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The Sierra

The Sierra

Developer: Kohs Brothers Development Pte Ltd
No. Of Units: 60 Residential Units
Tenure: 947 Year Leasehold
District: 10
TOP: 1998
Unit Types:
1 Bedroom (635 to 710 sqft)
2 Bedroom (979 to 1205 sqft)
3 Bedroom (2906 to 3014 sqft)

Category: Tags: , , ,

About The Sierra


The Sierra is a freehold apartment located in District 10, 80 Mount Sinai Drive. It was completed in 1998 has a total of 60 residential units. The nearest MRT station is Dover MRT (0.767km) which provide residents easy access to other areas of Singapore.

The Sierra is also close to primary schools like Henry Park Primary School (0.448km), Pei Tong Primary School (1.42km), Anglo-Chinese School (Independent) (1.60km), Methodist Girls’ School (Primary) (1.66km) and NUS High School Of Mathematics And Science (1.77km). Nearby Secondary Schools include School of Science And Technology, Singapore (0.908km), New Town Secondary School (1.22km), Methodist Girls’ School (Secondary), Nan Hua High School (1.72km) and Fairfield Methodist School (Secondary) (1.86km).

The Sierra also enjoy easy access to a variety of amenities, including The Star Vista (1.53km), Rochester Mall (1.67km), Grantral Mall (1.75km), The Clementi Mall (1.78km) and Holland Village Shopping Mall (1.79km).

The Sierra Location Map


The Sierra Street View


The Sierra Resale/Rental Prices







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THE SIERRA Sales and Rental Transactions

Share a link to the applied filters and selected section. Figures update over time.

Property market snapshot

Prices, rents and activity

Nov 2025 – Oct 2026

Size and bedroom options show recorded transactions in the selected period; they do not describe every unit type in the development. The period ends before the current month. Sales filters apply to sales; bedroom selection applies to rentals. The same filters apply to the figures, charts and transaction tables below.

THE SIERRA · Nov 2025 – Oct 2026
The imported URA data contains 0 sales and 10 rental contracts matching the selected period and filters.

No qualifying single-unit sale prices are available in this view. No qualifying strata sale PSF figures are available in this view. Median monthly rent: S$4,550, based on 10 rental contracts.

Sale type: All sale types. Sales unit size: All unit sizes. Rental bedrooms: 3 bedrooms. Historical transactions describe this sample, not current asking prices, rental listings or a valuation.

Median sale price—0 single-unit sales · All sale types
Median sale PSF—0 strata sales · All sale types
Median monthly rentS$4,55010 rental contracts
Recorded activity0 sale records10 rental contracts · selected period

The sale cards combine sale types. Choose New Sale, Sub Sale or Resale for a focused comparison; the size breakdown keeps those types separate.

Sale prices by unit size

Median transaction price; sale types shown separately. Bars share a zero-based scale within this panel. Select a size label to filter sales.

No qualifying single-unit sales in this view. Try a longer period or another sale type.

Monthly rents by bedrooms

Median monthly rent. Bars share a zero-based scale within this panel. Select a bedroom label to filter rentals.

3 bedrooms10 rental contracts
S$4,550 / monthMiddle 50%: S$4,300 – S$4,638
Exact rental breakdown and rent extremes
BedroomsContractsMedian rentMiddle 50%Min–max rent
3 bedrooms10S$4,550S$4,300 – S$4,638S$3,500 – S$5,000
How to read these figures

Medians describe the transactions in this view, not a valuation or a change in every home’s value. Middle 50% is the 25th–75th percentile, shown only with at least five observations; smaller groups are flagged. Minima and maxima are available in the breakdown tables. Percentiles use linear interpolation.

Price and PSF statistics include only sales explicitly recorded as one unit. Bulk sales and records with an unknown unit count remain in the detailed table when All unit sizes is selected. PSF uses unrounded strata area; size bands use rounded square feet. A size band does not identify bedrooms, penthouses, layout or unit condition.

Rental bedrooms are as reported; missing or non-numeric values are Not stated. Rental sizes are ranges. Rents and sales are separate samples: no project yield or exact rental PSF is inferred.

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THE SIERRA · Nov 2025 – Oct 2026 · All sale types · All unit sizes · 3 bedrooms

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Test your assumptions

Rental yield calculator

Enter a purchase price and monthly rent for the same home. Results update as you type. Your assumptions stay in this page while you change transaction filters; they are not submitted or saved.

Rental reference in the selected view: median S$4,550 / month from 10 contracts. These contracts may cover different-sized homes. Check the bedroom breakdown and records before choosing your rent assumption.

Optional vacancy and running expenses

Blank expense fields count as zero. Enter annual costs for the full year; they are not reduced during vacancy.

Enter purchase price and monthly rent to calculate.

Calculation and exclusions

Gross rental yield = monthly rent × 12 ÷ purchase price × 100.

Annual income after entered expenses = monthly rent × (12 − vacant months) − monthly maintenance × 12 − annual property tax − other annual running costs. Yield after entered expenses divides that income by purchase price.

Results use your assumptions and are indicative, before financing and personal income tax. The denominator excludes stamp duties, legal fees, renovation, furnishing and other acquisition costs. Include recurring insurance, repairs and letting costs in other running costs where relevant. No appreciation, mortgage repayment or return on equity is calculated. Historical rental contracts do not guarantee future rent or occupancy.

History and activity

How transactions changed over time

Monthly · Nov 2025 – Oct 2026

The active filters also apply here. Value axes start at zero and adjust to the selected records; check their labels when comparing views. Each point shows a period median; the bars below count recorded sales or rental contracts. Different sale types and rental bedroom counts have separate series. These changes can reflect the mix of homes transacted, rather than appreciation of an individual home.

Sale PSF history

Median S$/sqft for single-unit strata sales, by sale type.

No qualifying sales in this period and filter selection. Existing rental-configuration boundaries remain applied.

Monthly rent history

Median monthly rent in S$, by reported bedroom count.

3 bedrooms
Median S$/monthS$0S$1,300S$2,600S$3,900S$5,200Feb 2026 · 3 bedrooms · S$4,300 / month · 1 rental contract · limited sampleMay 2026 · 3 bedrooms · S$4,450 / month · 2 rental contracts · limited sampleJun 2026 · 3 bedrooms · S$4,550 / month · 4 rental contracts · limited sampleJul 2026 · 3 bedrooms · S$3,500 / month · 1 rental contract · limited sampleAug 2026 · 3 bedrooms · S$4,600 / month · 1 rental contract · limited sampleSep 2026 · 3 bedrooms · S$4,900 / month · 1 rental contract · limited sampleRental contracts per period0Nov 250Dec 250Jan 261Feb 260Mar 260Apr 262May 264Jun 261Jul 261Aug 261Sep 260Oct 26

On a narrow screen, swipe the chart horizontally. Tap a point/bar or use the period controls for exact figures.

Sep 2026

1 rental contracts in this period.

  • 3 bedrooms: S$4,900 / month · 1 rental contract · limited sample
Exact history and activity table
Period3 bedrooms median rent3 bedrooms rental contractsRental contracts
Nov 2025—00
Dec 2025—00
Jan 2026—00
Feb 2026S$4,3001 (limited)1
Mar 2026—00
Apr 2026—00
May 2026S$4,4502 (limited)2
Jun 2026S$4,5504 (limited)4
Jul 2026S$3,5001 (limited)1
Aug 2026S$4,6001 (limited)1
Sep 2026S$4,9001 (limited)1
Oct 2026—00

Filled points have at least five qualifying observations; hollow points have fewer than five. Lines join only adjacent filled points. Gaps are not estimated or filled with zeros. For five-year views, edge quarters marked * may contain fewer than three selected months. Sale activity bars include all selected sale records; PSF points use only qualifying single-unit strata sales.

Individual sale comparison

Sale price versus unit size

Nov 2025 – Oct 2026 · 0 qualifying sale records. The period, sale-type and unit-size filters above apply. Bedroom filters affect rentals only

No qualifying single-unit strata sales in this selection. Try another period, sale type or unit size.

Sales Transactions

No matching records in the selected period and filters.

Rental Contracts

Latest recorded lease start: Sep 2026.

Lease start monthBedroomsArea range (sqft)Monthly rent (S$)
Sep 202631000-11004,900
Aug 202631200-13004,600
Jul 202631000-11003,500
Jun 202631200-13004,600
Jun 202631200-13004,650
Jun 202631200-13004,500
Jun 202631000-11004,300
May 202631200-13005,000
May 202631000-11003,900
Feb 202631000-11004,300

Last downloaded: 27 Oct 2026, 17:10 SGT. 10 matching records in the selected period.

Source: Urban Redevelopment Authority (URA), accessed through the URA Data Service. Data made available under the Singapore Open Data Licence. Areas are rounded; rental areas are ranges. Records may be revised and do not identify exact units. Multiple transactions in the same month are not ordered by day. These records are historical transactions, not current listings or valuations.

The Sierra 1 Bedroom Type A1, A2 Floor Plan

The Sierra 1 Bedroom + Study Type B, B1 Floor Plan

The Sierra 2 Bedroom + Study/3 Bedroom Type C1, C2 Floor Plan

The Sierra 3 Bedroom Type D Floor Plan

The Sierra 4 Bedroom Penthouse Type E Floor Plan

The Sierra 4 Bedroom Penthouse Type F Floor Plan

The Sierra 4 Bedroom Penthouse Type G Floor Plan

Foundation
-Bored pile foundation.

Superstructure
-RC framework ( reinforced concrete using Grade 30 concrete ).

Walls
External : Common bricks.
Internal : Common bricks.

Roof
Flat Roof
-Concrete roof with appropriate waterproofing.

Ceiling
-Fibrous plaster board to kitchen, baths and toilet.
Cement and sand plaster finish for store and yard. Cornices to living, dining and bedrooms.

Finishes
Wall
-Internal :
Ceiling - height ceramic wall tiles for kitchen, baths and toilet. ( Marble tiles for master bathroom). Cement and sand plaster with emulsion paint in other area.

-External :
Cement and sand plaster with acrylic-textured coating.

Floor
-Internal :
Marble floor for living, dining and master bathroom. Ceramic tiles for kitchen, bath and toilet. Timber strips for all bedrooms.

-External :
Ceramic tiles or paving blocks to part of 1st storey carpark and driveway. Concrete surface with hardener to basement driveway and carpark.

Sanitary Fittings
-Good quality sanitary fittings will be provided.

Door
-Timber door with quality ironmongery to main entrance, bedrooms, baths and kitchen.

Windows
-Powder coated aluminium framed windows with tinted glass to living, dining, bedrooms, kitchen, baths and toilets.

Electrical Installation
-Ample electrical points will be provided. TV/FM outlets provided for living and bedrooms. Telephone outlet provided for living and bedrooms.

Lightning Protection
-In accordance with Singapore standard CP33:1985

Waterproofing
Waterproofing to be applied to baths, toilets, kitchen, yard and flat roofs.

Gate And Fencing
Decorative gate at entrance and plastered brickwall along boundary.

Additional Item
Split unit air-conditioning to living, dining and bedrooms. Kitchen cabinets with cooker hob, hood and oven. Wardrobes. Water heaters. Audio Visual System to individual units. Security system to main lobby and basement carpark.

Recreational Facilities
Swimming Pool. Wading Pool. Sauna Room. BBQ Area. Gymnasium.

Project Team
Architect
Architects Group Associates Pte Ltd

Structural Engineer
Y F Chan Consulting Engineers

M & E Engineer
Beca Carter Hollings & Ferner

Quantity Surveyor
WT Partnership Quantity Surveyors

Interior Designer
Tema Collections

Main Contractor
Projection Pte Ltd