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Interior Design Fees in Hong Kong: What You're Paying For香港室內設計費：你付的是甚麼

Why a design fee sits on top of the build cost, the three fee models used in Hong Kong, and why one accountable design-and-build team removes the blame gap.為甚麼設計費要另加於裝修費之上、香港常見的三種收費模式，以及為甚麼一隊負責到底的設計連工程團隊能消除互相卸責的空隙。

The thinking and the doing are two different costs

When people see a design fee (室內設計費) on top of the build cost, the natural question is aren’t I paying twice? You aren’t, you’re paying for two different things. The build cost is the doing: demolition, trades, joinery, materials. The design fee is the thinking: the brief, the space planning, the look, the construction drawings, and the supervision that checks the finished flat matches the drawings. Understanding the split makes the fee easy to judge, and makes clear where it quietly saves you money.

What a full design service includes

  • Concept and layout, how the space works before it looks like anything.
  • Material and finish selection, the schedule that turns a mood into buildable choices.
  • Detailed construction drawings, what the trades actually build from.
  • Design supervision during the build, someone checking that built equals drawn.

Some studios include 3D visualisations in this; some charge them as an add-on. Ask up front, so a render doesn’t turn up later as a surprise line.

The three fee models in Hong Kong

  1. Per-project, priced against the scope of a clearly defined brief. Suits a well-understood job.
  2. Area-based, scales with the size of the home. Predictable as the flat grows.
  3. Combined design-and-build, one team prices and delivers both, simplifying accountability.

Why design-and-build removes the blame gap

Hiring a designer and a contractor separately can give a clean separation of roles and competitive contractor pricing. But when a problem appears on site, a beam not shown on the developer’s plan, a service that has to move, responsibility can fall between the two parties, and you end up mediating. Design-and-build puts the drawings and the construction under one accountable team: no translation loss between intent and execution, and one point of responsibility from the first sketch to handover.

The best way to think about a design fee

Treat it as risk reduction. A decision changed on paper is almost free; the same decision changed on site is slow and expensive. A layout properly resolved before demolition, a services survey done before the ceiling is designed, a material schedule locked before ordering, each of these is a mistake that never happens. Good design is largely expensive mistakes avoided.

How Primeworks handles this

Our design phase carries a small, fully creditable deposit, nominally HK$10 per square foot, that comes straight off the contract if you proceed to build within the window. So the design work is not an extra you pay and lose; it’s a step that either credits back in full or, if you decide not to build, has still bought you a complete concept, layout, material schedule and itemised quotation to take forward. And because we design and build under one team, the drawings and the site answer to the same people.

「思考」與「執行」是兩筆不同的費用

當人們看到裝修費之上還有一筆室內設計費，自然會問：我是不是付了兩次？ 並非如此，你付的是兩件不同的東西。裝修費是執行：清拆、各項工種、木器、物料。設計費是思考：簡介、空間規劃、風格、施工圖，以及監督建成的單位與圖則一致。理解這個分別，設計費便容易判斷，也看清它在何處於無形中為你省錢。

一項完整的設計服務包括甚麼

  • 概念與佈局，在空間有任何模樣之前，先讓它運作得宜。
  • 物料與飾面挑選，把一種氛圍轉化為可施工選項的清單。
  • 詳細施工圖，各工種實際依據施工的圖紙。
  • 施工期間的設計監督，有人核對建成的與畫出的一致。

有些工作室把立體效果圖包含在內；有些則另作加項收費。事先問清楚，以免效果圖日後變成一項意料之外的收費。

香港的三種收費模式

  1. 按項目，按清晰界定的簡介範圍定價。適合已充分了解的工程。
  2. 按面積，隨居所面積遞增。單位愈大，收費愈可預算。
  3. 設計連工程一體化，由一隊團隊為兩者定價並交付，簡化問責。

為甚麼設計連工程能消除卸責空隙

分開聘請設計師與承建商，可帶來清晰的角色分工及具競爭力的判頭價。但當現場出現問題，一條發展商圖則上沒標示的橫樑、一項需要遷移的設施，責任可能落在雙方之間的夾縫，結果由你居中調停。設計連工程把圖則與施工放在同一隊負責的團隊：意圖與執行之間不會走樣，由第一張草圖到交場只有一個責任所在。

理解設計費的最佳角度

把它視為降低風險。在紙上改決定幾乎不花錢；在現場改同一個決定既慢又貴。清拆前妥善解決的佈局、設計天花前完成的設施勘察、落單前鎖定的物料清單，每一項都是一個從未發生的錯誤。好的設計，很大程度上就是避免了昂貴的錯誤。

Primeworks 的做法

我們的設計階段收取一筆小額、可全數扣抵的訂金，名義上為每平方呎 HK$10，只要你在期限內開展工程，便會直接從合約中扣減。因此設計工作並非付了就沒有的額外開支；它是一個步驟，要麼全數扣回，要麼即使你決定不動工，也已為你換來一套完整的概念、佈局、物料清單及逐項報價，可帶著繼續前行。而因為我們由同一隊團隊設計並施工，圖則與現場都向同一班人負責。

Frequently Asked Questions常見問題

Why is there a design fee on top of the build cost?點解起裝修之外仲要俾設計費？ +
Because they pay for two different things. The design fee covers the thinking, the brief, space planning, the look, the construction drawings, and supervision to check that what gets built matches what was drawn. The build cost covers the doing, demolition, trades, joinery and materials. Good design is largely expensive mistakes avoided: a decision changed on paper costs nothing, the same decision changed on site is slow and expensive.因為兩者付的是不同的東西。設計費付的是「思考」, 簡介、空間規劃、風格、施工圖，以及監督確保建成的與圖則一致。裝修費付的是「執行」, 清拆、工種、木器及物料。好的設計很大程度上是避免了昂貴的錯誤：在紙上改決定不花錢，在現場改同一個決定既慢又貴。
How are interior design fees charged in Hong Kong?香港室內設計費點計？ +
Three models are common: per-project (priced by the scope of a clearly defined brief), area-based (scaling with floor area), and a combined design-and-build engagement where one team handles both. Some designers include 3D visualisations; some charge them separately, ask up front what the fee covers.常見三種模式：按項目（按清晰簡介的範圍定價）、按面積（隨呎數遞增），以及設計連工程一體化（由一隊團隊包辦兩者）。有些設計師包立體效果圖，有些另收，事先問清楚設計費包含甚麼。
Is design-and-build better than hiring a designer and contractor separately?設計連工程好過分開請設計師同判頭嗎？ +
Design-and-build puts the drawings and the construction under one accountable team, so there is no blame gap and no meaning lost between what the designer intended and what the contractor builds. Hiring separately can give cleaner separation and competitive contractor pricing, but when a site problem appears the responsibility can fall between the two parties. For most Hong Kong flats, single-point accountability is the simpler, safer choice.設計連工程把圖則與施工放在同一隊負責的團隊，沒有互相卸責的空隙，設計師的意圖與判頭的施工之間也不會走樣。分開聘用可帶來較清晰的分工及較有競爭力的判頭價，但現場一旦出問題，責任可能兩邊落空。對大多數香港單位而言，單一問責是更簡單穩妥的選擇。

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