, L.P. in that state or other jurisdiction (or that registration or qualification in that state or jurisdiction would be prohibitively costly), then such limited partner will only be entitled to receive the Cash Consideration for each Unit. Those limited partners who do not make an election will be deemed to have elected to receive the Cash Consideration. In the merger, AIMCO Properties, L.P.’s membership interest in the Merger Subsidiary will be converted into Units of the Partnership. As a result, after the merger, AIMCO Properties, L.P. will be the sole limited partner of the Partnership, holding all outstanding Units. CEI will continue to be the general partner of the Partnership after the merger, and the Partnership’s partnership agreement in effect immediately prior to the merger will remain unchanged after the merger. Completion of the merger is subject to certain conditions, including approval by a majority in interest of the limited partners holding Units. In addition, the terms of the merger may be modified before the merger is completed. As of September 30, 2011 and December 31, 2010, the Partnership had issued and outstanding 342,759 Units, and AIMCO Properties, L.P. and its affiliates owned 237,778.5 of those Units, or approximately 69.4% of the number of outstanding Units. AIMCO Properties, L.P and its affiliates have indicated that they intend to take action by written consent to approve the merger.

Organization, Consolidation and Presentation of Financial Statements

9 Months Ended

Sep. 30, 2011

Organization, Consolidation and Presentation of Financial Statements

Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]

Note A – Basis of Presentation

The accompanying unaudited consolidated financial statements of Consolidated Capital Properties IV, LP (the "Partnership" or "Registrant") have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 8-03 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of ConCap Equities, Inc. ("CEI" or the "General Partner"), all adjustments (consisting of normal recurring items) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2011 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2011. The consolidated balance sheet at December 31, 2010 has been derived from the audited financial statements at that date but does not include all of the information and disclosures required by generally accepted accounting principles for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Partnership's Annual Report on Form 10-K for the fiscal year ended December 31, 2010. The General Partner is a subsidiary of Apartment Investment and Management Company ("Aimco"), a publicly traded real estate investment trust.

Going Concern: The Partnership Agreement provides that the Partnership is to terminate on December 31, 2011 unless terminated prior to such date. Since the Partnership’s term will expire on December 31, 2011 and the term cannot be extended, the General Partner is currently evaluating its plans with respect to the Partnership’s three properties (see merger discussion below). The 2011 and 2010 consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that may result from the outcome of this uncertainty.

Subsequent Events: The Partnership’s management evaluated subsequent events through the time this Quarterly Report on Form 10-Q was filed.

Net Loss per Limited Partnership Unit: Net loss per limited partnership unit is computed by dividing net loss allocated to the limited partners by the number of units outstanding at the beginning of the fiscal year. The number of units used was 342,759 and 342,763 for the three and nine months ended September 30, 2011 and 2010, respectively.

Organization: On July 28, 2011, the Partnership entered into an agreement and plan of merger (the “Merger Agreement”) with AIMCO Properties, L.P., a Delaware limited partnership, and AIMCO CCP IV Merger Sub LLC, a Delaware limited liability company of which AIMCO Properties, L.P. is the sole member (the “Merger Subsidiary”), pursuant to which the Merger Subsidiary will be merged with and into the Partnership, with the Partnership as the surviving entity.

In the merger, each unit of limited partnership interest (each, a “Unit”) of the Partnership outstanding immediately prior to the consummation of the merger (other than Units held by limited partners who perfect their appraisal rights pursuant to the Merger Agreement) will be converted into the right to receive, at the election of the limited partner, either (i) $57.44 in cash (the “Cash Consideration”) or (ii) a number of partnership common units of AIMCO Properties, L.P. calculated by dividing $57.44 by the average closing price of Aimco common stock, as reported on the New York Stock Exchange, over the ten consecutive trading days ending on the second trading day immediately prior to the effective time of the merger. However, if AIMCO Properties, L.P. determines that the law of the state or other jurisdiction in which a limited partner resides would prohibit the issuance of partnership common units of AIMCO Properties, L.P. in that state or other jurisdiction (or that registration or qualification in that state or jurisdiction would be prohibitively costly), then such limited partner will only be entitled to receive the Cash Consideration for each Unit. Those limited partners who do not make an election will be deemed to have elected to receive the Cash Consideration.

In the merger, AIMCO Properties, L.P.’s membership interest in the Merger Subsidiary will be converted into Units of the Partnership. As a result, after the merger, AIMCO Properties, L.P. will be the sole limited partner of the Partnership, holding all outstanding Units. CEI will continue to be the general partner of the Partnership after the merger, and the Partnership’s partnership agreement in effect immediately prior to the merger will remain unchanged after the merger.

Completion of the merger is subject to certain conditions, including approval by a majority in interest of the limited partners holding Units. In addition, the terms of the merger may be modified before the merger is completed. As of September 30, 2011 and December 31, 2010, the Partnership had issued and outstanding 342,759 Units, and AIMCO Properties, L.P. and its affiliates owned 237,778.5 of those Units, or approximately 69.4% of the number of outstanding Units. AIMCO Properties, L.P and its affiliates have indicated that they intend to take action by written consent to approve the merger.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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