All 102 buildings screened in Downtown Boston

Every office-linked building this screen covers in Downtown Boston, ranked by office-to-housing conversion suitability. Of the 96 conversion candidates, 76 score 70 or more. 72 pencil at default assumptions without a subsidy, and 8 only with a modeled RESIDE Act grant. Each address opens that building’s own analysis: its floor plate, why it scores what it does, what the conversion would cost and what would have to change for it to work. 3 are already apartment or condominium buildings by the city's own property records; they are listed so they can be found, marked as housing, and left out of the counts above. 3 more have residential records on a parcel shared with other buildings, so which building holds those homes is not recorded; they are marked "Excluded: residential records on a shared parcel; building use unverified" and left out of the counts above without being called housing.

MA-7 & MA-8 · Screened 2026-10-04 · The same buildings are mapped, with every assumption adjustable, in the Downtown Boston survey.

Buildings in Downtown Boston by conversion suitability score, modeled 2026-10-04. “Short” is the gap left after the modeled RESIDE grant.
#	Address	Score	Stories	Homes	Daylit	Depth	At default assumptions
1	36-44 Broad St	100	10	248	96%	38 ft	Pencils
2	147 Milk Stalso 2 Oliver St	100	10	259	100%	32 ft	Pencils
3	315-333 Washington St	100	8	160	97%	33 ft	Pencils
4	417-435 Washington St	100	10	152	100%	35 ft	Pencils
5	157-175 Devonshire Stalso 45 Milk St	100	11	162	97%	40 ft	Pencils
6	252-272 Tremont St	99	13	141	100%	36 ft	Pencils
7	150 Tremont Stalready a condominium building, 372 condominiumsalso 151 Tremont St	99	22	525	89%	35 ft	Already housing
8	150-152 State St	98	8	131	100%	30 ft	Pencils
9	14-24 Federal Stalso 77-81 Milk St	98	11	130	98%	38 ft	Pencils
10	99 Chauncy Stalso 105-111 Chauncy St	98	11	178	97%	44 ft	Pencils
11	100-110 Sudbury Ston a shared parcel: 55 homes and an apartment building of unrecorded size	97	46	550	90%	44 ft	Excluded: residential records on a shared parcel; building use unverified
12	20 Custom House St	97	12	119	98%	39 ft	Pencils
13	74-84 State St	97	10	116	98%	40 ft	Pencils
14	43-45 Devonshire Stalso 1-1A State St	96	13	111	96%	40 ft	Pencils
15	75-101 Federal St	96	21	257	89%	45 ft	Pencils
16	28-38 Winter St	95	14	106	95%	41 ft	Pencils
17	40 Rowes Whfon a shared parcel: 94 condominiums	95	9	96	96%	39 ft	Excluded: residential records on a shared parcel; building use unverified
18	155 Federal St	95	18	191	92%	49 ft	Pencils
19	6-6B Beacon St	94	10	92	100%	28 ft	Pencils
20	12-14A Beacon St	94	9	85	100%	27 ft	Pencils
21	101 Federal St	93	31	569	91%	50 ft	Pencils
22	15 Court Sq	93	11	81	100%	29 ft	Pencils
23	20 Ashburton Plalso 122-126 Bowdoin St	93	8	78	99%	38 ft	Pencils
24	16-18 Kingston St	93	22	313	88%	49 ft	Pencils
25	77 Franklin St	93	11	77	100%	31 ft	Pencils
26	103-111 Devonshire St	93	11	76	100%	34 ft	Pencils
27	30-40 Court Stalso 45 School St, 2-16 Tremont St, 18-32 Tremont St	92	7	290	94%	53 ft	Pencils
28	181-185 Devonshire St	92	10	68	100%	32 ft	Pencils
29	31-39 Bromfield Stalso 41 Bromfield St, 45-51 Bromfield St	91	11	64	100%	25 ft	Pencils
30	21 Custom House St	91	9	82	92%	43 ft	Pencils
31	88 Broad St	91	9	65	96%	41 ft	Pencils
32	11 Avenue De Lafayette	91	6	61	99%	37 ft	Pencils
33	48-52 Boylston Stalready housing, an apartment building of unrecorded size	91	7	61	100%	28 ft	Already housing
34	70 Federal St	91	9	60	100%	31 ft	Pencils
35	100 City Hall Plz	91	7	58	100%	35 ft	Pencils
36	276-278 Washington St	91	9	55	100%	23 ft	Pencils
37	89-103 Bedford St	91	8	300	93%	55 ft	Pencils
38	133 Federal St	90	13	117	91%	50 ft	Pencils
39	1-11 Court Stalso 1 Washington Mall	90	16	233	85%	49 ft	Pencils
40	1-3 Center Plz	90	11	549	84%	47 ft	Pencils
41	62-74 Essex St	90	8	70	96%	43 ft	Pencils
42	64-74 Franklin St	90	10	94	91%	47 ft	Pencils
43	125-135 Congress St	90	8	49	98%	39 ft	Pencils
44	25-55 Court Stalso 63-65 Court St	90	5	46	100%	31 ft	Pencils
45	32-38 Bromfield St	89	6	44	100%	35 ft	Pencils
46	23-29 School St	89	7	43	100%	30 ft	Pencils
47	42-60 Federal St	89	10	81	92%	46 ft	Pencils
48	83-87 Summer Stalso 91-95 Summer St, 99 Summer St, 101-103 Summer St	89	6	92	90%	48 ft	Pencils
49	2 Park Plz	89	7	39	100%	32 ft	Pencils
50	55-61 Batterymarch Stalso 274 Franklin St	89	7	38	100%	30 ft	Pencils
51	60-70 Temple Pl	89	7	50	95%	42 ft	Pencils
52	177 Milk St	89	10	96	90%	50 ft	Pencils
53	20 Winthrop Sq	89	6	36	100%	36 ft	Pencils
54	22-40 Chauncy Stpart residential: 21 condominiums alreadyalso 42-48 Chauncy St, 52-58 Chauncy St	88	11	195	86%	52 ft	Pencils
55	105-111 Summer St	88	6	33	100%	35 ft	Pencils
56	28 State St	88	42	621	83%	49 ft	Pencils
57	25-31 West St	88	5	31	100%	30 ft	Pencils
58	172-180 Federal St	88	7	63	91%	46 ft	Pencils
59	175 Federal St	87	20	232	83%	51 ft	Pencils
60	1 Liberty Sq	87	13	156	84%	53 ft	Pencils
61	20 Rowes Whfresidential records on a shared parcel: 94 condominiumsalso 50 Rowes Whf	86	18	643	84%	54 ft	Pencils
62	218-230 Congress St	85	12	202	82%	53 ft	Pencils
63	50 Milk St	85	23	289	83%	55 ft	Pencils
64	71-75 Kilby Stalso 2 Liberty Sq, TEN Post Office Sq, 10 Post Office Sq and 1 more	84	13	451	89%	64 ft	Pencils
65	260 Franklin St	84	26	358	81%	53 ft	Pencils
66	207-211 Congress Stalso 100 High St	84	32	550	82%	55 ft	Pencils
67	600 Atlantic Ave	83	50	1,009	76%	48 ft	With grant
68	10-30 School Stalso 24 School St	81	9	120	86%	59 ft	Pencils
69	21-23 Beacon Stalready a condominium building, 155 condominiums	80	10	119	83%	57 ft	Already housing
70	225 Franklin St	80	40	722	75%	50 ft	With grant
71	466-472 Atlantic Ave	80	15	308	77%	54 ft	Pencils
72	15 New Chardon St	79	12	154	82%	61 ft	Pencils
73	17-33 Winter St	78	7	82	83%	55 ft	Pencils
74	40-62 Franklin Stalso 60 Franklin St	76	5	47	85%	55 ft	Pencils
75	200 State St	75	18	547	80%	65 ft	Pencils
76	14 Bowdoin Stresidential records on a shared parcel: 75 condominiumsalso 100 Cambridge St	74	25	633	75%	60 ft	With grant
77	1 Lincoln St	73	41	945	77%	65 ft	Pencils
78	93-101 Arch Stalso 103-111 Arch St	72	22	389	74%	61 ft	With grant
79	33 Arch St	71	34	620	72%	60 ft	$5.7M short
80	390-400R Atlantic Ave	71	7	85	79%	60 ft	Pencils
81	90 Oliver St	70	45	743	76%	68 ft	With grant
82	150 Oliver St	70	50	986	80%	74 ft	Pencils
83	300 Boylston Stpart residential: 86 condominiums already	70	13	275	76%	69 ft	With grant
84	255 State St	68	11	162	74%	68 ft	With grant
85	25 New Chardon St	67	7	87	78%	65 ft	Pencils
86	100 Summer St	67	35	856	74%	70 ft	$3.1M short
87	60 State St	67	42	720	73%	68 ft	$5.3M short
88	69-81 Tremont St	64	14	258	72%	72 ft	With grant
89	669-671 Atlantic Ave	63	49	1,019	67%	62 ft	$51.1M short
90	1 Federal St	62	43	916	68%	65 ft	$43.8M short
91	43-65 State St	61	45	940	67%	64 ft	$49.7M short
92	99 High St	61	34	593	70%	72 ft	$15.1M short
93	1 Beacon St	55	42	881	65%	72 ft	$55.6M short
94	518-540 Atlantic Avepart residential: residential records without a unit countalso 530 Atlantic Ave, 278-294 Congress St, 290 Congress St	52	35	1,214	66%	78 ft	$76.0M short
95	15-19 Broad Stalso 75 State St	35	33	706	68%	100 ft	$28.0M short
96	185 Franklin St	35	29	584	54%	94 ft	$94.8M short
97	100 Federal St	35	50	1,164	62%	92 ft	$113.5M short
98	588-622 Washington St	35	8	199	53%	101 ft	$29.2M short
99	1 Avenue De Lafayettealso 2-20 Avenue De Lafayette	35	22	721	59%	107 ft	$87.2M short
100	245 Summer St	35	19	586	55%	100 ft	$88.2M short
101	2 Congress Ston a shared parcel: 55 homes and an apartment building of unrecorded sizealso 50 Sudbury St, 200-210 Sudbury St	29	10	506	48%	100 ft	Excluded: residential records on a shared parcel; building use unverified
102	21-53 Summer St	27	11	401	47%	134 ft	$101.9M short

A screen, not a feasibility study, from building outlines and heights rather than plans. How the score is computed and how to correct a figure.