GRAPHIC GUIDE TO RESIDENTIAL SPACE PLANNING Graphic Guide to Residential Space Planning by Luis Furushio Self-published by Luis Furushio www.Luisfurushio.com © 2022, Luis Furushio All rights reserved. No portion of this book may be reproduced in any form by any electronic or mechanical means (including photocopying, recording, or information storage and retrieval) without permission in writing from the publisher, except as permitted by U.S. copyright law. For permissions contact: luisfurushio@gmail.com Author's Note Hi there, I am Luis, and I got inspired to create this book from questions I usually get from clients during the early stages of the design process. In architecture, there is always an intention behind each design decision, and this needs to be communicated throughout the entire creative process. In this book, I try to answer some of these questions, showing the "whys" behind residential design with simple drawings that are visually easy to digest. Whether you are an architecture student yearning for sources beyond basic textbooks, a homeowner searching for tips on how to remodel your house, or even a contractor wanting to improve your residential design knowledge, this is the book for you. Good design is not accomplished when you provide your own vision and what you think is best for your client. Good design is accomplished when you take your client's vision and elevate it in order to improve their quality of life while communicating your intentions. What's Inside THE FIRST SKETCHES.....................................................1 From Diagrams to Plans..................................................................... 2 EXTERIOR DESIGN CONSIDERATIONS..........................6 Exterior Environment.......................................................................... 7 Mass, Scale, and Proportions........................................................... 10 Grading and Hillside Construction.................................................... 13 House Styles in North America......................................................... 19 LIVING AREAS.................................................................21 General Analysis.............................................................................. 22 Foyer / Entry Hall Design.................................................................. 26 Living Room Design......................................................................... 32 Dining Room Design......................................................................... 42 Guest Bathroom Design................................................................... 47 SLEEPING AREAS...........................................................50 Bedroom Arrangements................................................................... 51 Bedroom Design............................................................................... 54 Bathroom Design.............................................................................. 62 KITCHEN AREA...............................................................69 Kitchen Design................................................................................. 70 UTILITY AREAS...............................................................92 Laundry Room Design...................................................................... 93 Garage Design................................................................................. 96 STAIRCASES...................................................................99 Types of Staircases........................................................................ 100 Design and Location of Staircases................................................. 101 Chapter 1 THE FIRST SKETCHES THE FIRST SKETCHES FROM DIAGRAMS TO PLANS Bubble diagrams are a helpful start for placing the different areas of a house in relationship with the orientation of the lot, the weather, the view, and how you can access the property. This first step will avoid any drastic modifications during the developement of the final floor plan. The most used areas of the house should be kept fairly close as much as possible to avoid unnecessary steps. Living areas should be kept close to the kitchen area due to the high traffic volume. Sleeping areas should be kept as far as possible from the noisy parts of the house like the utility areas, and their access should be through a transitional space like a hallway to provide more privacy. The following are bubble diagrams showing common traffic patterns between the different areas of a house. I have divided these into Living Areas, Kitchen Area, and Sleeping Areas. For the purpose of simplicity, I am not showing the utility areas. The width of the arrows represent the relative amount of traffic between the areas. S K K L L ENTRY DIAGRAM 2 Acceptable traffic flow. This is an improvement of Diagram 1. By just swaping living and sleeping areas, the linear traffic flow improves considerably. DIAGRAM 1 ENTRY Not recommended. The traffic flow from the kitchen to the living areas is too far, and the location of the sleeping area in between creates problems of traffic, noise, and privacy. K K S ENTRY S L L S ENTRY DIAGRAM 4 Very efficient traffic flow. As in Diagram 3, there is a strong connection between living and kitchen areas. The resulting “T” shape generates easy access to the sleeping areas. DIAGRAM 3 Efficient traffic flow. Sleeping areas are provided with privacy, and the resulting "L" shape generates a potential space for an outdoor area like a deck or patio. THE FIRST SKETCHES FROM DIAGRAMS TO PLANS There are several ways to arrange the different rooms in a house. The best way to approach this is by giving priority to the effcient use of the space and traffic flow. However, a particular client may request changes from the most efficient arrangement and may resist all logical argument. Always remember that a big part of the designer's job is to satisfy the needs of the client, but always make sure to communicate how these changes are going to impact their quality of life in the long run. STAIRS UP STAIRS DN K ENTRY L S 1ST LEVEL 2ND LEVEL DIAGRAM 5 Traffic flow for a two-story house. The most used areas of the house, the living room and the kitchen, are located on the first level. The private areas are located on the second level. This diagram provides easy access to the stairs that are located between the living and kitchen areas. S STAIRS DN STAIRS UP S L K ENTRY 1ST LEVEL 2ND LEVEL DIAGRAM 6 A variation of Diagram 5 with sleeping areas on the first level. The kitchen and living areas are close to each other, providing easy access to the sleeping areas and resulting in a "T" shape, similar to Diagram 4. The location of the stairs, next to the sleeping areas on both levels, provides privacy and good flow between the two levels. THE FIRST SKETCHES FROM DIAGRAMS TO PLANS The following is an example of how you can develop your first schematic floor plan. The process starts by drawing your bubble diagram and finishes with a schematic single-line floor plan. In this phase, you can also provide schematic elevations, sections, and all the sketches to help communicate your ideas and design intentions. It is important to make sure that you explain the "why" behind each design decision throughout the entire process. BUBBLE DIAGRAM We start by locating the living and kitchen areas close to each other. The sleeping and utility areas are placed on opposite sides, keeping the sleeping areas far from noises and with more privacy. The resulting shape is a linear arrangement. K U S L ENTRY SITE PLAN ANALYSIS Based on the existing conditions of the site, we start locating our resulting bubble diagram. The orientation of the lot, the existing climate conditions, the views, and the location of your neighbor's house are all crucial factors that can impact the final design. N VIEWS The linear arrangement oriented in the same direction of the sun path with minimal openings on west and east sides helps protect the house from the heat generated by the sun. WINDS WINDS K U The arrangement also takes advantage of the winds coming from the south and north to provide cross ventilation through the narrowest side of the house. L DRIVEWAY The use of natural barriers like trees and shrubs helps control solar heat gain during the summer months and provides privacy to the sleeping areas facing the front of the lot. WINDS WINDS STR EET S TREES PROVIDE PRIVACY TO THE SLEEPING AREAS THE FIRST SKETCHES FROM DIAGRAMS TO PLANS LIVING KITCHEN LAUNDRY BEDROOM 1 PRIMARY BEDROOM GARAGE BEDROOM 2 BATH. BATH. BATH. DINING ENTRY TRAFFIC DIAGRAM Room-by-room traffic diagrams help to demonstrate the traffic patterns of the future residents of the house. This will become the basis for the first rough scale floor plan. The scale of the bubbles is not important in this phase. CL. LAUND. LIVING PRIMARY BED. BED. 1 KITCHEN CL. CL. GARAGE CL. FOYER DINING BATH. CL. BED. 2 CL. BATH BATH. ENTRY SINGLE-LINE SCHEMATIC FLOOR PLAN After you define the traffic pattern, you can start creating a single-line schematic floor plan to scale. The design process is a constant exchange of ideas, and a single-line-floor plan provides the flexibility to easily make changes to your drawing. After you define the schematic floor plan, you can start adding wall thickness and creating a more finished-looking floor plan to scale. Chapter 2 EXTERIOR DESIGN CONSIDERATIONS EXTERIOR DESIGN CONSIDERATIONS PREVAILING WINDS Prevailing winds are the direction that the wind blows predominantly at a particular place or in a particular season. Wind direction, frequency, and speed can greatly impact the design of your house, including the exterior design, the shape of the floor plan, and the type of roof you want to use. CROSS VENTILATION In hot climates, a linear floor plan takes advantage of the winds coming from the south and north, generating a cross ventilation system and providing the necessary natural method of cooling. PREVAILING WINDS PREVAILING WINDS HIGH WIND REGIONS Gable roofs with overhangs and patio covers are prone to damage from strong winds. Wind forces on a roof tend to be uplift. A strong connection between the roof structure, walls, and foundation is necessary to avoid damage to the house structure. UPLIFT LOAD TREES AS NATURAL WIND BREAKS The use of trees and vegetation combined with earth dunes serve as a natural windbreak, redirecting the wind over the house structure. EXTERIOR DESIGN CONSIDERATIONS CONTROLLING SUN RADIATION AND HEAT GAIN USE OF VEGETATION Trees and vegetation provide many benefits controlling solar penetration. The shading that they offer helps make homes energy-efficient by creating a cooling effect during the hot summer months and allowing passive solar gain during cold winter months. USE OF ROOF OVERHANGS Sometimes we undervalue the importance of roof overhangs as a functional part of the design of a new house. They help to shade windows, controlling heat gain and sunlight during the summer months. USE OF LOUVERED PERGOLAS OR AWNINGS If a roof overhang is not possible, the addition of a horizontal awning or pergola over the window will provide the required shade for controlling heat gain during hot months. USE OF VERTICAL STRUCTURES In some cases, the use of roof overhangs is not enough to provide the desired shading for large windows. The addition of vertical structures like timber batten screen walls or wood lattice screens helps to improve the control of heat gain. EXTERIOR DESIGN CONSIDERATIONS DESIGN CONSIDERATIONS ON HILLSIDES Appropriate design on a sloped lot includes stepping the building massing with the terrain, breaking it into multiple volumes, and avoiding large rectangular footprints with poor proportions. Y INAR IMAG INE DE L GRA MASSIVE ROOF SHAPE CUT HIGH SKIRT WALLS INCREASING VERTICALITY EXCESSIVE SUB-FLOOR SPACE FLOOR LEVELS DON’T RELATE WITH EXISTING TOPOGRAPHY THE PROBLEM INITIAL DESIGN The initial design does not blend well with the hillside, and the high skirt wall, used for supporting the house, emphasizes its prominence. The overscaled roof shape does not relate to the existing terrain and increases the mass of the proposed building, making it look monolithic and out of proportion. USE ROOFTOP DECKS OR BALCONIES TO MITIGATE BULK AND MASS RY INA G IMA DE GRA LINE STEP OR SLOPE ROOF WITH TERRAIN CUT FILL EXCAVATE AND INSET FLOOR LEVELS PARTIALLY INTO GRADE FILL STAGGER FLOOR LEVELS PLACE FLOOR LEVELS CLOSE TO GRADE CUT THE SOLUTION REVISED DESIGN The revised design steps the rooflines with the slope to blend with the existing terrain. The floor levels are placed close and partially inset into the grade to avoid the need of a skirt wall to support the house. The cut and fill process keeps both masses approximately equal, avoiding unecessary earth work. Chapter 3 LIVING AREAS LIVING AREAS GENERAL ANALYSIS The living areas are the social core of a house where most of the interaction between the members of a social group happens. These groups can include family units of all kinds, roommates, and their guests. It's a place where you get together, eat, entertain your guests, or just relax. These areas include the foyer or entry, the living room, and the dining room. The transition between these spaces should be flawless so that a person is able to move from one place to another without any obstacles. In the following examples, I am also including the kitchen area in some of these drawings, as it is strongly related to the dining room and living room areas. TO BACKYARD DESIGN 1 In this typical arrangement, you can clearly identify four formal areas divided by partition walls: a foyer with a guest bathroom and coat closet, a large living room, a kitchen, and a formal dining room. TO LAUNDRY AND GARAGE KITCHEN LIVING All the formal rooms are connected through openings where size depends on the amount of traffic required to go from room to room. This traditional layout maintains the home classic style. TO BEDROOMS DINING Formal enclosed spaces provide privacy and coziness to each room. Sound and temperature are also easier to control, and the high number of walls allows you to decorate the space with art and more furniture. FOYER ENTRY COAT CLOSET GUEST BATHROOM LIVING AREAS GENERAL ANALYSIS TO BACKYARD LIVING DESIGN 2 The enlargement of the openings emphasizes the visual connection between rooms without losing the sense of separation between them. The kitchen and dining area share a common space, but the location of the kitchen island defines the two spaces. TV KITCHEN NEW HEADER TO LAUNDRY AND GARAGE The sliding doors in the dining room provide privacy to the space and flexibility for access to the guest bathroom via the foyer area. TO BEDROOMS COAT CLOSET FOYER DINING GUEST BATHROOM ENTRY TO BACKYARD DESIGN 3 The removal of the existing partition walls provides a better traffic flow between the spaces and more flexibility to accommodate furniture. You can easily convert the dining room into a living room and vice versa. On the downside, open floor plans don't provide a sense of privacy, and the spaces are visually hard to control and define. KITCHEN LIVING TO LAUNDRY AND GARAGE Because of the removal of load bearing walls, a structural beam may be required to support the ceiling and roof structure, which could increase the cost of the project. NEW BEAM TO BEDROOMS COAT CLOSET DINING ENTRY GUEST BATHROOM Chapter 4 SLEEPING AREAS SLEEPING AREAS SIDE BY SIDE BEDROOM LAYOUTS In design, there are situations where you can take many advantages in terms of the efficient use of space. Having two rooms next to each other that share the same use of the space is one of them. The need for both bedrooms to have a closet and the way you access them can help you provide an efficient design solution, replicating it for both of them. Keep in mind that all these solutions have their pros and cons. 8’-7” 2.62m 3’-4” 1.02m 3’-4” 1.02m 8’-7” 2.62m 11’-7” 3.52m 2’-0” 0.61m QUEEN QUEEN 12’-5” 3.78m 12’-5” 3.78m DESIGN 1 A simple design solution with closets along one of the walls. The downside about this design is that it does not provide sound control between both bedrooms, and a hallway may be needed to avoid doors opening directly to the living and dining room areas. 14’-0” 4.27m 11’-2” 3.40m 2’-0” 0.61m QUEEN 11’-2” 3.40m QUEEN 25’-3” 7.70m DESIGN 2 Placing the closets along the shared wall of both bedrooms can be a very efficient solution. It helps provide sound control, but it reduces the size of the closets in length. As in design 1, a hallway may be needed to avoid doors opening directly to the living and dining room areas. SLEEPING AREAS PRIMARY BATHROOM DESIGN 144” 366cm 16” 40cm RAINFALL SHOWERHEAD 72” 182cm NICHE 52” 132cm 88” 223cm 36” 91cm 56” 142cm PICTURE WINDOW FREE STANDING TUB BENCH 36” 91cm 72” 182cm 36” 91cm CURBLESS SHOWER WALL HUNG TOILET FLOATING VANITY WITH SHELF BELOW DESIGN 3 The location of the plumbing fixtures on each side of the space allows the creation of a center aisle, generating an efficient linear flow. Although the circulation space may feel cramped, the bathroom fulfills its basic purpose. 144” 366cm 72” 183cm RAINFALL SHOWER HEAD WETROOM 88” 223cm 66” 167cm 22” 56cm 72” 183cm MEDICINE CABINET WITH MIRROR PICTURE WINDOW FREE STANDING TUB NICHE 36” 91cm 36” 91cm 72” 183cm FLOATING VANITY WITH SHELF BELOW LINEAR DRAIN WALL HUNG TOILET DESIGN 4 Wet rooms are considered a high-end bathroom option, but in some cases, they can be a solution for small spaces. This bathroom has the exact dimensions as in design 3, yet the space seems bigger. The biggest challenge for a wet room is that the entire room enclosure gets wet, so it needs to be entirely waterproofed. KITCHEN AREA Chapter 5 KITCHEN AREA KITCHEN AREA KITCHEN WORKING ZONES Like I mentioned before, the kitchen working triangle is a good point to start your kitchen, design but it has some limitations and doesn’t work for all kitchens. Kitchen zones are separate workspaces within a layout, each intended for a different task, and if they are well located, it can improve your workflow and efficiency. Kitchen zones are based on your own workflow and preferences, and additional zones can be added according to your needs. These ma ones for working or studying, or even a kitchen zone for watching TV. FOOD STORAGE The food zone is the area around the refrigerator and the pantry closet where you store most of your grocery shopping food items. CLEANING The sink and the dishwasher are the central point of the cleaning area, and it is recommended to have countertop space on each side. The use of this zone is not only limited to washing dishes and utensils, but it also includes washing up vegetables, unpacking frozen items, filling up pots, etc. PREPARATION This is the countertop space where you cut, chop, knead, etc., which requires ample surface space. Keep all the cookingware and utensils that you are going to use to prepare the ingredients as close as possible to the preparation area. COOKING The cooking area is located where your range is, and it is recommended to be adjacent to your preparation zone. You should have your cookware, utensils, spices, and condiments within easy reach. The oven is also part of this area, but it doesn’t have to be in this area, since it is not used that often. 86” 218cm 24” 61cm 24” 61cm 24” 61cm SERVING If your kitchen design includes a seating area like a peninsula, this is the zone where you serve food, drinks, or place snacks for your family or guests. STORAGE 127” 323cm 15” 38cm This is where you keep kitchenware, appliances, trays, and other utensils. Keep the things you use every day within easy reach like mugs, cereal bowls, dinner plates, etc., and store larger items like pots and pans in your base cabinets. KITCHEN AREA TYPE OF RANGE HOODS SUB-FLOOR SUB-FLOOR WALL MOUNT THROUGH ROOF The most common type of hood. They are mounted against a wall in the kitchen and vented directly out the roof. RETRACTABLE DOWNDRAFT This system is a great solution for kitchen island cooktops and for creating a modern and minimal look, but they have a lower efficiency of drawing steam from taller pots and pans. SUB-FLOOR SUB-FLOOR WALL MOUNT THROUGH WALL If your kitchen is located on the first level and you have a second floor above, running ducts through your roof may not be possible, and you will need to vent through an exterior wall. CEILING FLUSH MOUNT THROUGH ROOF This is also a great solution for kitchen island cooktops but not the most functional. For maximum efficiency, they require a higher flow rate, and the hood needs to be larger than the cooktop because they are installed far from the cooking surface. GET THE E-BOOK Sharing the WHYS Behind Residential Design GET THE FULL VERSION HERE