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Map of HDB blocks in Singapore

Map of HDB blocks

12000+ HDB blocks from Singapore mapped by Teoalida, alternative to official HDB Map Services. Click block icons and view year built, number of floors, number of units breakdown by flat type, upgrading programmes, typical floor plans, chances to get SERS, etc. Apply filters to display only blocks that meet certain criteria.

HDB floor plan

HDB history and floor plan evolution 1930s – 2020s

This page shows floor plans of ~100 most common HDB flat types and most representative layouts, from 1930s SIT flats to present BTO flats.

Ang Mo Kio, Bedok, Bishan, Bukit Batok, Bukit Merah, Bukit Panjang, Bukit Timah, Central Area, Choa Chu Kang, Clementi, Geylang, Hougang, Jurong East, Jurong West, Kallang/Whampoa, Marine Parade, Pasir Ris, Punggol, Queenstown, Sembawang, Sengkang, Serangoon, Tampines, Tengah, Toa Payoh, Woodlands, Yishun.

House design

House models designed by me

50+ house floor plans and 3D models designed by me from personal interest (artistic hobby / training) as well as for various customers. A mix of architectural design styles inspired from Singapore, Malaysia, Philippines, India, Europe, America and many others. I keep my past works here to offer ideas for students. View for free, pay and download AutoCAD DWG files.

Singapore HDB

Singapore HDB database

Collecting data from multiple sources, I spent 500+ hours entering data in one Excel table: block number, street address, postal code, GPS coordinates, construction year, lease commence date, number of floors, number of units breakdown by flat type, upgrading programmes, brochures and floor plans.

The database has been purchased by several companies, including home insurance, telecommunication, door-to-door services, real estate portals, flyer distributors, etc. Season parking.

HDB Resale Price Index

HDB price trends

HDB Resale Price Index DOUBLED from 2007 to 2013, dropped 10% to 2015 then stabilized. When COVID-19 pandemic started, I was expecting prices dropping like during 2003 SARS, but contrary happened: internet connection available nowadays allowed people to work from home, and despite that pandemic caused a short-term global recession, it changed people lifestyle towards investing more in (bigger) homes, further accelerating prices growth.

Map of condos in Singapore

Map of private properties

An original project “Made by Teoalida” displaying data from PropertyGuru on an interactive map. Click condo pins on map to see details about each property such as address, completion year, tenure, number of units, developer, etc. You can also apply filters to display on map only HDB blocks that meet certain criteria.

Cars evolution

Car database in Excel

List of car makes, models, trims, engine versions, specifications and features. All automobiles sold in Europe, America, Middle East, India, Japan, Australia, etc. I started collecting car data in Excel voluntarily in 2003 and since 2012 the hobby turned into a business, databases been purchased by companies including car parts, dealers, tuning, classifieds, shipping services, insurance companies, web designers and mobile app developers. I am planning to offer in the future also API SaaS web service beside Excel download.

HDB dwelling units per town and flat type

HDB statistics, facts & figures

– Number of dwelling units by town and flat type, table and chart
– Number of dwelling units by town and year 1990-present, table and chart
– Number of dwelling units by flat type and year 1990-present, table and chart
– Statistics for calculation of the average flat size along history
– HDB achievements since 1960
– Resale market statistics

Mobile Phones Database

Mobile phones database

I created an Excel database containing over 11,000 devices from 1994 cell phones to modern smartphones, tablets and smartwatches, with 88 columns of specifications. Useful if you want to create a website, use in a GSM shop or anything similar. I offer FREE monthly updates and weekly updates for $100/year.

HDB flat size comparison

HDB flat types and their sizes

Flat types guide: 1E, 2E, 1STD, 2STD, 3STD, 4STD, 5STD, 1I, 2I, 3I, 4I, 5I, 3NG, 4NG, 3S, 4S, 3A, 4A, 5A, EA, EM, MG, HUDC… Studio Apartment, 2-Room Flexi, 3-Room, 4-Room, 5-Room, Emergency, Standard, Improved, New Generation, Simplified, Model A, Executive Apartment / Maisonette, Multi-Generation, Standard vs Premium apartment.

domain name deas

Possible rebranding of my website, your feedback needed!

What if my website will be split into different domain names that define PRODUCT rather than AUTHOR name? I need your opinion whenever I should or shouldn’t do this rebranding, and if yes, you can suggest domain name ideas.

1. Database selling website, for and
2. Housing information website, for and
3. Architectural design website, for
4. The Sims website, for
All websites will have “about me” buttons linking to which will also contain projects that does not fit in any of the 4 websites.

Index of databases made by Teoalida

During my live I made over 100+ databases, from personal interest to distribute freely or sell for professional use. Some projects I made at request and published on website to allow other customers to purchase if interested. They have been used by numerous people from students practicing data analysis, to multi-national companies in real estate and automobile industry. I offer web scraping services in VB.NET and Python, making custom databases according your requirements. I work in Word and Excel, other file formats available: CSV, SQL, XML, JSON.

Braddell View HUDC

List of HUDC estates

Officially there are 18 HUDC estates, but actually Housing and Urban Development Company built 22 estates for middle-income people, including 3 not managed as public housing and one demolished in 1990s. HDB took over JTC and HUDC in 1982. Phase III and IV are HUDC flats built by HDB, last HUDC was completed in 1987. HUDC was replaced by Executive HBD flats built since 1984.

Apartment design

Apartment models designed by me

Here are my best designs made by me from personal interest (artistic hobby / training) as well as for various customers, from 2008 to around 2016 when I retired from architecture for more profitable IT industry. While I am not making new designs anymore, I have over 100 designs (editable AutoCAD DWG files) available for download.

Princess Elizabeth SIT blocks

List of HDB SERS sites

Selective En-bloc Redevelopment Scheme was introduced in 1995. 71 sites were selected by 2007 and another 11 sites in 2008-2012. This page shows list of SERS sites and (personal prediction) future SERS sites. On 19 August 2018 HDB announced that only 5% of total sold flats are eligible for SERS, of which 4% have been selected already. For all other flats there will be VERS (Voluntary En-bloc Redevelopment Scheme) that will start in ~20 years (probably in 2036 when first leases reach 70 years old).

HDB flats size over years

HDB flats size 1960-2010 analysis: are the flats shrinking?

Ministry of National Development, Khaw Boon Wan, said in 2012 that HDB flats have been the same size for last 15 years and are not shrinking. This article has been copied on numerous blogs.

As you can see in the following chat, the 4-room flats leased in 2000 were 90 sqm and 4-room flats launched in 2012 (TOP 2016) are the same 90 sqm, so he is not lying, instead he is masking the shrinking that occurred 15-20 years ago, also he does not take in consideration that the 4-room flat was the smallest flat type in 2000, while today it is the average flat type.

Housing Design

My career as architectural designer and “Teoalida’s Virtual City”

I started self-studying architecture in 2008 and designed “Teoalida’s Virtual City”, originally a hobby of graphic design and 3D modeling in AutoCAD, but a fully functional housing system. Since 2012 numerous people contacted me for architectural design services, but my career was horrible, and in 2015 I stopped architectural studies and not offer such services anymore.

This article must be read by all students BEFORE choosing architecture universities, to understand what you should expect and not end like me!


List of Executive Condos

Executive Condominium (EC) is a form of subsidized housing built by private developers, having same eligibility restrictions like HDB (family nucleus, citizens and permanent residents), you should dispose any other property 30 months before applying, minimum occupation period of 5 years before you can sell to citizens and PR, even single PR. After 10 years since TOP date, all restrictions are lifted and even single foreigners can buy. I made an interactive map with TOP dates.

World Cities Database

World cities database

Worldwide cities database organized by country, state and province, with city population indicated. An original product “Made by Teoalida” that you will NOT find elsewhere on internet, compiled by me since 2003 and gradually expanded over years, based on Microsoft Encarta Encyclopedia. Currently it include over 16000 cities, more exactly ALL cities in the world with population over 20,000 people.

Web scraping services

Web scraping services

I offer data mining and web scraping services. “Scraping” usually means coding a bot that visit a list of given pages, copy specific data from each page and put it in an Excel / CSV file automatically, at rate of few pages per second. Watch the video!

If you are building a website, a mobile app, or just require specific data but cannot find in usable format, just give me link to a website having required data, I will make a scraper and turn website into an Excel database, for you and for future customers.


The world of Teoalida

About me – resume – portfolio – fields of activity

I am Teoalida and I love doing research, collecting information, writing articles and making databases about real estate, cars, and other fields, as well as designing own housing models. Also playing games with buildings. I made this website since 2009 to share knowledge and educational material, sell my works and promote my services, and make new (business) friends.

If you have any enquiry about AutoCAD, architecture, real estate, databases, research, data mining and analysis, or any other stuff covered by articles of this website, comments about my works, errors to report, suggestions, critics, etc, feel free to contact me, please use Live chat whenever is possible, alternatively use Skype, or email me [email protected].

Teoalida Music Database

Music Database

We all love music, but I may be the only person who made an Excel database and show to everyone what are my musical preferences in the style of a data scientist. Since 2005 I use Excel to organize the music I am listening, rate each songs from 0 to 16, then use complex mathematical formulas to calculate scores and rank best artists, best albums, best music genres, etc.