購屋者常以價格與交通便利性為主要決定因素，但根據調查顯示：外在環境因素（包含了社區環境、鄰里環境、交通便利性）的重要性對於購屋者而言仍大於價格。雖然目前已有部分相關的研究分析，但在影響住宅購買決策因素上涉及問卷調查之研究，常以專家問卷（即房仲業者、建設公司）作為研究主要探討對象，卻沒有針對購屋者自用住宅真正的需求進行之研究。本研究以台北市目前現有住戶及潛在購屋者之自用住宅對周遭環境的需求為主要研究目標，蒐集自用住宅、購屋者需求、住宅選擇、決策理論等文獻資料，透過決策模式探討購屋者對自用住宅環境設施的需求，並建立層級分析法（Analytic Hierarchy Process, AHP）的分析層級架構，探討住宅設施需求之優先權重比，藉此了解各類型購屋者對其自用住宅周遭環境設施的需求。研究結果顯示：各導向的購屋需求者所注重住宅周遭的設施有類似的看法，前五項注重的設施皆包含捷運站、停車設施、各級學校、便利超商及公車站（牌）；顯示即使各購屋者對於自用住宅有不同需求的考量，仍有些「重要設施」為購屋者所看重，除了教育導向的購屋需求者於各級學校的需求較高外，交通及生活導向的購屋需求者均以捷運站、停車設施為最主要考量因素；而各項環境設施於子構面中序位的排列在不同導向的購屋需求者中是大致相同的：以交通設施來說，捷運站、停車設施、公車站（牌）為主要考量；在文教設施方面則是以各級學校及圖書館為主；便利商店及超市/市場則是在生活設施中最被看重的項目；休閒設施則普遍不被購屋者所看重；而安全設施中，醫院診所的需求權重則顯示偏高。Recent studies to discuss necessities for housing buyers mostly focused on the viewpoint of builders or real estate developers. A survey for buyer individuals to explore their necessities is desired. The study goal, therefore, is to identify potential housing buyers’ necessities using Analytic Hierarchy Process (AHP) approach. Literature review in this study brought out potential environmental features in urban area, including 5 aspects 23 features. 324 out of 1000 AHP-designed questionnaires were collected satisfying the data sampling threshold of 270 effective returns. Statistical and AHP analyses find that the priority sequence of these 5 aspects is transportation facility, civil facility, educational facility, security facility, and recreation facility. The top preference ranking for environmental features is concluded as mass rapid transit station, parking lot, school, convenient store, and bus stop. Compared with findings in other studies, this study clearly points out difference between viewpoints. Housing builders may consider adjustment for their strategies to decide their product features.
