* Fairfax would keep 60-70 pct of Domain - source

* Analysts value Domain at about $1.5 bln

* No plans for capital raising alongside split - source (Recasts, adds details of demerger plan, shareholder comment)

By Jamie Freed

SYDNEY, Feb 21 (Reuters) - Australian newspaper and radio group Fairfax Media Ltd is considering a partial demerger of its real estate advertising arm Domain Group to ensure its value is fully recognised by the market, said a source familiar with the situation.

While unlocking value for shareholders, a demerger would make Fairfax more reliant on newspapers in structural decline, as advertising migrates online and foreign rivals like The New York Times boost their online presence in Australia.

Domain is the company's highest-earning division and is valued by analysts at about A$2 billion ($1.54 billion), equivalent to Fairfax's entire market value based on its last trading price.

"Domain is an extremely powerful business and brand. It has been the main driver of Fairfax Media's profitability for some time," Alex Waislitz, an investor with shares in Fairfax Media, said in a statement.

"It makes complete sense to list Domain separately and allow the market to assign a proper value to both Domain and the group's remaining media assets which it appears will stay in Fairfax Media."

Fairfax, the owner of The Sydney Morning Herald and The Australian Financial Review newspapers, on Tuesday entered a trading halt pending an announcement related to Domain.

The company was considering a plan to make Domain a separate listed vehicle, with Fairfax retaining a 60 percent to 70 percent stake and distributing the remaining shares directly to its current investors, a source familiar with the matter said.

The plan to list Domain later this year did not involve a capital raising, said the source, who was not authorised to speak publicly about the matter.

Fairfax is due to release its half-year results on Wednesday.

With property prices soaring to record highs in Sydney and Melbourne, Domain's earnings before interest, tax, depreciation and amortisation (EBITDA) leapt 40 percent to A$120 million in the 12 months ended June 30.

Fairfax's EBITDA fell 2 percent last financial year with a 45 percent decline in its metro media division, reflecting the deep-seated troubles at its main newspapers.

Domain is a similar business to larger listed rival REA Group Ltd, which is controlled by News Corp.

REA Group, which has a market value of A$7.3 billion, on Feb. 10 reported a 13 percent rise in first-half EBITDA to A$200.1 million. ($1 = 1.3016 Australian dollars) (Reporting by Jamie Freed; Editing by Stephen Coates)