King County Housing Market Analysis: Final Report
This document combines the final data story, design choices made based on audience
needs, and a reflection on the original project proposal.
Project Proposal: King County Housing Market Analysis
1. Topic and Justification
Topic: King County Housing Market Analysis
Justification: I am interested in analyzing the King County Housing Market to better
understand the relationship between various housing features and their price points.
This information can be valuable to potential homebuyers, sellers, and investors in the
area.
2. Business Case and Objectives
Business Case:
This project aims to provide insights into the King County housing market,
including trends, property value drivers, and potential buying or selling
opportunities.
The findings can be used by realtors to inform their clients and make data-driven
recommendations.
Potential homebuyers can leverage this information to identify areas and property
types that fit their budget and needs.
Investors can utilize the analysis to make informed decisions about buying and
selling properties in King County.
Objectives:
Identify trends in King County housing prices over time.
Analyze the relationship between house price and features like bedrooms,
bathrooms, square footage, lot size, and waterfront location.
Explore how house condition and year built affect marketability.
Create a visual representation of the data to communicate insights effectively.
3. Persona
Persona 1: Sarah, the Homebuyer
Age: 32
Occupation: Marketing Manager
Needs: Sarah and her husband are looking to buy their first home in King
County. They are interested in a 3-bedroom house with at least 2 bathrooms in a
safe neighborhood with good schools. They would prefer a house with a yard but
are open to considering different options depending on their budget.
Persona 2: David, the Real Estate Investor
Age: 45
Occupation: Real Estate Investor
Needs: David is looking to invest in properties in King County with the potential
for high return on investment. He is interested in identifying undervalued
properties that he can renovate and resell for a profit.
4. Data Description
The data provided is a sample of King County housing sales. It includes the following
attributes:
date: Sale date of the property
price: Sale price of the property
bedrooms: Number of bedrooms
bathrooms: Number of bathrooms
sqft_living: Square footage of living space
sqft_lot: Square footage of the lot
floors: Number of floors
waterfront: Whether the property is located on the waterfront.
view: View quality (Excellent, Good, Average, Fair, No View)
condition: Condition of the property (Poor-Worn out, Fair-Badly worn, Average,
Good, Very Good)
grade: Overall grade of the property (based on a scoring system)
yr_built: Year the property was built.
zipcode: Zip code of the property location
lat: Latitude coordinate of the property location
long: Longitude coordinate of the property location
This data is well-suited for my project because it allows me to analyze the relationship
between various housing features and their sale prices.
5. Presentation
I plan to present my findings in a visually appealing and informative way using charts,
graphs, and maps.
Charts and graphs will be used to show trends over time, distributions of house
prices and property features, and correlations between variables.
Maps will be used to visualize price trends and housing characteristics
geographically across King County.
6. Challenges
The provided data may not be representative of the entire King County housing
market.
A small sample size might lead to inaccurate conclusions.
There may be additional factors affecting house prices that are not included in
the data set, such as school district ratings or proximity to amenities.
I plan to address these challenges by acknowledging the limitations of the data and by
mentioning the need for further analysis that considers a more comprehensive dataset.
Data Story URL:
https://public.tableau.com/app/profile/keith.kiprop.kimeli/viz/KingCountyHousingMarketA
nalysisMulti-slide/NavigatingKingCountyHousing?publish=yes
Design Decisions Based on Audience Needs
The original project proposal outlined a plan to analyze the King County Housing Market
and present the findings in a way that benefits both Sarah, the homebuyer, and David,
the real estate investor. This final data story fulfills that objective by providing insights
into price trends, the impact of features on price, and how factors like view and
condition can influence value.
While the proposal planned for exploring school district ratings and proximity to
amenities, these aspects were not included in the final data story due to data limitations.
However, the focus on core features and their price impact remains valuable for both
buyer and investor personas.
Here are three specific design choices made with the audience in mind:
1. Dual-Persona Narrative:
The introduction and conclusion specifically mention Sarah and David by name,
highlighting how the data story caters to their distinct needs. This personalized
approach keeps the audience engaged and clarifies how the information can be applied
to their goals (buying a home vs. identifying investment opportunities).
2. Clear and Concise Visualizations:
The data story utilizes a variety of charts and graphs, but ensures they are clear and
easy to understand. Complex visualizations can be overwhelming, so using well-labeled
charts with limited text allows both Sarah and David to grasp the key takeaways without
getting bogged down in technical details.
3. Actionable Insights:
The data story goes beyond just presenting findings. It translates those findings into
actionable insights. For example, the heatmap on view and condition not only reveals
the impact on price but also suggests potential renovation opportunities for David, the
investor. Similarly, discussions on price ranges and bedroom distribution provide
practical considerations for Sarah, the homebuyer.
By incorporating these design elements, the data story effectively bridges the gap
between data and practical application, making the information useful for both Sarah
and David in navigating the King County housing market.