The table below shows the sales activity for Marin County and Southern Sonoma County for the month of April 2008, sorted alphabetically by the name of the City.
City	# of homes sold	Average Days on Market	Average ORIGINAL Asking Price	Average FINAL Selling Price	# Sold AT Original Asking Price	# Sold OVER Original Asking Price	% of Available Listings in Escrow
Corte Madera	5	23	$1,702,600	$1,670,333	-	3	30%
Fairfax	2	106	$847,000	$812,800	-	-	16%
Greenbrae	3	13	$1,764,333	$1,793,333	-	2	26%
Kentfield	10	150	$3,486,400	$2,775,400	-	2	15%
Larkspur	5	51	$1,592,780	$1,501.916	-	2	15%
Mill Valley	20	44	$1,574,450	$1,555,358	5	3	23%
Novato	46	96	$636,218	$594,460	5	9	20%
Ross	1	-	$3,200,000	$3,100,000	-	-	14%
San Anselmo	18	42	$1,422,722	$1,381,436	3	3	21%
San Rafael	45	96	$910,864	$854,429	5	5	22%
Sausalito	6	101	$1,816,667	$1,655,000	1	-	18%
Tiburon	12	52	$1,838,575	$1,807,608	2	4	18%
Marin County	180	79	NA	$1,224,710	NA	NA	20%
Petaluma	45	93	$645,441	$595,649	6	5	26%
Sonoma	21	184	$1,363,490	$1,219,656	-	3	13%
Please note that all Original Asking Prices are without any price reductions.
This information is current as of May 10, 2008 and the sources are BAREIS and CleanOffer.  I update this monthly.  When the County of Marin updates their website, which includes closed sales not on MLS, then I update my website as well.  While it has not been updated as of the writing of this post, you can check back by clicking here.