Build:
Stairs:
Deck Stairs

Ladder Stairs

All found here
http://simfileshare.net/folder/163951/Walls, Floors, Terrains:
6 Rich Colored Walls With Matching Carpet

Angel (Victorian Country) Walls

Antique Walls

Brick Walls

City Brick

Clitt Terrain Paints

Earthy Shades of Stone Terrain Paint

Old Bricks and Stone Walls For Your Cottages

Old Walls

Plaster and Stencil Walls

Shades of Black Shingles & Floors

Shades of Brown Shingles & Floors

Simple Stripes Walls & Birch Floor

Stepping Stones and Daysies Groundcover

Tudor Cracked Plaster Walls

Tudor Grey Stone Walls

Tudor Stone Walls

Tudor Walls

Very NYC Apartment Chic (floor is available separately as Wideplanks Dark)

White Tile Floor)

Wideplanks Dark (also included as part of Very NYC Apartment Chic)

All found here
http://simfileshare.net/folder/163953/Buy:
Bathrooms:
Beachy Bath

Beachy Bath in Aqua

Beachy Bath in Lightwood

All found here
http://simfileshare.net/folder/164012/Bedrooms:
A La Champagne Bedroom

Brass Beds

Deco Bed Pillows

Simple Country Beds

All found here
http://simfileshare.net/folder/164013/